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1. WO2000026308 - AQUEOUS COATING COMPOSITIONS

Publication Number WO/2000/026308
Publication Date 11.05.2000
International Application No. PCT/US1999/025078
International Filing Date 26.10.1999
Chapter 2 Demand Filed 28.04.2000
IPC
C09D 5/02 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
5Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
02Emulsion paints
C09D 17/00 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
17Pigment pastes, e.g. for mixing in paints
C09D 201/08 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
02characterised by the presence of specified groups
06containing oxygen atoms
08Carboxyl groups
CPC
C01P 2006/22
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2006Physical properties of inorganic compounds
22Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
C08J 2353/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2353Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
C08J 3/212
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
3Processes of treating or compounding macromolecular substances
20Compounding polymers with additives, e.g. colouring
205in the presence of a ; continuous; liquid phase
21the polymer being premixed with a liquid phase
212and solid additives
C09C 1/56
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
1Treatment of specific inorganic materials other than fibrous fillers
44Carbon
48Carbon black
56Treatment of carbon black ; ; Purification
C09D 17/001
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
17Pigment pastes, e.g. for mixing in paints
001in aqueous medium
C09D 17/005
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
17Pigment pastes, e.g. for mixing in paints
004containing an inorganic pigment
005Carbon black
Applicants
  • E.I. DU PONT DE NEMOURS AND COMPANY [US]/[US]
Inventors
  • HOUZE, Eric, Charles
  • MCINTYRE, Patrick, F.
  • SPINELLI, Harry, J.
  • YOKOYAMA, Ayumu
Agents
  • TESSARI, Joseph, A.
Priority Data
09/183,45830.10.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AQUEOUS COATING COMPOSITIONS
(FR) COMPOSITIONS DE REVETEMENT AQUEUSES
Abstract
(EN)
An aqueous coating composition containing: (a) an aqueous carrier medium; (b) pigment having a pH below 7.0; (c) an AB block copolymer pigment dispersant resin of 1) an A block of a hydrophobic polymer having amine groups and 2) a B block of a hydrophilic polymer having hydroxyl groups and carboxyl groups; the AB block copolymer has a number average molecular weight of 5,000-20,000 and contains 20-80 % by weight of a polymeric A segment and correspondingly 80-20 % by weight of a polymeric B segment; wherein the pigment and the dispersant are present in a pigment to dispersant weight ratio of 0.1/1 20/1; (d) a film forming polymeric binder containing carboxyl groups and (e) a crosslinking agent which on curing of the coating composition will react with the carboxyl and hydroxyl groups of the AB block copolymer and the carboxyl groups of the film forming polymeric binder. Pigment dispersions of the AB block copolymer and process for forming the dispersions also are part of this invention.
(FR)
L'invention concerne une composition de revêtement aqueuse contenant: a) un milieu excipient aqueux; b) un pigment présentant un pH inférieur à 7,0; une résine de dispersion d'un pigment d'un copolymère bloc AB renfermant 1) un bloc A d'un polymère hydrophobe pourvu de groupes aminés, et 2) un bloc B d'un polymère hydrophile pourvu de groupes hydroxyles et de groupes carboxyles, ce copolymère bloc AB présentant une masse moléculaire moyenne en nombre variant entre 5000 et 20000 et contenant entre 20 et 80 % en poids d'un segment polymère A, et de ce fait entre 80 et 20 % en poids d'un segment polymère B, le pigment et l'agent de dispersion étant présents dans un pigment selon un rapport pondéral de dispersion situé entre 0,1/1 et 20/1; d) un liant polymère filmogène contenant des groupes carboxyles; et e) un agent de réticulation qui une fois la composition de revêtement durcie, réagit avec les groupes carboxyles et hydroxyles dudit copolymère bloc AB, et avec les groupes carboxyles dudit liant polymère filmogène. Cette invention concerne également des pigments en dispersion du copolymère bloc AB, ainsi qu'un procédé d'élaboration de ces pigments en dispersion.
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