Process for preparing water-absorbing resin

Details Process for preparing water-absorbing resin Process for preparing water-absorbing resin

1986-06-16

1988-07-19

Lilling, Herbert J.

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...

524430, 524437, 524517, 524547, 525373, 525374, 525387, C08G 8102, C08K 300, C08L 3300, C08L 5102

Patent

active

047586176

ABSTRACT:
This invention provides a process for preparing a water-absorbing resin which comprises the steps of mixing powder of an inorganic inactive substance with a water-absorbing resin having carboxylate-containing monomer units, and adding water and a high molecular-weight cross-linking agent to the mixture to perform cross-linking reaction and evaporation of water, the cross-linking agent being selected from a specified copolymer (1) and a specified mixture of copolymers (2), and also provides a water-absorbing resin prepared by the process.
The process of the invention gives water-absorbing resins improved not only in water-absorbing ability, rate of water absorption, gel strength after water absorption and unlikelihood of affording a wetty feeling after water absorption but also in capability of retaining water under pressure.

REFERENCES:
patent: 4552938 (1985-11-01), Mikita et al.
patent: 4587308 (1986-05-01), Makita et al.
patent: 4647617 (1987-03-01), Saotome

Affiliated with

Also associated with

Rating

Process for preparing water-absorbing resin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing water-absorbing resin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing water-absorbing resin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-597895