Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1995-06-07
1997-04-29
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 63, 524845, 524846, 604369, C08J 928
Patent
active
056249675
ABSTRACT:
A process for producing a water-absorbing resin, which comprises polymerizing (D) an aqueous solution comprising (A) at least one monomer component selected from the group consisting of an unsaturated carboxylic acid and salts thereof; (B) a compound having two or more unsaturated groups in a molecule; and (C) a compound having two or more functional groups which are capable of reacting with carboxyl groups in a molecule, the polymerization being conducted in such a manner that the following conditions (a) to (c) are simultaneously satisfied: (a) the molar ratio (B)/(C) being in the range of from 2.times.10.sup.-3 to 300, (b) the polymerization being initiated by a redox polymerization initiator, and (c) the maximum reaction temperature being in the range of from 60.degree. to 100.degree. C, and a water-absorbing resin having a degree of reduction in absorption magnification of from 1 to 16, and n absorption magnification under pressure of from 20 to 40.
REFERENCES:
patent: Re32649 (1988-04-01), Brandt et al.
patent: 4985514 (1991-01-01), Kimura et al.
patent: 5147343 (1992-09-01), Kellenberger
patent: 5213893 (1993-05-01), Kobayashi et al.
Hatsuda Takumi
Hitomi Kazuhisa
Shimomura Tadao
Foelak Morton
Nippon Shokubai Co. , Ltd.
LandOfFree
Water-absorbing resin and process for producing same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Water-absorbing resin and process for producing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water-absorbing resin and process for producing same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-706251