Powder coating material, coated article, and method for producing coated article
US-2017335117-A1 · Nov 23, 2017 · US
Low reflectance chemical agent resistant coating compositions
US9890289B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9890289-B2 |
| Application number | US-201514603623-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 23, 2015 |
| Priority date | Aug 20, 2008 |
| Publication date | Feb 13, 2018 |
| Grant date | Feb 13, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A powder coating composition comprising: (a) a first acrylic powder resin having a hydroxyl value of at least about 180; (b) a second acrylic powder resin having a hydroxyl value less than about 45; (c) a crosslinker reactive with the hydroxyl functional acrylic resins; and (d) wollastonite.
First claim
Opening claim text (preview).
I claim: 1. A process for producing a low gloss powder coating which process comprises: (a) extruding and grinding a first powder composition to form an extruded and ground first powder composition comprising a crosslinker and a first acrylic powder resin having a hydroxyl value of at least about 180; and (b) extruding and grinding second powder composition to form an extruded and ground second powder composition comprising a crosslinker and a second acrylic powder resin having a hydroxyl value less than about 45; and (c) combining the extruded and ground a first powder composition and the extruded and ground second powder composition to provide a weight ratio of the first acrylic resin to the second acrylic resin greater than 1.0. 2. The process of claim 1 wherein at least one of the first powder composition or the second powder composition comprises wollastonite.
Assignees
Inventors
Classifications
Printing inks (C09D11/30 takes precedence) · CPC title
based on natural resins · CPC title
Homopolymers or copolymers of methacrylic acid esters · CPC title
characterised by a special effect of the produced film, e.g. wrinkle, pearlescence, matt finish · CPC title
containing at least one Si—O bond · CPC title
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Frequently asked questions
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- What does patent US9890289B2 cover?
- A powder coating composition comprising: (a) a first acrylic powder resin having a hydroxyl value of at least about 180; (b) a second acrylic powder resin having a hydroxyl value less than about 45; (c) a crosslinker reactive with the hydroxyl functional acrylic resins; and (d) wollastonite.
- Who is the assignee on this patent?
- Sherwin Williams Co
- What technology area does this patent fall under?
- Primary CPC classification C09D5/035. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 13 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).