Sumitomo Electric Industries, Limited

Shinichi Toyooka

Katsuya Yamada

Koichi Okita

Shigeru Asako

Akira Nishimura

Chiaki Kato

Masaya Nishi

Shosuke Yamanouchi

Yoshitaka Osawa

Toshiyuki Hatta

Akihiko Isomura

Cooking instrument using a microwave oven for heating a primary cooking

The invention provides an elastic roller for use in an apparatus for fixing a toner image, electrostatically formed on copy paper by passing the toner image between two rollers, comprising a roller core, a fusible fluororesin layer coated on the outside of the roller core, a porous fluororesin having porous portions affixed to the roller core through the fusible fluororesin layer, and a rubber impregnated into the porous portions of the porous fluororesin. It also provides a method for making an elastic roller including the steps of fusing a fusible fluororesin layer on the outside of a roller core or base; affixing a porous fluororesin having porous portions to the roller core through the fused fluororesin layer; filling the porous portions of the porous fluororesin with a rubber after fusing the porous fluororesin to the roller core; and hardening the rubber.

Elastic roller for fixing and method of producing the same

A liquid membrane is disclosed, which comprises a solvent, an active species capable of facilitated transport of a specific gas, and a support for maintaining a liquid body which has a mixture of said solvent and active species dissolved therein, said support being a porous polytetrafluoroethylene film one surface of which is hydrophobic and the other of which is hydrophilic.

Liquid membrane

A liquid membrane is disclosed, which comprises a solvent, an active species capable of performing facilitated transport of a specific gas, and a support for maintaining a liquid mixture of the solvent and the active species, wherein the active species has the structure represented by the following formula: ##STR1##

Apparatus for manufacturing a porous polytetrafluoroethylene material comprising extruding or rolling or a process consisting of the both an unsintered polytetrafluoroethylene mixture containing a liquid lubricant, and carrying out simultaneously next four steps of (a) evaporating a liquid lubricant, (b) stretching the molded articles in an unsintered condition, (c) sintering the same in a stretched condition, and (d) stretching the same in a sintered condition at an atmospheric temperature of more than 390.degree. C. to obtain mechanical strengths such as a Young's modulus of more than 10000 kg/cm.sup.2, and a matrix tensile strength of more than 1100 kg/cm.sup.2.

Apparatus for manufacturing porous polytetrafluoroethylene material

A highly weather-proof high strength membrane material which comprises

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Osaka, Japan

Shinichi Toyooka