Patent · US Expired

White flame-resistant uv-stable film made from a crystallizable thermoplastic, a method for production and the use thereof

US7186455B2 · kind B2 · utility

1Cited by

19References

28Claims

0Family size

Assignee

Mitsubishi Polyester Film GmbH · US

Inventors

Ursula Murschall · Nierstein, DE
Andreas Stopp · Ingelheim am Rhein, DE
Guenther Crass · Taunusstein, DE
Ulrich Kern · Ingelheim am Rhein, DE

Key dates

Filing date	Jan 11, 2001
Grant date	Mar 6, 2007
Priority date	—
Expiry date	Apr 25, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31786
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a white, biaxially oriented film which comprises a crystallizable thermoplastic as main componet and is characterized by further comprising at least one UV-stabilizer, at least one white pigment and at least one flame-proofing agent, which is soluble in the thermoplastic and introduced directly, during the film production, by masterbatch technology, whereby the masterbatch is pre-conditioned by gradual heating under reduced pressure and with stirring.

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