Patent · US Expired

Transparent, impact-resistant molding compositions based on polyvinyl chloride

US4581414A · kind A · utility

1Cited by

8References

16Claims

0Family size

Assignee

Huels Aktiengesellschaft · DE

Inventors

Bernhard Stutzel · Marl, DE
Friedrich-Wilhelm Kupper · Marl, DE
Alfred Oberholz · Marl, DE
Alfred Wieland · Marl, DE

Key dates

Filing date	May 4, 1984
Grant date	Apr 8, 1986
Priority date	—
Expiry date	May 4, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L33/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Molding compositions based on polyvinyl chloride contain as the component imparting impact resistance homo- and copolymeric acrylic acid esters of oxethylates of phenol or of substituted phenols, wherein the difference of the indices of refraction n.sub.D.sup.20 (at least 20.degree. C., measured with the Na D line) between the basic polymer and the component imparting impact resistance at most is .+-.0.01; optionally copolymers with other acrylic acid esters can also be used in the molding compositions. The latter are inexpensive to manufacture and, besides transparency and weatherability, also have impact resistance.

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