Patent · US Expired

Opaque film for candy twist wrapping

US4842187A · kind A · utility

32Cited by

5References

22Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Siegfried Janocha · Wiesbaden, DE
Guenther Crass · Taunusstein, DE
Gunter Schloegl · Kelkheim, DE
Lothar Bothe · Mainz, DE

Key dates

Filing date	Mar 30, 1987
Grant date	Jun 27, 1989
Priority date	—
Expiry date	Mar 30, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31913
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Described is an opaque, biaxially draw-oriented thermoplastic film for candy twist wrapping. The film is formed from a polymer mixture comprising from about 40 to about 60% by weight of polypropylene and from about 35 to about 55% by weight of polystyrene, relative to the total weight of the mixture. The mixture additionally comprises from about 5 to about 15% by weight of a filler material, relative to the total weight of the mixture.

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