Abstract: A method for producing a laminate (E) of a low air permeable resin/rubber composition comprising: laminating a laminate (D) of a low air permeable resin (A) layer having an air permeation coefficient of 1.0×10?12 cc·cm/cm2·sec·cmHg or less and an average thickness d (?m) of 0.05<d<5 and a thermoplastic resin composition (B) layer with a rubber composition (E) layer so as to form (B)/(A)/(E), followed by vulcanization, and peeling off only the thermoplastic resin composition (B) from the laminate, as well as the laminate thereof.

Abstract: A low permeability rubber laminate capable of preventing blisters formed when fabricating a pneumatic tire having a low permeability resin composition (A) layer having a air permeation coefficient, determined according to JIS K7126, of 0.5×10?12 cc·cm/cm2·sec·cmHg or less at 30° C., an average thickness d of 0.05 ?m<d<5 ?m and a Young's modulus E of 0.5 MPa<E<300 MPa at 160-200° C., laminated on one surface of a rubber composition (B) layer and superior in air pressure retention performance and durability and a pneumatic tire using the same as an inner liner.

Abstract: A molded product of a wholly aromatic liquid crystal polyester resin composition having a dielectric constant of 3.0 or less and a dielectric dissipation factor of 0.04 or less and is obtained by an injection molding of a composition comprising 90 to 45 percent by weight of the wholly aromatic liquid crystal polyester having a melting point of 320C or more, 10 to 40 percent by weight of an inorganic spherical hollow material having an aspect ratio of 2 or less, and 0 to 15 percent by weight of an inorganic filler having an aspect ratio of 4 or more. The molded product has dielectric properties suitable for information and telecommunications equipment, and is excellent in solder heat resistance, processability, and dimensional stability. The molded product is advantageous as a substrate material for use in information and telecommunications equipment such as a cellular mobile phone and as a fixing/holding member of a transmitter-receiver element.

Abstract: A container comprising a polyester composition with enhanced mechanical properties is provided. The polyester composition comprises a polyester and a creep control agent. In particular embodiments, the polyester composition comprises a polyester, a creep control agent, and a gas barrier additive. In particular embodiments, the creep control agents are molecules or polymers comprising dianhydrides, bis-lactams, bis-oxazoles, and epoxides.

Abstract: A container comprising a polyester composition with enhanced carbon dioxide and oxygen barrier properties is provided. The polyester composition comprises a polyester and a gas barrier enhancing additive.

Abstract: A photobioreactor system including a light source, a plurality of interconnected pipes, and a liquid slurry containing an algae disposed within the pipes. The pipes are formed from a translucent polyvinyl chloride material that allows light having a plurality of wavelengths emitted from the light source that stimulate growth of the algae to pass through the material and is resistant to light having a wavelengths emitted from the light source that degrade the material.

Abstract: Disclosed is a laminar shaped article comprising a heterogeneous blend of (a) a composition comprising a vinyl halide or vinylidene halide polymer and optionally an ethylene copolymer containing carboxyl and/or carbon monoxide moieties, and (b) a polyolefin functionalized with a comonomer selected from the group consisting of maleic anhydride, maleic acid diesters, maleic acid monoesters, itaconic anhydride, itaconic acid diesters, itaconic acid monoesters, fumaric acid diesters, fumaric acid monoesters, or combinations thereof as a compatibilizer; and (c) a polyamide wherein the polyamide is present in the vinyl halide or vinylidene halide polymer as a multitude of overlapping layers.

Abstract: Heat-shrinkable multilayer films having a surface layer based on at least one olefinic polymer and/or copolymer, a layer based on a mixture of an ionomer having a maximum MFI of 4 dg/min and an ionomer having an MFI>4 dg/min, a barrier layer based on polyvinylidene chloride or a vinylidene chloride polymer, a layer based on the ionomer mixture or an olefinic copolymer, and a sealing layer of at least one polyolefin or olefinic copolymer.

Abstract: In accordance with one aspect of the invention, a material, such as a plastic film, is used to separate independent food elements. The independent food elements and the separation material are packaged together using a unifying outer package. At a point in time when the customer decides to eat the food, the outer package is opened and the film that separates the different food elements is removed, either manually or automatically. This marks the first point in time that the separate elements come into contact with each other. Therefore, the food product is maintained at the highest level of integrity until the time of usage by the customer. Methods and a machine for layering the contents of the packages so as to form a completed assembly for the packaged elements is also described.

Abstract: The present invention relates to polyamide/polyolefin blends containing carbon nanotubes. The invention also relates to structures comprising at least one layer of these blends and optionally at least one layer of another material. These structures may be in the form of bottles, tanks, containers, hoses, pipes and vessels of any kind. These structures may be manufactured using the standard techniques for thermoplastics, such as injection moulding, extrusion-blow moulding and coextrusion.

Abstract: To provide a resin composition comprising an ethylene-vinyl alcohol copolymer (A) having an ethylene content of from 15 to 65 mol % and a degree of saponification of 95 mol % or more, a phosphoric acid salt (B) which can form a hydrate, and a dispersing agent (C), wherein the dispersing agent (C) comprises at least one species selected from the group consisting of aliphatic acid salts, glycerol aliphatic acid esters and aliphatic acid amides, the resin composition comprises (A) and (B) in amounts of from 50 to 99 parts by weight and from 1 to 50 parts by weight, respectively, based on 100 parts by weight of (A) and (B) in total, and the resin composition comprises (C) in an amount of from 1 to 20 parts by weight based on 100 parts by weight of (B). This resin composition excels in gas barrier property and also in moisture resistance at high temperatures and high humidities. Therefore, it is suitable for food packaging containers to be retorted.

Abstract: A plastic formed article comprising a plastic substrate and a vapor deposited film formed on the surface of the plastic substrate by a plasma CVD method, wherein the vapor deposited film includes an organometal vapor deposited layer having an element ratio C/Si of 2.5 to 13 and an element ratio O/M of not larger than 0.5, and a hydrocarbon vapor deposited layer; and the hydrocarbon vapor deposited layer has a thickness in a range of 40 to 180 nm, exhibits peaks stemming from CH, CH2 and CH3 over a region of wave numbers of 3200 to 2600 cm?1 as measured by FT-IR, and has a CH2 ratio of not larger than 35% and a CH3 ratio of not less than 40%. A film is deposited on a plastic formed article without deteriorated by oxidation, without thermally deformed or without thermally deteriorated not only when PET or polyolefin is used but also when polylactic acid is used as the plastic substrate.

Abstract: A barrier film for packaging food or beverage comprises a polymer base film, and a barrier layer comprising an inorganic oxide applied onto the base film by vapour deposition. The inorganic oxide layer is further coated with a healing layer of a crosslinked organopolysiloxane which is covalently bound to the inorganic layer. Other aspects disclosed here involve a multilayer packaging laminate comprised of the barrier film, and a method of manufacturing the barrier film and packaging containers manufactured from the film.

Abstract: The instant invention concerns a composition comprising a base polymer, at least one compound of the formula E-(L-E)x wherein: E is and L is a linking group; and at least one transition metal in a positive oxidation state. The invention also concerns packages containing walls comprising such compositions, methods of forming such packages, and methods of packaging an oxygen-sensitive item within such a package.

Abstract: The invention relates to a blow molding having capacity of at least 250 ml, its shell being composed of polystyrene and being produced via injection stretch blow molding. The invention moreover relates to the process for production of this blow molding and to the use of the blow moldings.

Abstract: A multilayer, heat-shrinkable film contains at least one semi-crystalline polyamide selected from the group consisting of polyamide 6, polyamide 66, polyamide 6/66, and polyamide 6/12. The film may have a total semi-crystalline polyamide content of at least 35 volume percent, based on total film volume, and a total free shrink at 185° F. of at least 35 percent. The film may have an FTIR Transmission Absorbance A1199/A1170 ratio of up to 1.65. The film may be a retortable film, capable of being used in a process for preparing a retorted packaged product.

Abstract: A coating composition comprising a silylated polyvinyl alcohol, a colloidal silica and a water-dispersible or water-soluble aminoplast resin in an aqueous vehicle may be coated on a substrate with a layer of an inorganic compound to form a gas barrier lamella.

Abstract: An oxygen absorbing composition of the present invention comprises a compound with a molecular weight of less than 10000 and an oxygen absorption accelerator. The compound includes two or more ring structures that are of at least one type, each of which has an ether bond. The oxygen absorbing composition further may contain a gas barrier resin. A laminate of the present invention comprises a layer formed of an oxygen absorbing composition of the present invention.

Abstract: Disclosed is a blended composition comprising a humidity-dependent composition having a ratio of wet cup permeance to dry cup permeance greater than 10 and a crystallizable polymer sufficiently permeable to oxygen, carbon dioxide and water vapor, exhibiting an increase in permeability to at least one of oxygen and carbon dioxide by a factor of at least 2.5 over a temperature range of 10° C. between 0° C. and 40° C. Also disclosed are packaging materials comprising the blended composition and methods for storing respiring materials using the packaging materials.

Abstract: A formable, porous chemiluminescent reactant composition, device therefore, and a process for production thereof is disclosed. The fluidizable solid admixture of the instant invention may be cured to a more or less rigid form with or without the use of a mold. The cured solid is useful as a chemiluminescent reactant component and is useful in a variety of environments.

Abstract: A multi-layer biaxially stretched blow bottle having a 3-layer structure of PET/nylon MXD6/PET or a 5-layer structure of PET/nylon MXD6/PET/nylon MXD6/PET, wherein the oxygen gas transmission coefficient of the nylon MXD6 layer is at most 6.0×10?14 cm3·cm/cm2·sec·cmHg as measured under conditions of a temperature of 23° C. and a relative humidity of 80%, and a production process of the bottle by biaxial stretch blow molding at a low stretching temperature and high draw ratios.

Abstract: The invention includes a copolymer of vinylidene chloride with at least one monounsaturated comonomer and at least one branching monomer in an amount sufficient to increase molecular weight over that of a polymer prepared using the same process and same monomers in the same relative amounts except without the branching monomer, but preferably the branching monomer is present in a quantity not sufficient to result in measurable crosslinking as determined by solubility in tetrahydrofuran at up to 83° C. The invention includes a process for making the polymer and processes for forming the copolymer or compositions thereof as well as articles comprising the copolymer and compositions thereof. The copolymer exhibits improved bubble stability and is particularly useful for processes in which the copolymer is at least partially oriented in formation such as blow molding, formation of monofilament fiber and film blowing.

Abstract: Embodiments of the invention include articles comprising a diamond like carbon coating or doped diamond like carbon coating on one or more surfaces of a plastic substrate or a plastic enclosure. Embodiments of the DLC or doped DLC coatings reduce the gas permeation of the coated plastic or thermoplastic to hydrogen or helium compared to the permeability of the plastic alone. The DLC or doped DLC coatings coating provides a surface resistivity of from about 107 to about 1014 ohm/square and have a transmittance that range from about 0% to about 70% less than the transmittance of the underlying plastic substrate in the range of about 300 nm to about 1100 nm. The DLC coated plastic can be used in environmental enclosures for protecting environmentally sensitive substrates such as semiconductor wafers and reticles.

Abstract: An improved two-piece container seal suitable for sealing a container having a removable closure and for lining the closure comprises a flexible sealant sheet and a flexible liner sheet bonded thereto. The sealant sheet and liner sheet are of the same size and shape. The sealant sheet has a sealing surface and a first thermoplastic surface, and the liner sheet has an outer surface and a second thermoplastic surface. The first and second thermoplastic surfaces are in opposed, congruent contact with each other, and the first thermoplastic surface is ultrasonically welded to the second thermoplastic surface by an array of spaced, frangible ultrasonic welds, forming an adhesive-free interface therebetween. A method of manufacturing a two-piece container seal and a sealed container comprising a two-piece container seal are also described.

Abstract: A powder of a barrier material (B) is after, having been melted, applied to a substrate of a of a polyolefin (A) according to flame spray coating process to give a shaped article, in which the barrier material (B) firmly adheres to the polyolefin (A) even when the surface of the substrate is not subjected to primer treatment. The shaped article is favorable to components to fuel containers, fuel tanks for automobiles, fuel pipes, etc.

Abstract: The method comprises an automated technique for making and inserting flexible laminate film barrier liners into the shoulder/nozzles of product tube packaging. The shoulder/nozzles are made and oriented with the shoulder opening to be facing the laminate film. The film is fed to a station that forms the nozzle aperture, die cuts the laminate film to fit into the shoulder of the shoulder/nozzle, and inserts this laminate film into the shoulder/nozzle. The laminate film can be heat bonded to the shoulder nozzle at this station or in a subsequent sealing station. After the shoulder/nozzle leaves the station that forms and inserts the laminate film into the shoulder/nozzle there can be a detection station to determine if the laminate film is properly aligned in the shoulder/nozzle. There also can be a detection station after a subsequent sealing station. Shoulder/nozzles with sealed laminate film liner are then sent to tube making.

Abstract: A gas-barrier container having at least one gas-barrier layer, characterized in that the gas-barrier layer is made of a cured epoxy resin obtained by curing an epoxy resin composition mainly comprising an epoxy rein and a curing agent for epoxy resin and that the cured epoxy resin contains the skeletal structure of formula (1) in an amount of 30 wt % or above. The gas-barrier container exhibits high gas-barrier properties and a low environmental load by virtue of the use of a non-halogen gas-barrier material and is advantageous in economical efficiency and workability in production steps and excellent in interlaminar strength, gas-barrier properties under high humidity, impact resistance, and resistance to retorting, thus being usable as container for foods or drinks, packing material for drugs, and so on.

Abstract: Described is a closure element for a container. The closure elements has a sealing element which contains a thermoplastic polymer, and an effective absorbing amount of an unmodified cyclodextrin material. The unmodified cyclodextrin material may be an ?-cyclodextrin, ?-cyclodextrin, ?-cyclodextrin, and mixtures thereof. The sealing element can act as a barrier with respect to permeants, such as aromatic substances, trichloroanisole, aldehydes or ketones and/or impurities from the polymer.

Abstract: Multilayer film webs having a layer of an oxygen-permeable composition that is a blend of i) an organic acid or organic acid salt, ii) a copolymer of a) ethylene, b) an C3 to C8 ?,?-ethylenically unsaturated carboxylic acid, and optionally c) an alkyl acrylate or alkyl methacrylate comonomer, where greater than 70% of the total acid moieties of (i) plus (ii) are neutralized to the corresponding metal salts, and iii) at least one additional ethylene-containing polymer selected from the group consisting of ethylene homopolymers and ethylene copolymers other than ethylene acid copolymers and ionomers are used to form packaging materials in a process in which a packaging structure is provided that includes the multilayer film web, a vacuum is applied to the packaging structure, and the perimeters of the film web layers are heat sealed.

Abstract: A laminated resin tube is formed mainly of inexpensive materials and has improved low-permeable ability. The laminated resin tube has a plurality of laminated component resin tubes made of thermoplastic resins. At least one of the plurality of component resin tubes is a first low-permeable barrier tube made of polyamide 9T, and the rest of the component resin tubes include a resin tube made of polyamide 6 or polyamide 66.

Abstract: Films comprising a liquid-absorbant layer and an impermeable layer are provided. Processes for manufacturing these films is also provided. The films are suitable for preparation of tubular casings and shrinkbags, in particular, casings for smoked foodstuffs. Also described are foodstuffs processed in the tubular casings.

Abstract: The present invention relates to a coinjection stretch blow-molded container having a layer of thermoplastic polyester (A) that has specific properties and a layer of an ethylene-vinyl alcohol copolymer resin composition (B) that includes specific minor components and has specific properties, and the thickness ratio of the layer of thermoplastic polyester (A) to the layer of an ethylene-vinyl alcohol copolymer resin composition (B) (layer (A)/layer (B)) in the container body is in the specific range. The coinjection stretch blow molded container of the present invention has excellent gas barrier properties against, for example: oxygen and carbon dioxide; moisture-proofing properties; flavor-retention properties; flavor-barrier properties; and impact delamination resistance. In addition, the coinjection stretch blow molded container of the present invention has a good appearance and can be stably produced in long-run working lines.

Abstract: The invention describes a flexible tubular article for transport of volatile hydrocarbons comprising: (a) an inner layer of a polyvinylidene difluoride (PVDF) polymer or a polyvinylidene difluoride copolymer; (b) an intermediate thermoplastic polyurethane (TPU) layer extruded in tubular form over the inner PVDF layer, and (c) a polyvinyl chloride polymer extruded in tubular form over the outside surface of the intermediate layer and being coextensive therewith. The tubular articles of the invention have a maximum permeation rating of 15 g/m2/day under SAE J1737 test conditions.

Abstract: [Problems] To provide an oxygen-absorbing barrier resin composition which has excellent oxygen-barrier properties even under high-humidity conditions and can give a multilayer structure having excellent peel strength; an oxygen-absorbing barrier film comprising the oxygen-absorbing barrier resin composition; a multilayer structure including a layer comprising the oxygen-absorbing barrier film; and a packing container comprising the multilayer structure. [Means for Solving Problems] The oxygen-absorbing barrier resin composition comprises a resin (A) having an oxygen permeability of at most 100 cc/m2·day·atm and a resin (B) having an oxygen absorption rate of at least 0.001 cc/cm2·day, wherein the resin (B) is dispersed in the matrix of the resin (A) and the resin (B) is in the form of rods in which the average of the maximum diameters of cross sections perpendicular to the lengthwise direction is at most 1.0 ?m.

Abstract: Packaging is provided having one or more walls formed from a material comprising two or more layers of polyvinyl alcohol which have been co-extruded or co-moulded together during manufacture. The polyvinyl alcohol used in at least two of the layers differs in type, form, thickness and/or one or more characteristics.

Abstract: Gas barrier layers and composites contain a low gel sheet produced from a composition containing a thermoplastic polyurethane (TPU), a hydroxyl functional copolymer, and a gel reducing additive. The gel reducing additive has functional groups that can react with isocyanate groups to reduce gel formation during the processing of blends of urethane containing polymers and hydroxyl functional polymers. Multilayer composites containing the low gel sheets can be made into inflatable membranes for containing an inflationary gas. In a particularly preferred embodiment, the membranes are used as bladders of cushioning devices in the soles of shoes, particularly athletic shoes.

Abstract: The present invention relates to the use of polypropylene containers for the packaging, storage and preservation of foods, with the containers having wall thicknesses of at least 0.4 mm and the polypropylene preferably being a transparent propylene homopolymer or propylene copolymer which has a haze value of ?40%, based on a layer thickness of the polypropylene of 1 mm and measured on injection-molded test specimens, and has a tensile modulus of elasticity of ?700 MPa, in the case of a homopolymer preferably ?1500 MPa, and a Charpy notched impact toughness at 0° C. of ?3 kJ/m2 and at a layer thickness of 100 ?m has an oxygen permeability of ?1000 cm/3/m2.d.bar, and, likewise at a layer thickness of 100 ?m, has a permeability to water vapor of ?1 g/m2. In addition, the invention relates to transparent polypropylene containers which can be closed so as to be airtight and watertight and are suitable for the preservation of foods.

Abstract: A bio-based polyethylene terephthalate polymer comprising from about 25 to about 75 weight percent of a terephthalate component and from about 20 to about 50 weight percent of a diol component, wherein at least about one weight percent of at least one of the terephthalate and/or the diol component is derived from at least one bio-based material. A method of producing a bio-based polyethylene terephthalate polymer comprising obtaining a diol component comprising ethylene glycol, obtaining a terephthalate component comprising terephthalic acid, wherein at least one of the diol component and/or the diol component is derived from at least one bio-based material, and reacting the diol component and the terephthalate component to form a bio-based polyethylene terephthalate polymer comprising from about 25 to about 75 weight percent of the terephthalate component and from about 20 to about 50 weight percent of the diol component.

Abstract: A polyamide resin composition contains a resin component containing at least a polyamide (X) and a fatty acid metallic salt having from 10 to 50 carbon atoms, and contains arbitrarily an additive (A) and/or an additive (B). The polyamide (X) is obtained through melt polycondensation of a diamine component containing 70% by mol or more of m-xylylenediamine and a dicarboxylic acid component containing 70% by mol or more of an ?,?-linear aliphatic dicarboxylic acid. The additive (A) is at least one compound selected from the group consisting of a diamide compound obtained from a fatty acid having from 8 to 30 carbon atoms and a diamine having from 2 to 10 carbon atoms, a diester compound obtained from a fatty acid having from 8 to 30 carbon atoms and a diol having from 2 to 10 carbon atoms, and a surfactant, and the additive (B) is at least one compound selected from the group consisting of a metallic hydroxide, a metallic acetate salt, a metallic alkoxide, a metallic carbonate salt and a fatty acid.

Abstract: Coated articles that can include one or more coating layers, and methods of making thereof, are disclosed herein. One or more coating layers can include a UV-curable material and a crosslinking initiator.

Abstract: A pipe includes an outer layer composed of a molding composition which includes at least 40% by weight of a polyamide whose monomer units contain an average of at least 8 carbon atoms, and a layer composed of a polypropylene molding composition. An outer diameter of the pipe is in a range from 6 to 20 mm, a wall thickness of the pipe is in a range from 1.0 to 2.0 mm, and a thickness of the polypropylene layer is from 25 to 75% of the wall thickness. The pipe can be used as an air-brake line that can be produced at low cost, has high bursting strength, and has good low-temperature impact resistance.

Abstract: An article of footwear including an upper and a sole, which has an outsole for directly contacting a ground surface, and at least one element compression molded with the outsole. The at least one element is formed from a first material including at least 45% ethylene vinyl acetate, approximately 30% polyene elastomer, and approximately 20% synthetic rubber. A second material of the outsole is compatible for compression molding with the at least one element, and is less hard and less dense than the at least one element.

Abstract: A preform having a low IV and including a PET Copolymer including a diol component having repeat units from ethylene glycol and diethylene glycol and a diacid component having repeat units from terephthalic acid and naphthalenedicarboxylic acid. The total amount of diethylene glycol and naphthalenedicarboxylic acid is present in the poly(ethylene terephthalate) copolymer in an amount from about 0.1 mole percent to less than 2.8 mole percent. The preform is useful in making containers and corresponding methods are disclosed.

Abstract: Copolymer comprising at least 50 mol percent up to 85 mol percent tetrafluoroethylene (TFE), from 10-35 mol percent 3,3,3-trifluoropropylene (TFP), and from 0.5-15 mol percent of a fluorinated ethylenically unsaturated monomer of the formula RCF?CR2 wherein R, which can be the same or different, is selected from the group consisting of H, F, Cl, Br, I, alkyl of from 1 to 8 carbon atoms, perfluoroalkyl of from 1 to 8 carbon atoms, and perfluoroalkylether of from 1 to 8 carbon atoms are useful as process aids and for fuel barrier applications in flexible hose constructions.

Abstract: A packing bag structure formed of inner and outer bag members made of synthetic resin inner and outer films having different moisture permeabilities enables easy-to-dry moist foods or other perishable products to be packed in a suitable state and stored in a non-soggy and untarnished condition. The inner film has moisture permeability of 9 to 200 g/(m2·24 h), preferably 20 to 30 g/(m2·24 h), and the outer film has moisture permeability of 4 to 15 g/(m2·24 h), preferably 7 to 10 g/(m2·24 h). The packing bag is produced by folding a long film sheet formed of the inner and outer films into two, having an article such as food placed between the twofold film sheet, thermally sealing the film sheet by using an end sealer and cutting off the packed and sealed portion.

Abstract: A packaging container having a chromatic color ink layer which is formed in a light-blocking printed layer (3), wherein a chromatic color ink applied to the chromatic color ink layer contains a white color family pigment and a black color family pigment and the contents of said black color family pigment amount to 3 to 5 parts by weight per 100 parts by weight of the total amount of the pigments in the chromatic color ink. The packaging container retains appropriate opacifying properties and light-blocking properties and provides no metallic residue when incinerated.

Abstract: A fluid-filled bladder with a reinforcing structure and a method of manufacturing the bladder and reinforcing structure are disclosed. In general, the reinforcing structure extends around the bladder, and the reinforcing structure is bonded to an exterior of the bladder. In some embodiments, the reinforcing structure is recessed into the bladder and extends along side surfaces of the bladder and between upper and lower surfaces of bladder. In manufacturing, the reinforcing structure may be located within a mold, and the polymer material forming the bladder may be bonded to the reinforcing structure during the molding process.

Abstract: A flexible hose for transporting food liquids, particularly for irrigation or the like, comprising at least one outer protective layer (2) of a first flexible polymer material and at least one inner layer (3) in direct contact with the fluid to be transported, made of a second flexible polyvinyl chloride (PVC)-containing polymer material. The second polymer material includes a plasticizer agent having as low a migration level as to maintain the flexibility of said second polymer material substantially unaltered with time. The plasticizer agent is selected from the group comprising non-phthalate additives, so that it can be non-toxic and non-polluting for the food products to be transported.

Abstract: A high HDT CPVC compound that is optically clear is disclosed. The choice of CPVC resin, the use of external lubricants, and other optional ingredients achieves a threshold of optical clarity for the compound to be used to make optically clear articles via extrusion or molding. An optically clear CPVC industrial pipe is particularly useful for monitoring of fluid flow.

Abstract: An extruded seal member having a corrugated axial surface exhibiting alternating peaks and valleys extending longitudinally along the axial surface of the seal member; a method for manufacturing the seal member which comprises extruding a tubular structure having a corrugated axial surface, crosslinking the extrude tubular structure, cutting the tubular structure to provide a plurality of uniform seal members and recovering the seal members; and a method of using such multilayer seal members, are described.