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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0465393 (1995-06-05) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 21 인용 특허 : 415 |
A light-stable colored composition which includes a colorant and a radiation transorber. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also imparts light-stabilit
A light-stable colored composition which includes a colorant and a radiation transorber. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also imparts light-stability to the colorant so that the colorant does not fade when exposed to sunlight or artificial light.
[ What is claimed is:] [1.] A method of light-stabilizing a colorant comprising associating the colorant with a stabilizing compound selected from the group consisting of 1-Hydroxy-cyclohexyl-phenyl ketone; a,a-dimethoxy-a-hydroxy acetophenone; 1-(4-Isopropylphenyl)-2-hydroxy-2-methyl-propan-1-one;
[ What is claimed is:] [1.] A method of light-stabilizing a colorant comprising associating the colorant with a stabilizing compound selected from the group consisting of 1-Hydroxy-cyclohexyl-phenyl ketone; a,a-dimethoxy-a-hydroxy acetophenone; 1-(4-Isopropylphenyl)-2-hydroxy-2-methyl-propan-1-one; 1-[4-(2-Hydroxyethoxy)phenyl]-2-hydroxy-2-methyl-propan-1-one; poly[2-Hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]propan-1-one]; 2-Hydroxy-1,2-diphenylethanone; or a mixture thereof, wherein said compound has been dehydrated at the position alpha to the carbonyl carbon.
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