Patent · US Expired

Methacrylimide-containing polymer

US5096976A · kind A · utility

6Cited by
6References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 28, 1989
Grant dateMar 17, 1992
Priority date
Expiry dateDec 28, 2009

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F8/32
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Disclosed is a thermoplastic methacrylimide-containing polymer comprising 2 to 100% by weight of structural units represented by the following formula (I): ##STR1## wherein R is hydrogen or a hydrocarbon group having 1 to 20 carbon atoms, and 0 to 98% by weight of structural units derived from an ethylenically unsaturated monomer, wherein the number of fine particles having a size of 0.5 to 25 .mu.m as measured by a particle counter in the polymer is not more than 50,000 per gram of the polymer.

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