84268-36-0Relevant academic research and scientific papers
Preparation method of 3-[3-(-benzotriazole -2-base)-4-hydroxy -5-tert-butylphenyl]- propionate (by machine translation)
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, (2020/05/08)
3 - (3,5 - Of the process reduces, the tedious degree) of the process, omits the crystallization separation process, in the preparation process of the target product, saves the raw material ", and reduces the output " of waste, water and inorganic salt and other wastes 3 - [3 - (.) - 4 - The method, of the, present invention reduces the complexity, of the process by the. method] - of separating, and purifying the intermediate product, without isolation. (by machine translation)
Novel polycyclic compound
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Paragraph 0364; 0367, (2020/07/06)
The invention provides a novel polycyclic compound as well as a synthesis method and application thereof. The compound of the present invention includes a plurality of carbocyclic and/or heterocyclicstructures having visible or fluorescent light emitting groups and covalently bonded to at least one ultraviolet and/or visible (blue) light absorbing group to provide stability. The compound providedby the invention can be used as a light conversion agent, a dye, a pigment, a fluorescent agent and an ultraviolet light or blue light absorbent, and can be applied to optical films, agricultural films, optical discs (disks), optical lenses, goggles, skin care, cosmetics, illumination, coatings, adhesives, light stabilizers, panels and other products.
SUNSCREEN COMPOSITIONS CONTAINING A COMBINATION OF A LINEAR ULTRAVIOLET RADIATION-ABSORBING POLYETHER AND OTHER ULTRAVIOLET-SCREENING COMPOUNDS
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Page/Page column 40; 41, (2018/02/24)
Sunscreen composition including a combination of a linear ultraviolet radiation absorbing polyether that includes a covalently bound UV-chromophore, and at least one non-polymeric UV-screening compounds.
SUNSCREEN COMPOSITIONS CONTAINING AN ULTRAVIOLET RADIATION-ABSORBING POLYMER
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Paragraph 0104; 0106; 0107, (2014/02/15)
Compositions including a discontinuous oil phase homogeneously dispersed in a continuous water phase, the oil phase containing a sunscreen agent that includes a polymer composition containing a linear, ultraviolet radiation absorbing polyether, the linear
Composition comprising pesticide and benzotriazole UV absorbers
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Page/Page column 6, (2012/03/26)
The present invention relates to an agrochemical composition comprising pesticide and UV absorber. The invention furthermore relates to UV-absorbers and to the use thereof in agrochemical compositions. It moreover relates to a method of controlling phytopathogenic fungi and/or undesirable plant growth and/or undesirable insect or mite infestation and/or of regulating plant growth.
Processes for the preparation of benzotriazole UV absorbers
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, (2008/06/13)
Provided is a process for preparing 2H-benzotriazole UV absorbers containing a perfluoroalkyl moiety at the 5-position of the benzo ring, for example a trifluoromethyl group, which involves diazotizing the perfluoroalkyl substituted o-nitroaniline using concentrated sulfuric acid plus sodium nitrite or nitrosylsulfuric acid to form the corresponding monoazobenzene intermediate via the diazonium salt intermediate which is reduced to the corresponding 5-perfluoroalkyl substituted 2H-benzotriazole UV absorber compound by conventional reduction means. Also provided is a novel one-pot, multiphase reaction for the preparation of 2(2-nitrophenylazo) substituted phenols, which are precursors for 2H-benzotriazole UV absorbers.
2-(2-Hydroxyphenyl)-benztriazoles, their use as UV-absorbers and their preparation
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, (2008/06/13)
The novel UV-absorbers are compounds of the formula STR1 in which R1 is, for example, hydrogen, n is one of the numbers 1 or 2 and R2 is an appropriate monovalent or divalent radical, for example --OH or --O--CH2 CH2 --O--. The UV-absorbers are used in particular for stabilising and improving lacquers and photographic material.
