3m Innovative Properties Company

Eric W Adair

Werner M A Grootaert

Miguel Antonio Guerra

Brant Ulrick Kolb

Terri A Shefelbine

Naiyong Jing

Peter Bissinger

Kai Helmut Lochhaas

Werner M Grootaert

Steven Gustaaf Corveleyn

Robert E Eggers

Werner MA Grootaert

Terri A Sheflbine

Described herein is a curable fluoropolymer composition comprising: an amorphous perfluoropolymer; and nanoparticles of zirconium oxide.

Amorphous perfluoropolymers comprising zirconium oxide nanoparticles

Described herein is a method of coagulating a fluoropolymer latex comprising: providing an amorphous fluoropolymer latex; providing unmodified inorganic nanoparticles; contacting the amorphous fluoropolymer latex with a sufficient amount of unmodified inorganic nanoparticles to coagulate the amorphous fluoropolymer.

Method of coagulating an amorphous fluoropolymer latex

A curative composition suitable for fluoroelastomers comprising an anion of Formula III: 

Curing compositions for fluoropolymers

A curative composition comprising a cation and an anion of the formula AQ, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qis an organo onium, and Ais an anion, provided that at least one Ais selected from the formula: wherein each R independently is H, halo, alkyl, aryl, aralkyl, or cycloalkyl, and which also may be halogenated, fluorinated, or perfluorinated, wherein two or more of R and R' groups may together form a ring, wherein each R group independently may contain one or more heteroatom(s), wherein R&#x2032; can be the same as R, with the proviso that R&#x2032; cannot be halo. Also provided are a fluoropolymer composition including this curative, a method of making a fluoropolymer, and fluoropolymer articles containing curable or cured fluoropolymer compositions.

Provided is a composition comprising a fluorocarbon polymer, a radical initiator, and a first curing co-agent. The first curing co-agent comprises at least one silicon-containing group selected from a hydrocarbyl silane and a hydrocarbyl silazane. Furthermore, the first curing co-agent is substantially free of siloxane groups and comprises at least one polymerizable ethylenically unsaturated group. Also provided are the reaction product of these compositions and a method of making an elastomer comprising curing these compositions.

Fluoropolymer curing co-agent compositions

Provided is a composition comprising a fluoropolymer comprising interpolymerized units derived from a nitrile cure site monomer, and an amino-substituted aromatic curative compound having at least one substituent other than hydrogen, wherein the net effect of the substituent(s) is not electron withdrawing, the curative has a pKa above about 12, the compound may contain one or more heteroatom(s) provided that no heteroatom directly bonded to a hydrogen is in the position ortho to the amino group, and one or more substituents may together form a ring, which ring may be aromatic and may include one or more heteroatoms(s). Also provided are the reaction products of the fluoropolymer and the curative described, cured articles, and a method of making the fluoropolymer compositions and articles.

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Hugo, MN, United States of America

Eric W Adair