Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1988-04-29
1990-04-24
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
528481, 528503, 526240, 5263077, 34 36, C08F 600
Patent
active
049202022
ABSTRACT:
A method for the production of a hydrophilic polymer having a small residual monomer content from a hydrated gel polymer, which method comprises drying said hydrated gel polymer by contact thereof with a gas containing at least steam and having a dew point in the range of 50.degree. to 100.degree. C. at a temperature in the range of 80.degree. C. to 250.degree. C., and a hydrophilic polymer obtained therefrom.
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Fujiwara Teruaki
Harada Nobuyuki
Hatsuda Takumi
Irie Yoshio
Ishizaki Kunihiko
Behr Omri M.
Nippon Shokubai Kagaku Kogyo & Co., Ltd.
Schofer Joseph L.
Teskin F. M.
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