Cyclodextrin derivatives and method for preparing the same, photoresist composition and display device
US-2015378253-A1 · Dec 31, 2015 · US
Polyrotaxane, polymer composition, crosslinked polymer composition, and production method therefor
US12503577B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12503577-B2 |
| Application number | US-202017796216-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2020 |
| Priority date | Feb 12, 2020 |
| Publication date | Dec 23, 2025 |
| Grant date | Dec 23, 2025 |
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- Title
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Abstract
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The present invention provides a crosslinked polymer composition exhibiting significantly improved elongation at break over conventional ones, and a polymer composition and a polyrotaxane, each of which can be used as a raw material of the crosslinked polymer composition. The polyrotaxane contains a linear molecule, a cyclic molecule, and a blocking group, wherein the cyclic molecule has a hydrosilyl group. The polymer composition contains the polyrotaxane and a polymer, wherein the polymer has a double bond on at least either a main chain or a side chain. The crosslinked polymer composition is produced by crosslinking of the polymer composition through chemical reaction between the hydrosilyl group of the cyclic molecule and the double bond of the polymer.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A polyrotaxane comprising a linear molecule, a cyclic molecule enclosing the linear molecule such that the cyclic molecule is skewered with the linear molecule, and blocking groups disposed at both ends of the linear molecule for preventing removal of the cyclic molecule, characterized in that: the cyclic molecule is a cyclodextrine molecule having a hydrosilyl group. 2 . A polymer composition comprising the polyrotaxane according to claim 1 , and a polymer, wherein the polymer has a double bond on at least either a main chain or a side chain. 3 . The polymer composition according to claim 2 , wherein the double bond of the polymer contains a vinylidene group. 4 . A crosslinked polymer composition produced by crosslinking of the polymer composition according to claim 2 , wherein the crosslinking is achieved through chemical reaction between the hydrosilyl group of the cyclodextrin molecule and the double bond of the polymer. 5 . A method for producing a crosslinked polymer composition, the method comprising crosslinking the polymer composition according to claim 2 in the presence of a catalyst through chemical reaction between the hydrosilyl group of the cyclodextrin molecule and the double bond of the polymer.
Assignees
Inventors
Classifications
Elastomers · CPC title
Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups · CPC title
Polyrotaxanes; Polycatenanes · CPC title
Intercrosslinking of at least two polymers · CPC title
Polyrotaxanes; Polycatenanes · CPC title
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- What does patent US12503577B2 cover?
- The present invention provides a crosslinked polymer composition exhibiting significantly improved elongation at break over conventional ones, and a polymer composition and a polyrotaxane, each of which can be used as a raw material of the crosslinked polymer composition. The polyrotaxane contains a linear molecule, a cyclic molecule, and a blocking group, wherein the cyclic molecule has …
- Who is the assignee on this patent?
- Toyoda Gosei Kk, Univ Tokyo
- What technology area does this patent fall under?
- Primary CPC classification C08L5/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 23 2025 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).