Process for the preparation of a highly water absorptive resin f

Details Process for the preparation of a highly water absorptive resin f Process for the preparation of a highly water absorptive resin f

1989-05-09

1991-07-16

Nielsen, Earl A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523412, 525119, 524493, C08L 6300

Patent

active

050326287

ABSTRACT:
A method for the production of a highly water absorptive resin comprises the steps of neutralizing acrylic acid with alkali metal hydroxide to form an alkali metal acrylate; mixing the alkali metal acrylate, methacrylic acid, a polymerization initiator, and a first crosslinking agent; suspending and dispersing the mixture in an aqueous medium to for an initial mixture; polymerizing the initial mixture to produce a polymerized intermediate, and separating the moisture from the polymerized intermediate by azeotropic distillation to reduce the water content to 15-35% by weight; adding a second crosslinking agent, said second crosslinking agent having two epoxy radicals; and mixing "Syloid" of silicate, to form a highly water absorptive resin.

REFERENCES:
patent: 3926891 (1975-12-01), Gross et al.
patent: 3966679 (1976-06-01), Gross
patent: 4061846 (1977-12-01), Gross et al.
patent: 4076663 (1978-02-01), Masuda et al.
patent: 4093776 (1978-06-01), Aoki et al.
patent: 4340706 (1982-07-01), Obayashi et al.
patent: 4351922 (1982-09-01), Yoshida et al.
patent: 4446261 (1984-01-01), Yamasaki et al.
patent: 4497930 (1985-02-01), Yamasaki et al.
patent: 4507438 (1985-03-01), Obayashi et al.
patent: 4541871 (1985-09-01), Obayashi et al.
patent: 4666975 (1987-05-01), Yamasaki et al.
patent: 4666983 (1987-05-01), Tsubakimoto et al.
patent: 4727097 (1988-02-01), Kobayashi et al.
patent: 4806578 (1989-02-01), Kobayashi et al.

Affiliated with

Also associated with

Rating

Process for the preparation of a highly water absorptive resin f 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 the preparation of a highly water absorptive resin f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of a highly water absorptive resin f will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-132331