Dust control of absorbent polymers

Details Dust control of absorbent polymers Dust control of absorbent polymers

1996-02-16

2000-07-18

Henderson, Christopher

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524388, 524555, 524556, C08K 501, C08K 5101, C08K 505

Patent

active

060908750

ABSTRACT:
The subject invention provides water-swellable polymer compositions having reduced dusting tendencies, i.e., reduced amounts of unassociated dust having a maximum diameter less than or equal to 10 microns and/or the tendency to generate reduced amounts of unassociated dust having a maximum diameter less than or equal to 10 microns upon attrition and a process for preparing such compositions. Hydrophobic dedusting agents are used to achieve the above while substantially maintaining or increasing the surface tension of an aqueous fluid in equilibrium with the polymer and air.

REFERENCES:
patent: 4080351 (1978-03-01), Zalzal
patent: 4108780 (1978-08-01), Thomas
patent: 5597873 (1997-01-01), Chambers et al.
patent: 5681878 (1997-10-01), Klotzsche et al.
patent: 5728742 (1998-03-01), Staples

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