Process for the productions of multi-cellular stretched articles

Details Process for the productions of multi-cellular stretched articles Process for the productions of multi-cellular stretched articles

1974-10-29

1978-09-05

Anderson, Philip

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

264 41, 264 453, 264210R, 264288, 264DIG17, 521 97, 521 90, 521 93, 521 88, 521134, 521136, 521138, 521143, 521144, 521146, B29D 2700, C08J 900

Patent

active

041118600

ABSTRACT:
A process for the manufacture of a multicellular stretched sheet which comprises melt compounding a thermoplastic matrix polymer and an additive comprising a polymeric or non-polymeric organic compound or a metal salt of an organic acid, forming the blend into a shaped article and stretching the article at a temperature within the normal orientation temperature of the matrix polymer and below the glass-transition temperature of the polymeric additive or below the melting or softening point of the non-polymeric additive.

REFERENCES:
patent: 3694399 (1972-09-01), Schwarz
patent: 3725520 (1973-04-01), Suzuki et al.
patent: 3741860 (1973-06-01), Otsubo et al.
patent: 3765999 (1973-10-01), Toyoda
patent: 3775521 (1973-11-01), Yamamoto et al.
patent: 3783093 (1974-01-01), Gallacher
patent: 3790435 (1974-02-01), Tanba et al.
patent: 3840625 (1974-10-01), Yamamoto et al.
patent: 3903234 (1975-09-01), Ikeda et al.
patent: 4067938 (1978-01-01), Jack
Muus, Laurits T.; N. Gerard McCrum and Frank C. McGrew. "On the Relationship of Physical Properties to Structure in Linear Polymers of Ethylene and Propylene" in SPE Journal May 1959, pp. 368-372.

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