Copolyether ester hot-melt masses

Details Copolyether ester hot-melt masses Copolyether ester hot-melt masses

1997-08-12

1998-06-16

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528301, 528308, 5283086, C08G 6316

Patent

active

057672261

ABSTRACT:
The invention relates to novel hot-melt masses consisting of a statistically built-up copolyether ester based on terephthalic acid in a mixture of aliphatic diols. Terephthalic acid is used as the single acid component and its molar amount, relative to the total amount of acid, is 100 molar %. A combination of butane diol, triethylene glycol and polyethylene glycol is present as diol component. The molar amount of butane diol is less than 80 molar %, the amount of triethylene glycol is between 15 and 60 molar % and at least 2 and at the most 10 molar % of a higher-molecular polyethylene glycol component with a molar mass of 600-4000 g/mole is used, relative to the total acid amount and total diol amount of 100 molar % in each instance. The melting point of the copolyether ester adhesive masses is between 90.degree. and 180.degree. C. The copolyetherester hot-melt masses can be used in the hot-melt method and for other known powder coating methods.

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