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294results about How to "Easy and inexpensive to produce" patented technology

Process for continuous production of water-absorbent resin product

There is disclosed a process for continuous production of a water-absorbent resin product by which the water-absorbent resin product having high properties can continuously be produced easily and inexpensively with stable constant quality. In addition, there is disclosed a water-absorbent resin product having high properties and being stable in quality. The process comprises the following steps of: (A) measuring a water-absorbent resin by its predetermined property and / or its predetermined component content, wherein the water-absorbent resin comes being continuously produced via a classification step and / or a surface-modifying step; (B) separating a predetermined amount of water-absorbent resin (a) from the water-absorbent resin that comes being continuously produced, wherein the water-absorbent resin (a) is a water-absorbent resin which displays not less than a definite value and / or a water-absorbent resin which displays not more than a definite value as to the predetermined property and / or the predetermined component content in accordance with results of the aforementioned measurement; and (C) mixing at least a portion of the aforementioned separated predetermined amount of water-absorbent resin (a) into a water-absorbent resin that comes being continuously produced via a classification step and / or a surface-modifying step on the same or another production line.
Owner:NIPPON SHOKUBAI CO LTD

Polymerizable compound, polymerizable composition, polymer, and optically anisotropic body

The present invention provides a polymerizable compound represented by the following formula (I), a polymerizable composition that includes the polymerizable compound and an initiator, a polymer obtained by polymerizing the polymerizable compound or the polymerizable composition, and an optically anisotropic article that includes the polymer. The invention makes it possible to provide a polymerizable compound, a polymerizable composition, and a polymer that have a practical low melting point, exhibit an excellent solubility in a general-purpose solvent, can be produced at low cost, and may produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band, and an optically anisotropic article. [In formula: Q1 to Q4 represent hydrogen atoms or the like; X represents a C6-C12 divalent aromatic group or the like; Ax and Ay represent groups represented by the following formula (II); n represents 0 or 1; * represents a bonding position; Y1 to Y6 represent a single bond, —O—, —O—C(═O)—, —C(═O)—O— or the like; G1 and G2 represent divalent C1-C20 aliphatic groups or the like; Z1 and Z2 represent C2-C10 alkenyl groups or the like; A1 represents a trivalent aromatic group or the like; and A2 and A3 represent divalent C6-C30 aromatic groups or the like.]
Owner:ZEON CORP
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