Functional materials with reversible crosslinking
US-9550851-B2 · Jan 24, 2017 · US
Thermally reversible polymer cross-linking for pressure sensitive adhesives
US10731053B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10731053-B2 |
| Application number | US-201615778527-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 21, 2016 |
| Priority date | Nov 23, 2015 |
| Publication date | Aug 4, 2020 |
| Grant date | Aug 4, 2020 |
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- Title
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- Abstract
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Abstract
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A thermally reversible adhesive comprising a) a copolymer of i) a conjugated diene acrylate or methacrylate and ii) at least one acrylic monomer; and b) a bismaleimide crosslinking agent, a process for its preparation, and various end uses, are disclosed.
First claim
Opening claim text (preview).
What is claimed is: 1. A thermally reversible adhesive composition comprising a) a copolymer of i) a conjugated diene acrylate or methacrylate and ii) at least one acrylic monomer; and b) a bismaleimide crosslinking agent, wherein the bismaleimide crosslinking agent is bis(3-ethyl-5-methyl-4-maleimidophenyl)methane. 2. The thermally reversible adhesive composition of claim 1 further comprising a tackifier. 3. The thermally reversible adhesive composition of claim 1 wherein the conjugated diene acrylate or methacrylate is furfuryl methacrylate. 4. The thermally reversible adhesive composition of claim 1 wherein the furfuryl methacrylate functionality is present in the copolymer in a range of from 0.5 weight percent to 10 weight percent. 5. A process for preparing the thermally reversible adhesive composition of claim 1 comprising admixing a) a copolymer of i) a conjugated diene acrylate or methacrylate; and ii) at least one acrylic monomer; and b) a bismaleimide crosslinking agent wherein the bismaleimide crosslinking agent is bis(3-ethyl-5-methyl-4-maleimidophenyl)methane. 6. The process of claim 5 , wherein the conjugated diene acrylate is furfuryl methacrylate. 7. A heat-activated pressure-sensitive adhesive composition prepared from the thermally reversible adhesive composition of claim 1 . 8. A heat-seal coating prepared from the thermally reversible adhesive composition of claim 1 . 9. An in-mold label prepared from the thermally reversible adhesive composition of claim 1 . 10. A linerless label prepared from the thermally reversible adhesive composition of claim 1 .
Assignees
Inventors
Classifications
C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate · CPC title
- C08K5/3415Primary
Five-membered rings · CPC title
- C09J7/385Primary
Acrylic polymers · CPC title
Homopolymers or copolymers of acrylic acid esters · CPC title
Methyl esters {, e.g. methyl (meth)acrylate} · CPC title
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- What does patent US10731053B2 cover?
- A thermally reversible adhesive comprising a) a copolymer of i) a conjugated diene acrylate or methacrylate and ii) at least one acrylic monomer; and b) a bismaleimide crosslinking agent, a process for its preparation, and various end uses, are disclosed.
- Who is the assignee on this patent?
- Rohm & Haas
- What technology area does this patent fall under?
- Primary CPC classification C08K5/3415. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 04 2020 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).