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US 4,394,459 AGranted
Fast-curing foamable composition based on ethylene terpolymers
AssigneeE. I. Du Pont de Nemours and Company
InventorJohn Rys-Sikora
Life of this patent
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Abstract
A crosslinked closed-cell microcellular article of a terpolymer of ethylene, carbon monoxide, and a softening monomer.
Claims4
A crosslinked closed-cell microcellular foamed article with bulk density of at least 0.02 g/cm.sup.3 comprising a terpolymer of
- (i) ethylene;
- (ii) 10 to 40 percent by weight of a softening monomer selected from the group consisting of alkyl acrylates and methylacrylates having linear or branched alkyl groups of 1 to 18 carbon atoms, vinyl esters of saturated carboxylic acids having 1 to 18 carbon atoms and vinyl alkyl ethers wherein the alkyl group contains 1 to 18 carbon atoms;
- and
- (iii) 1.0 to 20 percent by weight carbon monoxide.
1 more element
Dependencies are inferred from the claim text.