Thermoplastic copolyesters, processes for their preparation and

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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260860, 528177, 528178, 528194, 528273, 528300, 528302, C08G 6312, C08G 6318

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active

041549180

ABSTRACT:
Thermoplastic copolyesters which have a minimum relative viscosity of 1.7 and contain (a) 35-47.5 mol % of units of terephthalic acid, (b) 15-2.5 mol % of units of isophthalic acid, (c) 10-30 mol % of units of ethylene glycol and (d) 40-20 mol % of units of diethylene glycol, it being possible for up to 9 mol % of the units of ethylene glycol to be replaced by units of a bisphenol dihydroxyalkyl ether, are very suitable as hot-melt adhesives.

REFERENCES:
patent: 3216970 (1965-11-01), Conix
patent: 3669921 (1972-06-01), Droke et al.
patent: 3682863 (1972-08-01), McHale
patent: 3728416 (1973-04-01), Akin
patent: 3926920 (1975-12-01), Georgoudis et al.
patent: 4024111 (1977-05-01), Thomas et al.
patent: 4071499 (1978-01-01), Stackman et al.

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