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Nobuyuki Harada

Publications -  146
Citations -  2640

Nobuyuki Harada is an academic researcher. The author has contributed to research in topics: Monomer & Polymerization. The author has an hindex of 26, co-authored 146 publications receiving 2640 citations.

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Patent

Water-absorbing agent and process for producing the same

TL;DR: In this article, a process for producing a water-absorbing agent at low temperature in a short time, wherein the water absorbing agent has excellent balance between the absorption capacity without load and the absorbing capacity under a load, high fluidity under a hygroscopic atmosphere, and excellent safety, can be obtained by using an oxetane compound and/or an imidazolidinone compound for a water absorbent resin.
Patent

Water-absorbent resin and method for production thereof

TL;DR: In this paper, a method for the production of a water-absorbent resin capable of fast water absorption is disclosed which comprises the steps of dispersing bubbles of an inert gas in an aqueous monomer solution.
Patent

Process for preparing absorbent resin

TL;DR: In this paper, a process for preparing an absorbent resin includes the steps of: preparing a first crosslinking agent (A) including at least two polymerizable unsaturated bonds; preparing a second cross-link agent (B) including a main component at least 90 percent by weight, wherein the ester is composed of a polyhydroxy alcohol (C) having not more than six carbon atoms and at least three hydroxy groups, and an unsaturated carboxylic acid (D); and a molecule weight ratio of the main component to a standard compound (E
Patent

Water-absorbent agent, method for production thereof, and water-absorbent composition

TL;DR: In this article, a method for the production of a water-absorbent agent comprises mixing an absorbent resin containing a carboxyl group with an additive soluble in the aqueous solution of at least one member selected from the group consisting of inorganic acids, organic acids, and polyamino acids.
Patent

Water absorbent matter and method for producing it as well as water absorbent and method for producing it

TL;DR: In this article, a water-absorbent resin particle is set on the cellulose fiber by a cationic high-molecular compound in the presence of water.