Abstract:
The present invention relates to a film for a tire inner liner including a base film layer including a copolymer or a mixture of a polyamide-based resin and a polyether-based resin, and an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive, and having low shrinkage rate when elongated at a high temperature and then cooled to room temperature, and a method for manufacturing the same.
Abstract:
A polyurethane or polyurea coating for use in protecting a leading edge substrate on an airfoil against liquid or solid particle erosion, the composition made from an isocyanate-terminated prepolymer and curing agents, such as polyaspartic esters, aldimines and ketimines with optional flatting agent for matte coatings.
Abstract:
A method of forming a matte topcoat for rotor blades, propellers and other articles used to protect a leading edge substrate against high speed liquid or solid particle erosion including premixing a concentrate of flatting agent dispersed in a solvent, reducing the moisture content using molecular sieves, blending the concentrate of flatting agent into a polyurethane or polyurea composition and forming a protective coating comprising a matte layer on the leading edge substrate.
Abstract:
Polyetherpolyamide elastomer showing a low water absorption, a high stress relaxation, and a high elastic recovery percentage of elongation is obtainable by polymerizing an aminocarboxylic acid compound and/or a lactam compound, a triblock polyetherdiamine compound having the following formula, and a dicarboxylic acid compound: [x is a value of 1 to 20, y is a value of 4 to 50, z is a value of 1 to 20].
Abstract:
A combination of a semi-soluble methacrylic polymer and a sulfonated naphthalene condensation product, optionally with a semi-soluble or insoluble ethyl methacrylate polymer of high molecular weight, provides improved resistance to staining by acid colorants of fibrous polyamide substrate.
Abstract:
A gas diffusion electrode made of carbon, a process for producing an electrode and a carbonizable composite are provided. Thin, flat, porous gas diffusion electrodes made of carbon, which have a smooth surface and in which the porosity can be regulated at will, are obtained by pyrolysis of a composite of an organic polymer having a spatial globular structure (SGS polymer) and a reinforcing skeleton formed at least in part of organic material.
Abstract:
A thermoplastic resin integrated structure, which comprises a structural member (A) molded from a resin composition (a) comprising 5-80 wt. % of polyacetal resin (a-1) and 20-95 wt. % of at least one resin (a-2) selected from the group consisting of polyolefin resin, olefinic elastomer and hydrogenated butadienic elastomer, and a structural member (B) molded from thermoplastic resin (b), the integrated structure having at least one structure of the structural member (A) and the structural member (B) as integrated together side by side has a good bonding strength between the structural member (A) molded from polyacetal-based resin and the structural member (B) molded from other thermoplastic resin, typically polyethylene.
Abstract:
The invention relates to novel thermoplastic multi-layer composites comprising at least a) a layer formed from a molding compound based on a polyamide and b) a second layer formed from a molding compound based on a linear alternating polyketone polymer from carbon monoxide and an ethylenically unsaturated hydrocarbon compound, at least part of which layer b) is adjacent to layer a).
Abstract:
The invention relates to a composite tubular article consisting of a vulcanized elastomer containing carboxylic acid or dicarboxylic acid anhydride functional groups, which is used in combination with a thermoplastic elastomer containing polyamide blocks. The invention also relates to a process for the preparation of such articles, characterized in that a tube consisting of an outer layer of thermoplastic elastomer containing polyamide blocks and optionally an inner layer consisting of a thermoplastic with good liquid-barrier property is sheathed by extrusion at an appropriate temperature of an elastomeric composition comprising a synthetic or natural elastomer containing carboxylic acid or dicarboxylic acid anhydride functional groups, a crosslinking system and optionally various adjuvants and fillers, in that the composite tubular article obtained is vulcanized, preferably at a temperature of between -5.degree. C. and +30.degree. C. in relation to the Vicat point of the said thermoplastic elastomer containing polyamide blocks. This process produces composite tubular articles exhibiting excellent properties, particularly of flexibility and of peel strength of the outer layer.The invention also relates to petrol pipes consisting of such articles in which the inner face of the thermoplastic tube is coated with a polymer for protection against liquids and preferably against fuels.
Abstract:
A two component adhesive comprising a natural or synthetic rubber first component and a second component capable of destabilizing the natural or synthetic rubber first component slowly can be utilized in conventional application equipment designed for applying single component adhesives is provided.