Thermoplastic linear block copolyether-polyesters as hot melt ad

Details Thermoplastic linear block copolyether-polyesters as hot melt ad Thermoplastic linear block copolyether-polyesters as hot melt ad

1977-02-04

1978-12-19

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

428195, 260 22R, 528301, 528302, C08L 6702

Patent

active

041306031

ABSTRACT:
A hot melt adhesive for textiles which comprises a thermoplastic linear block copolyether-polyester consisting essentially of a dicarboxylic acid unit derived from 40 to 60 mol % of terephthalic acid and 60 to 40 mol % of isophthalic acid, glycol unit derived from 1,4-butanediol and a polyether unit derived from polytetramethylene glycol having a molecular weight of about 600 to 1,300, wherein the amount of the polyether unit is 10 to 33 % by weight on the basis of the block copolyether-polyester and the block copolyether-polyester has a relative viscosity of 1.3 to 1.7 and a melting point of 95.degree. to 145.degree. C. The hot melt adhesive affords a large adhesive bond strength without spoiling the softness and liveliness of the textiles.

REFERENCES:
patent: 3651014 (1972-03-01), Witsiepe
patent: 3784520 (1974-01-01), Hoeschele
patent: 3917743 (1975-11-01), Schroeder
patent: 3932326 (1976-01-01), Hoh et al.
patent: 3959062 (1976-05-01), Hoh et al.

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