Block copolymer of polyamide and polyether, and its preparation

Details Block copolymer of polyamide and polyether, and its preparation Block copolymer of polyamide and polyether, and its preparation

1974-02-06

1976-03-23

Lieberman, Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 78R, 264210F, 428267, 428395, C08L 7700

Patent

active

039460894

ABSTRACT:
A block copolymer of 99.8 to 90 % by weight of a polyamide segment and 0.2 to 10 % by weight of a polyether segment dispersed in an island state of not more than about 10 .mu. in particle size, the polyamide segment comprising at least one diamine component containing 100 to 50 mol % (preferably 100 to 70 mol %) of m-xylylenediamine or its mixture with p-xylylenediamine and at least one dicarboxylic acid component containing 100 to 50 mol % (preferably 100 to 70 mol %) of at least one aliphatic dicarboxylic acid having 6 to 12 carbon atoms, the polyether segment comprising at least one polyether having a molecular weight of 2,000 to 20,000 and an amino group or a carboxyl group at at least one terminal position thereof and the block copolymer having a scattering index of not less than 1.

REFERENCES:
patent: 3384681 (1968-05-01), Kobayashi
patent: 3514498 (1970-05-01), Okazaki
patent: 3522329 (1970-07-01), Okazaki
patent: 3549724 (1970-12-01), Okazaki
patent: 3632666 (1972-01-01), Okazaki

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