Urethane Adhesive Composition
US-2018223144-A1 · Aug 9, 2018 · US
Reactive hot-melt adhesive composition
US10174233B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10174233-B2 |
| Application number | US-201515323060-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 7, 2015 |
| Priority date | Jul 2, 2014 |
| Publication date | Jan 8, 2019 |
| Grant date | Jan 8, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A reactive hot-melt adhesive composition that is moisture curable contains: a urethane prepolymer having an isocyanate group, a (meth)acrylic resin, and an adhesion promoter containing at least an isocyanate group-containing (meth)acrylamide compound.
First claim
Opening claim text (preview).
The invention claimed is: 1. A reactive hot-melt adhesive composition that is moisture curable, the reactive hot-melt adhesive composition comprising: a urethane prepolymer having an isocyanate group; a (meth)acrylic resin; and an adhesion promoter containing at least an isocyanate group-containing (meth)acrylamide compound. 2. The reactive hot-melt adhesive composition according to claim 1 , wherein the adhesion promoter is produced by reacting a hydroxy group-containing compound having a hydroxy group and a (meth)acrylamide group with a polyisocyanate 1. 3. The reactive hot-melt adhesive composition according to claim 1 , wherein an amount of the adhesion promoter is from 1 to 5 parts by mass per 100 parts by mass total of a polyol and a polyisocyanate 2 that are used in production of the urethane prepolymer and the (meth)acrylic resin. 4. The reactive hot-melt adhesive composition according to claim 1 , wherein the urethane prepolymer is a compound produced by reacting at least one selected from the group consisting of bifunctional polyols and trifunctional polyols with polyisocyanate 2; and the bifunctional polyol is at least one type selected from the group consisting of polyoxypropylene diols, polyoxyethylene diols, and castor oil-based polyols. 5. The reactive hot-melt adhesive composition according to claim 4 , wherein a weight average molecular weight of the trifunctional polyol is 5,000 or greater. 6. The reactive hot-melt adhesive composition according to claim 4 , wherein an amount of the trifunctional polyol is from 5 to 50 mass % relative to a total amount of polyol used in production of the urethane prepolymer. 7. The reactive hot-melt adhesive composition according to claim 2 , wherein an amount of the adhesion promoter is from 1 to 5 parts by mass per 100 parts by mass total of a polyol and a polyisocyanate 2 that are used in production of the urethane prepolymer and the (meth)acrylic resin. 8. The reactive hot-melt adhesive composition according to claim 7 , wherein the urethane prepolymer is a compound produced by reacting at least one selected from the group consisting of bifunctional polyols and trifunctional polyols with polyisocyanate 2; and the bifunctional polyol is at least one type selected from the group consisting of polyoxypropylene diols, polyoxyethylene diols, and castor oil-based polyols. 9. The reactive hot-melt adhesive composition according to claim 8 , wherein a weight average molecular weight of the trifunctional polyol is 5,000 or greater. 10. The reactive hot-melt adhesive composition according to claim 9 , wherein an amount of the trifunctional polyol is from 5 to 50 mass % relative to a total amount of polyol used in production of the urethane prepolymer. 11. The reactive hot-melt adhesive composition according to claim 8 , wherein an amount of the trifunctional polyol is from 5 to 50 mass % relative to a total amount of polyol used in production of the urethane prepolymer. 12. The reactive hot-melt adhesive composition according to claim 2 , wherein the urethane prepolymer is a compound produced by reacting at least one selected from the group consisting of bifunctional polyols and trifunctional polyols with polyisocyanate 2; and the bifunctional polyol is at least one type selected from the group consisting of polyoxypropylene diols, polyoxyethylene diols, and castor oil-based polyols. 13. The reactive hot-melt adhesive composition according to claim 12 , wherein a weight average molecular weight of the trifunctional polyol is 5,000 or greater. 14. The reactive hot-melt adhesive composition according to claim 13 , wherein an amount of the trifunctional polyol is from 5 to 50 mass % relative to a total amount of polyol used in production of the urethane prepolymer. 15. The reactive hot-melt adhesive composition according to claim 12 , wherein an amount of the trifunctional polyol is from 5 to 50 mass % relative to a total amount of polyol used in production of the urethane prepolymer. 16. The reactive hot-melt adhesive composition according to claim 5 , wherein an amount of the trifunctional polyol is from 5 to 50 mass % relative to a total amount of polyol used in production of the urethane prepolymer.
Assignees
Inventors
Classifications
- C09J175/08Primary
from polyethers · CPC title
modified with higher fatty oils or their acids or by resin acids · CPC title
having terminal carbon-to-carbon unsaturated bonds · CPC title
with unsaturated monofunctional alcohols or amines · CPC title
Compositions for hot melt adhesives · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10174233B2 cover?
- A reactive hot-melt adhesive composition that is moisture curable contains: a urethane prepolymer having an isocyanate group, a (meth)acrylic resin, and an adhesion promoter containing at least an isocyanate group-containing (meth)acrylamide compound.
- Who is the assignee on this patent?
- Yokohama Rubber Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09J175/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 08 2019 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).