E.i. Dupont De Nemours and Company

The Chemours Company Fc, LLC

Dupont Polymers, Inc.

Dupont Dow Elastomers Inc.

Other

Plantic Technologies Limited

Kuraray America, Inc.

Dupont Specialty Products Usa, LLC

Peter Arnold Morken

Christopher John Bish

Elliott Echt

Lin Wang

Amiya Ratan Tripathy

G Michael Collins

Lynda Kaye Johnson

Samuel David Arthur

Walter Werner Schmiegel

Elizabeth Forrester McCord

Yueli Wang

Charles John Talkowski

Andrew Edward Feiring

William Brown Farnham

Scott Christopher Jackson

Mark Gerrit Roelofs

Paul Raphael Resnick

Donald Frederick Lyons

George D Robinson

Christopher Marc Doyle

Alexander Anthony Marchione

Robert Clayton Wheland

John Chu Chen

Karlheinz Hausmann

Donna Lynn Visioli

Richard P Beatty

Stephen James Getty

Phan Linh Tang

Dipti Dilip Khasnis

Kishan Khemani

Thomas Peter Tufano

Kohtaro Takahashi

Adam Paul Smith

Vincent Franco

William H Zimmerman

Ming Hong Hung

Matthew Scott Hall

David C Urian

James Daniel MacLachlan

Benjamin Weaver Messmore

Janice V Granato

Paul Anthony Perry

Steven Furyk

Michael Deemer

Andrii Matsnev

Cameron Parrish

Xiaolin Liu

Edward Patrick Carey

Donald F Lyons

Kishan Chand Khemani

Curing fluoroelastomers using curing agents of formula, RN&#x2550;CRR, wherein Ris H; Ris selected from the group consisting of H, NH, and NRR; Ris selected from the group consisting of Ph, SOH, NRR, 2-pyridine, and CHCONH; Ris H; Ris selected from the group consisting of Ph, NH, and CN; Ris selected from the group consisting of H, NHPh, CCONH, Cto Clinear alkyl group, and Cto Cbranched alkyl group; and Ris selected from the group consisting of Ph, COOC(CH), NH, CHCOOH, CSNH, CNHNHCl, p-phenylCN, COPh, 

Curing agents for compounds

Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazone or oxime curatives.

Curable fluoroelastomer composition

A fluoroelastomer compound comprising at least one co-agent and at least one chemical entity comprising: (1) an azo functional group or (2) an oxazoline functional group, when cured into an article using a peroxide curing agent, the article exhibits no visible particles on the article surface when viewed at a magnification of 500 times that of an unmagnified image.

Curing fluoroelastomers using curing agents of formula, RN&#x2550;CRR, wherein Ris H; Ris selected from the group consisting of H, NH, and NRR; Ris selected from the group consisting of Ph, SOH, NRR, 2-pyridine, and CHCONH; Ris H; Ris selected from the group consisting of Ph, NH, and CN; Ris selected from the group consisting of H, NHPh, CCONH, Cto Clinear alkyl group, and Cto Cbranched alkyl group; and Ris selected from the group consisting of Ph, COOC(CH), NH2, CHCOOH, CSNH2, CNHNHCl, p-phenylCN, COPh, 

The process is provided for forming the reaction product comprising the homologue mixture of I(CF)I, wherein n is 3 to 7, which may contain at least one of the contaminants ICFI and I(CF)I, by the steps comprising (a) reacting iodine with hexafluoropropylene oxide at a temperature of 150&#xb0; C. to 210&#xb0; C. in a reactor, the amount of said hexafluoro-propylene oxide being a portion of the total amount of hexafluoropropylene oxide to be reacted with said iodine, thereby forming a reaction product containing gaseous perfluoroacetyl fluoride as a reaction by-product, (b) cooling said reaction product to become liquid except for said gaseous perfluoroacetyl fluoride, (c) venting said perfluoroacetyl fluoride from said reactor, and (d) repeating said steps (a), (b), and (c) until said total amount of said HFPO is reacted with said iodine.

[object Object]

The present invention is the process comprising forming a stable mixture comprising I(CF)I, wherein n is at least 3 and at least one of I(CF)I, wherein n is 1 or 2, as a contaminant in said mixture and heating said mixture to a temperature of at least 220&#xb0; C. to reduce the amount of said contaminant to be no greater than 1% when said contaminant is ICFI (n=1) and no greater than 0.1% when said contaminant is ICFCFI (n=2).

Disclosed herein is a curable composition comprising a polyhydroxy curable fluoroelastomer, a polyhydroxy curative, a cure accelerator and an unsaturated metal compound process aid comprising a siloxane having at least one vinyl or allyl group bonded to a silicon atom. Such curable compositions have a lower Mooney viscosity than do similar compositions absent the process aid.

Polyhydroxy curable fluoroelastomer compositions

Disclosed herein is a curable composition comprising a polyhydroxy curable fluoroelastomer, a polyhydroxy curative, a cure accelerator and an unsaturated metal compound process aid. Such curable compositions have a lower Mooney viscosity than do similar compositions absent the process aid.

Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain carbazates. The carbazate is of the general formula ROC(O)NHNHR, wherein Ris 9-fluorenylmethyl, benzyl, aryl, or a heterocycle; Ris H, alkyl, aryl, heterocycle, CORor CHR; Ris alkyl, aryl, benzyl or a heterocycle; and Ris a fluoroalkyl group.

Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazide curatives. The hydrazide is of the general formula RC(O)NHNHR, wherein Ris alkyl, aryl, benzyl, heterocycle, fluoroalkyl, or H; Ris H, alkyl, aryl, heterocycle, COR, C(O)H, or CHR; Ris alkyl, CHR, aryl, benzyl, or heterocycle; and Ris a fluoroalkyl group.

Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazide curatives. The hydrazide is of the general formula R(C(O))NHNHR, wherein n is 1 or 2; Ris NH, NHNH, NHR, NR, NHNHC(O)NH, NHNHC(O)NHNH, NHNHR, or NHC(O)NHNH; Ris H, alkyl, aryl, heterocycle, COR, C(O)R, CHR, or C(O)R; Ris alkyl, aryl, heterocycle, or CHR; and Ris a fluoroalkyl group.

Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile group-containing cure site monomer are cured with certain hydroxylamine derivatives. The hydroxylamine derivative is of formula R(C(O))NHORwherein n is 0 or 1; Ris H, C(O)R, C(O)R, C(O)OR, or C(O)SR; Ris H, C(O)R, or C(O)OR; Ris C-Calkyl group, aryl, heterocycle, benzyl, 9-fluorenylmethyl, or CHR; and Ris a fluoroalkyl group, with the proviso that Rand Rcannot simultaneously be H.

Provided herein are compositions comprising an ionomer and a polyamine or a tertiary polyamide. The polyamine and the tertiary polyamide have a molecular weight of greater than 500 Da and do not contain an ester moiety or a primary amine moiety. The polyamine comprises at least three moieties that are tertiary amines or hindered secondary amines, and the polyamide comprises tertiary amide moieties and no secondary or primary amide moieties. The compositions may optionally include a filler. Further provided are articles such as golf balls and films containing these compositions.

Golf balls containing ionomers and polyamines or tertiary polyamides

Disclosed is a composition comprising, or produced from, an organic acid-modified ionomer and silica filler having oil absorption greater than 100 g oil/100 g silica. Also disclosed are articles produced from the composition such as golf balls.

Compositions of organic acid modified ionomers filled with silica

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Wilmington, DE, United States of America

Peter Arnold Morken