Absorvedores de radiação uv de benzotriazol dotados de maior durabilidade

Patente de Invenção: "ABSORVEDORES DE RADIAçãO UV DE BENZOTRIAZOL DOTADOS DE MAIOR DURABILIDADE''. Trata-se de absorvedores de radiação UV de benzotriazol que são substituídos na posição 5 do anel benzo por um grupo removedor de elétrons que apresentam uma maior durabilidade e taxas d...

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Hauptverfasser: MERVIN GALE WOOD JR, ROBERT EDWARD DETLEFSEN, JOSEPH SUHADOLNIK, JEAN-PIERRE WOLF, RAMANATHAN RAVICHANDRAN, ANTHONY DAVID DEBELLIS, REVATHI IYENGAR
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creator MERVIN GALE WOOD JR
ROBERT EDWARD DETLEFSEN
JOSEPH SUHADOLNIK
JEAN-PIERRE WOLF
RAMANATHAN RAVICHANDRAN
ANTHONY DAVID DEBELLIS
REVATHI IYENGAR
description Patente de Invenção: "ABSORVEDORES DE RADIAçãO UV DE BENZOTRIAZOL DOTADOS DE MAIOR DURABILIDADE''. Trata-se de absorvedores de radiação UV de benzotriazol que são substituídos na posição 5 do anel benzo por um grupo removedor de elétrons que apresentam uma maior durabilidade e taxas de perda muito baixas quando incorporados a revestimentos automotivos. Este é em particular o caso quando a posição 3 do anel fenila também é substituída por fenila ou fenilalquila tal como a-cumila. Os compostos nos quais a posição 5 do anel benzo é substituída por perfluoroalquila, tal como trifluorometila, são de interesse particular quanto à sua maior durabilidade e quanto à sua excelente solubilidade e excelentes propriedades de cor em algumas composições termoplásticas. Benzotriazole UV absorbers which are substituted at the 5-position of the benzo ring by an electron withdrawing group exhibit enhanced durability and very low loss rates when incorporated into automotive coatings. This is particularly the case when the 3-position of the phenyl ring is also substituted by phenyl or phenylalkyl such as alpha-cumyl. Compounds where the 5-position of the benzo ring are substituted by perfluoroalkyl such as trifluoromethyl are particularly of interest for both their enhanced durability and for their excellent solubility and excellent color properties in some thermoplastic compositions when the phenyl ring is substituted at the 3-position by hydrogen or tert-alkyl.
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Trata-se de absorvedores de radiação UV de benzotriazol que são substituídos na posição 5 do anel benzo por um grupo removedor de elétrons que apresentam uma maior durabilidade e taxas de perda muito baixas quando incorporados a revestimentos automotivos. Este é em particular o caso quando a posição 3 do anel fenila também é substituída por fenila ou fenilalquila tal como a-cumila. Os compostos nos quais a posição 5 do anel benzo é substituída por perfluoroalquila, tal como trifluorometila, são de interesse particular quanto à sua maior durabilidade e quanto à sua excelente solubilidade e excelentes propriedades de cor em algumas composições termoplásticas. Benzotriazole UV absorbers which are substituted at the 5-position of the benzo ring by an electron withdrawing group exhibit enhanced durability and very low loss rates when incorporated into automotive coatings. This is particularly the case when the 3-position of the phenyl ring is also substituted by phenyl or phenylalkyl such as alpha-cumyl. Compounds where the 5-position of the benzo ring are substituted by perfluoroalkyl such as trifluoromethyl are particularly of interest for both their enhanced durability and for their excellent solubility and excellent color properties in some thermoplastic compositions when the phenyl ring is substituted at the 3-position by hydrogen or tert-alkyl.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
COMPOSITIONS BASED THEREON
CORRECTING FLUIDS
DYES
FILLING PASTES
HETEROCYCLIC COMPOUNDS
INKS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
USE OF MATERIALS THEREFOR
WOODSTAINS
title Absorvedores de radiação uv de benzotriazol dotados de maior durabilidade
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