Patent · US Expired

Composition and use

US5215581A · kind A · utility

5Cited by
4References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 17, 1991
Grant dateJun 1, 1993
Priority date
Expiry dateJul 17, 2011

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G2261/312
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A particulate inorganic solid, especially hydrated alumina or magnesium hydroxide, which has been treated with a hydroxybenzene derivative of a defined type, particularly a gallate. The treated solid may be incorporated into a polymer especially a thermoplastic polymer such as polypropylene. Alternatively, the solid, the hydroxybenzene derivative and the polymer can be blended together. The composition obtained can be processed even when containing 70% by weight of the inorganic solid.

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