Method for making an article of partially crystalline organic re

Details Method for making an article of partially crystalline organic re Method for making an article of partially crystalline organic re

1981-03-18

1983-02-22

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Differential temperature conditioning

264544, 264550, 264553, B29C 1704

Patent

active

043748007

ABSTRACT:
A shaped article such as a container of polyalkylene terephthalate resin is described. The shaped article includes a body portion in which the resin has an average crystallinity of at least about 20 percent. The shaped article is provided with the flange which adjoins the body portion of the article. At least part of the flange has an average crystallinity less than that of the body portion and preferably of not more than about 10 percent. Process and apparatus which may be employed in the manufacture of such an article are also described.

REFERENCES:
patent: 3341895 (1967-09-01), Shelby
patent: 3496143 (1970-02-01), Siggel et al.
patent: 3960807 (1976-06-01), McTaggart
patent: 4127631 (1978-11-01), Dempsey et al.
patent: 4233022 (1980-11-01), Brady et al.

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