CA2131745A1 - Low Gloss Powder Coating Composition and Method for Coating Therewith - Google Patents

Low Gloss Powder Coating Composition and Method for Coating Therewith

Info

Publication number
CA2131745A1
CA2131745A1 CA2131745A CA2131745A CA2131745A1 CA 2131745 A1 CA2131745 A1 CA 2131745A1 CA 2131745 A CA2131745 A CA 2131745A CA 2131745 A CA2131745 A CA 2131745A CA 2131745 A1 CA2131745 A1 CA 2131745A1
Authority
CA
Canada
Prior art keywords
polyester resin
dyn
hardener
low gloss
range
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
CA2131745A
Other languages
French (fr)
Other versions
CA2131745C (en
Inventor
Takafumi Umehara
Eiji Shimada
Tadashi Sugimoto
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.)
BASF Japan Ltd
Original Assignee
NOF Corp
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 NOF Corp filed Critical NOF Corp
Priority to CA002131745A priority Critical patent/CA2131745C/en
Publication of CA2131745A1 publication Critical patent/CA2131745A1/en
Application granted granted Critical
Publication of CA2131745C publication Critical patent/CA2131745C/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
    • 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paints Or Removers (AREA)

Abstract

A powder coating composition for forming a low gloss coating film based on thermosetting polyester resins exhibiting only a little fluctuation of the resultant low gloss value even if an unequality in the mixing proportion of components or in the baking condition exists, comprising three thermosetting polyester resins (A), (B) and (C) and a hardener (D), wherein the weight ratio of the polyester resin (A) to the polyester resin (B) is in the range of 90/10 70/30 and that of the polyester resin (A) to the polyester resin (C) is in the range of 85/15 - 60/40 and the equivalent ratio of the polyester resin (A, B
or C) to the hardener (D) is each in the range of 0.8 to 1.25 and wherein the polyester resins (A), (B) and (C) are selected from those in which the moduli of elasticity Ea, Eb and Ec for the products of the curing reaction of these resins with the hardener (D), respectively, after 3 minutes' curing with the hardener (D) at 200°C hold a relatioship that the differences between the moduli of elasticity Eb - a = Eb - Ea and Ec - a = Ec - Ea are maintained in the following ranges, respectively:
20 dyn/cm < Eb - a < 103 dyn/cm and 1 dyn/cm < Ec - a < 10 dyn/cm
CA002131745A 1994-09-09 1994-09-09 Low gloss powder coating composition and method for coating therewith Expired - Fee Related CA2131745C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002131745A CA2131745C (en) 1994-09-09 1994-09-09 Low gloss powder coating composition and method for coating therewith

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002131745A CA2131745C (en) 1994-09-09 1994-09-09 Low gloss powder coating composition and method for coating therewith

Publications (2)

Publication Number Publication Date
CA2131745A1 true CA2131745A1 (en) 1996-03-10
CA2131745C CA2131745C (en) 1999-04-27

Family

ID=4154290

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002131745A Expired - Fee Related CA2131745C (en) 1994-09-09 1994-09-09 Low gloss powder coating composition and method for coating therewith

Country Status (1)

Country Link
CA (1) CA2131745C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115505112A (en) * 2022-10-26 2022-12-23 安徽永利新材料科技有限公司 Low-cost and low-gloss polyester resin for powder coating and preparation method thereof
CN116057139A (en) * 2020-12-30 2023-05-02 株式会社Kcc Powder coating composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116057139A (en) * 2020-12-30 2023-05-02 株式会社Kcc Powder coating composition
CN116057139B (en) * 2020-12-30 2024-05-10 株式会社Kcc Powder coating composition
CN115505112A (en) * 2022-10-26 2022-12-23 安徽永利新材料科技有限公司 Low-cost and low-gloss polyester resin for powder coating and preparation method thereof
CN115505112B (en) * 2022-10-26 2023-09-19 安徽永利新材料科技有限公司 Low-cost low-light type polyester resin for powder coating and preparation method thereof

Also Published As

Publication number Publication date
CA2131745C (en) 1999-04-27

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Legal Events

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