Abstract: The present invention provides a method of forming a composite coating film which makes it possible to attain both appearance and workability in a high-humidity environment.

Abstract: The present invention provides a method of forming a composite coating film which makes it possible to attain both appearance and workability in a high-humidity environment. The method of forming a composite coating film according to the present invention comprises applying a water-based base coat composition on a substrate, and then a clear coat thereon, wherein said water-based base coat composition comprises a pigment and a resin emulsion obtained by emulsion polymerization of an &agr;, &bgr;-ethylenically unsaturated monomer mixture, said &agr;,&bgr;-ethylenically unsaturated monomer mixture having an acid value of 3 to 50 mg KOH/g and containing at least 65% by weight of a (meth)acrylic ester whose ester moiety contains 1 or 2 carbon atoms.

Abstract: The present invention provides a method of forming a composite coating film which makes it possible to attain both appearance and workability in a high-humidity environment.

Abstract: A thermosetting water-borne coating composition which, when used as a water-borne coating, have both sufficient curability and sufficient storage stability and provides coating films excellent in water resistance, a method of forming a coating film using the same and a method of forming a multilayer coating film using the same are provided. The coating composition comprises a polycarbodiimide compound modified for hydrophilicity and a carboxyl-containing aqueous resin composition, wherein the polycarbodiimide compound has a structure such that a carbodiimide unit and a polyol unit occur alternately via a urethane bond and repeatedly and a hydrophilic unit occurs at both molecular termini and is bound to a carbodiimide unit via a urethane bond.

Abstract: A method for preventing settlement of aquatic fouling organisms on surface of an aquatic structure without environmental hazard is provided. The method is based upon absolutely novel concept to prevent the settlement by means of thick slime layer, i.e. bio-jelly, deposited on said surface. The present invention also provides a bio-jelly producing agent and a bio-jelly producing paint both useful for the present method. Further, the present invention provides a novel low toxic antifouling agent.

Abstract: A method of forming multilayer coatings including a pigmented base coat layer applied on a substrate such as automobile bodies comprises applying, as an outermost layer, a clear coat composition comprising (a) a resin having pluralities of hydrosilyl groups and alkenyl groups in the molecule or a blend of resins having a plurality of hydrosilyl groups in the molecule and a plurality of alkenyl groups in the molecule, respectively, and (b) a compound catalyzing the addition reaction of the hydrosilyl group to the alkenyl group.

Abstract: A curable resin composition containing (a) a homo- or copolymer of an organohydrogenpolysiloxane macromonomer, (b) an alkenyl group-containing polymer, and (c) a hydrosilylation catalyst is disclosed. The organohydrogenpolysiloxane macromonomer may be incorporated into a single polymer entity together with an alkenyl group-containing monomer unit to produce a self-crosslinkable copolymer.

Abstract: The present invention provides a paint film with fewer craters and indentations, while maintaining performance as an electrodeposition paint. The electrodeposition paint composition contains an aqueous dispersing system containing an electrodepositable resin and a block polymer containing polysiloxane units and polyalkylene oxide units.

Abstract: A blend of (A) an acrylic, polyester or epoxy resin having at least two alkenyl or alkynyl groups in a molecule, (B) an organic silicon compound having at least two hydrogen atoms each directly attached to a silicon atom in a molecule, and (C) a hydrosilylaion catalyst is blended with (D) an organic iron or aluminum compound to form a hydrosilylative composition. Component (D) scavenges a catalyst poison, permitting components (A) and (B) to undergo hydrosilylation reaction with the aid of catalyst (C).

Abstract: A curing type resin composition used as a molding material, a paint binder, etc. comprises a curing agent and a copolymer composed of a silicone compound and an .alpha., .beta.-unsaturated vinyl monomer. The silicone compound is selected from the group consisting of silicone compounds having the following general structural formulas (1) and (2) respectively, and the curing agent has at least two functional groups, individual molecules of which react with a functional group in the groups Y of the silicone compound. ##STR1## wherein: X is selected from the group consisting of a 3-acryloxypropyl group and a 3-methacryloxypropyl group;Y is selected from the group consisting of a 3-glycidoxypropyl group; a 2-(3',4'-epoxycyclohexyl)ethyl group; a 3-hydroxypropyl group; a 3-(2'-hydroxyethoxy)propyl group; and a 3-(4'-(3',3'-dihydroxymethyl)butoxy)propyl group,R is selected from the group consisting of a phenyl group and an alkyl group having 1 to 6 carbon atoms; anda, b, and c are numbers in the following ranges:1.

Abstract: An antifouling paint containing as an active component, in an amount of 5 to 100% by weight of the non-volatile of the paint, an alkylphenoxy group containing organo-silicon compound selected from an organo-silane, a bis-silyl compound and a polysiloxane, the alkyl being a straight or branched C.sub.7 to C.sub.12 alkyl of the formula: C.sub.x H.sub.2x+1 (in which x is 7 to 12) or a 1-methyl-1-phenylethyl group.The novel antifouling paint of the invention can afford a long-lasting, strong antifouling effect when used as a marine paint.

Abstract: A curable resin composition comprising (a) an acrylic, polyester, epoxy or polyol resin having a plurality of alkynyl groups, (b) an organohydrogenpolysiloxane, and (c) an amount of platinum catalyst effective to catalyze the crosslink reaction between (a) and (b). The composition is useful for coating and molding purposes and gives a cured product having excellent acid resistance, water resistance and other properties.

Abstract: A curable resin composition containing (a) a polymer having a plurality of alkenyl groups, (b) an organohydrogenpolysiloxane having a plurality of hydrosilyl groups, (c) a polymer having a plurality of alkynyl groups, and (d) a hydrosilylation catalyst is disclosed. The composition is stable at room temperature but curable at an elevated temperature.

Abstract: A bioactive substance control-releasing resinous composition comprising a resin having main chain and side chains, at least one side chain bearing at the end portion thereof an organic acid moiety having a biological activity, through a metal ester bonding. The resin is hydrolyzed in an ionic atmosphere at a controlled rate to generate a bioactive substance as well as metal ions and is useful in various fields and especially as a resinous vehicle for a coating composition.

Abstract: This invention discloses a curing resin composition comprising (a) an organic resin containing no less than 2 alkenyl groups per molecule, and having a number average molecular weight of 500-100,000. (b) an organohydrogen-polysiloxane containing no less than 2 Si--H bonds per molecule, and (c) a platinum catalyst. It is desired that the organic resin of component (a) is at least one type chosen from acrylic, polyester and epoxy. The preferable amount of component (b) is such that there are 0.8-4 hydrogen atoms bonded to silicon atoms per alkenyl group of component (a).

Abstract: A silicone compound of the rational formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently a hydrogen atom or a hydrocarbon radical free from acetylenic unsaturaiton; Z is --O--, --S-- or --NH--; Y is a divalent organic group; R.sup.3 is a hydrogen atom, an akyl, alkenyl, alkoxy or phenyl group; and m and n are rational numbers satisfy the ration of 4>m+n.gtoreq.2. The compound is useful as a precursor of nonemanating, self-curing and heat resistant silicone resins.

Abstract: The invention relates to a novel hydrolyzable silicone resin composition comprising a polysiloxane having at least one polyvalent metal ester group represented by either one of the following formulae:(--COO--) (.sub.m --M--(R.sub.2).sub.n--R.sub.1 --COO--).sub.m --M--(R.sub.2).sub.n ##STR1## in which R.sub.2 is a hydroxyl group, an alkoxyl group, an alkyl group, a halogen or oxygen atom; R.sub.1 is a bivalent organic residue; p and q each is 0 or an integer of 1 to 8; m is an integer of 2 or more; n is 0 or an integer of 1 or more, providing that the sum of m and n is equal to the valence number of metal M; and M is a bivalent to tetravalent metal selected from the group consisting of Ti, Al, Mg, Zn, Pb, Zr, Cu, Ni, Co and Sn, its preparation and coating composition containing the same, which is useful in an antifouling paint.

Abstract: The present invention relates to a hydrolyzable resin composition based on the resin having at least one side chain bearing a particular metal containing terminal group. The invention also concerns an antifouling coating composition containing said hydrolyzable resin composition as a vehicle.

Abstract: Benzyl pyridinium or ammonium salts of a non-nucleophilic anion are useful as a cationic polymerization initiator having a heat latency. A variety of resinous compositions containing this initiator is also disclosed.

Abstract: A resinous composition for coating use comprising(a) 3 to 70% by weight of organopolysiloxane represented by the formula:R.sup.1.sub.n R.sup.2.sub.m SiO.sub.(4-n-m)/2wherein R.sup.1 represents hydrogen, allyloxy group, an alkoxy group having 1 to 20 carbon atoms, an aryl group, methyl group, or an organic group having 2 to 100 carbon atoms; R.sup.2 is a hydroxyl group bearing organic group having 2 to 100 carbon atoms; m and n each represents a positive number fulfilling the requirements of 0<n<4, 0<m<4 and 2.ltoreq.m+n<4, having a number average molecular weight of 200 to 100,000 and a hydroxyl value of 20 to 400.(b) 97 to 30% by weight of hydroxyl group containing resin having a hydroxyl value of 20 to 300, and(c) crosslinking agent which is reactive with a hydroxyl groupThis composition is particularly useful in the area where durability and weather resistance of the formed coating are specifically required.