US 5,182,338 AGranted

Polymer blend compositions

AssigneeGeneral Electric Company

InventorSatish K. Gaggar

Life of this patent

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Abstract

The present invention is directed to the use of an epihalohydrin/ethylene oxide copolymer to impart antistatic properties to polyolefins, such as polypropylene.

Claims2

Dependent claims

A polymer blend composition, comprising 5 to 20 weight percent of an antistatic agent and 80 to 95 weight percent of a polyolefin polymer, said antistatic agent comprising a copolymer of epihalohydrin and alkylene oxide in a weight ratio of from about 15:85 to about 40:60.

Dependencies are inferred from the claim text.

Facts

Application: 07/796,930Filed 22 Nov 1991 · continuation
Priority: 17 Nov 1989
Granted: 26 Jan 1993
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

C08L 23/02
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of…:…
C08L 23/10
Not modified by chemical after-treatment: homopolymers or copolymers of propene
Y10S 524/91
Synthetic resins or natural rubbers -- part of the class 520 series: antistatic compositions
C08L
Compositions of macromolecular compounds

Family

Serial437,711Parent of this continuation · filed 17 Nov 1989
US 5,182,338 AThis patent

From the US filing history. Foreign family members aren’t listed.

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