Heat-sealable polybutylene terephthalate film

Details Heat-sealable polybutylene terephthalate film Heat-sealable polybutylene terephthalate film

1990-07-05

1992-04-28

Seidleck, James J.

Stock material or miscellaneous articles

Hollow or container type article

Nonself-supporting tubular film or bag

428 355, 525439, 264563, 2641761, C08L 6702

Patent

active

051088061

ABSTRACT:
Heat-sealable films formed of a polybutylene terephthalate resin composition including between 50 to 95% by weight of a polybutylene terephthalate base resin having an intrinsic viscosity of 0.7 or greater, and between 5 to 50% by weight of a polycarbonate resin having an intrinsic viscosity of 0.4 or greater melt-blended with the polybutylene terephthalate base resin.

REFERENCES:
patent: 3956229 (1976-05-01), Bollen et al.
patent: 4515863 (1985-05-01), Caines
patent: 4515925 (1985-05-01), Kleiner et al.
patent: 4906709 (1990-03-01), Morris et al.

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