White opaque film having low transparency and improved...

Details White opaque film having low transparency and improved... White opaque film having low transparency and improved...

2007-07-03

2007-07-03

Chen, Vivian (Department: 1773)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

C428S347000, C428S446000, C428S447000, C428S480000, C428S910000, C428S304400, C428S318400, C428S319300, C428S319700, C264S288400, C264S290200

Reexamination Certificate

active

11443992

ABSTRACT:
The invention relates to a white opaque film formed from a crystallizable thermoplastic, preferably thermo-plastic polyester in the form of polyethylene terephthalate, barium sulfate and titanium dioxide as pigments, at least one optical brightener, and optionally at least one dye soluble in the thermoplastic. The film optionally includes, an additional functionality, e.g. in the form of an adhesive coating, of a coating with aminosilane or silicone, of UV resistance, of hydrolysis resistance, of flame retardancy, or of a sealable outer layer.

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