Patent · US Expired

Synthetic polymer compositions stabilized against discoloration and degradation

US4116932A · kind A · utility

0Cited by

3References

3Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hans-Josef Buysch · Krefeld, DE
Harald Oertel · Odenthal, DE
Ernst Roos

Key dates

Filing date	May 20, 1976
Grant date	Sep 26, 1978
Priority date	—
Expiry date	May 20, 1996

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/13
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a synthetic polymer composition stabilized against light, heat and atmospheric influences comprising a polymer and from 0.01 to 10% by weight based on the quantity of the synthetic polymer, of a mixture of .alpha.,.alpha.'-bis-(2-hydroxy-3,5-dialkylphenyl)-m-diisopropyl benzene and .alpha.,.alpha.'-bis-(2-hydroxy-3,5-dialkylphenyl)-p-diisopropyl benzene, the mixture containing at least 20% by weight of the m-compound. The stabilized synthetic polymer compositions are used in various forms, e.g. in the form of fibres, filaments, yarns, sheetings, films, foils, latex, foam or coatings.

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