Thermosetting ring-opening metathesis polymerization materials with thermally degradable linkages
US-9688631-B2 · Jun 27, 2017 · US
Thermosetting ring-opening metathesis polymerization materials with thermally degradable linkages
US11220481B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11220481-B2 |
| Application number | US-201715632577-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 26, 2017 |
| Priority date | Mar 2, 2009 |
| Publication date | Jan 11, 2022 |
| Grant date | Jan 11, 2022 |
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Abstract
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The present invention provides a new class of thermosetting ring-opening metathesis polymerization materials based on norbornene and oxanorbornene dicarboximide moieties containing at least one acetal ester group linkage. The acetal ester group is degradable when subjected to heat or acidic aqueous hydrolysis. The polymerization materials can be used in reworkable thermosetting compositions. R1-Rs, X, and n are defined herein.
First claim
Opening claim text (preview).
We claim: 1. An oilfield composition comprising a compound represented by the following general structure: wherein X is independently CH 2 or O; R 1 and R 2 are independently selected from the group consisting of unsubstituted or substituted alkyl, cycloalkyl, alkenyl, and aryl groups—wherein any of the before mentioned groups may with or without heteroatoms; and n is from 1 to about 500. 2. The oilfield composition according to claim 1 , wherein the compound has the structure set out below: wherein R 3 is selected from the group consisting of unsubstituted or substituted alkyl, cycloalkyl, alkenyl, and aryl groups, wherein any of the before mentioned groups may with or without heteroatoms.
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Classifications
- C07D209/76Primary
with oxygen atoms in positions 1 and 3 · CPC title
unconjugated · CPC title
by a heterocyclic ring containing nitrogen · CPC title
containing carbocyclic rings other than six-membered · CPC title
Heterocyclic compounds containing rings of more than six members having one nitrogen atom and one oxygen atom as the only ring hetero atoms · CPC title
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- What does patent US11220481B2 cover?
- The present invention provides a new class of thermosetting ring-opening metathesis polymerization materials based on norbornene and oxanorbornene dicarboximide moieties containing at least one acetal ester group linkage. The acetal ester group is degradable when subjected to heat or acidic aqueous hydrolysis. The polymerization materials can be used in reworkable thermosetting compositions. R1…
- Who is the assignee on this patent?
- Isp Investments Llc
- What technology area does this patent fall under?
- Primary CPC classification C07D209/76. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 11 2022 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).