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US-9604391-B2 · Mar 28, 2017 · US
Benzophenone derivative, aqueous copolymer dispersion and aqueous coating composition
US11292889B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11292889-B2 |
| Application number | US-201616317860-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 17, 2016 |
| Priority date | Aug 17, 2016 |
| Publication date | Apr 5, 2022 |
| Grant date | Apr 5, 2022 |
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- Title
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- Abstract
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Abstract
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The present invention relates to a benzophenone derivative and an aqueous copolymer dispersion comprising the benzophenone derivative. This invention also relates to an aqueous coating composition comprising the aqueous copolymer dispersion. The benzophenone derivative provides better crosslinking efficiency and improvement to dirt pick up resistance performance.
First claim
Opening claim text (preview).
What is claimed is: 1. An aqueous copolymer dispersion comprising (a) an aqueous emulsion copolymer; and (b) from 0.05% to 3% by weight, based on the dry weight of the copolymer, of the benzophenone derivative represented by Formula A: wherein R 1 and R 2 are independently an alkyl group or a substituted alkyl group, and R 3 is hydrogen or has a structure of Formula B: wherein R 4 and R 5 are independently an alkyl group or a substituted alkyl group. 2. The aqueous copolymer dispersion of claim 1 , wherein the aqueous copolymer dispersion comprises from 0.2% to 0.8% by weight, based on the dry weight of the copolymer, of the benzophenone derivative. 3. The aqueous copolymer dispersion of claim 1 , wherein the aqueous emulsion copolymer further comprises up to 5% by weight, based on the dry weight of the copolymer, of copolymerized multi-ethylenically unsaturated monomers. 4. The aqueous copolymer dispersion of claim 1 , wherein the aqueous emulsion copolymer has a glass transition temperature of −70° C. to +70° C. 5. The aqueous copolymer dispersion of claim 1 , wherein the aqueous emulsion copolymer comprises, as copolymerized units, at least 90% by weight, based on the dry weight of the copolymer, of an ethylenically unsaturated nonionic monomer; and up to 10% by weight, based on the dry weight of the copolymer, of an ethylenically unsaturated stabilizer monomer. 6. An aqueous coating composition comprising the aqueous copolymer dispersion of claim 1 .
Assignees
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Classifications
organic · CPC title
Aqueous dispersion, e.g. containing polymers with a glass transition temperature (Tg) above 20°C · CPC title
Homopolymers or copolymers of acrylic acid esters · CPC title
Coating compositions based on homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic system; Coating compositions based on derivatives of such polymers (based on polymers of cyclic esters of polyfunctional acids C09D131/00; based on polymers of cyclic anhydrides or imides C09D135/00) · CPC title
- C08K5/18Primary
with aromatically bound amino groups · CPC title
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- What does patent US11292889B2 cover?
- The present invention relates to a benzophenone derivative and an aqueous copolymer dispersion comprising the benzophenone derivative. This invention also relates to an aqueous coating composition comprising the aqueous copolymer dispersion. The benzophenone derivative provides better crosslinking efficiency and improvement to dirt pick up resistance performance.
- Who is the assignee on this patent?
- Dow Global Technologies Llc, Rohm & Haas
- What technology area does this patent fall under?
- Primary CPC classification C08K5/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 05 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).