Process for the production of a drawn product of crystalline pol

Details Process for the production of a drawn product of crystalline pol Process for the production of a drawn product of crystalline pol

1984-11-08

1987-02-17

Silbaugh, Jan

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Reshaping running or indefinite-length work

264204, 264206, 264280, B29C 5500

Patent

active

046438653

ABSTRACT:
A process for producing a drawn product of a crystalline polymer having tenacity and high modulus, which comprises compressing a gel-like material prepared from a solution of a crystalline polymer in a solvent (i.e. a gel-like sheet material (A) consisting of gel-like particles of a crystalline polymer and a solvent which is prepared by cooling a solution of a crystalline polymer in a solvent, or a gel-like film material (B) which is prepared by casting a solution of a crystalline polymer in a solvent) at a temperature lower than the temperature at which the gel-like material is dissolved, whereby removing a part of the solvent contained in the gel-like material, and drawing the compressed material, preferably using a drawing die. The drawn product is particularly useful as a tension member for optical fiber cable.

REFERENCES:
patent: 4344908 (1982-08-01), Smith et al.
patent: 4413110 (1983-11-01), Kavesh et al.
Perkins et al., "Effect of MCU on Phys and Mch Prop of Ultra-Drawn High Dens PE"; PE and S 3/76, vol. 16, No. 3.
Smith et al., "Ultradrawing of High MW PE Cost from Solution: Influence of Int Poly Comp"; J of PS, 1981, vol. 19, 887-888.

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