1
Masaki Nishiguchi, Toshimasa Tokuda: Aromatic polycarbonate, a method for producing the same, and a plastic optical waveguide using the same. Furukawa Electric, Teijin Chemicals, Birch Stewart Kolasch & Birch, February 4, 1997: US05599897 (26 worldwide citation)

There is provided an aromatic polycarbonate obtained by reacting a carbonate precursor substance with a dihydric phenol comprising mainly 2,2-bis(4-hydroxyphenol)-1,1,1,3,3,3-hexafluoropropane having specific characteristics. This aromatic polycarbonate has the following characteristics. That is, wi ...


2
Hiroshi Tamura, Tomoyuki Shimada, Tsutomu Nakajima, Masaomi Sasaki, Toshimasa Tokuda: Electrophotographic photoconductor and polycarbonate resin for use therein. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, July 25, 2000: US06093784 (17 worldwide citation)

An electrophotographic photoconductor is composed of an electroconductive support and a photoconductive layer formed thereon, which photoconductive layer includes a polycarbonate resin. Aromatic polycarbonate resins not only for the electrophotographic photoconductor, but also for the materials for ...


3
Toshimasa Tokuda: Fire-retardant polycarbonate composition. Teijin Chemicals, Sherman & Shalloway, September 16, 1980: US04222910 (8 worldwide citation)

A resin composition having an excellent fire retarding effect is provided which comprises (1) a polycarbonate and (2) as a fire retardant, at least one member of the group consisting of (A) a metal salt of a sulfuric ester of an alcohol, (B) an ether derived from an alkyl alcohol and a phenol and ha ...


4
Toshimasa Tokuda: Fire-retardant polycarbonate composition. Teijin Chemicals, Sherman & Shalloway, February 23, 1982: US04316838 (8 worldwide citation)

A resin composition having an excellent fire retarding effect is provided which comprises (1) a polycarbonate and (2) as a fire retardant, at least one member of the group consisting of (A) a metal salt of a sulfuric ester of an alcohol, (B) an ether derived from an alkyl alcohol and a phenol and ha ...


5
Toshimasa Tokuda, Ikkoh Furukawa, Masayoshi Miyauchi: Modified aromatic polycarbonate resin, modified aromatic polyester carbonate resin, modified polyarylate, and molded articles therefrom. Teijin Chemicals, Sherman and Shalloway, October 31, 1995: US05463013 (8 worldwide citation)

A modified aromatic polycarbonate resin containing at least one substituted phenyloxy group of the formula (I) in an amount of at least 5 mol % of the total amount of terminals, ##STR1## wherein: X is a halogen atom or a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms,


6
Masaki Nishiguchi, Toshimasa Tokuda: Aromatic polycarbonate copolymer, a process for producing the same, and a plastic optical waveguide using the same. The Furukawa Electric, Teijin Chemicals, Birch Stewart Kolasch & Birch, December 12, 1995: US05475786 (7 worldwide citation)

There is provided an aromatic polycarbonate copolymer obtained by reacting a dihydric phenol component comprising mainly 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoropropane and 9,9-bis(4-hydroxyphenyl)fluorene or 1,1-bis(4-hydroxyphenyl)-1-phenylethane in a prescribed ratio with a carbonate precu ...


7
Toshimasa Tokuda: Fire-retardant polycarbonate composition. Teijin Chemicals, Sherman & Shalloway, August 25, 1981: US04285855 (7 worldwide citation)

A resin composition having an excellent fire retarding effect is provided which comprises (1) a polycarbonate and (2) as a fire retardant, at least one member of the group consisting of (A) a metal salt of a sulfuric ester of an alcohol, (B) an ether derived from an alkyl alcohol and a phenol and ha ...


8
Toshimasa Tokuda, Kuniyuki Hayashi, Tatsumi Horie: Optical disk substrate, optical disk and aromatic polycarbonate resin. Teijin Chemicals, Sherman and Shalloway, May 27, 1997: US05633060 (7 worldwide citation)

An optical disk substrate formed substantially of an aromatic polycarbonate from an aromatic dihydroxy component containing at least 20 mol % of 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane,


9
Koki Ikeda, Toshimasa Tokuda, Hiroshi Shuto, Manabu Matsui, Toshiyuki Miyake, Kazushi Tando: Polycarbonate copolymer, resin composition, and molded article. Teijin Chemicals, Wenderoth Lind & Ponack L, July 17, 2007: US07244804 (6 worldwide citation)

There are provided a polycarbonate copolymer (A) which has excellent light resistance and heat resistance and comprises an aromatic dihydroxy component comprising 5 to 95 mol % of fluorene-skeleton-containing dihydroxy compound (1) having a specific structure and 95 to 5 mol % of ordinary bisphenol ...


10
Koki Ikeda, Toshimasa Tokuda, Yoshimasa Okamoto, Masato Ando: Polycarbonate copolymer, and heat resistant parts comprising the same. Teijin Chemicals, Wenderoth Lind & Ponack L, January 8, 2008: US07317067 (5 worldwide citation)

An object of the present invention is to provide a polycarbonate copolymer having excellent heat resistance and dimensional stability and heat resistant parts comprising the copolymer and suitable for use in various applications. The present invention is a polycarbonate copolymer comprising 5 to 95 ...