Patent · US Expired

Toner pigment treatment process for reducing the residual styrene monomer concentration to less than 0.5 percent by weight

US4314931A · kind A · utility

9Cited by
17References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 9, 1980
Grant dateFeb 9, 1982
Priority date
Expiry dateJun 9, 2000

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S524/904
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

This invention relates to a process for substantially eliminating polymerization inhibition in a pigment containing dispersion polymerization reaction, which comprises grafting polymer molecules onto the pigment used in the polymerization reaction, whereby there results a polymerized product which contains essentially no monomer material.

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