C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/510, 402/522
C08F 6/12 (2006.01) C08F 20/34 (2006.01) C08F 20/56 (2006.01)
Patent
CA 1064195
Abstract of Disclosure: The invention relates to an improved process for removing water, under elevated temperature, from aqueous gel of water soluble polymer, such as polymer or copolymer of acrylamide and/or quaternary ammonium salts of dialkylaminoamlkylmethacrylate, to prevent from the deterioration of polymer properties. The process is accomplished by addition of polyhydric phenols, benzoquinones or derivatives thereof prior to removal of water.
266583
Matsumoto Susumu
Tago Atsuo
Yamanaka Ryoichi
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