IONOMER COMPOSITE

摘要

An ionomer composite comprises a partially neutralized acid copolymer that comprises copolymerized units of an α-olefin having 2 to 10 carbons and units of an α,β-ethylenically unsaturated carboxylic acid having 3 to 8 carbons and a nanoscale filler material that are mutually dispersible in an aqueous medium. The ionomer composite itself may be formed into an article of manufacture or let down in a host polymer to form a multipolymer composite. The resulting materials may exhibit a combination of one or more desirable characteristics, including low haze, absence of undesirable coloration, high toughness, high scratch resistance, low creep, reduced coefficient of thermal expansion, and higher modulus.

主权项

1. A composition of matter comprising:
(a) an ionomer composition comprising a parent acid copolymer that comprises copolymerized units of an α-olefin having 2 to 10 carbons and units of an α,β-ethylenically unsaturated carboxylic acid having 3 to 8 carbons, wherein a portion of the carboxylic acid groups of the parent acid copolymer are neutralized to form carboxylate salts with monovalent metal cations, ammonium cations, or any mixture thereof; and (b) a filler material comprising hydrophilic nanoparticles that are substantially free of organoammonium, organophosphonium, and organosulfonium compounds, and wherein the ionomer composition and the filler are mutually dispersible in an aqueous medium.