Gordon W Calundann (1 - 10 of 50 results)


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Garo Khanarian
Garo Khanarian, Donald Raskin, Alan Buckley, Gordon W Calundann, Anthony J East: Copolymeric nonlinear optical media. Hoechst Celanese, Depaoli & O Brien, September 18, 1990: US04957655 (15 worldwide citation)

In a preferred embodiment this invention provides a second order nonlinear optical film medium which consists of a thermoplastic copolymer which has a crystallographic molecular alignment, and a net dipolar molecular orientation normal to the film plane. The crystallographic molecular alignment is f ...

2
Gordon W Calundann: Polyester of 6-hydroxy-2-naphthoic acid and para-hydroxy benzoic acid capable of readily undergoing melt processing. Celanese Corporation, Kenneth A Genoni, July 17, 1979: US04161470 (206 worldwide citation)

A novel polyester is provided which has been found to exhibit a thermotropic melt phase at a temperature which enables it readily to undergo melt processing to form quality fibers, molded articles, etc. The polyester of the present invention is formed primarily of recurring 6-oxy-2-naphthoyl and p-o ...

3
Gordon W Calundann, Herbert L Davis, Frederick J Gorman, Robert M Mininni: Melt processable thermotropic wholly aromatic polyester. Celanese Corporation, April 11, 1978: US04083829 (161 worldwide citation)

A wholly aromatic polyester is provided which has been found to be highly amenable to melt extrusion to yield high performance fibers. Such fibers following thermal treatment exhibit high tenacity and tensile modulus properties which are well retained at elevated temperatures while exhibiting a low ...

4
Gordon W Calundann: Melt processable thermotropic wholly aromatic polyester containing polybenzoyl units. Celanese Corporation, January 10, 1978: US04067852 (142 worldwide citation)

A wholly aromatic polyester is provided which unlike the aromatic polyesters normally encountered in the prior art is not intractable or difficultly tractable and readily undergoes melt processing with ease. The aromatic polyester of the present invention consists essentially of the recurring units ...

5
Gordon W Calundann: Melt processable thermotropic wholly aromatic polyester comprising both para-oxybenzoyl and meta-oxybenzoyl moieties. Celanese Corporation, Kenneth A Genoni, December 19, 1978: US04130545 (105 worldwide citation)

A wholly aromatic polyester is provided which unlike the aromatic polyesters normally encountered in the prior art is not intractable or difficultly tractable and readily undergoes melt processing with ease. The aromatic polyester of the present invention consists essentially of the recurring units ...

6
Gordon W Calundann: Polyester of 6-hydroxy-2-naphthoic acid, para-hydroxy benzoic acid, aromatic diol, and aromatic diacid capable of readily undergoing melt processing. Celanese Corporation, Kenneth A Genoni, August 26, 1980: US04219461 (87 worldwide citation)

A novel polyester is provided which has been found to exhibit an optically anisotropic melt phase at a temperature which enables it readily to undergo melt processing to form quality fibers, molded articles, etc. The polyester of the present invention contains substantial concentrations of recurring ...

7
Gordon W Calundann: Melt processable thermotropic wholly aromatic polyester. Celanese Corporation, January 22, 1980: US04184996 (80 worldwide citation)

A wholly aromatic polyester is provided which unlike the aromatic polyesters normally encountered in the prior art is not intractable or difficultly tractable and readily undergoes melt processing with ease. The aromatic polyester of the present invention consists essentially of the recurring units ...

8
Gordon W Calundann: Polyester of 6-hydroxy-2-naphthoic acid, aromatic diol, and aromatic diacid capable of undergoing melt processing. Celanese Corporation, Kenneth A Genoni, March 17, 1981: US04256624 (78 worldwide citation)

A novel polyester is provided which has been found to exhibit an optically anisotropic melt phase which enables it readily to undergo melt processing to form quality fibers, films, molded articles, etc. The polyester of the present invention contains recurring 6-oxy-2-naphthoyl moieties in addition ...

9
Anthony J East, Gordon W Calundann: Polyester of 6-hydroxy-2-naphthoic acid, aromatic diol, and 1,4-cyclohexanedicarboxylic acid capable of undergoing melt processing. Celanese Corporation, Charles B Barris, March 9, 1982: US04318842 (73 worldwide citation)

A novel polyester is provided which has been found to exhibit an optically anisotropic melt phase which enables it readily to undergo melt processing to form quality fibers, films, molded articles, etc. The polyester of the present invention contains recurring 6-oxy-2-naphthoyl moieties in addition ...

10
Gordon W Calundann, Larry F Charbonneau, Brian C Benicewicz: Melt processable polyester capable of forming an anisotropic melt comprising a relatively low concentration of 6-oxy-2-naphthoyl moiety, 4-oxybenzoyl moiety, 4,4-dioxybiphenyl moiety, and terephthaloyl moiety. Celanese Corporation, Burns Doane Swecker & Mathis, September 25, 1984: US04473682 (63 worldwide citation)

The novel polyester of the present invention is capable of forming an anisotropic melt phase and may be prepared on a relatively economical basis. Such polyester includes a relatively low concentration of 6-oxy-2-naphthoyl moiety in combination with a more substantial concentration of 4-oxybenzoyl m ...