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US 4,381,375 AGranted
Method for vulcanizing ethylene/acrylic or vinyl ester/glycidyl(meth) acrylate copolymer with piperazinium diphenoxide salt of chloro-substituted phenol
AssigneeE. I. Du Pont de Nemours and Company
InventorLeon L. Harrell, Jr.
Life of this patent
Estimating the term…
Abstract
Elastomeric ethylene/acrylic or vinyl ester/glycidyl(meth)acrylate copolymers, optionally containing carbon monoxide moieties, are cured with piperazinium diphenoxide salts, e.g. piperazinium di-(2-chloro-4-nitrophenoxide).
Claims12
A vulcanizable elastomeric composition comprising a copolymer consisting essentially of copolymerized units of:
- (a) 25-65 weight percent of a comonomer selected from the group consisting of acrylic and vinyl ester, provided that the acrylic ester is other than glycidyl acrylate and glycidyl methacrylate,
- (b) 2-10 weight precent of a cure-site monomer selected from the group consisting of glycidyl acrylate and glycidyl methacrylate,
- (c) 0-15 weight percent carbon monoxide,
- (d) a complemental amount of ethylene from 30-70 weight percent,
- and a curing agent selected from the group consisting of piperazinium diphenoxide salts of chloro-substituted phenols.
2 more elements
A method of vulcanizing an elastomeric composition, said composition comprising a copolymer consisting essentially of copolymerized units of:
- (a) 25-65 weight percent of a comonomer selected from the group consisting of acrylic and vinyl ester, provided that the acrylic ester is other than glycidyl acrylate and glycidyl methacrylate,
- (b) 2-10 weight percent of a cure-site monomer selected from the group consisting of glycidyl acrylate and glycidyl methacrylate,
- (c) 0-15 weight percent carbon monoxide,
- (d) a complemental amount of ethylene from 30-70 weight percent,
- said method comprising mixing with said composition a curing agent selected from the group consisting of piperazinium diphenoxide salts of chloro-substituted phenols.
2 more elements
Dependencies are inferred from the claim text.