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A coating material for interior walls and exterior facades has heat reflection and oleophobicity/hydrophobicity, properties. The material is either opaque to visible light and/or contains a material which provides opacity. It includes:a) at least one silane of the formula (I) a R b SiR 1 4"

A coating material for interior walls and exterior facades has heat reflection and oleophobicity/hydrophobicity, properties. The material is either opaque to visible light and/or contains a material which provides opacity. It includes:a) at least one silane of the formula (I) a R b SiR 1 4−a−b   (I) in whichX is a hydrolyzable group,R is optionally substituted alkyl, alkenyl, aryl, alkylaryl or arylalkyl,R 1 is an organic radical which is attached to the silicon via carbon and carries a reactive group,a is an integer from 1 to 3, andb is an integer from 0 to 2,or a (partial) condensate of this silane,b) at least one infrared-reflecting pigment whose particle size is situated primarily in the range from 1 to 50 μm, andc) a solvent and/or dispersion medium.

대표청구항 ▼

1. Coating material comprising of the following constituent(s):a) at least one silane of the formula (I) a R b SiR 1 4−a−b   (I) in whichX is a hydrolyzable group,R is optionally substituted alkyl, alkenyl, aryl, alkylaryl or arylalkyl,R 1 is an organic radic

1. Coating material comprising of the following constituent(s):a) at least one silane of the formula (I) a R b SiR 1 4−a−b   (I) in whichX is a hydrolyzable group,R is optionally substituted alkyl, alkenyl, aryl, alkylaryl or arylalkyl,R 1 is an organic radical which is attached to the silicon via carbon and carries a reactive group,a is an integer from 1 to 3, andb is an integer from 0 to 2,or a (partial) hydrolyzate/condensate of this silane,b) at least one infrared-reflecting pigment whose particle size is situated primarily in the range from 1 to 50 μm, andc) a solvent and/or dispersion medium, wherein either the pigment is present at least in an amount such that the coating material, following application to a surface, is substantially opaque to light in the visible region and/or a further constituent of the coating material brings about such opacity to light of the coating material. 2. Coating material according to claim 1, characterized in that it further comprises:(d) at least one metal compound of the formula (II) 2 ) n   (II)in which preferably N is selected from Ge, Sn, Pb, Ti, and Zr and n is 4 or N is preferably selected from B and Al and n is 3 and R 2 has the same meaning as R in formula (I), or at least one complex derivative of the metal compound of the formula (II) in which some or all of the groups OR 2 have been replaced by one or more ligands L which are bonded more strongly to the metal N than is the group (OR 2 ), which may be present in (partially) hydrolyzed and/or cocondensed form. 3. Coating material according to claim 1, characterized in that it further comprises: (e) at least one polymeric organic additive serving as thickener or dispersant. 4. Coating material according to claim 1, characterized in that the indices of the formula (I) have the following meaning:X is hydrogen, halogen, hydroxyl, an optionally substituted alkoxy, acyloxy, alkylcarbonyl or alkoxycarbonyl group having preferably 1-10 carbon atoms in the alkyl or acyl group, NR 3 where R 3 is hydrogen, optionally substituted alkyl having preferably 1-10 carbon atoms or optionally substituted aryl,R is an optionally substituted, preferably incompletely fluorine-substituted alkyl, alkenyl, aryl, alkylaryl or arylalkyl group having from 1-10 alkyl carbons, andR 1 is a radical with at least one group which is able to enter into organic reactions, preferably selected from at least one amino, epoxide, vinyl or (meth)acrylate group. 5. Coating material according to claim 1, characterized in that it comprises at least one silane of the formula (IV) a SiR b   (IV)optionally in (partially) hydrolyzed and/or cocondensed form, in which a is an integer from 1 to 4, a+b is 4, x is preferably a C 1 -C 4 alkoxy, and R is preferably a C 1 -C 4 alkyl. 6. Coating material according to claim 5, characterized in that it further comprises at least one silane of the formula (III) a R b SiR 1 4−a−b   (III)optionally in (partially) hydrolyzed and/or cocondensed form, in whichX is defined as in formula (I), R 1 is defined as in formula (I) and is preferably a C 1 -C 6 alkyleneamine and a+b is 3. 7. Coating material according to claim 1, characterized in that it comprises at least one organic polymer modified by one or more silane groups, preferably silanized polyvinyl alcohol, silanized polyvinylbutyral or silanized styrene/allyl alcohol copolymer. 8. Coating material according to claim 1, characterized in that the infrared-reflecting pigment (b) is selected from (i) metals and metal alloys, especially aluminum, chromium, iron, copper, nickel, silver, gold, iron, tin, zinc, bronze, brass, ferrous alloys, and nickel alloys, (ii) metal sulfides, especially copper, lead and zinc sulfide, (iii) metal fluorides, especially calcium fluoride, barium fluoride and sodium fluoride, (iv) metal oxides, especially zinc oxide, titanium dioxide, magnesi um oxide, antimony dioxide, (v) ceramic or vitreous pigments, and (vi) hollow, preferably dielectric, open or closed beads having a very low wall thickness. 9. Coating material according to claim 1, characterized in that the infrared-reflecting pigment (b) is present in an amount of at least 5% by weight, preferably 10-60% by weight, and with particular preference of 20-50% by weight. 10. Coating material according to claim 2, characterized in that the complex derivative of the metal compound (d) of the formula (II) is selected from compounds having the formula (V) 2 O) m ML n   (V)in whichM is Ti, Zr and Al,R 2 is C 1 -C 6 alkyl,L is selected fromm is an integer from 1 to 3, andn is an integer from 1 to 3. 11. Coating material according to claim 3, characterized in that the polymeric additive (e) serving as thickener or dispersant is selected from polyvinyl alcohol, polyvinyl acetate, copolymers of these two substances, poly(meth)-acrylates and copolymers thereof, (meth)-acrylic/styrene copolymers, polyacrylic acid, acrylic acid-maleic acid copolymers, styrene/allyl alcohol copolymers, polyvinylpyrrolidone and vinylpyrrolidone/acrylic acid copolymers. 12. Coating material according to claim 3, characterized in that there is at least one silane of the formula (I) in which a+b <4 and the group R 1 carries a radical which can be subjected to organic addition reaction or polymerization reaction, which is present in addition-reacted or copolymerized form or can be subjected to addition reaction or copolymerization with at least one polymeric additive. 13. Coating material according to claim 4, characterized in that it further comprises: (f) at least one organic monomer selected from monomers which can be subjected to addition polymerization or polyaddition, preferably those which carry (meth)acrylate, vinyl or epoxy groups, at least one silane of the formula (I) carrying a group R 1 which can be polymerized with this monomer.