Lignin resin composition, cured product, and molded product
US-2017342188-A1 · Nov 30, 2017 · US
Lignin based coating compositions
US10913824B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10913824-B2 |
| Application number | US-201816106450-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 21, 2018 |
| Priority date | Dec 18, 2012 |
| Publication date | Feb 9, 2021 |
| Grant date | Feb 9, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The current invention includes coating compositions having a lignin, methods for coating substrates using the coating compositions, and substrates coated with the coating compositions. In some embodiments of the invention, a coating composition having a mixture of a) a lignin, b) a solvent, and c) a crosslinker, wherein the lignin has a neutral or negative charge. The current invention also includes a coating composition having a mixture of a) a lignin, b) a polymeric epoxy crosslinker having glycidyl (meth)acrylate, and c) a solvent. Additionally, the current invention includes a coating composition having a mixture of a) a lignin, b) a solvent, and c) a phenolic crosslinker.
First claim
Opening claim text (preview).
What is claimed is: 1. A methodof coating a substrate being a can or packaging for food or beverages, comprising the steps of: applying a coating composition comprising: an unmodified lignin; a polymeric epoxy crosslinker, wherein the polymeric epoxy crosslinker includes glycidyl (meth)acrylate; and a solvent to the can or packaging for food or beverages, and curing the coating composition at a temperature in a range from about 130 degrees Celsius to about 250 degrees Celsius to obtain a coated can or packaging for food or beverages; wherein the coating composition is substantially free of bisphenol A. 2. The method of claim 1 , wherein the coating composition includes polymeric dispersions having between about 10% to about 60% by weight polymeric solids. 3. The method of claim 1 , wherein the lignin has a neutral or a negative charge. 4. The method of claim 1 , wherein the composition is sprayed or roll coated onto the substrate. 5. A can or packaging usable for packaging food that is coated with the coating composition of claim 1 . 6. A method of coating a substrate being a can or packaging for food or beverages, comprising the steps of: applying a coating composition that is substantially free of bisphenol A, said coating composition comprising: an unmodified lignin; a polymeric epoxy crosslinker, wherein the polymeric epoxy crosslinker includes glycidyl (meth)acrylate; and a solvent to the can or packaging for food or beverages and thermally curing the coating composition at a temperature in a range from about 130 degrees Celsius to about 250 degrees Celsius to obtain a coated can or packaging for food or beverages. 7. The method of claim 6 , wherein the lignin has a neutral or a negative charge. 8. The method of claim 6 , wherein the coating composition includes polymeric dispersions having between about 10% to about 60% by weight polymeric solids. 9. A can or packaging usable for packaging food coated with the coating composition of claim 6 .
Assignees
Inventors
Classifications
Coating compositions based on lignin-containing materials (based on polysaccharides C09D101/00 - C09D105/00) · CPC title
- C08H6/00Primary
Macromolecular compounds derived from lignin, e.g. tannins, humic acids · CPC title
- C08G18/64Primary
Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63 · CPC title
Of epoxy ether · CPC title
Lignin containing materials; Wood resins; Wood tars; Derivatives thereof · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10913824B2 cover?
- The current invention includes coating compositions having a lignin, methods for coating substrates using the coating compositions, and substrates coated with the coating compositions. In some embodiments of the invention, a coating composition having a mixture of a) a lignin, b) a solvent, and c) a crosslinker, wherein the lignin has a neutral or negative charge. The current invention also inc…
- Who is the assignee on this patent?
- Akzo Nobel Coatings Int Bv
- What technology area does this patent fall under?
- Primary CPC classification C08H6/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 09 2021 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).