LIGHT-COLORED ROSIN AND ROSIN ESTER COMPOSITIONS

LIGHT-COLORED ROSIN AND ROSIN ESTER COMPOSITIONS

A three-step method to prepare a light-colored rosin ester is disclosed wherein at least in one of the steps (a) and (c) a co-catalyst is applied and wherein at least in one of the steps (a) and (c) a disproportionation catalyst is applied. In the second step, a distilled rosin is obtained which is...

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Hauptverfasser: LANGE, Jos H. M, SCHAAPMAN, Mark C
Format: Patent
Sprache:eng ; fre ; ger
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ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DRIERS (SICCATIVES)
DRYING-OILS
DYES
FRENCH POLISH
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
TURPENTINE
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creator LANGE, Jos H. M
SCHAAPMAN, Mark C
description A three-step method to prepare a light-colored rosin ester is disclosed wherein at least in one of the steps (a) and (c) a co-catalyst is applied and wherein at least in one of the steps (a) and (c) a disproportionation catalyst is applied. In the second step, a distilled rosin is obtained which is esterified with a polyol into a light-colored rosin ester. In one embodiment, the co-catalyst has a triplet formation quantum yield (φT) of greater than 0.5 and a triplet lifetime (τT) of greater than 0.5 microseconds. In another embodiment, the co-catalyst is selected from acridone, anthrone, 9-fluorenone, thioxanthone, xanthone, derivatives and combinations thereof.
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M ; SCHAAPMAN, Mark C</creatorcontrib><description>A three-step method to prepare a light-colored rosin ester is disclosed wherein at least in one of the steps (a) and (c) a co-catalyst is applied and wherein at least in one of the steps (a) and (c) a disproportionation catalyst is applied. In the second step, a distilled rosin is obtained which is esterified with a polyol into a light-colored rosin ester. In one embodiment, the co-catalyst has a triplet formation quantum yield (φT) of greater than 0.5 and a triplet lifetime (τT) of greater than 0.5 microseconds. 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subjects ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DRIERS (SICCATIVES)
DRYING-OILS
DYES
FRENCH POLISH
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
TURPENTINE
title LIGHT-COLORED ROSIN AND ROSIN ESTER COMPOSITIONS
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