Wire coating composition
First Claim
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1. A composition comprising an admixture of:
- a. 35 to 70 weight percent of an anhydride copolymer which is the reaction product of;
(1) an alkyl or aryl substituted or unsubstituted unsaturated cyclic anhydride wherein each alkyl group contains up to 6 C atoms and the cyclic group contains 4 to 15 C atoms, and(2) an unsaturated C10 to C24 aliphatic hydrocarbon;
b. 10 to 41 weight percent of a compatible, flexibilizing polymer which is selected from polyisobutylene and polymers of ethylene copolymerized with vinyl acetate, acrylate esters, methacrylate esters, and alpha-olefins, andc. 10 to 40 weight percent of a hydrophobic, compatible, fluoroaliphatic radical-containing composition, said fluoroaliphatic radical being a monovalent, fluorinated, aliphatic radical having 5 to 14 carbon atoms which can be interrupted by divalent O atoms or trivalent N atoms bonded to C atoms;
said fluoroaliphatic radical-containing composition being capable of providing water-repellancy to said admixture; and
d. up to 10 weight percent of a mercaptan compound.
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Abstract
An insulative coating composition for providing water-repellancy to and protecting communication wire comprises an admixture of an anhydride copolymer, a flexibilizing copolymer, a suitable solvent system, a hydrophobic, soluble, compatible fluoroaliphatic radical-containing composition and optionally, a mercaptan, and optionally, an antioxidant. Articles coated with the insulative composition are disclosed.
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Citations
10 Claims
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1. A composition comprising an admixture of:
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a. 35 to 70 weight percent of an anhydride copolymer which is the reaction product of; (1) an alkyl or aryl substituted or unsubstituted unsaturated cyclic anhydride wherein each alkyl group contains up to 6 C atoms and the cyclic group contains 4 to 15 C atoms, and (2) an unsaturated C10 to C24 aliphatic hydrocarbon; b. 10 to 41 weight percent of a compatible, flexibilizing polymer which is selected from polyisobutylene and polymers of ethylene copolymerized with vinyl acetate, acrylate esters, methacrylate esters, and alpha-olefins, and c. 10 to 40 weight percent of a hydrophobic, compatible, fluoroaliphatic radical-containing composition, said fluoroaliphatic radical being a monovalent, fluorinated, aliphatic radical having 5 to 14 carbon atoms which can be interrupted by divalent O atoms or trivalent N atoms bonded to C atoms;
said fluoroaliphatic radical-containing composition being capable of providing water-repellancy to said admixture; andd. up to 10 weight percent of a mercaptan compound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. The composition according to claim 11 wherein said alkyl or alkoxy mercaptan is octadecene mercaptan.
Specification