Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1997-10-07
2000-08-29
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 72, C08J 928
Patent
active
061109843
ABSTRACT:
The present invention provides a water-swellable crosslinked polymer that displays high absorption capacity when put under an increased pressure in a state combined with a fibrous base matter. The water-swellable crosslinked polymer has a total pore volume of 60 v/v % or more relative to the entire amount of the absorption of a physiological salt solution into the polymer with regard to pores with a pore size of 51-270 .ANG. when swollen with the physiological salt solution, or the polymer has a total pore volume of 80 v/v % or more relative to the entire amount of the absorption of ion-exchanged water into the polymer with regard to pores with a pore size of 51-270 .ANG. when swollen with the ion-exchanged water.
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Fujimaru Hirotama
Harada Nobuyuki
Yonemura Koichi
Foelak Morton
Nippon Shokubai Co. , Ltd.
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