Polyetherester elastomer composition

Details Polyetherester elastomer composition Polyetherester elastomer composition

1985-10-28

1988-03-15

Short, Patricia A.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524539, 525444, C08L 6702

Patent

active

047314079

ABSTRACT:
A specific elastomeric composition is formed by melt blending two particular elastomers, each composed of hard and soft segments made from poly(tetra-methylene ether) glycol, 1,4-butane diol and a phenylene dicarboxylic acid or a derivative thereof. The blend exhibits a melting endotherm that extends from no lower than 120.degree. C. to no higher than 215.degree. C. with a melting peak in the range of 150.degree. to 175.degree. C. Films made from the composition are particularly suited for use as elastic leg-strips in diapers.

REFERENCES:
patent: 3651014 (1972-03-01), Witsiepe
patent: 3763109 (1973-10-01), Witsiepe
patent: 3766146 (1973-10-01), Witsiepe
patent: 3917743 (1975-11-01), Schroeder et al.
patent: 3932326 (1976-01-01), Hoh et al.
patent: 3968183 (1976-07-01), Hayashi
Nishimura et al "Elastomers Based on Polyester"J. Macromol. Sci. (Chem.), Al(4), 617-625 (1967).

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