Method of manufacturing polybutylene terephthalate resin films

Details Method of manufacturing polybutylene terephthalate resin films Method of manufacturing polybutylene terephthalate resin films

1988-04-08

1989-09-26

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

26433121, 4253261, B29C 4720

Patent

active

048698644

ABSTRACT:
A polybutylene terephthalate resin film is produced by forming a film of a polybutylene terephthalate resin having an inherent viscosity of more than 1.0 by the inflation molding technique and under the condition of extrusion resin temperatures within a range defined by the following relation:

REFERENCES:
patent: 3725519 (1973-04-01), Seifried et al.
patent: 3875119 (1975-04-01), Aoki et al.
patent: 3961008 (1976-06-01), Kuratsuji et al.
patent: 4145466 (1979-03-01), Leslie et al.
patent: 4216253 (1980-08-01), Bonnebat et al.
patent: 4462953 (1984-07-01), Feil et al.

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