Abstract: The present invention provides an additive for a hair cosmetic preparation and a hair cosmetic preparation containing the additive that can give a supple feel to the finished hair. The additive for a hair cosmetic preparation contains a graft copolymer obtainable by graft-copolymerizing a cationic water-soluble monomer and a nonionic water-soluble monomer in an aqueous solution containing either one or both of a natural polymer and a natural polymer derivative that have an OH group.

Abstract: The present invention provides an additive for a hair cosmetic preparation and a hair cosmetic preparation containing the additive that can give a supple feel to the finished hair. The additive for a hair cosmetic preparation contains a graft copolymer obtainable by graft-copolymerizing a cationic water-soluble monomer and a nonionic water-soluble monomer in an aqueous solution containing either one or both of a natural polymer and a natural polymer derivative that have an OH group.

Abstract: A process for producing a water-soluble polymer dispersion comprising polymerizing water-soluble monomers having double bonds in an aqueous salt solution that dissolves the monomers but does not dissolve the formed polymer while stirring in the presence of a dispersant composed of a polymer electrolyte soluble in this aqueous salt solution to obtain fine polymer particles dispersed in the aqueous salt solution, characterized by adding at least one viscosity-increase suppressor selected from the group consisting of: (A) a polyvalent carboxylic acid or a salt thereof, (B) a polyvalent phenol, (C) a cyclic compound containing a hydroxyl group and a carboxyl group or a salt thereof, (D) gluconic acid or a salt thereof, (E) a reaction product obtained by reacting methoxyhydroquinone and/or (meth)acrylic cationic monomer with a compound that generates radicals in an oxidizing atmosphere, (F) a reaction product obtained by reacting (meth)acrylic cationic polymer with a compound that generates radicals in an oxidizin

Abstract: A storage stable, flowable aqueous dispersion of an amphoteric water-soluble polymer with good handling as well as a method of manufacturing the same are provided. Such an aqueous dispersion can be effectively used for flocculating and/or dehydrating sludge, or for separating and treating oil-containing industrial waste water, as a drainage aid, a retention aid, or recovering substances from white water in the papermaking process. The aqueous dispersion of an amphoteric water-soluble polymer is obtained by polymerizing a mixture of monomers comprising a specific cationic monomer and an anionic monomer as essential components wish stirring in an aqueous salt solution incapable of dissolving the produced polymer and in the presence of a polymer electrolyte dispersant soluble in said aqueous salt solution.

Abstract: A water-soluble cationic (co)polymer dispersion prepared by the polymerization of a specified cationic quaternary monomer, which is obtained by quaternization by use of an alkyl halide, optionally with another cationic monomer and/or (meth)acrylamide, the polymerization being carried out in a salt solution which does not dissolve the resulting (co)polymer, and in the presence of a specific cationic polymer dispersant which is soluble in the salt solution, and its use as a flocculant or a paper chemical are provided.

Abstract: An electrophoresis separation layer is produced which comprises a polyacrylamide gel which remains stable even when stored for a long time and is available for analyzing substances of an extremely wide molecular weight range in electrophoresis for determining molecular weight. The electrophoresis separation layer of the present invention includes a polyacrylamide gel with an aqueous solution containing an amine of a specific pH value, an ampholyte and an acid at a specific ratio as an electrolytic solution in the gel. This separation layer can be produced by lowering the pH value of the electrolytic solution in the polyacrylamide gel to such an extent as not to cause any hydrolysis of amide while achieving a suitable potential gradient distribution in the gel during the electrophoresis.

Abstract: The present invention relates to the preparation of a dispersion wherein a copolymer comprising an acrylic monomer containing a dialkylbenzylammonium group is dispersed in an aqueous solution of a salt as fine particle. Two cationic polymers are used in the polymerization of the above monomer in the aqueous solution of a salt. One of the cationic polymers is a (co)polymer comprising an acrylic monomer containing a trialkylammonium group which is soluble both in the aqueous solution of a salt and in water, while the other thereof is a copolymer comprising an acrylic monomer containing a dialkylbenzylammonium group which is soluble in water, but insoluble in the aqueous solution of a salt. The above aqueous solution of a salt is an aqueous solution of a polyvalent anion salt such as sulfate or phosphate. A dispersion of a water-soluble cationic polymer can be prepared by dissolving the above monomer in the aqueous solution and carrying out the polymerization in the presence of the above two polymers.

Abstract: An improved semiconductor integrated circuit included in electrical equipment for recharging and discharging a load capacitor with alternating current and which includes differentiating circuits inherently formed in the integrated circuit and whose devices are formed on a P-type substrate and are isolated from each other by PN junction isolation. The substrate of the integrated circuit is electrically isolated from any grounding electrodes and is connected to a negative voltage source.

Abstract: A process for preparing a water-soluble polymer dispersion is here provided which is characterized by polymerizing water-soluble monomers of 5 to 1000 mole % of a cationic monomer represented by formula (I) defined herein, 0 to 50 mole % of another cationic monomer represented by formula (II) defined herein and 0 to 95 mole % of (meth)acrylamide in the presence of 1 to 10% by weight of an organic high-molecular multivalent cation based on the total weight of the monomers in a multivalent anionic salt aqueous solution having a concentration of 15% by weight or more.

Abstract: Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutarlized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B); and (C) a water miscible or a water soluble polyvinyl monomer in an amount of 0.001 to 0.3 weight percent based on the total weight of (A) and (B). In accordance with one embodiment of the invention, the concentration of monomers (A) plus (B) should be at least 70 percent by weight of the polymerization mixture of (A) plus (B) plus (C) to achieve a substantially dry polymer (less than 15 weight percent water) when polymerization is completed by utilizing the exothermic heat of polymerization and cross-linking to drive off water without the need for additional heating to obtain a dry solid.

Abstract: Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B); and (C) a water miscible or a water soluble polyvinyl monomer in an amount of 0.001 to 0.3 weight percent based on the total weight of (A) and (B). In accordance with one embodiment of the invention, the concentration of monomers (A) plus (B) should be at least 70 percent by weight of the polymerization mixture of (A) plus (B) plus (C) to achieve a substantially dry polymer (less than 15 weight percent water) when polymerization is completed by utilizing the exothermic heat of polymerization and cross-linking to drive off water without the need for additional heating to obtain a dry solid.

Abstract: Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B); and (C) a water miscible or a water soluble polyvinyl monomer in an amount of 0.001 to 0.3 weight percent based on the total weight of (A) and (B). In accordance with one embodiment of the invention, the concentration of monomers (A) plus (B) should be at least 70 percent by weight of the polymerization mixture of (A) plus (B) plus (C) to achieve a substantially dry polymer (less than 15 weight percent water) when polymerization is completed by utilizing the exothermic heat of polymerization and cross-linking to drive off water without the need for additional heating to obtain a dry solid.

Abstract: Novel cationic polymer flocculants are prepared by polycondensation of an epihalohydrin and mixed Mannich reaction products of a monohydric phenol and bisphenol with formaldehyde and dialkylamine. The flocculants are stable in aqueous solutions and show an excellent effect in purification of industrial effluents.

Abstract: New cationic flocculants are prepared by polycondensation of an epihalohydrin and Mannich reaction products of phenol, formaldehyde, and dialkylamine. The flocculants are useful for flocculation of various kinds of suspension such as various industrial waste waters, pulp slurry in paper making and the like.