Hot-melt adhesive resin film and production method thereof
US-11904577-B2 · Feb 20, 2024 · US
Process for modifying polymers
US9683057B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9683057-B2 |
| Application number | US-201415034678-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 31, 2014 |
| Priority date | Nov 7, 2013 |
| Publication date | Jun 20, 2017 |
| Grant date | Jun 20, 2017 |
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- Title
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- Abstract
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Abstract
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Process for modifying a polymer in the absence of elemental sulfur amounts larger than 0.5 phr, comprising the steps of a. mixing said polymer with a maleimide-functionalized mono-azide at a temperature in the range 80-250° C. to form a functionalized polymer, and b. thermally treating the functionalized polymer at a temperature in the range 50-270° C.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for modifying a polymer in the absence of elemental sulfur amounts greater than 0.5 phr and in the absence of a peroxide, comprising (a) mixing said polymer with a maleimide-functionalized mono-azide at a temperature in the range 80-250° C. to form a polymer containing maleimide functionalities, and (b) thermally treating the polymer containing maleimide functionalities at a temperature in the range 150-270° C. 2. The process according to claim 1 wherein the polymer is an elastomer. 3. The process according to claim 2 wherein the elastomer is natural rubber (NR), styrene butadiene rubber (SBR), butadiene rubber (BR), butyl rubber (IIR), ethylene propylene copolymer elastomer (EPM), ethylene propylene diene terpolymer elastomer (EPDM), or ethylene vinylacetate copolymer (EVA). 4. The process according to claim 1 wherein the polymer is a polyolefin. 5. The process according to claim 4 wherein the polyolefin polystyrene, polyethylene, polypropylene, or a copolymers of ethylene and/or propylene. 6. The process according to claim 1 wherein the polymer is polylactic acid. 7. The process according to claim 1 wherein the maleimide-functionalized azide has the following structure: wherein Y is m is 0 or 1, n is 0 or 1, n+m=1 or 2, and X is a linear or branched, aliphatic or aromatic hydrocarbon moiety with 1-12 carbon atoms, optionally containing heteroatoms. 8. A process for modifying a polymer in the absence of elemental sulfur amounts greater than 0.5 phr, comprising (a) mixing said polymer with a maleimide-functionalized mono-azide in the absence of a peroxide at a temperature in the range 80-250° C. to form a polymer containing maleimide functionalities, and (b) adding an anionic polymerization catalyst, a C-C initiator, or a peroxide and thermally treating the polymer containing maleimide functionalities at a temperature in the range 150-270° C. 9. The process according to claim 8 wherein the polymer is an elastomer. 10. The process according to claim 9 wherein the elastomer is natural rubber (NR), styrene butadiene rubber (SBR), butadiene rubber (BR), butyl rubber (IIR), ethylene propylene copolymer elastomer (EPM), ethylene propylene diene terpolymer elastomer (EPDM), or ethylene vinylacetate copolymer (EVA). 11. The process according to claim 8 wherein the polymer is a polyolefin. 12. The process according to claim 11 wherein the polyolefin is polystyrene, polyethylene, polypropylene, or a copolymer of ethylene and/or propylene. 13. The process according to claim 8 wherein the polymer is polylactic acid. 14. The process according to claim 8 wherein the maleimide-functionalized azide has the following structure: wherein Y is m is 0 or 1, n is 0 or 1, n+m=1 or 2, and X is a linear or branched, aliphatic or aromatic hydrocarbon moiety with 1-12 carbon atoms, optionally containing heteroatoms.
Assignees
Inventors
Classifications
- C08L51/003Primary
grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds (C08L51/04, C08L51/06 take precedence) · CPC title
- C08K5/28Primary
Azides · CPC title
by reaction with nitrogen-containing compounds, e.g. by nitration · CPC title
Polyesters derived from hydroxycarboxylic acids, e.g. lactones (C08L67/06 takes precedence) · CPC title
grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond · CPC title
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- What does patent US9683057B2 cover?
- Process for modifying a polymer in the absence of elemental sulfur amounts larger than 0.5 phr, comprising the steps of a. mixing said polymer with a maleimide-functionalized mono-azide at a temperature in the range 80-250° C. to form a functionalized polymer, and b. thermally treating the functionalized polymer at a temperature in the range 50-270° C.
- Who is the assignee on this patent?
- Akzo Nobel Chemicals Int Bv
- What technology area does this patent fall under?
- Primary CPC classification C08L51/003. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 20 2017 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).