High-concentration starch adhesive

Details High-concentration starch adhesive High-concentration starch adhesive

1989-12-28

1993-01-26

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106210, 106213, 156336, 156328, 524 47, C08L 300, C08J 302, C09D 400, C09D10100

Patent

active

051819597

ABSTRACT:
The present invention relates to a high-concentration starch adhesive prepared by treating a starch slurry at a temperature of 100.degree. C. or above to form a gelatinized solution and suspending an ungelatinized starch in the gelatinized solution. According to the present invention, the viscosity of the starch adhesive can be kept stable over a long period of time; the problems such as warp due to the expansion and contraction, by the absorption of water, of the material to be adhered, can be solved; and the quantity of heat necessitated in the adhesion step can be much reduced.

REFERENCES:
patent: 3361585 (1968-01-01), Armour et al.
patent: 4040862 (1977-08-01), Voigt et al.
patent: 4073756 (1978-02-01), Yotsuyanagi et al.
patent: 4157318 (1979-06-01), Sadle et al.
patent: 4329181 (1982-05-01), Chiu et al.
patent: 4343654 (1982-08-01), Wave et al.
patent: 4814039 (1989-03-01), Willging
patent: 4826719 (1989-05-01), Murdock et al.
patent: 4855354 (1989-08-01), Mohler et al.

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