Back to results
US 11,220,481 B2Granted
Thermosetting ring-opening metathesis polymerization materials with thermally degradable linkages
AssigneeISP Investments Inc.
InventorsOsama M. Musa, Ezat Khosravi
Life of this patent
Estimating the term…
Abstract
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.
Claims2
An oilfield composition comprising a compound represented by the following general structure:
- wherein X is independently CH2 or O;
- R1 and R2 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.
Dependencies are inferred from the claim text.