Commercial preparations of dry organic substances

Details Commercial preparations of dry organic substances Commercial preparations of dry organic substances

1980-05-23

1981-10-20

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dry dye composition other than mere mixture of two or more...

8543, 8552, 8654, 252 90, 25230121, D06P 6702

Patent

active

042958504

ABSTRACT:
Stable dust-free commercial preparations of organic substances are described, which preparations comprise an organic substance especially a dyestuff or optical brightener in dry powder form enclosed in a covering, particularly in a sack or bag sealed on all sides, made from polyethylene oxide having a molecular weight of more than 200,000 and a thickness of 10 to 80.mu., which covering is soluble in the same medium as the content.

REFERENCES:
patent: 4046507 (1977-09-01), Zweifel et al.
Hill, F. N. et al., Industrial and Engineering Chemistry, 1958, 50, (No. 1), pp. 5-16.
Modern Packaging Encyclopedia, Section 4 (Plastics, Films, Foils), 1971, pp. 138-139.

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