Moisture-absorbent compositions and molded items

Details Moisture-absorbent compositions and molded items Moisture-absorbent compositions and molded items

1990-05-22

1992-01-07

Stoll, Robert L.

Compositions

Humidostatic, water removive, bindive, or emissive

524423, C09K 300

Patent

active

050789090

ABSTRACT:
A moisture-absorbent composition contains 100 parts by weight of thermoplastic resin and 5 to 400 parts by weight of at least one among the group consisting of magnesium sulfate (represented generally by MgSO.sub.4.NH.sub.2 O (O.ltoreq.n.ltoreq.3), aluminum oxide, calcium oxide, silicon oxide, zeolite, barium oxide, and cobalt chloride. A moisture-absorbent molded item is formed of this composition in a shape of a film, a sheet, a plate, a bag, a pellet, or a container. The molded item may be used as a cushion insert, etc. which requires moisture absorption properties. A moisture-absorbent composition and an molded item made of the composition are provided with an indicator function, by specifying the amount of anhydrous cobalt chloride.

REFERENCES:
patent: 3832254 (1974-08-01), Bowser et al.
patent: 3833406 (1974-09-01), White
patent: 4029830 (1977-06-01), Yamamoto et al.
patent: 4317742 (1982-03-01), Yamaji et al.
patent: 4380501 (1983-04-01), Wojtowicz et al.
patent: 4772422 (1988-09-01), Hijikata et al.
patent: 4792484 (1988-12-01), Moritani
patent: 4992510 (1991-02-01), Sugimori et al.
Patent Abstracts of Japan, vol. 11, No. 69 (C-407) [2516], Mar. 3, 1987.
Patent Abstracts of Japan, vol. 6, No. 191 (C-127) [1069], Sep. 30, 1982.

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