1
Yoji Fujiura, Takashi Sumiya: Fluid absorbent compositions and process for their preparation. Hoechst Celanese Corporation, Hugh C Crall, March 26, 1991: US05002986 (92 worldwide citation)

This invention relates to fluid absorbent polymer compositions having the ability to absorb aqueous ionic fluids and water rapidly and efficiently. These fluid absorbent polymer compositions are prepared from fine base polymer particles which are ionically surface crosslinked and agglomerated into l ...


2
Takashi Sumiya, Masashi Date, Kenji Tanaka: Process for producing water-absorbing resins. Sanyo Chemical, Fish & Richardson, January 10, 1995: US05380808 (66 worldwide citation)

The invention concerns a process for producing water-insoluble water-absorbing resins, which comprises the steps of initiating polymerization of an aqueous solution containing 30 to 80% by weight of (a) a hydrophilic vinyl monomer having a functional group and (b) a crosslinking agent by supplying t ...


3
Takashi Sumiya, Kenji Yabe, Takashi Mimura, Satoyuki Minami: Composite film and antistatic composite film comprising a swellable inorganic silicate. Toray, Birch Stewart Kolasch & Birch, November 22, 1988: US04786558 (31 worldwide citation)

The present invention relates to a composite film comprising a plastic film and a protective layer which is formed on at least one surface of the film, wherein the protective layer is made of a mixture comprising (a) an inorganic swellable silicate having a layered structure and (b) a compound conta ...


4
Takashi Sumiya, Masanori Koike, Kenji Tanaka: Water-absorbent resin particles and the production thereof. Sanyo Chemical, September 16, 1997: US05668078 (13 worldwide citation)

The present invention relates to a process for producing improved water-absorbent resin particles comprising the step of treating water-absorbent particles, which are crosslinked polymers of ethylenically unsaturated monomers comprising acrylic acid and/or acrylic acid salt as an essential element, ...


5
Kenji Tsunashima, Takashi Mimura, Takashi Sumiya, Hiroshi Kuboyama: Polyester film. Toray, Birch Stewart Kolasch & Birch, March 13, 1990: US04908277 (12 worldwide citation)

The present invention is directed to a polyester film comprising at least at its surface portion oriented sulfonic acid groups and/or salts thereof with an orientation degree of 5-100, which has an excellent adhesiveness, especially excellent anti-alkaline adhesiveness. The present invention also ma ...


6
Masashi Date, Takashi Sumiya, Hitoshi Takai: Process for producing water absorbent resin. Sanyo Chemical, Wegner Cantor Mueller and Player, January 24, 1995: US05384368 (11 worldwide citation)

The present invention relates to a process for producing water absorbent resin comprising a step of adding a high-molecular crosslinking agent which has at least 2 azetidinium salt groups in the molecule and has at least 1000 weight-average molecular weight to the water absorbent resin paticles havi ...


7
Takashi Sumiya, Masami Koike, Yukio Zenitani: Gelating agent for alkaline cell and alkaline cell. Sanyo Chemical, Baker & Daniels, December 23, 2003: US06667133 (11 worldwide citation)

A gelating agent for an alkaline cell is a cross-linked polymer (A) comprising (meth)acrylic acid and/or its alkali metal salt as a main constituent monomer unit and obtained by an aqueous solution polymerization or a reversed phase suspension polymerization and satisfies the following required cond ...


8
Seizo Aoki, Kenji Tsunashima, Toshiya Yoshii, Yasuji Nakahara, Takashi Sumiya, Takashi Mimura: Film for heat-sensitive mimeograph stencil. Toray, Austin R Miller, October 29, 1991: US05061565 (11 worldwide citation)

A film for heat-sensitive mimeograph stencil and a heat-sensitive mimeograph stencil comprising a porous support and the film laminated thereon are disclosed. Since the film of the present invention has an energy of crystal fusion .DELTA.Hu of 3-11 cal/g and has a difference Tm in temperature of the ...


9
Takashi Sumiya, Iwao Tanaka, Kunio Shibatsuji, Hirokazu Kurome, Seiya Sugiura, Wataru Ooe: Polyester film for use of a laminate with a metal plate. Toray, Austin R Miller, December 16, 1997: US05698308 (7 worldwide citation)

Disclosed is a polyester film for use of a laminate with a metal plate comprising a polyester=group resin containing a white pigment having a mean particle diameter of 0.01 to 1.8 .mu.m at a content of 10 to 30% by weight. The film has (a) a void ratio of 4 to 30%, (b) a melting peak temperature of ...


10
Takashi Sumiya, Masami Koike, Yoji Fujiura, Mihoko Nomoto: Water-absorbent or water-retention material and production method thereof. Sanyo Chemical, Merchant & Gould P C, October 16, 2001: US06303711 (6 worldwide citation)

The present invention can provide a water-absorbent or water-retention material comprising water-absorbent resin derived from monomer unit components comprising 40 to 99 wt. % of hydroxyl alkyl (meth)acrylate, 1 to 60 wt. % of (meth)acrylic acid and/or alkali metal salt thereof and 0.00001 to 3 wt. ...