CA2163936A1 - Smooth Thin Film Powder Coatings - Google Patents

Smooth Thin Film Powder Coatings

Info

Publication number
CA2163936A1
CA2163936A1 CA2163936A CA2163936A CA2163936A1 CA 2163936 A1 CA2163936 A1 CA 2163936A1 CA 2163936 A CA2163936 A CA 2163936A CA 2163936 A CA2163936 A CA 2163936A CA 2163936 A1 CA2163936 A1 CA 2163936A1
Authority
CA
Canada
Prior art keywords
less
powder coatings
coating powder
thin film
mil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2163936A
Other languages
French (fr)
Other versions
CA2163936C (en
Inventor
Andrew T. Daly
Navin B. Shah
Glenn D. Correll
Karl R. Wursthorn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rohm and Haas Chemicals LLC
Original Assignee
Morton International LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Morton International LLC filed Critical Morton International LLC
Publication of CA2163936A1 publication Critical patent/CA2163936A1/en
Application granted granted Critical
Publication of CA2163936C publication Critical patent/CA2163936C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/03—Powdery paints
    • C09D5/031—Powdery paints characterised by particle size or shape
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2904—Staple length fiber
    • Y10T428/2907—Staple length fiber with coating or impregnation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2927—Rod, strand, filament or fiber including structurally defined particulate matter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

Abstract

A coating powder consisting essentially of generally spherical, preferably cellular, particles ranging in size from less than 2 to 40 mu m, 75% of whose volume consist of particles of from 2 to 20 mu m in size, is provided by dissolving the components of the coating powder in a supercritical fluid without the aid of a surfactant and spraying the solution into a zone whose pressure is less than that of the fluid. A very smooth continuous film of a cured thermosettable coating powder is achieved even when the film thickness is less than 25.4 mu m (1 mil), e.g. from 5 mu m (about 0.2 mil) and greater. The advantages of powder coatings may now be realised fully in the automobile and can industries. <IMAGE>
CA002163936A 1994-12-12 1995-11-28 Smooth thin film powder coatings Expired - Fee Related CA2163936C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35430894A 1994-12-12 1994-12-12
US08/354,308 1994-12-12

Publications (2)

Publication Number Publication Date
CA2163936A1 true CA2163936A1 (en) 1996-06-13
CA2163936C CA2163936C (en) 1999-05-11

Family

ID=23392739

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002163936A Expired - Fee Related CA2163936C (en) 1994-12-12 1995-11-28 Smooth thin film powder coatings

Country Status (9)

Country Link
US (1) US5708039A (en)
EP (1) EP0720999B1 (en)
JP (1) JP2960671B2 (en)
AT (1) ATE214076T1 (en)
AU (1) AU680783B2 (en)
CA (1) CA2163936C (en)
DE (1) DE69525726T2 (en)
MX (1) MX9504934A (en)
NZ (1) NZ280542A (en)

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Also Published As

Publication number Publication date
DE69525726T2 (en) 2002-10-24
AU680783B2 (en) 1997-08-07
AU3910195A (en) 1996-06-20
NZ280542A (en) 1997-09-22
EP0720999B1 (en) 2002-03-06
DE69525726D1 (en) 2002-04-11
MX9504934A (en) 1997-01-31
ATE214076T1 (en) 2002-03-15
JPH08231903A (en) 1996-09-10
US5708039A (en) 1998-01-13
EP0720999A2 (en) 1996-07-10
JP2960671B2 (en) 1999-10-12
EP0720999A3 (en) 1996-10-23
CA2163936C (en) 1999-05-11

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