Abstract:
A curable composition includes organic polymer (A) having more than one reactive silicon group on average per molecule, represented by formula (1): —SiR1aX3-a (1), wherein R1 is a substituted or unsubstituted hydrocarbon group having 1-20 carbon atoms, each X is independently a hydroxy group or a hydrolyzable group, and a is 0 or 1, and (meth)acrylate-based polymer (B) having a reactive silicon group represented by formula (2): —SiX3 (2), wherein each X is as defined for the formula (1), polymer (B) has a reactive silicon group equivalent of not less than 0.30 mmol/g, and wherein a monomer (b1) is free of a reactive silicon group, a glass transition temperature of its homopolymer is not more than 80° C., and is contained as monomer(s) constituting polymer (B) in a proportion of not less than 40 wt % per 100 wt % of total monomer.
Abstract:
Moisture-curable resin compositions comprising (a) a moisture-curable polymer having at least one hydrolysable silyl group; (b) a reactive modifier; (c) a catalyst for catalyzing the reaction between the moisture-curable polymer (a) and reactive modifier (b) under curing conditions; and cured compositions produced by contacting such resin compositions with water are disclosed. The moisture-curable resin composition is useful in the production of adhesives, including hot melt adhesives, primers, sealants, and coatings.
Abstract:
A hydrophilic coating agent for use in the formation of a coating film that can keep hydrophilicity, an anti-fogging property and an anti-fogging effect thereof and has water resistance, the coating agent including an alkoxysilyl-group-containing compound, a film which has an anti-fogging property and can be produced by shaping the hydrophilic coating agent into a film-like form; and a product which has an anti-fogging layer formed on the surface thereof, wherein the anti-fogging layer is formed from the hydrophilic coating agent.
Abstract:
The present invention provides a product and a manufacturing process for an aqueous dispersible dendritic polymer with various functionalities, and polymer compositions and polymer formulations comprising such a dendritic polymer. The aqueous dispersible dendritic polymer composition comprises a hydrophilic functional group to allow dispersion in aqueous solvents and improve washability of the polymer, a low surface tension functional group to impart resistance to dirt pick-up and optionally, a curable functional group to allow superior cross-linking capabilities and optionally, a softening functional group to impart flexibility to the composition.
Abstract:
Provided is infrared ray reflective paint which is used to form a film having a high reflectance in an infrared ray wavelength region, a high transmittance in a visible ray wavelength region, and a self-cleaning ability, and the infrared ray reflective paint contains: an acrylic resin that contains at least one of a silyl group and a silanol group, and a metal oxide-coated mica wherein one or more metal oxides selected from a tin oxide, a titanium oxide, and a silicon oxide is coated on a surface of mica, and the infrared ray reflective paint contains the metal oxide-coated mica in an amount of 0.4% to 1.5% in terms of PVC (Pigment Volume Concentration).
Abstract:
Provided is a method of forming an antifouling coating film including the steps of [1] preparing a colored antifouling paint containing a prescribed Si-containing hydrolyzable resin and a color pigment such that a coating film having a target dry film thickness T completely hides a surface of an object to be coated, the colored antifouling paint has a color difference ΔE1 between the coating film having the thickness T and a coating film having a dry film thickness of 0.8 T, at least 2.0, and preferably the colored antifouling paint has a color difference ΔE2 between the coating film having the thickness T and a coating film having a dry film thickness of 1.2 T, less than 1, and [2] coating a surface of the object with the colored antifouling paint until the surface of the object is completely hidden by the coating film formed from the colored antifouling paint.
Abstract:
An object of the present invention is to provide a curable composition that provides high hardness and can be used in adhesives and coating agents. This object can be achieved by a curable composition containing: 100 parts by weight of a reactive silyl group-containing organic polymer (A) that has a number average molecular weight of 2,000 to 6,000 and contains 1.3 to 5 reactive silyl groups per molecule; and 0 to 40 parts by weight of a plasticizer (C). This curable composition is suitable for flooring adhesives and tile adhesives, which require high hardness.
Abstract:
The present invention has its object to provide a curable composition which allows slight bleedout of a liquid compound to occur to the cured product and shows good curability and adhesiveness using a non-organotin catalyst, an amine compound, as a silanol condensation catalyst.The present invention relates to a non-organotin-based curable composition which comprises: (A) an organic polymer having a silicon-containing group capable of crosslinking by siloxane bond formation, and (B) a specific amidine compound and/or a guanidine compound having a melting point of not lower than 23° C., as a silanol condensation catalyst.
Abstract:
The invention relates to the discovery that pre-treating mineral oxide particles with a silylated polymeric coupling agent prior to suspending the particles in a binder polymer increases the crack resistance and adhesion of particles to a inkjet printing substrate such as paper sheets. Such pretreatment also reduces the amount of binder needed to achieve acceptable performance, leading to improvements in production speed and image quality.
Abstract:
The present invention has its object to provide a curable composition which comprises an amidine compound as a non-organotin catalyst and shows good elongation, flexibility, surface curability, depth curability and adhesiveness; the above object can be achieved by a non-organotin curable composition which comprises: (A) an organic polymer containing a silyl group capable of crosslinking under siloxane bond formation, the silyl group being a group represented by the general formula (1): —SiR1X2; (B) an amidine compound (B-1) as a silanol condensation catalyst; and (C) a carboxylic acid, wherein the ratio between the number of moles (b) of all nitrogen atoms in the (B-1) component of the composition and the number of moles (c) of all carboxyl groups in the (C) component of the composition, namely the ratio (b)/(c), is higher than 2.