Storage product fiberglass and articles thereof
A Broward County Storage Tank Facility License is required prior to building, erecting, operating, modifying, closing or replacing in whole or in part any storage tank system that is intended to store hazardous material in Broward County. Aboveground storage tank systems with capacities greater than gals and underground storage tank systems with capacities greater than gals are subject to Broward County Chapter 27, Article X, Storage Tanks regulation. It shall be prohibited to dismantle, remove, disconnect, cease to operate, close or decommission Stage II systems without applying for, and obtaining a License Modification approval prior to performing any of the aforementioned activities. The License approval process consists of the review of a Broward County Storage Tank Facility License application along with engineering drawings signed and sealed by a Professional Engineer P.VIDEO ON THE TOPIC: Short Shelf Life Products - Long Term Storage
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- Kydex Filament
- Guidelines for environmental protection measures at chemical and waste storage facilities
- US4363687A - Method for making large fiberglass structures - Google Patents
- US4660738A - Leak-resistant fiberglass tank and method of making the same - Google Patents
- All 2,493 US products targeted by China’s new 25% tariffs
- US20070258767A1 - Fiberglass mats and assemblies thereof - Google Patents
- US2478186A - Storage battery separator - Google Patents
- FIELD OF THE INVENTION
- US3459585A - Novel reaction product and use thereof as a glass fiber size - Google Patents
Use of plastic articles, in particular such as pipes, cylinders and various reservoirs for storage and conveying various liquids and gases is widely known in the art. However, said polyolefin materials have insufficiently high strength characteristics limiting their resistance to internal medium pressure and to external mechanic effects in particular those that could damage a pipe. So low strength allows for using polyethylene pipes under internal operational pressure of not more than 12 atm, at the same time, with a pipe wall thickness having to be about 0.
Therefore, manufacturing such articles in the form of multilayer products with reinforcement is widely used in the art. At that, these reinforced articles pipes etc. As a rule, one or more intermediate layers providing for adhesion of the mentioned internal and external layers with formation of an integrated composite article structure can also be present. Since strength of a reinforcing material can by an order enhance the strength of polyolefines in particular polyethylene , then thickness of the sealing layer can be significantly diminished.
Thus, a process for manufacturing a combined pipe comprising separate manufacturing internal and external layers thereof, applying a polymer primer layer onto matched surfaces of the shells assemblage of shells and solidification of a primer layer is known U. A process for manufacturing a combined pipe comprising mounting a polyethylene parison tube on a mandrel, applying a sevilene layer thereon, winding a fiber glass material, followed by thermal treatment causing polymerization and cooling, is also known the RU patent No.
However, during embodiment of such process, expanding the polyethylene parison tube leads to the loss of the parison wall stability along the axis and to formation of cavities between the coil and the polyethylene parison that in polymerization of the fiberglass material results in non-uniformity of the pipe wall.
Furthermore, a process for manufacturing a combined pipe comprising mounting a polyolefin polyethylene parison tube on a mandrel, applying a sevilene layer thereon, winding a fiberglass material, subsequent thermal treatment causing polymerization and cooling, and removing the finished pipe is known; in embodiments of this process, the parison tube having internal diameter less than the mandrel diameter is taken, and the parison is mounted on the mandrel in interference fit, or first the parison tube is sized to a diameter greater than the mandrel diameter, and is mounted on the mandrel in a clearance fit, and thereafter, it is held until a tight joining is achieved RU patent No.
The last process is the closest one to the proposed invention by a combination of features. However, this process also has drawbacks to which a low adhesion of the sevilene layer to fiberglass should be attributed. The linear thermal expansion coefficient of polyolefines is by two orders higher than that of fiberglass. Therefore, in positive temperatures, the internal polyolefin layer being expanded exerts pressure on the external fiberglass layer.
In negative temperatures, the internal layer diameter diminishes, which leads to its tearing off from the external layer, and as a consequence, to stratification of the pipe construction. The indicated circumstances result in shortening exploitation terms and lowered reliability of pipes.
In addition, the known process is labor consuming in view of the need of parison mounting on a mandrel, thermal treatment of a pipe in an oven and removing it from the mandrel, the last operation being capable of causing disintegration of the pipe.
An object of the present invention was the development of a process for manufacturing an article, which would allow for producing an article, in particular a pipe, with an enhanced operating life in a wide range of temperatures in concurrent simplification of technological process. Technical result is achieved by that in the process for manufacturing a composite pipe comprising the steps of applying a sevilene layer on a tubular polyolefin parison which further forms an internal layer , winding an external layer of a composite polymer material which further forms a load-bearing layer with subsequent polymerization thereof, an additional step is introduced.
The additional step consists in that on the sevilene layer before winding the indicated composite polymer material, a fibrous structure is placed, which structure is capable of providing an efficient adhesion of a sealing layer covered by sevilene and the load-bearing layer, and the indicated fibrous structure is heated up to the temperature providing for melting the sevilene layer.
At the same time, for realizing the present invention, a fibrous structure is selected having a good adhesion to both the sevilene coating of the sealing layer and the composite polymer material forming the load-bearing layer. The disclosed articles can be manufactured according to the process of the present invention described above.
At the same time, various materials may be selected, as the external load-bearing layer, depending on the requirements to exploitation characteristics of the articles.
The additional layer of the fibrous structure is accordingly selected taking into consideration a selected material of the external layer. An internal sealing layer of the article according to the invention consists of polyolefines.
In particular, typical widely used representatives of polyolefines are polyethylene, polypropylene, polybutene, polyisobutylene, polymethylpentene. Polymers produced from substituted olefin monomers such as PVC polyvinyl chloride and ABS copolymer of acrylonitryl, butadiene and styrene can be also used. Polyethylene and polypropylene are the most preferable for use in the present invention.
For the objects of the present invention, any known brands of polyethylene and polypropylene can be in principle used. The required half-finished articles of tubular or another shape can be manufactured using standard molding processes well known in the art such as for example pressure molding, pressure-die casting, extrusion, molding on rotary machines as well as coil winding with a flat band of different profile, on a standard equipment.
Industrially manufactured half-finished articles can be also used. Mytischi, Moscow region. Sevilene used for applying a layer a coating directly to the internal sealing layer in the form of a half-finished article, is an ethylene and vinyl acetate copolymer, that is it belongs to polyolefines, wherein a portion of monomers are substituted olefins.
Such composition of sevilene causes an enhanced adhesion thereof to different materials, including a good adhesion of sevilene layer to the internal sealing layer according to the invention. Sevilene is widely manufactured in industry, in particular, five basic brands of sevilene differing by vinyl acetate content are manufactured in the RF according to TU An important field of sevilene use is utilization thereof for manufacturing hot-melt glues.
Such glues do not comprise solvents and represent solids at room temperature; while they are used in a molten form. Composite polymer materials used in the present invention for manufacturing the external load-bearing layer are materials consisting of two or more components the main of which are reinforcing fibers of at least one type and a matrix binding them. Such composite materials suitable for the purposes of the present invention are in principle well known in the art. Suitable materials possess high strength and rigidity characteristics while having a low density.
Different types of reinforcing fibers can be used in the composite polymeric materials according to the invention, in particular those described in the source indicated above. The main types of reinforcing fibers suitable according to the invention are glass fibers, basalt fibers, carbon fibers and aramide fibers. Continuous glass fibers are produced from quartz sand melt and other additives using conventional processes, in particular on the drawing machines for drawing of glass fibers from a bulk of glass melt through platinum dies.
Basalt fibers belong to the class of inorganic chemical fibers produced from mineral raw material. They are close to glass fibers by composition and characteristics, and they are also well known and wide-spread. Processes for producing them are also similar to those for producing glass fibers. Also known in the art are carbon graphite fibers formed by graphite crystalline structures of different ordering degree. Characteristics of different carbon fibers and processes for manufacturing the same can be found in the handbook mentioned above and publications indicated therein.
Aramide fibers are aromatic polyamide fibers. They are typically produced by the process of polycondensation of diamines and dicarboxylic acid halides at low temperatures, for example by polycondensation of terephthaloyl chloride and phenylene diamine the Kevlar fiber. A more detailed description of aramide fibers and processes for manufacturing the same can be found in the handbook mentioned above.
A binding matrix is another component necessary for producing composite polymer materials according to the invention. Different polymer resins mainly epoxy, polybutadiene, phenol formaldehyde and polyamide resins are used for producing the matrix. Different types of suitable binders are described in the sources of the prior art, in particular in the handbook mentioned above and in the publications recited therein.
In particular, in the composite polymer materials of the present invention, the resins ED, ED manufactured in the RF , Polypol, for example Polypol manufactured in Turkey , the resins manufactured by the Shell company the Netherlands etc.
During polymerization curing of binding resins, they bind reinforcing fibers with each other and form a monolith composite material. Resin hardening can be achieved when affected by temperature or polymerization catalysts. Particular polymerization processes, reagents used and operational modes of the processes are well known for example from the handbook mentioned above.
Composite materials based on different fibers and resins binding them possess high strength and rigidity characteristics while having a small density. At the same time, characteristics of the composite materials so produced depend on type and properties of the reinforcing fibers used in them. Thus, composite materials with carbon fibers carboplastics have high strength characteristics as well as an enhanced modulus of elasticity and impact strength as compared to composite materials with glass fibers fiberglass.
Composite materials with aramide fibers organoplastics in their turn have an enhanced strength in break strain, as well as the least density in a small break strain as well as the least density of all the composite materials under consideration. Advantage of basaltoplastic consists in a low cost of this type of reinforcing fibers while retaining acceptable physical-chemical characteristics of a load-bearing layer of basaltoplastic.
The fibrous structure used for manufacturing an additional layer that provides for improved adhesion between a sealing layer coated with sevilene and a load-bearing layer, is manufactured based on the fibers similar to those which are used as reinforcing ones in the composite polymer material of the load-bearing layer as is described above. In particular, such structures can be based on glass fibers, basalt fibers, carbon fibers or aramide fibers.
Accordingly, the brands of fibers suitable for using in the fiber structure of the present invention correspond to those described above for the reinforcing fibers of the composite polymer material. The fibers listed above are subjected to processing into rovings, spun threads, braids, fabrics and other textile half-finished articles according to the known techniques. The most suitable fiber structures for using according the present invention are twisted threads yarns , braids, meshes, tapes and fabrics.
In manufacturing articles according to the present invention, a sevilene layer is first applied on the internal sealing layer.
As was indicated above, a composition of sevilene determines a good binding of the sevilene layer with the internal polyolefin layer of the article according to the invention.
Then the fibrous structure of the invention is applied on the sevilene layer deposited in the form of a sheath. For example, such application can be performed by winding a thread, a tape, a fabric or other suitable structure.
Then said fiber structure is heated up to the temperature providing for melting the sevilene layer. Sevilene has a high adhesion to the used fiber and heating up to the temperature at which sevilene melting is achieved provides for gluing sevilene to the fiber and penetration of sevilene melt into the fiber structure, and, as a result, a good adhesion between the fibrous structure layer and sevilene.
Then the composite polymer material forming the load-bearing layer is applied for example wound , and polymerization thereof is carried out. Polymerization is effected by temperature thermal, or hot cure or by polymerization catalysts cold cure using the processes known in the art. The polymerized composite material binds well to an intermediate layer of the fibrous structure, since this one comprises fibers of the same type as those included into the composite material compositions as reinforcing fibers.
Preferably, fibers of the composite material and the fibrous structure are the fibers of the same type. An article, manufactured according to the present invention can first of all be pipes for conveying of liquid and gaseous media. Examples of preparing articles according to the invention are presented below that are intended for illustration of the invention and in no way should be construed as limiting the scope thereof. A tubular polyethylene parison was fixated at the ends in the actuating mechanisms of a coil winder.
A winding zone during rotation of the parison tube is supported by special lunettes, that prevent sagging of the parison during application of subsequent layers thereon, in particular in exerting pressure on it created by a tape strain in winding.
To the indicated parison tube forming the internal layer 1 of the pipe, the sevilene layer 2 was applied, then a glass fiber tope was bound layer 3. Following application of the glass fiber layer, a layer 4 of a composite fiberglass material in the form of threads, braids, tope or fabric was wound onto the produced parison.
Then the produced pipe was subjected to thermal treatment, the temperature and timing parameters of which were determined by curing conditions of a binder used in the fiberglass. The process similar to that described in Example 1 was used, but cold curing with using a polymerization catalyst was used for curing of the layer 4 in place of thermal treatment.
The process similar to that described in Example 1 was used, but a basalt plastic material was used for layer 4 in place of the fiberglass material. The process similar to that described in Example 1 was used, but a carbon plastic material was used for layer 4 in place of thermal treating the fiberglass material.
The process similar to that described in Example 1 was used, but an organoplastic material with aramide reinforcing fibers was used for layer 4 in place of the fiberglass material. Specimens of pipes 6 m long having diameter 0. In hydrostatic tests, the composite pipes were loaded by a hydrostatic operating pressure 3. Destruction was observed at Number of cycles was Then hydrostatic tests for destruction were carried out. Destructing pressure value was The number of such cycles was equal to In the pipe specimens subjected to the indicated tests, delamination was not observed.
In general, the results of the conducted tests show that the articles of the invention, in particular, pipes, are suitable for use in the housing maintenance and utilities infrastructure, in oil and gas pipelines, and as sewage system pipes.
Guidelines for environmental protection measures at chemical and waste storage facilities
A process for making a fibrous product using a binder based on a formaldehyde-containing resin and especially for making fiberglass insulation products, and to the fibrous products themselves, wherein the fibrous product has a backing sheet affixed thereto and the backing sheet is coated or impregnated with a formaldehyde scavenger composition, with the result that the fibrous products exhibit a reduced level of formaldehyde emission. The present invention relates to a method and a related product configuration for reducing formaldehyde emissions from articles prepared using formaldehyde-containing resins and relates especially to a method for reducing formaldehyde emissions from fiberglass products, such as fiberglass insulation. Formaldehyde-based resins or formaldehyde-containing resins, such as urea-formaldehyde UF resins, phenol-formaldehyde PF resins, including PF resins extended with urea PFU and melamine-formaldehyde MF resins find widespread use as adhesives and bonding agents for making a wide variety of products.
Is the filament strong enough to make a holster that is a durable as kydex? An all-in-one tool, the Filabot can grind, melt and extrude plastic filament. Anyone with an idea for Kydex that isn't a holster? Kydex was made as a replacement for the kickboards on the lower half of hospital walls. Despite its compact construction, the Urd 2.
US4363687A - Method for making large fiberglass structures - Google Patents
Use of plastic articles, in particular such as pipes, cylinders and various reservoirs for storage and conveying various liquids and gases is widely known in the art. However, said polyolefin materials have insufficiently high strength characteristics limiting their resistance to internal medium pressure and to external mechanic effects in particular those that could damage a pipe. So low strength allows for using polyethylene pipes under internal operational pressure of not more than 12 atm, at the same time, with a pipe wall thickness having to be about 0. Therefore, manufacturing such articles in the form of multilayer products with reinforcement is widely used in the art. At that, these reinforced articles pipes etc. As a rule, one or more intermediate layers providing for adhesion of the mentioned internal and external layers with formation of an integrated composite article structure can also be present. Since strength of a reinforcing material can by an order enhance the strength of polyolefines in particular polyethylene , then thickness of the sealing layer can be significantly diminished.
US4660738A - Leak-resistant fiberglass tank and method of making the same - Google Patents
It has been the largest market for Apple iPhones since Since the escalation of tariffs, though, China has stopped buying soybeans and lobsters , and Apple warned it would miss its expected Christmas holiday sales figures because of trade tensions. Skip to navigation Skip to content. From our Obsession Because China. Item HTS code Non-coniferous wood chips or wood pellets Sawdust, wood waste and debris, unbonded Other charcoal, whether or not agglomerated Softwood logs treated with preservatives Pinus koraiensis and Pinus sylvestris var.
So you think you can determine the exact commodity classification for a specific packaged arrangement of materials using your knowledge of the commodity classification definitions provided by NFPA 13, Standard for the Installation of Sprinkler Systems? Well, think again. The heat release rate associated with the burning of a specific arrangement of packaged materials is an extremely complex occurrence involving a multitude of influences, including but not limited to, the materials involved, including the stored materials as well as the packaging; the quantity of each of the materials; the relative position of the materials within the storage array to the advancing flame front; the physical configuration of the materials and available paths for air flow and fire spread within the array; and the list goes on. The commodity classification definitions in Chapter 5 of NFPA 13 provide a relatively simple set of criteria to establish the commodity classification, among one of eight different classifications, based on the materials included in the package load along with any pallet used for material handling.
All 2,493 US products targeted by China’s new 25% tariffs
Effective date : A portable ground matting system that has at least one fiberglass mat and at least one fastener. The at least one fiberglass mat has a fiberglass layer with at least one roving and a resin disposed on the roving. The fastener removably fastens the fiberglass mat to a ground surface so that the fiberglass mat mats the ground surface.
These products and methods are particularly useful in making low odor fiberglass products useful for insulation, including, but not limited to, insulation used in automobile headliners and room dividers. Cured, bonded fiberglass products produced using the binders according to this invention have low odor emissions because the binders have low free formaldehyde content and the cured products release very low levels of trimethylamine TMA. Use of fiberglass to produce insulation products, such as automobile headliners and room dividers, is known. In general, a binder is prepared from a phenol-formaldehyde resin, and this binder is applied to a fiberglass base material. The base material can later be shaped, sized as desired, and cured to maintain the base material in this final, desired shape. Many patents and other literature describe general fiberglass production processes.
US20070258767A1 - Fiberglass mats and assemblies thereof - Google Patents
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The Public Inspection page on FederalRegister. The Public Inspection page may also include documents scheduled for later issues, at the request of the issuing agency. The President of the United States manages the operations of the Executive branch of Government through Executive orders. The President of the United States communicates information on holidays, commemorations, special observances, trade, and policy through Proclamations. The President of the United States issues other types of documents, including but not limited to; memoranda, notices, determinations, letters, messages, and orders.
US2478186A - Storage battery separator - Google Patents
Article 12 of the Suffolk County Sanitary Code requires that toxic and hazardous material storage facilities be registered with the department of health services. Registration is a process of informing the county of the existence of storage tanks, both above and underground, drum storage areas or other storage vessels that contain chemical substances that can contaminate groundwater. Registration is a process of informing the County of the existence of storage tanks , both above and underground, drum storage areas or other storage vessels that contain chemicals substances that can contaminate groundwater. The purpose of registration is to have an inventory of hazardous materials storage sites throughout Suffolk County and to allow for the effective enforcement of the codes which regulate this storage.
FIELD OF THE INVENTION
No wonder, the port is booming in this sector and at Seair, we better understand how to benefit you from this welcome opportunity. We comprehend the fact that majority of import firms in are active in sourcing distinct ranges of products including raw materials, machinery and consumer goods etc. Hence, we provide comprehensive import data solutions for broad categories of import trading firms. Our Fiberglass sleeves import data solutions meet your actual import requirements in quality, volume, seasonality, and geography.
This application is a continuation-in-part of application Ser. This invention relates to fiberglass tanks and, in particular, fiberglass tanks used in underground applications for holding gasoline and other volatile substances. In recent years the trend has been to store gasoline and other fuels at service stations in underground tanks made of fiberglass. Many of the metal tanks that have been installed in past years have now begun to leak due to corrosion and are being replaced with fiberglass tanks because of the inherent resistance of the fiberglass to moisture-caused corrosion in underground applications. Recently, the Environmental Protection Agency has proposed the elimination of lead as an octane-boosting additive in gasoline.
US3459585A - Novel reaction product and use thereof as a glass fiber size - Google Patents
Меган с силой толкнула стенку секции, но та не поддавалась. С ужасом девушка увидела, что сумка застряла в двери. Она наклонилась и что было сил потянула ее, стараясь высвободить застрявшую часть. Затуманенные глаза Беккера не отрываясь смотрели на торчащий из двери кусок ткани. Он рванулся, вытянув вперед руки, к этой заветной щели, из которой торчал красный хвост сумки, и упал вперед, но его вытянутая рука не достала до .
Я сам позвоню этому… - Не беспокойтесь, - прошептала Сьюзан. - Танкадо мертв. Все замерли в изумлении.