Article of partially crystalline organic resin and method and ap

Details Article of partially crystalline organic resin and method and ap Article of partially crystalline organic resin and method and ap

1982-08-20

1984-09-04

Pollard, Steven M.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

264522, 264544, 264550, 264553, 206557, B65D 100, B29C 1704

Patent

active

044692706

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: 3865302 (1975-02-01), Kane
patent: 4127631 (1978-11-01), Dempsey et al.

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