Sumitomo Rubber Industries Limited

Kyushu University

Other

Yasuhiko Kondo

Makoto Sugiya

Yasuhisa Minagawa

Tetsuo Mizoguchi

Atsushi Takahara

Seiji Tomono

Motoyasu Kobayashi

Tetsuya Fuchikami

Hiroaki Nakano

Toshikazu Ogita

Hiroyuki Kaneko

Seiji Hara

Toshio Kamada

Hisao Kagano

Kayoko Ueda

Hisanori Yamane

Tsuneo Masuda

A gasket for prefilled syringe according to the present invention is a gasket for prefilled syringe that includes a fluid contacting portion, a sliding portion with a circumferential surface, a film layer made of a fluororesin coated on the fluid contacting portion and sliding portion and further, and a coating layer including trimethylsiloxysilicate laminated on the film layer covering the sliding portion.

Gasket for prefilled syringe and prefilled syringe

Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber. The surface modification method comprises the step of forming hydroxyl group on surface of to-be-modified object such as rubber so that water contact angle of the surface becomes 8 to 50 degrees smaller than original water contact angle in unmodified condition, the step of forming polymerization initiation site by subjecting the hydroxyl group to action of secondary or tertiary organic halide, and the step of growing polymer brush on the surface of to-be-modified object by subjecting monomer to radical polymerization at the polymerization initiation site acting as a point of initiation.

Surface modification method, surface-modified elastic body, gasket for injector, injector, and tire

An electrode substrate of a PDP has an electrode pattern on a glass substrate and is made by baking and removing a resin binder in a conductive pattern composed of a conductive ink. The conductive pattern is formed by printing the conductive ink on the glass substrate by an intaglio offset printing method. The conductive ink is formed by dispersing or dissolving a metal powder and a resin binder into a solvent. A printing blanket used for printing the conductive pattern has a rubber layer on the surface of the printing blanket, and the rubber layer poses a volume increasing rate under 20% when the rubber is immersed in the solvent for 24 hours at 23&#xb0; C. The printing blanket is heated such that a surface temperature Tof the printing blanket is about 40&#x2dc;200&#xb0; C., and then the printing blanket is cooled in a condition that the surface temperature T(&#xb0; C.) of the printing blanket with respect to a surface temperature T(&#xb0; C.) of the intaglio satisfies the equation |T&#x2212;T|&#x2266;5&#xb0; C. As a result, the electrode substrate has a tiny and highly precise electrode pattern.

Electrode substrate of plasma display panel and method for making the same

An electromagnetic shielding plate having a glass substrate and a geometric pattern formed on the substrate, in which the geometric pattern contains (a) an inorganic filler selected from the group consisting of metals and metal oxides, and (b) a glass component having a softening point of about 200 to 700&deg; C.

Electromagnetic shielding plate and method for producing the same

The present invention provides an offset blanket for printing having a supporting layer and a surface printing layer laminated on the supporting layer. The surface printing layer has a surface configuration in which the mean peak distance is controlled so that good paper discharging properties can be maintained.

Offset blanket having defined printing surface characteristics

The printing offset blanket in accordance with the present invention has a surface printing layer made of a mixture of silicone rubber and oil-resisting rubber. It is therefore possible to prepare ink layers having a uniform thickness and clear edges. Further, the present offset blanket can be improved in paper discharging properties and retention of paper powder, enabling the blanket to be suitably applied to high-speed printing, filter or display prints, or the like. The printing rubber roll of the present invention is made of a mixture of silicone rubber and oil-resisting rubber. Accordingly, the present rubber roll is excellent in stability with respect to ultraviolet-curing ink and can therefore be used for a long period of time.

Printing offset blanket and rubber roll

Growing community of inventors

Kobe, Japan

Yasuhiko Kondo