A composition, including at least one silane group-containing polymer that is liquid at room temperature, at least one epoxide liquid resin, and at least one aliphatic polyamine having a molecular weight of at least 115 g/mol and having at least three amine hydrogens reactive toward epoxide groups. The composition is a liquid that is configured to form a sealing membrane after curing. The sealing film applied in liquid form is isocyanate-free, low-odor, and easy to process because of the low viscosity and the long open time. The sealing film cures quickly and forms a high-quality elastic material having good mechanical properties and good weather resistance.

A hydrophilic slippery treatment agent which allows for the formation of a coating having hydrophilicity concurrently with water droplet removability via drying at lower temperatures, a surface treatment method using the hydrophilic slippery treatment agent, a substrate having a hydrophilic slippery coating formed thereon by the surface treatment method, and a fin material for a heat exchanger having a hydrophilic slippery coating formed thereon by the surface treatment method are provided. The treatment agent contains an organosilicon compound with a specific structure including both a hydrophilic-chain-containing group and a hydrolyzable group, and a metal alkoxide.

Silicone polyurea block copolymers are prepared by copolymerizing: (a) a diamine composition that includes a polyethylene glycol diamine, and optionally, a dipiperidyl alkane; (b) a monofunctional silicone isocyanate; and (c) a diisocyanate. Compositions useful as passivating coatings comprising the block copolymer are also provided, and substrates coated with the compositions. Methods of preparing and using the compositions are also described.

A dispersion contains: (a) a polyorganosiloxane with at least 90 mole % dimethyl D units and viscosity of one kPa*s or more dispersed as 0.5-20 micrometer particles; (b) a condensation product of: (i) a polysiloxane resin (Mw of 4,000-50,000) with composition: (R.sub.3SiO.sub.1/2).sub.a(SiO.sub.4/2).sub.b(ZO.sub.1/2).sub.c where a is 0.30-0.60, b is 0.40-0.70, c is 0.05-0.20, a+b is one, R is selected from hydrogen, C.sub.1-30 alkyl groups and aryl groups, and Z is selected from H, and C.sub.1-8 alkyls; and (ii) a polyoxyalkylene polymer (Mn of 4,500-50,000) with composition: A-O—(C.sub.2H.sub.4O).sub.e(C.sub.3H.sub.6O).sub.p-A′ where e/p is 1-9, A and A′ are selected from hydrogen, alkyl, substituted alkyl, aryl, and substituted aryl groups and at least one of A and A′ is H; (c) non-aqueous fluid carrier miscible with (a); and (d) monoterpene; the weight-ratio of (c) to (b) is 0.5-10; weight-ratio of (b) and (c) to (a) is 0.01-0.50; and the composition contains below one ppm aromatic solvent.

A dispersion contains: (a) a polyorganosiloxane with at least 90 mole % dimethyl D units and viscosity of one kPa*s or more dispersed as 0.5-20 micrometer particles; (b) a condensation product of: (i) a polysiloxane resin (Mw of 4,000-50,000) with composition: (R.sub.3SiO.sub.1/2).sub.a(SiO.sub.4/2).sub.b(ZO.sub.1/2).sub.c where a is 0.30-0.60, b is 0.40-0.70, c is 0.05-0.20, a+b is one, R is selected from hydrogen, C.sub.1-30 alkyl groups and aryl groups, and Z is selected from H, and C.sub.1-8 alkyls; and (ii) a polyoxyalkylene polymer (Mn of 4,500-50,000) with composition: A-O—(C.sub.2H.sub.4O).sub.e(C.sub.3H.sub.6O).sub.p-A′ where e/p is 1-9, A and A′ are selected from hydrogen, alkyl, substituted alkyl, aryl, and substituted aryl groups and at least one of A and A′ is H; (c) non-aqueous fluid carrier miscible with (a); and (d) monoterpene; the weight-ratio of (c) to (b) is 0.5-10; weight-ratio of (b) and (c) to (a) is 0.01-0.50; and the composition contains below one ppm aromatic solvent.

A hydrophilic slippery treatment agent which allows for the formation of a coating having hydrophilicity concurrently with water droplet removability via drying at lower temperatures, a surface treatment method using the hydrophilic slippery treatment agent, a substrate having a hydrophilic slippery coating formed thereon by the surface treatment method, and a fin material for a heat exchanger having a hydrophilic slippery coating formed thereon by the surface treatment method are provided.

The treatment agent contains an organosilicon compound with a specific structure including both a hydrophilic-chain-containing group and a hydrolyzable group, and a metal alkoxide.

A coating agent includes: a film forming component including a component A consisting of a urethane (meth)acrylate having an isocyanuric ring skeleton, a component B consisting of a tri(meth)acrylate having an isocyanuric ring skeleton and having no urethane bond, a component C consisting of a polymerizable urethane which has a polycarbonate skeleton derived from a polycarbonate diol having an alicyclic structure, 3 or more polymerizable unsaturated groups per molecule, a weight average molecular weight of 10,000 to 40,000, and a content ratio of the alicyclic structure of 10 mass% to 25 mass%, and a component D consisting of colloidal silica having a (meth)acryloyl group; and a component E consisting of a photoradical polymerization initiator. The content of the component E is 0.1 to 10 parts by mass based on 100 parts by mass of the total film forming component.

A fluoropolyether group-containing compound of formula (1) or (2) below:

R.sup.F1—X—R.sup.Si  (1)

R.sup.Si—X—R.sup.F2—X—R.sup.Si  (2)

wherein R.sup.F1, R.sup.Si and R.sup.F2 are as defined herein.

The object of the present invention is to provide a fluorinated ether composition with which a surface layer capable of imparting excellent water/oil repellency to the surface of a substrate and being excellent in abrasion resistance and weather resistance of the water/oil repellency, can be formed, and a coating liquid containing the fluorinated ether composition. The present invention further provides an article having a surface layer formed of the fluorinated ether composition, and a method for producing it.

A fluorinated ether composition containing a specific fluorinated ether compound (1) having a poly(oxyfluoroalkylene) chain and having two silyl groups each having a hydrolyzable group bonded, at one terminal of the chain via an amide bond, and a specific fluorinated ether compound (2) having a poly(oxyfluoroalkylene) chain and having two silyl groups having a hydrolyzable group bonded, at both terminals of the chain via an amid bond.

The object of the present invention is to provide a fluorinated ether composition with which a surface layer capable of imparting excellent water/oil repellency to the surface of a substrate and being excellent in abrasion resistance and weather resistance of the water/oil repellency, can be formed, and a coating liquid containing the fluorinated ether composition. The present invention further provides an article having a surface layer formed of the fluorinated ether composition, and a method for producing it.

A fluorinated ether composition containing a specific fluorinated ether compound (1) having a poly(oxyfluoroalkylene) chain and having two silyl groups each having a hydrolyzable group bonded, at one terminal of the chain via an amide bond, and a specific fluorinated ether compound (2) having a poly(oxyfluoroalkylene) chain and having two silyl groups having a hydrolyzable group bonded, at both terminals of the chain via an amid bond.