摘要:
PROBLEM TO BE SOLVED: To provide a curable composition having high initial bonding strength in a two-component type curable composition using an organic polymer having a reactive silicon group.SOLUTION: In the two-liquid type curable composition having high initial bonding strength and comprising an agent A containing (A) an organic polymer having a reactive silicon group and (C) water, and an agent B containing (D) an amino silane having trimethoxy silyl group and (E) a condensation catalyst, ≥2 pts.wt. (C) water and ≥3 pts.wt. (D) amino silane having the trimethoxy silyl group are used.
摘要:
PROBLEM TO BE SOLVED: To provide a curable composition containing a polyoxyalkylene polymer having a reactive silicon group and a (meth)acrylic copolymer, and expressing excellent weather resistance for a long period. SOLUTION: This curable composition comprises: 100 pts.wt. polyoxyalkylene polymer (A) having at least one silicon-containing functional group causing crosslinking through formation of a siloxane linkage; and 20-1,000 pts.wt. (meth)acrylate copolymer (B) having a hindered amine structure. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a cured product by using an organic polymer having a reactive silicon group, and a curable composition having enhanced strength of the cured product.SOLUTION: There are provided a curable composition and its cured product, containing (A) a polyoxyalkylene-based polymer (a1) and/or vinyl-based polymer (a2) having at least one reactive silicon group and a linear structure as a main chain of 100 pts.wt., (B) a compound having a silanol group in a molecule (b1) and/or a compound capable of producing a compound having one silanol group in a molecule by reacting with water (b2) of 0.1 to 10 pts.wt., (C) an organic tin compound of 0.1 to 10 pts.wt. and (D) an amino group-containing silane coupling agent of 0.1 to 10 pts.wt.
摘要:
PROBLEM TO BE SOLVED: To provide a curable composition usable as a sealing material, an adhesive and a coating agent, and also improved in residual tack though the modulus of the cured product is low.SOLUTION: The problem is solved by using a curable composition containing (A) 100 pts.wt. of a reactive silicon-containing organic polymer with a number-average molecular weight of 2,000-8,000 and (B) 1-600 pts.wt. of a plasticizer, where the number of silicon groups per one molecule of the component (A) of the reactive silicon-containing organic polymer is preferably 1.3 or more.
摘要:
PROBLEM TO BE SOLVED: To provide a curable composition using an organic polymer with reactive silicon groups, having good curability, adhesiveness and surface weatherability and maintaining good surface characteristics even after curing, and a curable composition without containing organotin compounds having the risk of giving bad influences on the environment and human bodies. SOLUTION: The curable composition comprises (A) an organic polymer having silicon-containing groups crosslinkable by forming siloxane bondings, (B) a carboxylic acid and/or a metal salt of carboxylic acid, (C) an amine compound having ≥2 amino groups in one molecule and no reactive silicon groups and (D) a hindered amine compound having a specific structure. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a curable composition having good hardenability as well as good physical properties in tension (high strength, high elongation, and high hardness). SOLUTION: The curable composition comprises (A) a polyoxyalkylene polymer having a group represented by formula (1):-SiX 3 (wherein X represents a hydroxyl group or hydrolyzable group; and three Xs may be mutually same or different) as a silicon-containing group which can be cross-linked by forming a siloxane bond; (B) a straight-chain polyoxyalkylene polymer having a group represented by formula (2):-SiR 1 X 2 (wherein R 1 represents any of a 1-20C alkyl group, a 6-20C aryl group, a 7-20C aralkyl group and a triorganosiloxy group represented by (R') 3 SiO-, wherein R' is a 1-20C hydrocarbon group and three R's may be same or different; X is the same as described above; and two Xs may be same or different) as a silicon-containing group which can be cross-linked by forming a siloxane bond; and (C) a polyoxyalkylene polymer with one or more branched chains, having a group represented by formula (2):-SiR 1 X 2 (wherein R 1 and X are same as described above) as a silicon-containing group which can be cross-linked by forming a siloxane bond. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a curable composition, which can be made into one-pack type to be cured by reacting with moisture in the air at room temperature and gives a cured product having an excellent strength, elongation at break, weatherability and adhesiveness. SOLUTION: The cured product comprises 100 pts.wt. of a vinyl-based polymer (I) having at least one crosslinkable silyl group with a main chain prepared by living radical polymerization and 1-200 pts.wt. of a hydrophobic impalpable powder of silica (II). Also, the cured composition comprises 100 pts.wt. of a vinyl-based polymer (I) having at least one crosslinkable silyl group with a main chain prepared by living radical polymerization and 1-200 pts.wt. of a graft copolymer (III) prepared by graft-polymerizing a vinyl monomer onto an acrylic acid ester-based crosslinked rubbery polymer. COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To solve such a problem that when using a one pot type curable composition, containing an organic polymer having a reactive silicon group and a hollow particle composed of a thermally expandable microcapsule, filled in a container such as a cartridge, the composition oozes out from the tip of a nozzle when extrusion is halted.SOLUTION: A one pot type curable composition includes an organic polymer (A) having a reactive silicon group, and a hollow particle (B) obtained by expanding a thermally expandable microcapsule composed of an outer shell comprising a thermoplastic resin obtained by polymerizing a polymerizable component including a nitrile-based monomer and an expanding agent included in the outer shell and vaporizing by heating. The absolute specific gravity of the hollow particle is in a range of 0.025-0.100, the residue on ignition of the hollow particle is 20% or less, the average particle diameter of the hollow particle is in a range of 30 to 60 μm and a compound with a boiling point in a range of 20-40°C occupies 50 wt.% or more within the expanding agent.