Powdery absorbing material for aqueous liquids based on water-sw

Details Powdery absorbing material for aqueous liquids based on water-sw Powdery absorbing material for aqueous liquids based on water-sw

1992-05-18

1993-07-20

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253297, 525380, 525384, 525386, 5263171, 528332, C08F 832, C08F 2006

Patent

active

052294668

ABSTRACT:
The present invention relates to a powdery absorbing material for aqueous liquids based on a water-swellable powdery polymer having at least 0.2 equivalents carboxyl groups per 100 parts by weight which are neutralized by 50 to 99, advantageously by at least 80 mole %. The powdery absorbing material is obtained by treating the water-swellable carboxyl-groups-containing polymer with a solution of an N-(hydroxyalkyl).beta.-(meth)-alanine ester or with the polycondensation products thereof. As a solvent for the powdery absorbing material, water is used which either contains water-miscible organic diluents which evaporate on heating, or non-evaporative water-miscible organic diluents, i.e., diluents remaining in the polymer.

REFERENCES:
patent: 4666983 (1987-05-01), Tsubakimoto

Affiliated with

Also associated with

Rating

Powdery absorbing material for aqueous liquids based on water-sw does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Powdery absorbing material for aqueous liquids based on water-sw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Powdery absorbing material for aqueous liquids based on water-sw will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1761299