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US 7,252,785 B2Granted
Composition for producing a thermal insulation coating
AssigneeBASF SE
InventorsRobert Parker, Norbert Schneider, Gerhard Wagenblast, Arno Boehm
Life of this patent
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Abstract
The invention relates to a composition for producing a heat-insulating coating comprising at least one radiation-absorbing compound and at least one IR-reflector component, to a heat-insulating coating comprising this oriented, cured composition, and to a process for producing said coating.
Claims11
A composition comprising
- i) at least one radiation-absorbing tert-alkylphenoxy-substituted polycyclic compound A of formula I
- where
- P is a conjugated polycyclic radical that is stable to bases and nucleophiles, optionally bears aryl substituents and contains no group from the group consisting of —CO—NH—CO—, —COOH and —CO—O—CO—;
- R is C1-C8-alkyl, wherein the carbon chain of said C1-C8-alkyl may be interrupted by one or more groups selected from the group consisting of —O—, —S—, —NR1−, —CO— and —SO2— and which may be monosubstituted or polysubstituted by identical or different radicals selected from the group consisting of C1-C6-alkoxy and a 5- to 7-membered heterocyclic radical that is attached via a nitrogen atom and may contain further heteroatoms and/or may be aromatic;
- or R is C5-C8-cycloalkyl, wherein the carbon framework of said C5-C8-cycloalkyl may be interrupted by one or more groups selected from the group consisting of —O—, —S—, —NR1−, —CO— and —SO2— and which may be monosubstituted or polysubstituted by C1-C6-alkyl;
- R1 is hydrogen or C1-C6-alkyl;
- Hal is chlorine or bromine or mixtures thereof;
- m is from 0 to 15;
- and
- n is from 1 to 16, wherein the sum m+n is ≦16 and
- ii) at least one curable IR-reflecting component B which comprises
- a) at least one achiral nematic polymerizable monomer and at least one chiral polymerizable monomer;
- b) at least one cholesteric polymerizable monomer;
- c) at least one cholesteric crosslinkable polymer;
- or
- d) at least one cholesteric polymer in a polymerizable diluent.
13 more elements
Dependencies are inferred from the claim text.