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AssigneeNippon Shokubai Co., Ltd.
InventorsKoji Miyake, Takumi Hatsuda, Sachio Fujita, Takashi Nishigaki, Kunihiko Ishizaki, Katsuhiro Kajikawa
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A continuous manufacturing method of a water-absorbent polymer by continuously performing a polymerization of a hydrophilic monomer using a solution containing a hydrophilic monomer, includes at least one of the following steps (A) to (D): (A) introducing an inert gas into the solution in a continuous manner before subjecting the solution to a polymerization reaction, and subsequently removing the inert gas from the solution; (B) supplying the solution to a polymerization process, and washing out the solution with water supplied before, at, or after a timing of supplying the solution to the polymerization process; (C) detecting reaction temperatures of a polymerization reaction in non-contact manner at a plurality of points different distances away from a point where a solution is supplied; and (D) supplying water to a water-containing gel and/or transport means when transporting the water-containing gel of the water-absorbent polymer obtained in or after the polymerization reaction.
A continuous manufacturing method of a water-absorbent polymer by continuously performing a polymerization of a hydrophilic monomer using a solution containing a hydrophilic monomer, comprising at least one of the following steps (A) to (D):
A continuous manufacturing method of a water-absorbent polymer by continuously performing a polymerization of a hydrophilic monomer using a solution containing a hydrophilic monomer, comprising the step of:
A continuous manufacturing method of a water-absorbent polymer by continuously performing a polymerization of a hydrophilic monomer using a solution containing a hydrophilic monomer, comprising the step of:
A continuous manufacturing method of a water-absorbent polymer by continuously performing a polymerization of a hydrophilic monomer using a solution containing a hydrophilic monomer, comprising the step of:
A continuous manufacturing method of a water-absorbent polymer by continuously performing a polymerization of a hydrophilic monomer using a solution containing a hydrophilic monomer, comprising the step of:
Dependencies are inferred from the claim text.