Block copolyetheramides

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber

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528272, 528288, 528292, 528307, 528308, 5283086, 528310, 528324, 528326, 528330, 528335, 525425, 525430, 428373, 428395, D02G 300

Patent

active

052138917

ABSTRACT:
Block copolyetheramides, well adopted for conversion into a wide variety of useful thermoplastic elastomer shaped articles, have the formula: ##STR1## in which D is the residue of a diacid oligamide having an Mn ranging from 300 to 3,000 and/or the residue of the diacid chain limiter, PE is the residue of a polyetherdiol having an Mn ranging from 200 to 5,000,.times.is a straight or branched chain (cyclo)aliphatic or aromatic hydrocarbon having from 4 to 20 carbon atoms, n is a number ranging from 1 to 4, and m is an average number ranging from 2 to 50; these are prepared by polycondensing a multiblock polymer having the formula: ##STR2## with a diamine H.sub.2 N--X--NH.sub.2.

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patent: 4345064 (1982-08-01), Mumcu
patent: 4349661 (1982-09-01), Mumcu
patent: 4376856 (1983-03-01), Tanaka et al.
patent: 4536563 (1985-08-01), Okitsu et al.
patent: 4578451 (1986-03-01), Weaver et al.

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