Abstract: a tape or sheet form pressure-sensitive adhesive material which comprises a substrate which is obtainable by curing a curable resin composition comprising:(A) an organic elastomeric polymer which is liquid at room temperature and has, in a molecule, at least one silicon-containing group to the silicon atom of which at lease one hydroxyl group or hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond,(B) a curing catalystand(C) optionally a tackifier resin and a pressure-sensitive adhesive layer laminated on said substrate, which has good flexibility and increased adhesive force such as adhesive strength under shear and peel strength.

Abstract: A two-pack type curable composition comprising:A. a first liquid containing an organic elastomeric polymer having at least one silicon-containing reactive group in a molecule and a curing agent for an epoxy resin, andB. a second liquid containing an epoxy resin, at least one organic tin compound selected from the group consisting of compounds of the formulae: ##STR1## wherein R.sup.1 is a monovalent hydrocarbon group, and R.sup.2 is a monovalent aliphatic hydrocarbon group having 7 to 19 carbon atoms, and an inorganic filler, which composition has good storage stability.

Abstract: A two-pack type curable composition comprising:A. a first composition containing (A-1) an organic elastomeric polymer having at least one silicon-containing group to the silicon atom of which a hydroxyl group and/or a hydrolyzable group are bonded and which is cross linkable through formation of a siloxane linkage in a molecule and (A-2) a curing agent for an epoxy resin, andB. a second composition containing (B-1) an epoxy resin, (B-2) a curing catalyst for the organic elastomeric polymer having at least one silicon-containing reactive group and (B-3) at least one member selected from the group consisting of acidic fillers and carboxylic acids, which has good storage stability.

Abstract: A curable coating composition comprising(A) from 10 to 99 parts by weight of a silyl group-containing vinylic polymer having a number average molecular weight of at least 3,000, the main chain thereof being substantially composed of a vinylic polymer chain and having at least one silicon atom bonded to a hydrolyzable group at a terminal of the main chain and/or at a side chain in each molecule,(B) from 1 to 90 parts by weight of an organic compound having a number average molecular weight of not larger than 3,000 and having at least one silicon atom bonded to a hydrolyzable group at a terminal in each molecule, and(C) from 1 to 500 parts by weight of silanol-containing organopolysiloxane having, on an average, at least one sianol group in one molecule to 100 parts by weight of the total amount of the component (A) and the component (B).

Abstract: A hydrolyzable silyl group-containing azo compound is represented by the following general formula (I): ##STR1## wherein A represents a group originating from an azo compound having one or more active hydrogen groups;R.sup.1 represents a monovalent organic group;R.sup.2 represents a divalent organic group;X represents a hydrolyzable group;Y represents --O--, --S--, ##STR2## m is an integer of 1 to 3; and n is an integer of 1 or 2;and process for producing the same is disclosed. The hydrolyzable silyl group-containing azo compound is used to prepare a hydrolyzable silyl group-containing vinyl polymer produced by polymerizing vinyl monomer as a radical polymerization initiator.

Abstract: A hydrolyzable silyl group-containing azo compound is represented by the following general formula (I): ##STR1## wherein A represents a group originating from an azo compound having one or more active hydrogen groups;R.sup.1 represents a monovalent organic group;R.sup.2 represents a divalent organic group;X represents a hydrolyzable group;Y represents --O--, --S--, ##STR2## m is an integer of 1 to 3; and n is an integer of 1 or 2;and process for producing the same is disclosed. The hydrolyzable silyl group-containing azo compound is used to prepare a hydrolyzable silyl group-containing vinyl polymer produced by polymerizing vinyl monomer as a radical polymerization initiator.

Abstract: A curable composition formed from:(A) a copolymer that has silicon-containing functional groups capable of crosslinking by forming siloxane bonds and molecular chain containing:(1) at least one monomeric unit selected from the group consisting of short chain alkyl acrylate esters and short chain alkyl methacrylate esters, said short chain alkyl groups having 1 to 8 carbon atoms, and(2) at least one monomeric unit selected from the group consisting of long chain alkyl acrylate esters and long chain alkyl methacrylate esters, said long chain alkyl groups having 10 to 30 carbon atoms;wherein the total amount of the monomeric units (1) and (2) in said copolymer is at least 50 weight %, and(B) an oxyalkylene polymer having silicon-containing functional groups that are capable of crosslinking by forming siloxane bonds; and(C) a curing accelerator,wherein copolymer (A) is present in an amount of 5 to 5,000 parts by weight per 100 parts by weight of oxyalkylene polymer (B), and curing acelerator is present in an amou

Abstract: A curable composition. The composition contains(A) 100 parts of an oxyalkylene polymer having at least one silicon-containing group containing a hydroxyl group and/or hydrolyzable group bound to a silicon atom and capable of crosslinking through the formation of a siloxane bond;(B) 1 to 150 parts of a high molecular weight and/or high viscosity plasticizer; and(c) 0.1 to 20 parts of a compound having one silanol group per molecular and/or a compound capable of reacting with moisture to thereby form one silanol group per molecule. When an alkyd paint is applied onto the surface of a cured material formed from this curable composition excellent coating properties can be obtained, the other physical characteristics of the cured material being maintained.

Abstract: A curable resin composition comprising:(A) 100 parts by weight of a rubbery organic polymer having at least one silicon-containing group to the silicon atom of which a hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond in a molecule.(B) 10 to 500 parts by weight of a vinyl chloride base resin, and(C) 1 to 150 parts by weight of a polymeric plasticizer, which has improved storage stability and is easily cured in the presence of water.

Abstract: A curable polymer composition which comprises:(A) a copolymer comprising a backbone which comprises (1) repeating units derived from at least one monomer selected from the group consisting of alkyl acrylates having 1 to 8 carbon atoms in the alkyl group and alkyl methacrylates having 1 to 8 carbon atoms in the alkyl group and (2) repeating units derived from at least one monomer selected from the group consisting of alkyl acrylates having at least 10 carbon atoms in the alkyl group and alkyl methacrylate having at least 10 carbon atoms in the alkyl groups and (B) an oxyalkylene base polymer having at least one silicon-containing group to the silicon atom of which at least one hydroxyl group or hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond, which composition has improved transparency and storage stability and can provide a cured material having good weather resistance.

Abstract: A curable composition. The composition comprises (A) 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group in which a hydroxy group and/or hydrolyzable group is or are bonded to the silicon atom, said polymer being crosslinkable by formation of a siloxane bond, (B) from 0.1 to 20 parts by weight of a compound having one silanol group per molecule and/or a compound capable of forming a compound having one silanol group per molecule on reacting with moisture, and (C) from 0.1 to 20 parts by weight of a compound having an air oxidative curing unsaturated group. The composition provides a cured product which has low modulus and resistance to dust adhesion and on which an alkyd coating shows excellent coating properties.

Abstract: A curable polymer composition comprising:(A) 100 parts by weight of an oxyalkylene base polymer having at least one silicon-containing group to the silicon atom of which a hydroxy group and/or a hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond,(B) 0.1 to 20 parts by weight of at least one compound selected from the group consisting of a compound having one silanol group in the molecule and a compound which, when reacted with moisture, generates a compound having one silanol group in the molecule,(C) 0.1 to 20 parts by weight of a compound having a silicon-containing group to the silicon atom of which two hydrolyzable groups are bonded and an amino group, and(D) 0.01 to 5 parts by weight of a compound having a silicon-containing group to the silicon atom of which three hydrolyzable groups are bonded and an amino group, which composition provides a cured material having low modulus, group bond strength and improved weather resistance of bond strength.

Abstract: A cured material of a curable composition comprising (1) an organic elastomeric polymer having at least one silicon-containing group to the silicon atom of which a hydroxyl group and/or a hydrolyzable group are bonded and which is cross linkable through formation of a siloxane linkage in a molecule, (2) an epoxy resin, (3) a curing agent for the epoxy resin and (4) a curing catalyst for the organic elastomeric polymer is firmly adhered to a substrate when a vinyl type polymer having at least one silicon-containing group to the silicon atom of which a hydroxyl group and/or a hydrolyzable group are bonded and which is cross linkable through formation of a siloxane linkage is coated on a substrate before application of the curable composition.

Abstract: A curable polymer composition comprising(A) an alkyl (meth)acrylate base polymer having a silicon-containing reactive group,(B) an oxyalkylene base polymer having a silicon-containing reactive group,(C) a silicon-containing compound having three or four hydrolyzable groups bonded to the silicon atom,(D) a silicon-containing compound having two hydrolyzable groups bonded to the silicon atom and(E) a curing acceleratorwherein the compounds (C), (D) and (E) are contained in amounts of 0.01 to 30 parts by weight, 0.1 to 30 parts by weight and 0.01 to 10 parts by weight per 100 parts by weight of the total amount of the polymers (A) and (B), which composition has improved storage stability while a cured material therefrom has good mechanical properties, particularly elongation.

Abstract: A curing composition showing improved drying characteristics of an alkyd coating which comprises:(A) an oxyalkylene polymer having at least one silicon atom-containing group which has a hydroxyl group or a hydrolyzable group bound to a silicon atom and is capable of crosslinking by forming a siloxane bond;(B) a polymeric plasticizer and/or a viscous plasticizer; and(C) an air curing compound.

Abstract: A curable polymer composition which comprises (A) an oxyalkylene base polymer having at least one silicon-containing group to the silicon atom of which a hydroxyl group or a hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond and (B) at least one compound selected from the group consisting of a silicon-containing compound having at least one long chain hydrocarbon group and a silicon-containing compound having at least one fluorohydrocarbon group in an amount of 0.1 to 30 parts by weight per 100 parts by weight of the polymer (A), which composition provides a cured material having improved surface properties.

Abstract: A curable polymer composition comprising:(A) an organic elastomeric polymer having, in a molecule, at least one silicon-containing group which is cross linkable through formation of a siloxane bond and(B) an epoxy resin which has been cured which is easily handled and affords a cured product having improved strength.

Abstract: A curable composition comprises 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group which has a hydroxyl or hydrolyzable group attached to silicon atom and which is crosslinkable by forming a siloxane linkage and from 0.1 to less than 10 parts by weight of a liquid diene polymer.

Abstract: A curable composition. The composition contain(A) a copolymer that has silicon-containing functional groups capable of crosslinking by forming siloxane bonds and whose molecular chain consists substantially of:(1) an alkyl acrylate ester monomeric unit and/or an alkyl methacrylate ester monomeric unit, the alkyl of each being 1 to 8 carbon atoms; and(2) an alkyl acrylate ester monomeric unit and/or an alkyl methacrylate ester monomeric unit, the alkyl of each being at least 10 carbon atoms;(B) an oxyalkylene polymer having silicon-containing functional groups that are capable of crosslinking by forming siloxane bonds; and(C) at least one compound selected from(i) a hydrolyzable organic silane monomer represented by the formula (I):R.sup.1.sub.4-n SiX.sub.nwherein X is a hydrolyzable group, R.sup.1 is a monovalent organic group having 1 to 18 carbon atoms, n is an integer of 1 to 4, and each R.sup.1 or X can be the same or different when two or more R.sup.

Abstract: A curable composition comprising an oxyalkylene polymer having reactive silicon groups and at least one other oxyalkylene polymer which contains no reactive silicon group and is either one containing hydroxyl groups and having a number average molecular weight of not less than 4,000 or one having essentially no hydroxyl group. The curable composition gives a cured product which imparts improved drying properties to alkyd paints applied to the cured product.