Chain-extending nitrile end-capped polyimides
Patent
Description
Aromatic polyimides with nitrile end groups are chain-extended (molecular weight increased) by polymerization using Lewis acid salts as catalyst. Molecular weights are increased with little or no by-product formation. These polyimides can be shaped and formed prior to the polymerization. The aromatic polyimides appropriate for chain-extending are formed by the reaction of aromatic dianhydrides, aromatic diamines and nitrile compounds such as aminobenzyl cyanide and aminobenzonitrile.
Attributes
| Attribute Name | Values |
|---|
| Title |
|
|---|
| Patent Number |
|
|---|
| USPTO Link |
|
|---|
| Inventor |
|
|---|
| Inventor From Local Institution |
|
|---|
| Other Application |
|
|---|
| Claims |
|
|---|
| Classification (US Patent) |
|
|---|
| Cooperative Patent Classification codes |
|
|---|
| International Patent Classification codes |
|
|---|
| Language |
|
|---|
| Date Issued |
|
|---|
| Publisher |
|
|---|
| Assignee |
|
|---|
| Record Visibility and Access |
Public
|
| Content License |
|
|---|
| Departments and Units |
|
|---|
| Member of |
|
|---|