Patent · US Expired

Process for molding polyurethane foams

US4058492A · kind A · utility

68Cited by
5References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 18, 1976
Grant dateNov 15, 1977
Priority date
Expiry dateJun 18, 1996

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S264/14
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

The mold release properties of a molded polyurethane foam are improved by including in the foamable reaction mixture to be molded a reaction product of a ricinoleic acid and a long chain fatty acid.

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