Patent GB-1087716-A (GB)
Title: Bonding textile materials to mono-olefine rubbers
Inventor: OSBORNE ALAN PAUL
IPC: C08J5/06
Filed: 1963-04-23
Abstract: Textile fibres are bonded to a curable monoolefine rubber composition, defined as rubbery polymers and copolymers of at least one alph-mono-olefine and also interpolymers of at least two alpha-mono-olefines with at least one additional compound serving to confer unsaturation on the uncured interpolymer, by treating the textile fibres with an admixture in aqueous dispersion of an incompletely condensed phenolic resin and a copolymer of a conjugated diene monomer and 0.2 to 10% by weight of an unsaturated ketone, drying the treated textile fibres, coating the fibres with the curable mono-olefine rubber composition, and heating the assembly to cure the rubber composition.  The ratio by weight of phenolic resin to copolymer may be from 1:9 to 9:1. Examples of conjugated diene monomers are given.  The unsaturated ketone may be an unsaturated alkyl ketone containing not more than four carbon atoms in the alkyl group, examples are given.  The phenolic resin may be a resorcinalformaldehyde resin.  The admixture of aqueous dispersions may have a total solids content of from 5 to 30 per cent by weight. The mono-olefine rubber may be a copolymer of two alpha-mono-olefines which may contain from 2 to 4 carbon atoms, examples of which are given, or an interpolymer of at least two alpha-mono-olefines with up to 15 mole per cent of the interpolymer, of a monomer to confer unsaturation examples of monomer are given.  The mono-olefine rubber may contain ethylene in an amount of from 40 to 80 mole % of the olefine content.  The textile fibres may be of nylon, cotton, rayon, or polyester. Polyester, e.g. polyethylene glycol terephthalate, fibres may be given an initial treatment with a composition comprising polyvinyl chloride and a cross linking agent, e.g. triallyl cyanurate or a polyamide resin: an isocyanate, or a polyethylene imine or with hexamethylene diethylene urea before treatment with the latex-resorcinol-formaldehyde adhesive.ALSO:Textile material is bonded to a curable mono-olefine rubber composition, defined as rubbery polymers and copolymers of at least one alpha-mono-olefine and also interpolymers of at least two alpha-mono-olefines with at least one additional compound serving to confer unsaturation on the uncured interpolymer, by treating the textile material with an admixture in aqueous dispersion of an incompletely condensed phenolic resin and a copolymer of a conjugated diene monomer and 0.2 to 10% by weight of an unsaturated ketone, drying the treated textile material, coating the textile with the curable mono-olefine rubber composition, and heating the assembly to cure the rubber composition.  The ratio by weight of phenolic resin to copolymer may be from 1:9 to 9:1.  Examples of conjugated diene monomers are given.  The unsaturated ketone may be an unsaturated alkyl ketone containing not more than four carbon atoms in the alkyl group; examples are given.  The phenolic resin may be a resorcinal-formaldehyde resin.  The admixture of aqueous dispersions may have a total solids content of from 5 to 30 per cent by weight. The mono-olefine rubber may be a copolymer of two alpha-mono-olefines which may contain from 2 to 4 carbon atoms, examples of which are given, or an interpolymer of at least two alpha-mono-olefines with up to 15 mole per cent of the interpolymer, of a monomer to confer unsaturation; examples of monomer are given.  The mono-olefine rubber may contain ethylene in an amount of from 40 to 80 mole % of the olefine content.  The textile material may be of nylon, cotton, rayon, or polyester. Polyester, e.g. polyethylene glycol terephthalate, textiles may be given an initial treatment with a composition comprising polyvinyl chloride and a cross-linking agent, e.g. triallyl cyanurate or a polyamide resin; an isocyanate, or a polyethylene imine, or with hexamethylene diethylene urea before treatment with the latex-resorcinol-formaldehyde adhesive.