Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1991-05-31
1992-05-26
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528298, 528300, 528301, 528302, 528308, 5283086, C08G 6320
Patent
active
051169371
ABSTRACT:
A segmented copolyetherester elastomer has soft segments formed from 60-95% poly(ethylene oxide) glycol and 40-45% of a second poly(alkylene oxide)glycol, preferably poly(tetramethylene oxide) glycol, and hard segments formed from terephthalic acid and ethylene glycol or 1,4-butane diol, the hard segments amounting to 8-20% of the elastomer weight. The elastomer can be molded into soft, elastic objects and can absorb water amounting to at least 100% of its dry weight.
REFERENCES:
patent: 3023192 (1962-02-01), Shivers
patent: 3932326 (1976-01-01), Hoh et al.
patent: 3941904 (1976-03-01), Hoh et al.
patent: 3954689 (1976-05-01), Hoeschele
patent: 4117033 (1978-09-01), Gale
patent: 4124653 (1978-11-01), Whitlock
patent: 4156702 (1979-05-01), Edinger
patent: 4247427 (1981-01-01), Edinger
patent: 4295652 (1981-10-01), Saito et al.
patent: 4321341 (1982-03-01), Neuberg et al.
patent: 4731407 (1988-03-01), Benim et al.
Acquah Sam A.
E. I. Du Pont de Nemours and Company
Kight III John
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