Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431770 | Wholly aromatic polyester comprising 4-oxy-4'-carboxybiphenyl moiety which is capable of forming an anisotropic melt phase | Gordon Calundann | 1984-02-14 |
| 4421908 | Preparation of polyesters by direct condensation of hydroxynaphthoic acids, aromatic diacids and aromatic diols | — | 1983-12-20 |
| 4393191 | Preparation of aromatic polyesters by direct self-condensation of aromatic hydroxy acids | — | 1983-07-12 |
| 4375530 | Polyester of 2,6-naphthalene dicarboxylic acid, 2,6-dihydroxy naphthalene, terephthalic acid, and hydroquinone capable of forming an anisotropic melt | Ian L. Hay, Gordon Calundann | 1983-03-01 |
| 4371660 | Anisotropic melt phase forming poly(ester-carbonate) derived from 6-hydroxy-2-napthoic acid, aromatic diol, organic compound capable of forming a carbonate linkage, and, optionally, other aromatic hydroxy-acid and carbocyclic dicarboxylic acid | Gordon Calundann | 1983-02-01 |
| 4355133 | Polyester of 6-hydroxy-2-naphthoic acid, 4-hydroxy benzoic acid, 1,4-cyclohexanedicarboxylic acid, and aromatic diol capable of readily undergoing melt processing to form articles possessing high impact properties | Gordon Calundann | 1982-10-19 |
| 4355132 | Anisotropic melt phase forming poly(ester-amide) derived from p-hydroxybenzoic acid, 2,6-naphthalenedicarboxylic acid, aromatic monomer capable of forming an amide linkage, and, optionally, hydroquinone and additional carbocyclic dicarboxylic acid | Gordon Calundann, Larry F. Charbonneau | 1982-10-19 |
| 4351917 | Poly(ester-amide) capable of forming an anisotropic melt phase derived from 6-hydroxy-2-naphthoic acid, aromatic monomer capable of forming an amide linkage, and other aromatic hydroxyacid | Gordon Calundann, Larry F. Charbonneau | 1982-09-28 |
| 4351918 | Poly(ester-amide) capable of forming an anisotropic melt phase derived from 6-hydroxy-2-naphthoic acid, other aromatic hydroxyacid, carbocyclic dicarboxylic acid, and aromatic monomer capable of forming an amide linkage | Larry F. Charbonneau, Gordon Calundann | 1982-09-28 |
| 4341688 | Poly(ester-amide) capable of forming an anisotropic melt phase derived from dihydroxyanthraquinone, hydroxybenzoic acid, dicarboxylic acid, and aromatic monomer capable of forming an amide linkage | Larry F. Charbonneau, Gordon Calundann | 1982-07-27 |
| 4339375 | Poly(ester-amide) capable of forming an anisotropic melt phase derived from p-hydroxybenzoic acid, 2,6-dihydroxynaphthalene, carbocyclic dicarboxylic acid, aromatic monomer capable of forming an amide linkage, and, optionally, additional aromatic diol | Gordon Calundann, Larry F. Charbonneau | 1982-07-13 |
| 4330457 | Poly(ester-amide) capable of forming an anisotropic melt phase derived from 6-hydroxy-2-naphthoic acid, dicarboxylic acid, and aromatic monomer capable of forming an amide linkage | Larry F. Charbonneau, Gordon Calundann | 1982-05-18 |
| 4318842 | Polyester of 6-hydroxy-2-naphthoic acid, aromatic diol, and 1,4-cyclohexanedicarboxylic acid capable of undergoing melt processing | Gordon Calundann | 1982-03-09 |
| 4318841 | Polyester of 6-hydroxy-2-naphthoic acid, para-hydroxy benzoic acid, terephthalic acid, and resorcinol capable of readily undergoing melt processing to form shaped articles having increased impact strength | Gordon Calundann | 1982-03-09 |
| 4285852 | Anisotropic wholly aromatic polyester derived from 4-hydroxy-4'-carboxy azobenzene and process for preparation | — | 1981-08-25 |