21
Shigenobu Kawakami, Keiji Endo, Hideyuki Dohi, Atsushi Sato: Process for treating by-product oil. Nippon Petrochemicals Company, Fisher Christen & Sabol, December 15, 1992: US05171906 (4 worldwide citation)

A process for treating a by-product oil is disclosed, which comprises treating a raw material containing a heavy oil formed as a by-product in the step of producing alkylbenzene or the like by alkylation of benzene or the like, with a catalyst of crystalline synthetic zeolite having a SiO.sub.2 /Al. ...


22
Atsushi Sato, Shigenobu Kawakami, Keiji Endo: Electrical insulating oil composition and capacitors prepared therewith. Nippon Petrochemicals Company, Scully Scott Murphy & Presser, January 21, 1992: US05081758 (4 worldwide citation)

An electrical insulating oil composition which comprises 45% by weight or more of at least 2 members selected from the group consisting of (a) m-ethylbiphenyl, (b) p-ethylbiphenyl, (c) o-benzyltoluene, (d) m-benzyltoluene, (e) p-benzyltoluene, and (f) 1,1-diphenylethane; and the remainder of non-con ...


23
Atsushi Sato, Keiji Endo, Shigenobu Kawakami, Hideyuki Dohi: Oil-filled capacitor. Nippon Petrochemicals Company, Scully Scott Murphy & Presser, May 27, 1986: US04591948 (4 worldwide citation)

An oil-filled capacitor which can be made small in size and has excellent electrical characteristics. The capacitor of the present invention is characterized in that it is made by impregnating a film-wound capacitor element with 1-phenyl-1-(benzylphenyl)ethane, at least a part of the dielectric mate ...


24
Yuichi Orikasa, Shinji Kojima, Takashi Inoue, Kaoru Yamamoto, Atsushi Sato, Shigenobu Kawakami: Method for improving impulse destructive strength of electrical insulating materials. Nippon Petrochemicals, Ostrolenk Faber Gerb & Soffen, May 31, 1988: US04748209 (3 worldwide citation)

The present invention provides a method for improving impulse destructive strength of an electrical insulating material which is characterized by employing, as the electrical insulating material, a random copolymer of a styrene series monomer and ethylene or a combination of ethylene and another eth ...


25
Yuichi Orikasa, Shinji Kojima, Takashi Inoue, Atsushi Sato, Shigenobu Kawakami, Kaoru Yamamoto: Electrical insulating material and power cable comprising a crosslinked layer thereof. Nippon Petrochemicals, Fisher Christen & Sabol, February 14, 1989: US04804729 (3 worldwide citation)

The present invention provides an electrical insulating material which comprises an ethylene copolymer prepared by subjecting, to a high-pressure radical polymerization, ethylene or a mixture of ethylene and at most 3 mol % of another monomer in the presence of one- to three-ring aromatic compound h ...


26
Isoo Shimizu, Yasuo Matsumura, Shigenobu Kawakami, Atsushi Sato: Method for preparing 3-ethylbenzophenone. Nippon Petrochemicals, Fisher Christen & Sabol, March 15, 1988: US04731483 (3 worldwide citation)

The present invention provides a method for preparing 3-ethylbenzophenone in a high purity which comprises the steps of alkylating benzene with ethylene with the aid of an alkylating catalyst to obtain an alkylated product composed mainly of unreacted benzene, ethylbenzene, polyethylbenzenes and hea ...


27
Atsushi Sato, Shigenobu Kawakami, Keiji Endo, Hideyuki Dohi: Electrical insulating oil composition. Nippon Petrochemicals Company, Scully Scott Murphy & Presser, June 7, 1988: US04750083 (2 worldwide citation)

An electrical insulating oil composition which is excellent in low temperature characteristics and suitable for use in impregnating capacitors, and comprises (a) m-ethylbiphenyl, (b) p-ethylbiphenyl, (c) m-isopropylbiphenyl and (d) p-isopropylbiphenyl, and is characterized in that the total amount o ...


28
Atsushi Sato, Shigenobu Kawakami, Keiji Endo, Hideyuki Dohi: Electrical insulating oil composition and capacitors prepared therewith. Nippon Petrochemicals Company, Scully Scott Murphy & Presser, January 21, 1992: US05081757 (2 worldwide citation)

An electrical insulating oil composition having good low temperature characteristics which comprises at least 4 members selected from the group consisting of (a) m-ethylbiphenyl, (b) p-ethylbiphenyl, (c) o-benzyltoluene, (d) m-benzyltoluene, (e) p-benzyltoluene, (f) 1,1-diphenylethane, and (g) 1,1-d ...


29
Yuichi Orikasa, Shinji Kojima, Takashi Inoue, Kaoru Yamamoto, Atsushi Sato, Shigenobu Kawakami: Novel ethylene copolymers. Nippon Petrochemicals, Ostrolenk Faber Gerb & Soffen, April 5, 1988: US04736007 (2 worldwide citation)

A novel ethylene copolymer useful for electric insulating materials is obtained by a high-pressure radical polymerization at a pressure of 500 to 4,000 kg/cm.sup.2 at a temperature of 130.degree. to 400.degree. C. and which comprises 95.0 to 99.995 mol % of an ethylene unit, 0.005 to 2 mol % of a co ...


30
Atsushi Sato, Shigenobu Kawakami, Keiji Endo, Hideyuki Dohi: Electric insulating oil composition. Nippon Petrochemicals Company, Scully Scott Murphy & Presser, May 12, 1992: US05113029 (1 worldwide citation)

A new electrical insulating oil composition having improved low temperature characteristics which composition comprises a mixture of 40% by weight or more of benzyltoluene and the remainder of alkyl substituted diphenylmethane having 15 to 17 carbon atoms which is represented by the following genera ...