Process for preparing a hot-melt adhesive composition, a hot-mel

Details Process for preparing a hot-melt adhesive composition, a hot-mel Process for preparing a hot-melt adhesive composition, a hot-mel

1994-03-29

1995-10-03

Szekely, Peter A.

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106210, C08L 304, C08L 310, C08L 302

Patent

active

054548624

ABSTRACT:
It has been found that a hot-melt adhesive composition can be prepared by mixing a starch product, urea and optionally water are mixed with each other to obtain a homogeneous composition, the starch product/urea weight ratio being selected within the range of 3/1-3/97 and the amount of water present being 3-20 wt. %, based on the amount of starch product +urea, and which mixing may or may not be carried out with heating, but an oxidative treatment is omitted. Moreover, a hot-melt adhesive composition has been found which essentially comprises the above components in the above weight ratio and amount. The composition obtained according to the invention is solid at room temperature but becomes fluid at elevated temperature and can particularly be used in the manufacture of packagings and nonwoven articles.

REFERENCES:
patent: 2215846 (1940-09-01), Bauer
patent: 2378378 (1945-06-01), Bauer
patent: 3351480 (1967-11-01), Mentzer
patent: 3725324 (1973-04-01), Cummisford
patent: 4131581 (1978-12-01), Coker
patent: 4155884 (1979-05-01), Hughes
patent: 4157318 (1979-06-01), Sadle et al.
patent: 4804414 (1989-02-01), Gleason
patent: 5316578 (1994-05-01), Buehler et al.

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