Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352922 | Method of producing an improved poly-(amide-imide) resin by reacting a phenanthrene with formaldehyde followed by oxidizing to produce a polycarboxylated product followed by reaction with an aromatic diamine | Angela M. Carswell, David I. Barnes | 1982-10-05 |
| 4350623 | Phenolated naphthalene formaldehyde resin varnish | Sally A. Brain | 1982-09-21 |
| 4346212 | Phenanthrene/HCHO derived polyamide-imide | David I. Barnes, Angela M. Carswell | 1982-08-24 |
| 4334055 | Resin derived from acenaphthene, process for its production and intermediates in its production | Sally A. Brain | 1982-06-08 |