Patent · US Expired

Lubricants for vinyl chloride polymers

US4637887A · kind A · utility

11Cited by
2References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 30, 1985
Grant dateJan 20, 1987
Priority date
Expiry dateMay 30, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S264/79
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Triglycerides containing hydroxy fatty acid residues, of the type obtainable by hydrogenating epoxidized natural fats and oils, are used as lubricants for the molding of polyvinyl chloride or copolymers predominantly containing vinyl chloride, and are a replacement for hardened castor oil.

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