Abstract:
PURPOSE: To impart remarkable antistaticity and excellent durability to a molded article of a polymer containing sulfonic acid group, without lowering the moldability and physical properties, by treating the molded article with a polyalkylene oxide compound containing reactive group. CONSTITUTION: A molded article made of a polymer containing sulfonic acid group and/or its metallic salt in the molecular chain (preferably a polyester or polyamide having an alkali metal-5-sulfoisophthalate component as a copolymerized component) is treated is treated with a polyalkylene oxide compound having a quaternary ammonium structure. The amount of the sulfonic acid group in the polymer is ≥10 equivalent/ton and preferably ≤500 equivalent/ton. The molded article is preferably fiber or film. COPYRIGHT: (C)1984,JPO&Japio
Abstract:
PURPOSE: To prevent scale formation on the wall of a polymerization vessel and, at the same time, to produce an easily handleable, large-particle size polymer, by using a specified protective colloid in producing title bead polymer by phase inversion suspension polymerization. CONSTITUTION: As a protective colloid is used a reaction product obtained by grafting 1W20wt% α,β-unsaturated polycarboxylic acid (anhydride), e.g., meleic anhydride, onto a monoolefin polymer, MW 750W10,000, e.g., polyethylene wax, or a product obtained by oxidizing the above monoolefin polymer to an acid value of 10W100. Namely, about 0.01W10wt% above protective colloid is dispersed in a hydrophobic solvent (dispersing medium, e.g., hexane,). To this dispersion is added an aqueous solution containing a water-soluble ethylenically unsaturated monomer, e.g., acrylic acid, and a water-soluble radical polymerization initiator. Then, the resulting solution is subjected to phase inversion suspension polymerization. COPYRIGHT: (C)1982,JPO&Japio
Abstract:
PURPOSE:To provide a white paint composition having excellent adhesivity to a non-absorbent polar surface and giving high surface gloss, composed of a (meth) acrylurethane resin having specific structure, a monomer having a polymerizable double bond, a photo-sensitizer, and anatase-type titanium dioxide. CONSTITUTION:A paint composition composed of (A) a (meth)acrylurethane resin having one or more bisphenol skeletons and two or more urethane bonds in the main chain, and terminal (meth)acryloyl groups, and prepared by the reaction of (a) a polyoxyalkylene bisphenol derivative of formula (R is 2-4C alkylene; R is -CH2-, etc.; R is 2-8C aliphatic, aromatic, hydrocarbon etc.; X is halogen, methyl; a is 0-2; m and n are >=1; m+n is 2-10; l is 0-2), (b) a diisocyanate compound, and (c) an OH- containing (meth)acrylate compound, and if necessary, (d) a carboxyl-containing (meth)acrylate, (B) a monomer having a polymerizable double bond and copolymerizable with the terminal unsaturated group of the (A) resin, (C) a photo-sensitizer, and (D) anatase-type TiO2.
Abstract:
PURPOSE:To provide the title composition having excellent adhesivity to a non- adsorbent polar surface, useful as printing ink, paint, etc., and composed of a (meth)acrylic urethane resin having two or more (meth)acryloyl groups in a molecule, a vinyl compound, and a photosensitizer. CONSTITUTION:A composition composed of (A) a (meth)acrylic urethane resin having two or more (meth)acryloyl groups in a molecule and derived from the compound I or II (R is 2-4C alkylne; X is halogen, methyl; a is 1-2; m and n are >=1, m+n is 2-8), (B) a vinyl compound copolymerizable with the terminal unsaturated groups introduced into the resin, and (C) a photosensitizer such as benzophenone, benzoin, etc. The weight ratio of A:B is 20:80-95:5, and the amount of (C) in the whole composition is 0.5-20 wt%.
Abstract:
PURPOSE:A specific polymer-blend composition containing a small amount of a polyhydric alcohol and Sb2O3 previously added is fabricated into shaped articles resistant to hydrolysis.
Abstract:
PURPOSE:To produce a highly water-absorptive resin excellent in salt resistance and rate of water absorption, by adding a hydroperoxide to a hydrophilic polymer obtained by polymerizing a specified polymerizable monomer with the aid of a specified polymerization initiator and crosslinking the polymer after adjusting the water content. CONSTITUTION:A hydroperoxide (e.g., hydrogen peroxide) is added to a hydrophilic polymer obtained by polymerizing a polymerizable monomer containing a carboxyl or/and carboxylate group [e.g., (meth)acrylic acid] with the aid of a polymerization initiator comprising a persulfate (e.g., sodium persulfate), and its water content is adjusted to 10-40wt%. This polymer is crosslinked with a crosslinking agent having at least two functional groups reactive with the carboxyl or/and carboxylate groups (e.g., ethylene glycol diglycidyl ether) to produce a highly water-absorptive polymer. This polymer can show markedly excellent salt resistance and rate of water absorption and find wide applications including various sanitary materials.
Abstract:
PURPOSE:To obtain a highly water-absorptive resin excellent in salt resistance and rate of water absorption, by adjusting the water content of a hydrophilic polymer obtained by polymerising a specified polymerizable monomer with the aid of a specified polymerization initiator to a value within a specified range and crosslinking the polymer with a specified crosslinking agent. CONSTITUTION:A hydrophilic polymer is produced by polymerizing a polymerizable monomer having a carboxyl or/and carboxylate group [e.g., (meth)acrylic acid] with the aid of a polymerization initiator comprising a combination of a persulfate (e.g., sodium persulfate) with a hydroperoxide (e.g., hydrogen peroxide). After the water content of this polymer is adjusted to 10-40wt%, this polymer is crosslinked with a crosslinking agent having at least two functional groups reactive with the carboxyl and/or carboxylate groups (e.g., ethylene glycol diglycidyl ether) to produce a highly water-absorptive resin. By the use of the above combination as a polymerization initiator, the produced resin can show excellent salt resistance and rate of water absorption and find wide applications including various sanitary materials.