Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-02-24
1976-08-17
Jacobs, Lewis T.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260860, C08L 6702
Patent
active
039753557
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.
REFERENCES:
patent: 3218372 (1965-11-01), Okamura et al.
patent: 3479318 (1969-11-01), Jackson et al.
patent: 3745140 (1973-07-01), Segal
patent: 3833685 (1974-09-01), Wambach
patent: 3889039 (1975-06-01), Wainer
Amin Surendra A.
Bollen Philip Stuart
Allied Chemical Corporation
Criss Roger H.
Henry Patrick L.
Jacobs Lewis T.
Person S. M.
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