Thermoplastic polyesters, and method of making hollow articles t

Details Thermoplastic polyesters, and method of making hollow articles t Thermoplastic polyesters, and method of making hollow articles t

1980-03-25

1981-12-22

Hoke, V. P.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

528173, B29C 1707, B29D 2303

Patent

active

043070604

ABSTRACT:
Disclosed are new copolyesters of terephthalic acid, bis(4-.beta.-hydroxyethyoxyphenyl)sulfone, ethylene glycol and a very small amount of a trifunctional cross-linking agent, particularly useful as molding compounds, especially for the extrusion-blow molding process of making hollow articles, and a method of making hollow articles.

REFERENCES:
patent: 2593411 (1952-04-01), Caldwell
patent: 2973339 (1961-02-01), Muenster et al.
patent: 3558557 (1971-01-01), Hrach et al.
patent: 4110315 (1978-08-01), Go
patent: 4145517 (1979-03-01), Go
patent: 4188357 (1980-02-01), Go
patent: 4196275 (1980-04-01), Go

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