The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 1976
Filed:
Feb. 24, 1975
Philip Stuart Bollen, Auburn, PA (US);
Surendra A Amin, Pottsville, PA (US);
Allied Chemical Corporation, Morris Township, NJ (US);
Abstract
This invention provides a film or sheet capable of being thermoformed into a shaped article and being formed from a blend of about 60 to 85 parts by weight of a polyethylene terephthalate having an intrinsic viscosity of at least about 0.90, about 15 to 40 parts by weight of a polycarbonate and about 5 to 20 parts by weight of a non-acidic silica filler, such as novaculite, the polyethylene terephthalate portion of the film or sheet having a degree of crystallinity in the range of about 20 to 40%. The present invention also provides compositions for forming such films and sheets and shaped articles thermoformed from such films or sheets, such as cook-in-trays. This invention also provides a process of forming such films or sheets.