Copolyetherester elastomer with poly(1,3-propylenebibenzoate) ha

Details Copolyetherester elastomer with poly(1,3-propylenebibenzoate) ha Copolyetherester elastomer with poly(1,3-propylenebibenzoate) ha

1991-08-29

1992-07-07

Acquah, Samuel A.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428364, 528272, 528300, 528308, B29D 2200

Patent

active

051281856

ABSTRACT:
A thermoplastic, segmented, copolyetherester elastomer having soft segments derived from poly(alkylene oxide) glycols and bibenzoic acid, and hard segments constituting 10-17 weight percent of the elastomer and being 95 to 100% poly(1,3-propylenebibenzoate). Melt-spun fibers of the elastomer have significantly superior elastic and set properties and are less stiff than similar elastomeric fibers having the same soft segments but with hard segments of poly(ethylenebibenzoate), poly(1,4-butylenebibenzoate) or poly(1,6-hexylenebibenzoate).

REFERENCES:
patent: 3963802 (1976-06-01), Shih
patent: 4048128 (1977-09-01), Eastman
patent: 4156702 (1979-05-01), Edinger
patent: 4247427 (1981-01-01), Edinger
patent: 4731435 (1988-03-01), Greene et al.
patent: 4906729 (1990-03-01), Greene et al.
patent: 4937314 (1990-06-01), Greene

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