POLYMER BLENDS HAVING IMPROVED THERMAL RESISTANCE
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United States of America
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Dec 26, 2024
app pub date -
Nov 3, 2022
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Nov 3, 2022
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Abstract
Embodiments of the present disclosure are directed to a polymeric composition comprising the cross-linked reaction product of an ionomer and a silane crosslinking agent. The ionomer may include an E/X/Y polymer where E is an ethylene monomer, X is α,β-ethylenically unsaturated carboxylic acid comonomer having 3 to 8 carbons, or its ester, and Y is alkyl acrylate or dicarboxylic acid comonomer. The ionomer comprises from 1 to 30 wt. % of X and from 0 to 40 wt. % of Y. At least a portion of the carboxyl groups of X and optionally Y are neutralized with a metal cation. The silane crosslinking agent has a formula Z((CH2)aSi(OR)b)c. Z is a mono-functional reactive group, R is an alkyl group having 1 to 4 carbon atoms or a hydrogen atom, a is from 1 to 4, b is 3, and c is from 1 to 2.
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