Patent · US Expired

Polymerization process and product

US4443568A · kind A · utility

55Cited by
9References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 26, 1981
Grant dateApr 17, 1984
Priority date
Expiry dateOct 26, 2001

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F285/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

The product and process is directed to polymerizing second stage ethylenically unsaturated monomers within an aqueous dispersion of a preformed epoxy based resinous material comprising a mixture of graft epoxy polymer containing grafted addition polymer grafted to the epoxy backbone, ungrafted epoxy polymer, and ungrafted addition polymer uniformly dispersed in water wherein the second stage monomers are polymerized in the presence of at least 0.1% of benzoin derivative reducing agent based on monomer weight in combination with a peroxide polymerization initiator.

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