Abstract: A thin, multilayered rubber article and method of making it, having greater resistance to the leakage of fluids therethrough, despite repeated stretching and relaxing of the article within a wide range of movement. The article exhibits a "self-healing" property to impede fluid leakage despite preexisting, or later formed, pinholes or other small openings through the layers. In the method, the base layer is initially stretched before applying an intimately adhered, thinner overlayer of elastomeric material, thereby to provide a stressed interface between the two adhered layers. Additional overlayers can be applied.

Abstract: The degree and reproducibility of cohesive bonding between gum-type organosiloxane elastomers cured by a platinum-catalyzed hydrosilation reaction and organic polymer substrates are increased when the composition used to prepare the elastomer contains an amount of silanol-functional polydiorganosiloxane sufficient to impart an activity number of at least 40 to the polydiorganosiloxane gums present in said composition.

Abstract: A process for producing by simultaneous lamination a polymer/metal/polymer laminate, which process comprises(i) simultaneously laminating to each of the major surfaces of a metal sheet a composite polyester film (A) comprising an inner layer (A1) of a substantially non-crystalline linear polyester having a softening point (Ts-A1) below 200.degree. C. and a melting point (Tm-A1) above 150.degree. C. and below 250.degree. C. and an outer layer (A2) of a biaxially oriented linear polyester having a crystallinity greater than 30% and having a melting point (Tm-A2) above 250.degree. C., the metal sheet having been heated to a temperature T.sub.

Abstract: The present invention provides a process for hermetically sealing a container having an open top. The process of this invention employs a novel cap liner comprising a backing layer consisting of thermoplastic material, a sealing layer and a bond layer between the backing layer and the sealing layer. The process comprises the steps of: providing a cap adapted to engage the open top of a container; providing a novel cap liner of this invention; inserting the cap liner into the cap; securing the cap to the container such that the sealing layer of the cap liner contacts the container and extends across the open top of the container; and bonding the sealing layer of the cap liner to the container to produce a hermetically sealed container.

Abstract: A multilayer film having as one surface layer thereof a support layer containing a thermoplastic resin able to withstand temperatures up to 200 degrees C. without softening and the other surface layer an adhesive layer containing a thermoplastic resin having a melting point ranging from about 100 to 200 degrees C. Optionally, a tie layer may be employed between the support layer and the adhesive layer. The multilayer film is useful as a protective carrier sheet for a cladding metal foil used in the production of printed circuit boards. The carrier sheet provides temporary, peelable surface protection for the cladding metal foil preventing contamination and physical damage to the foil both before and during printed circuit board formation. Adhesion of the carrier sheet to the cladding metal foil, measured using a 180 degree peel test is less than 0.4 pounds/in-width and greater than 0.005 pounds/in-width, and preferably less than 0.1 pounds/in-width and greater than 0.01 pounds/in-width.

Abstract: A patterned metallized film comprises a transparent or translucent polymeric film coated on one side with a thin coating of metal, with the metal coating and the polymeric film being bonded to each other. The metal coating has a multiplicity of fractures of different sizes distributed throughout the coating in a prescribed pattern so that the reflection of light by the fractured metal coating produces a three-dimensional illusion of the pattern when viewed through said polymeric film. The film may also include a layer of adhesive on the opposite side of the metal coating from the polymeric film, and a paper backing sheet on the opposite side of the adhesive layer from the metal coating. The fractures are preferably formed by heating the metallized film non-uniformly so that selected areas of the film expand and soften at a rate different from the rate at which other areas of said film expand and soften.

Abstract: An abrasion resistant low temperature air fired thick film ink composition is disclosed. The composition includes a glass matrix material having a softening point below about 700.degree. C., a particulate conductive material and a particulate reinforcing material.

Abstract: Novel orientable single and multilayer thermoplastic flexible films utilizing blends comprising an amorphous nylon copolymer such as nylon 6I/6T and a nylon copolyamide having a melting point of at least about 145.degree. C. having improved processability, shrinkage and optical properties.

Abstract: This invention provides an aromatic polyamide having excellent gas-barrier property as well as excellent melt-moldability, thermal stability, mechanical strength and transparency. Because of its excellent gas-barrier property, this aromatic polyamide can be used, for example, as a material for containers, and protects articles held in the containers from gases.

Abstract: Improved non-stick coating systems can be applied to untreated smooth substrate with a polyether sulfone undercoat 0.1-5.0 microns thick preferably containing colloidal silica and surfactant.

Abstract: A composite structure, e.g. a plastic-backed enameled carbon steel or stainless steel finish product has high impact, delamination and thermal shock resistance. The composite structure is formed from a carbon steel or stainless steel shell having a finish side which may have a polished, ceramic, enameled, polymeric or metallic coating. On the other, non-finish side of the shell a layer of reinforced plastic is bonded directly to the steel or stainless steel shell using silane to form a laminated structure. The finish layer is resistant to deformation and delamination when subjected to relatively high impact applied directly to the finish or to the plastic layer surface, or when the composite structure is subjected to a sudden temperature change.

Abstract: Sheet material including a cellulose acetate temporary support carrying thereon a continuous strippable layer. The strippable layer is a non-photosensitive layer containing a coverage of at most 20 g/m.sup.2 gelatin hardened to a degree corresponding to the addition of at least 0.001 g of formaldehyde per g of gelatin. Transfer of the strippable layer from the temporary support onto an image material having e.g. an imaged hydrophilic colloid layer or relief pattern given improved gloss control and optical dot gain control for such image material.

Abstract: A polyester film suitable for a base of high density magnetic recording medium containing barium ferrite as a magnetic material characterized in that the centerline average roughness (Ra) is not more than 0.025 .mu.m and the F.sub.5 value in the longitudinal direction is not less than 14 kg/mm.sup.2 is disclosed wherein the polyester film exhibit excellent better durability when used with barium ferrite as a magnetic material.

Abstract: A laminated structure comprising a copper metal substrate adhered to a polyimide polymer by the use of first and second adhesive resin layers.

Abstract: Laminate displaying improved blunt notch behavior, so that it is suitable for use as a construction material in aviation and cosmonautics. It comprises an intermediate layer of synthetic material reinforced by continuous glass filaments having a modulus of elasticity of at least 80 GPa. The glass filaments contain at least 58-69% by weight of SiO.sub.2, 18-29% by weight of Al.sub.2 O.sub.3, and MgO. Preferably, they have a tenacity of at least 4 GPa, and an elongation at break of at least 4%. The synthetic material may be an amorphous thermoplastic resin having a Tg>140.degree. C. such as, e.g., polarylates, poly(ether)sulfones, polyetherimides or poly-p-phenylene ethers, or a semi- or para-crystalline resin having a crystalline melting point>170.degree. C., such as poly-phenylene sulfides, polyetherketones or liquid crystal polymers.

Abstract: The present invention provides single body and composite sliding members comprising a resin composition containing 30-98% by weight of an aromatic polyether ketone, 1-35% by weight of polytetrafluoroethylene and 1-35% by weight of a metal fluoride, and single and composite sliding members comprising a resin composition containing 30-97% by weight of an aromatic polyether ketone, 1-35% by weight of polytetrafluoroethylene, 1-35% by weight of a metal fluoride and 1-20% by weight of potassium titanate fiber. These sliding members are remarkably improved in low frictional properties and wear resistance in comparison with the conventional products and therefore very useful.

Abstract: The invention relates to articles with a non-stick coating. It relates in particular to an article consisting of a substrate whose surface has -OH groups, and of at least one non-stick polymer layer, said article having also, applied between said substrate and said non-stick polymer layer, a layer which is obtained by making an appropriate bifunctional organosilane react with a polyamic-acid precursor of polyamide-imide and with -OH groups of the substrate surface, then drying and converting said polyamic-acid into a polyamide-imide by heating at an appropriately high temperature. The invention also provides processes and compositions to make non-stick glass and glass-ceramic cookware having clear, vivid, brilliant, attractive colors and stable and durable decorating patterns. Said coloring is achieved by precoating the substrate surface with a polyimide resin containing colored pigment, and preferably, an organosilane.

Abstract: A metallized film has a substrate layer of a synthetic polymeric material, having on at least one surface thereof, an adherent layer comprising a copolymer containing styrene and/or a styrene derivative, and at least one ethylenically unsaturated comonomer copolymerizable therewith, the copolymer comprising at least one free functional acid group. A metallic layer is on the surface of the at least one adherent layer, remote from the substrate.

Abstract: A fuser member for applying heat and pressure to fuse toner to a recording medium which does not require use of mercapto functional release agents has a surface of a fluoroelastomer material including vinylidene fluoride and at least about 23.4 mole percent hexafluoropropylene. High hexafluoropropylene molar content at least as high as about 30.0 mole percent and preferably 38.1 mole percent may be utilized. When the fluoroelastomer material is a copolymer of vinylidene fluoride and hexafluoropropylene, the fluorine content is between about 69-71%. Such fuser members may be utilized alone or with polysiloxane release agents which do not include mercapto functional compounds.

Abstract: The invention is an article formed of a metal substrate with a protective, weather-resistant, transparent film overlying the surface of the metal substrate. The film is formed of a polymer that contains vinylidene fluoride and which imparts weather resistant properties to the workpiece. An adhesive layer is positioned between the protective film and the metal substrate and bonds the protective film to the metal substrate. The adhesive layer comprises an acrylic resin adhesive and a zircoaluminate adhesion promoter which enhances the bond between metals such as aluminum and the vinylidene fluoride containing polymer.