Patent · US Expired

Antistatic acrylic polymer compositions

US6525134B1 · kind B1 · utility

13Cited by
1References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 20, 2001
Grant dateFeb 25, 2003
Priority date—
Expiry dateJul 20, 2021

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L77/12
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

The present invention relates to an antistatic composition having improved impact strength behaviour, comprising, per 100 parts by weight:95 to 80 parts of (A)+(C),5 to 20 parts of (B),(A) being an acrylic polymer,(B) being a copolymer containing polyamide blocks and polyether blocks essentially comprising ethylene oxide —(C2H4—O)— units,(C) being a polymer chosen from acrylic impact modifiers, low-mass copolymers (C1) of styrene and of an unsaturated carboxylic anhydride, copolymers (C2) of ethylene and of an unsaturated carboxylic anhydride, copolymers (C3) of ethylene and of an unsaturated epoxide, or mixtures thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.