Transparent and translucent poly(butene-1)

Details Transparent and translucent poly(butene-1) Transparent and translucent poly(butene-1)

1978-08-16

1980-08-26

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

5263486, 528497, 528498, C08F 600

Patent

active

042196396

ABSTRACT:
A method for altering the transparency of a stable hexagonal polymorphic poly(butene-1) obtained from unstable tetragonal crystalline poly(butene-1) comprising contacting the tetragonal crystalline poly(butene-1) with a volatile solvent for a short time, then removing from the solvent, and allowing solvent adhereing to the poly(butene-1) to evaporate. The finished polymer can be opaque, transparent, or translucent depending upon the solvent and temperature used.

REFERENCES:
patent: 3265648 (1966-08-01), Boor et al.
patent: 3558551 (1971-01-01), Gilbert et al.
patent: 3894120 (1975-07-01), Frese et al.
Polymer Letters, vol. 2, pp. 519-521 (1964).
Journal of Pol. Sci., Part A, vol. 3, pp. 3803-3813, (1965).
Polymer Letters, vol. 5, pp. 839-841 (1967).

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