Process for preparing an absorbent resin crosslinked with a mixt

Details Process for preparing an absorbent resin crosslinked with a mixt Process for preparing an absorbent resin crosslinked with a mixt

1994-06-17

1996-11-12

Zitomer, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5253302, 5263184, 52631843, 526320, 526321, 5263231, 5263232, 526930, C08F23622

Patent

active

055741215

ABSTRACT:
A process for preparing an absorbent resin includes the steps of: preparing a first crosslinking agent (A) including at least two polymerizable unsaturated bonds; preparing a second crosslinking agent (B) including at least two polymerizable unsaturated bonds and hydroxyl groups; preparing a crosslinking agent including (A) and (B) with a ratio of (A) to (B) ranging from 95/5 to 50/50; and polymerizing a hydrophilic unsaturated monomer having at least one carboxyl group using the crosslinking agent. The crosslinking agent includes a crosslinking agent which includes a main component at least 90 percent by weight, the main component being an ester having at least two polymerizable unsaturated bonds, wherein the ester is composed of a polyhydroxy alcohol (C) having not more than six carbon atoms and at least three hydroxy groups, and an unsaturated carboxylic acid (D); and a molecular weight ratio of the main component to a standard compound (E) is in the range of from 0.7/1 to less than 1.3/1, (E) being an ester composed of (C) that composes the main component, and (D) that composes the main component, in which all the hydroxy groups in (C) are ester-linked with (D).

REFERENCES:
patent: 4076663 (1978-02-01), Masuda
patent: 4286082 (1981-08-01), Tsubakimoto et al.
patent: 4377661 (1983-03-01), Wright
patent: 4654039 (1987-03-01), Brandt
patent: 4833222 (1989-05-01), Sidall et al.
patent: 4920187 (1990-04-01), Kashihara

Affiliated with

Also associated with

Rating

Process for preparing an absorbent resin crosslinked with a mixt 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 an absorbent resin crosslinked with a mixt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing an absorbent resin crosslinked with a mixt will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-563393