Patent · US Expired

Terpolymer composition

US4443576A · kind A · utility

24Cited by
17References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 29, 1982
Grant dateApr 17, 1984
Priority date
Expiry dateMar 29, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F265/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Novel polymeric compositions useful as thickeners and rheology modifiers for oil-in-water emulsion systems are disclosed. The water-soluble or swellable compositions described contain, prior to polymerization, from: ______________________________________ 10-70% Acrylamide or methacrylamide; 20-70% Acrylic acid, methacrylic acid, or their water-soluble salts; 5-50% Of a hydroxyalkylacrylate; 0-10% Of a polyfunctional monomeric branching material; and, 0-15% Low molecular weight water-soluble copolymer of a non-ionic or anionic water-soluble vinyl addition monomer and lower alkylacrylate. ______________________________________ Optionally a water-soluble polymer dispersant may be added to the composition after polymerization.

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