CA2131745A1 - Low Gloss Powder Coating Composition and Method for Coating Therewith - Google Patents
Low Gloss Powder Coating Composition and Method for Coating TherewithInfo
- 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
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
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
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)
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 |
-
1994
- 1994-09-09 CA CA002131745A patent/CA2131745C/en not_active Expired - Fee Related
Cited By (4)
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
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |