摘要:
The invention relates to compounds with the general formula Y1—A1—M1—A2—Y2 wherein Y1 and Y2 are different from each other and Y1 is an acrylate or methacrylate residue and Y2 is a vinyl ether, epoxy, or azide residue, A1 and A2 are identical or different residues with the general formula CnH2n in which n is a whole number from 0 to 20 and one or more methylene groups can be replaced by oxygen atoms, and M1 has the general formula —R1—X1—R2—X2—R3—X3—R4— wherein R1, R2, R3, and R4 are identical or different doubly bonded residues from the group —O—, —COO—, —CONH—, —CO—, —S—, —C≡C—, —CH═CH—, —CH═N—, —CH2—, —N═N—, and —N═N(O)—, and R2—X2—R3 can also be a C—C bond, and X1, X2, and X3 are identical or different residues from the group 1,4-phenylene, 1,4-cyclohexylene; arylalkane or heteroarylalkane with 1 to 10 carbon atoms which contains one to three heteroatoms from the group O, N, and S, substituted with B1, B2, and/or B3; and cycloalkylene with 1 to 10 carbon atoms and substituted with B1, B2, and/or B3, wherein B1, B2, and B3 can be identical or different substituents from the group —H, C1-C20-alkyl, C1-C20-alkoxy, C1-C20- alkylthio, C1-C20-alkylcarbonyl, C1-C20-alkoxycarbonyl, C1-C20-alkylthiocarbonyl, —OH, halogen (fluorine, chlorine, bromine, iodine), —CN, —NO2, cycloalkyl, formyl, acetyl, and alkyl, alkoxy, or alkylthio residues with 1-20 carbon atoms interrupted by ether oxygen, thioether sulfur, or ester groups.
摘要:
The invention relates to compounds with the general formula Y1—A1—M1—A2—Y2 wherein Y1 and Y2 are different from each other and Y1 is an acrylate or methacrylate residue and Y2 is a vinyl ether, epoxy, or azide residue, A1 and A2 are identical or different residues with the general formula CnH2n in which n is a whole number from 0 to 20 and one or more methylene groups can be replaced by oxygen atoms, and M1 has the general formula —R1—X1—R2—X2—R3—X3—R4— wherein R1, R2, R3, and R4 are identical or different doubly bonded residues from the group —O—, —COO—, —CONH—, —CO—, —S—, —C≡C—, —CH═CH—, —CH═N—, —CH2—, —N═N—, and —N═N(O)—, and R2—X2—R3 can also be a C—C bond, and X1, X2, and X3 are identical or different residues from the group 1,4-phenylene, 1,4-cyclohexylene; arylalkane or heteroarylalkane with 1 to 10 carbon atoms which contains one to three heteroatoms from the group O, N, and S, substituted with B1, B2, and/or B3; and cycloalkylene with 1 to 10 carbon atoms and substituted with B1, B2, and/or B3, wherein B1, B2, and B3 can be identical or different substituents from the group —H, C1-C20-alkyl, C1-C20-alkoxy, C1-C20-alkylthio, C1-C20-alkylcarbonyl, C1-C20-alkoxycarbonyl, C1-C20-alkylthiocarbonyl, —OH, halogen(fluorine, chlorine, bromine, iodine), —CN, —NO2, cycloalkyl, formyl, acetyl, and alkyl, alkoxy, or alkylthio residues with 1-20 carbon atoms interrupted by ether oxygen, thioether sulfur, or ester groups.
摘要:
The invention relates to compounds with the general formula Y.sup.1 --A.sup.1 --M.sup.1 --A.sup.2 --Y.sup.2 whereinY.sup.1 and Y.sup.2 are different from each other and Y.sup.1 is an acrylate or methacrylate residue and Y.sup.2 is a vinyl ether, epoxy, or azide residue,A.sup.1 and A.sup.2 are identical or different residues with the general formula C.sub.n H.sub.2n in which n is a whole number from 0 to 20 and one or more methylene groups can be replaced by oxygen atoms, andM.sup.1 has the general formula --R.sup.1 --X.sup.1 --R.sup.2 --X.sup.2 --R.sup.3 --X.sup.3 --R.sup.4 -- whereinR.sup.1, R.sup.2, R.sup.3, and R.sup.4 are identical or different doubly bonded residues from the group --O--, --COO--, --CONH--, --CO--, --S--, --C.tbd.C--, --CH.dbd.CH--, --CH.dbd.N--, --CH.sub.2 --, --N.dbd.N--, and --N.dbd.N(O)--, and R.sup.2 --X.sup.2 --R.sup.3 can also be a C--C bond, andX.sup.1, X.sup.2, and X.sup.3 are identical or different residues from the group 1,4-phenylene, 1,4-cyclohexylene; arylalkane or heteroarylalkane with 1 to 10 carbon atoms which contains one to three heteroatoms from the group O, N, and S, substituted with B.sup.1, B.sup.2, and/or B.sup.3 ; and cycloalkylene with 1 to 10 carbon atoms and substituted with B.sup.1, B.sup.2, and/or B.sup.3, wherein B.sup.1, B.sup.2, and B.sup.3 can be identical or different substituents from the group --H, C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.20 -alkoxy, C.sub.1 -C.sub.20 -alkylthio, C.sub.1 -C.sub.20 -alkylcarbonyl, C.sub.1 -C.sub.20 -alkoxycarbonyl, C.sub.1 -C.sub.20 -alkylthiocarbonyl, --OH, halogen (fluorine, chlorine, bromine, iodine), --CN, --NO.sub.2, cycloalkyl, formyl, acetyl, and alkyl, alkoxy, or alkylthio residues with 1-20 carbon atoms interrupted by ether oxygen, thioether sulfur, or ester groups.
摘要:
A coating material and coating process for color coating articles, such as motor vehicle bodies, and coated articles produced therewith. The coating contains a paint vehicle composed of at least one curable liquid-crystal polymer (LCP), the colored appearance of the coating being determined by mesogens of the paint vehicle which exhibit an interference effect, the mesogens automatically aligning themselves substantially perpendicular to the surface of the article during application of the coating material and adopting a chiral-nematic configuration in which they form a helix having a pitch length which can be influenced by heat within a specified temperature range. The liquid-crystal polymers are such that they are not crosslinked by heat and also such that the temperature level at which the pitch length of the helix can be influenced is above the temperature at which the color coated article is used. By heating an applied but uncrosslinked coating to a temperature within the specified range, the color of the coating can be adjusted in situ to obtain a desired interference color effect after the coating has been applied to the article, and the heat-adjusted color effect can thereafter be stabilized by rapid cooling and/or by UV irradiation of the coat. The color-determining substance of the paint vehicle and the essential substance of the paint vehicle itself are identical and form a coherent homogeneous layer of a cured liquid-crystal polymer.