Elastomeric shaped article and method for preparing the same

Details Elastomeric shaped article and method for preparing the same Elastomeric shaped article and method for preparing the same

1980-09-11

1982-02-16

Marquis, Melvyn I.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Layered, stratified traversely of length, or multiphase...

260 22CQ, 260 28R, 264211, 264349, 525408, 525411, 525444, B29F 310

Patent

active

043158820

ABSTRACT:
An improved shaped article can be prepared from a blockcopolyetherester by (a) mixing the same with poly(butylene terephthalate) at a temperature of about 200.degree. to about 230.degree. C. whereby fine fragments of poly(butylene terephthalate) which maintains its own crystalline phase are dispersed in the matrix of the blockcopolyetherester, and (b) molding the mixture at a temperature below the melting point of the poly (butylene terephthalate). The addition of an ester wax and/or a calcium soap improves the extrusion-moldability of the mixture.

REFERENCES:
patent: 3907926 (1975-09-01), Brown et al.
patent: 3917743 (1975-11-01), Schroeder et al.
patent: 4130603 (1978-12-01), Tanaka et al.

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