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1. WO1996040832 - THERMOSET COATING COMPOSITIONS HAVING IMPROVED HARDNESS AND CURING PROPERTIES

Publication Number WO/1996/040832
Publication Date 19.12.1996
International Application No. PCT/US1996/010000
International Filing Date 07.06.1996
Chapter 2 Demand Filed 06.01.1997
IPC
C09D 167/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
167Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
C09D 201/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
201Coating compositions based on unspecified macromolecular compounds
CPC
C09D 167/00
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
167Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain
C09D 201/00
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
201Coating compositions based on unspecified macromolecular compounds
Applicants
  • EXXON CHEMICAL PATENTS INC. [US]/[US]
Inventors
  • YEZRIELEV, Albert, Ilya
  • RIGOPOULOS, Konstantinos, R.
  • SWARUP, Vijay
Agents
  • HUNT, John, F.
Priority Data
08/480,07607.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) THERMOSET COATING COMPOSITIONS HAVING IMPROVED HARDNESS AND CURING PROPERTIES
(FR) COMPOSITIONS DE REVETEMENT THERMODURCIES AUX PROPRIETES DE DURETE ET DE DURCISSEMENT AMELIOREES
Abstract
(EN)
The present invention provides an amino curable polyester oligomer composition having low viscosity and a narrow molecular weight distribution comprising one or a mixture of oligomers (a) and (b), wherein R is the residue of at least one aliphatic, cycloaliphatic or mixed aliphatic/aromatic polycarboxylic acid having from 2 to about 20 carbon atoms, R1 is the residue of at least one aliphatic, cycloaliphatic or mixed aliphatic/cycloaliphatic polyol having from 2 to about 20 carbon atoms, A is a radical of formula (I); B is a radical of formula (II), wherein R4 is H, OH, halogen or an organic radical containing 1 to 4 carbon atoms, R5 is a direct bond or an organic radical containing 1 to 20 carbon atoms and R6 is an organic radical containing 2 to 20 carbon atoms, n is a number averaging from greater than 0 up to less than 2 and P is a number averaging from about 0.5 up to less than 2, said composition further characterized by a number average molecular weight in the range of from about 250 to about 1,000 and a polydispersity of less than about 2.0. The invention also provides for curable blends of these polyester oligomers with other polymers such as polyesters, alkyds, acrylic polymers and the like, which may be further used to prepare curable coating and paint formulations, and also may contain other ingredients such as a cross-linking catalyst, fillers, pigments and the like. When cured, the coatings of this invention exhibit improved physical and chemical properties when compared with cured coatings which do not contain the polyester oligomer component.
(FR)
La présente invention se rapporte à une composition durcissable oligomère d'amino polyester ayant une faible viscosité et une répartition étroite de la masse moléculaire, cette composition comprenant au moins un mélange d'oligomères (a) et (b), dans lequel R représente le reste d'au moins un acide polycarboxylique aliphatique, cycloaliphatique ou aliphatique/aromatique possédant de 2 à environ 20 atomes de carbone, R1 représente le reste d'au moins un polyol aliphatique, cycloaliphatique ou aliphatique/cycloaliphatique possédant de 2 à 20 atomes de carbone, A représente un radical de la formule (I); B représente un radical de la formule (II). Dans ces formules, R4 représente H, OH, halogène ou un radical organique contenant de 1 à 4 atomes de carbone, R5 représente une liaison directe ou un radical organique contenant de 1 à 20 atomes de carbone et R6 représente un radical organique contenant de 2 à 20 atomes de carbone, n représente une valeur moyenne comprise entre 0 et 2 et P représente une valeur moyenne comprise entre 0,5 et 2. Cette composition se caractérise également par un poids moléculaire moyen en nombre compris entre environ 250 et environ 1 000 et une polydispersion inférieure à environ 2. L'invention se rapporte en outre à des mélanges durcissables de ces oligomères polyesters avec d'autres polymères tels que des polyesters, alkydes, polymères acryliques et autres, qui peuvent être également utilisés pour préparer des formulations durcissables de peintures et revêtements, et peuvent aussi contenir d'autres ingrédients tels qu'un catalyseur de réticulation, des charges, pigments et autres. Lorsqu'ils sont durcis, ces revêtements présentent de meilleures propriétés physiques et chimiques par rapport aux revêtements durcis qui ne contiennent pas le composant oligomère polyester.
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