Abstract: A microorganism cells-immobilizing granular carrier and its manufacturing system.Said microorganism cells-immobilizing granular carrier, which has a specific gravity of 1.00 to 1.20, and which has a contact angle of 2.degree. to 30.degree. formed between the carrier surface and n-paraffin, and which has a surface suitable for the attachment of a microorganism, is obtained by dripping a liquid composition containing a hydrophilic photo-curable resin having (a) at least two ethylenically-unsaturated bonds in one molecule, (b) photopolymerization initiator, and (c) water-soluble macromolecular polysaccharide capable of gelatinizing through contact with alkaline metal ions or polyvalent metal ions, into an aqueous medium containing alkaline metal ions or polyvalent metal ions to gelatinize the composition; and irradiating the composition with ultraviolet radiation so as to harden said composition.

Abstract: The present invention provides a soil preventing coating forming composition which consists essentially of a resin having at least two acid anhydride groups in the molecule on the average, the acid anhydride groups being represented by the formula ##STR1## wherein R is a C.sub.1-40 monovalent hydrocarbon group or a monovalent chain polysiloxane group represented by the formula ##STR2## wherein R.sub.1 and R.sub.2 are the same or different and are each alkyl, cycloalkyl, aryl, aralkyl or ##STR3## group, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are the same or different and are each alkyl, cycloalkyl, aryl or aralkyl, n is an integer of 1 to 6, m is an integer of 0 or 1, p is an integer of 2 to 50, and q is an integer of 0 to 50.

Abstract: A non-toxic antifouling coating composition containing 50 to 99% by weight as the resin solid content of (A) a reaction-curable silicone resin composition and 1 to 50% by weight a solid content of (B) a silicone resin having an average molecular weight of 250 to 30,000, a viscosity of 20 to 50,000 centistokes and alkoxy group at its molecular terminal, and represented by the general formula (I): ##EQU1## where R is hydrogen atom, alkyl group having 1-10 carbon atoms, aryl group or aralkyl group, R.sup.1 is bivalent aliphatic hydrocarbon group having 1-10 carbon atoms, which may be bonded directly or through ether group, ester group or --NH--group, R.sup.2 is lower alkyl group having 1-6 carbon atoms, X and Y are represented respectively as 0.01.ltoreq.X<4.0, 0.01.ltoreq.Y<4.0 and 0.02.ltoreq.X+Y<4.

Abstract: A water-repellant film-forming composition comprisinga mixture of(a) a (co)polymer of 5 to 100% by weight of a specific fluoroalkyl group-containing (meth)acrylic monomer and 0 to 95% by weight of an unsaturated monomer co-polymerizable with the fluoroalkyl group-containing (meth)acrylic monomer, and(b) a copolymer of 0.1 to 75% by weight of a specific silicon-containing polymerizable unsaturated monomer and 25 to 99.9% by weight of an unsaturated monomer copolymerizalbe with the silicon-containing polymerizable unsaturated monomer, andfine silica particles having an average particle diameter of not more than 5 micrometers, in specified amounts.

Abstract: An antifouling paint composition comprising as a film-forming component a vinyl-type copolymer obtained by copolymerization of(A) 1 to 50% by weight of a specific polymerizable unsaturated polysiloxane compound,(B) 0 to 30% by weight of a specific polymerizable unsaturated alkoxysilane compound, and(C) 20 to 99% by weight of a polymerizable unsaturated vinyl monomer other than the compounds (A) and (B) above.

Abstract: Disclosed is an antifouling coating which contains a phosphorus nitride compound and/or a halogenated phosphorus nitride compound and a coating resin as the major components, and which is non-toxic and has excellent long-term antifouling properties when coated on underwater substrates, for example, underwater structures such as ships, fishing nets, and the like.

Abstract: The present invention provides: a composition for use in preventing the formation of ice comprising (A) organopolysiloxane, (B) alkali metal compound and (C) liquid or solid paraffin; a method for preventing the formation of ice by applying the composition to the surface of an object; and another method for preventing the formation of ice by applying a primer containing a silane coupling agent to the surface of an object and applying the composition to the primer coat formed.

Abstract: A self-curing epoxy resin composition is, herein, disclosed produced by irradiating with an electron beam a mixture of 85 to 97 wt % of an epoxy resin and 3 to 15 wt % of a quaternary alkyl ammonium salt of .alpha.,.beta.-unsaturated carboxylic acid or a neutralized product of an .alpha.,.beta.-unsaturated carboxylic acid and a tertiary amine.

Abstract: A one-pack high solid coating composition consisting essentially of (I) 100 parts by weight of an acrylic resin which is a copolymer having a glass transition temperature of -21.degree. to -50.degree. C. and a hydroxyl number of 40 to 280 and being prepared from (a) one or more members selected from hydroxyalkyl acrylates and methacrylates of the general formula ##STR1## wherein R is a hydrogen atom or a methyl group and R.sub.1 is a divalent alkyl group having 2 to 5 carbon atoms, and (b) one or more members selected from alkyl acrylates and methacrylates of the general formula ##STR2## wherein R is as defined above and R.sub.2 is a monovalent alkyl group having 1 to 12 carbon atoms, and glycidyl acrylates and methacrylates of the general formula ##STR3## wherein R is as defined above and R.sub.3 is a divalent alkyl group having 1 to 5 carbon atoms, (II) 20 to 160 parts by weight of an amino-formaldehyde resin etherified with a monohydric alcohol having 1 to 4 carbon atoms, and (III) 0.

Abstract: A low temperature curing high solid coating composition which comprises: (I) acrylic resin having a glass transition temperature of 20.degree. to -50.degree. C. and a hydroxyl value of 40 to 280, which is obtained by copolymerizing the monomer mixture comprising (a) acrylic ester and/or methacrylic ester, and if necessary, (b) acrylic acid or methacrylic acid, (II) amino-formaldehyde resin which is etherified with a monohydric alcohol, (III) an acid catalyst, and if necessary, (IV) cellulose derivatives and/or (V) metallic coordination compounds of titanium, zirconium and/or aluminium.The coating composition of the invention is characterized in that it has a high solid content and is cured at a low temperature and the obtained coating film has quite excellent properties of durability, hardness and chemical resistance.