Acrylic polyol resins compositions
US-9803051-B2 · Oct 31, 2017 · US
Polycarbonate-modified acrylic resin, coating, and plastic molding coated with said coating
US9969835B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9969835-B2 |
| Application number | US-201415024321-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 10, 2014 |
| Priority date | Sep 30, 2013 |
| Publication date | May 15, 2018 |
| Grant date | May 15, 2018 |
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Abstract
Official abstract text for this publication.
Provided is a polycarbonate-modified acrylic resin obtained by reacting an unsaturated monomer mixture (B), which contains, as essential components, methyl methacrylate, an unsaturated monomer (b1) having a hydroxyl group, an unsaturated monomer (b2) having a carboxyl group, and an unsaturated monomer (b3) having an alkyl group of 2 to 8 carbon atoms, in the presence of a polycarbonate diol (A) which is produced using 1,5-pentanediol and 1,6-hexanediol as starting materials, characterized in that the mass ratio of the unsaturated monomer (b2) in the unsaturated monomer mixture (B) is in the range of 0.1% to 1.6% by mass. The polycarbonate-modified acrylic resin has high adhesion to a plastic substrate and is capable of forming a coating film having excellent abrasion resistance, chemical resistance, feel, and appearance. Therefore, the polycarbonate-modified acrylic resin can be suitably used for a coating.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polycarbonate-modified acrylic resin obtained by reacting an unsaturated monomer mixture (B), which contains, as essential components, methyl methacrylate, an unsaturated monomer (b1) having a hydroxyl group, an unsaturated monomer (b2) having a carboxyl group, and an unsaturated monomer (b3) having an alkyl group of 2 to 8 carbon atoms, in the presence of a polycarbonate diol (A) which is produced using 1,5-pentanediol and 1,6-hexanediol as starting materials, characterized in that the mass ratio of the unsaturated monomer (b2) in the unsaturated monomer mixture (B) is in the range of 0.1% to 1.6% by mass. 2. The polycarbonate-modified acrylic resin according to claim 1 , wherein the mass ratio [(A)/(B)] of the polycarbonate diol (A) to the unsaturated monomer mixture (B) is in the range of 5/95 to 70/30. 3. The polycarbonate-modified acrylic resin according to claim 1 , wherein, in the unsaturated monomer mixture (B), the mass ratio of the methyl methacrylate is in the range of 45% to 95% by mass, the mass ratio of the unsaturated monomer (b1) is in the range of 1% to 40% by mass, and the mass ratio of the unsaturated monomer (b3) is in the range of 1% to 30% by mass. 4. The polycarbonate-modified acrylic resin according to claim 1 , wherein the hydroxyl number ratio [(OHA)/(OHB)] of the hydroxyl number (OHA) originating from the polycarbonate diol (A) to the hydroxyl number (OHB) originating from the unsaturated monomer mixture (B) is in the range of 0.3 to 20. 5. A coating characterized by comprising the polycarbonate-modified acrylic resin according to claim 1 and a curing agent (C). 6. A plastic molding characterized by being coated with the coating according to claim 5 .
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Classifications
with only one layer of a composition containing a polymer binder (with more layers C08J7/042) · CPC title
Copolymers with styrene · CPC title
Copolymers with acrylonitrile · CPC title
Additives · CPC title
Characterised by the use of polycarbonates; Derivatives of polycarbonates · CPC title
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Frequently asked questions
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- What does patent US9969835B2 cover?
- Provided is a polycarbonate-modified acrylic resin obtained by reacting an unsaturated monomer mixture (B), which contains, as essential components, methyl methacrylate, an unsaturated monomer (b1) having a hydroxyl group, an unsaturated monomer (b2) having a carboxyl group, and an unsaturated monomer (b3) having an alkyl group of 2 to 8 carbon atoms, in the presence of a polycarbonate diol (A)…
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification C08F283/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 15 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).