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Takeyuki Kawaguchi, Hiroyoshi Minematsu, Yuzuru Hayashi, Shigeyoshi Hara: Process for preparation of improved semipermeable composite membranes. June 14, 1983: US04388189 (91 worldwide citation)

In a process for producing a semipermeable composite membrane which comprises forming on a microporous substrate a thin layer of a polymeric material comprising a polyamino polymer containing at least 1 milliequivalent, per gram of the polymer in the dry state, of active amino groups selected from p ...


2
Takeyuki Kawaguchi, Yutaka Taketani, Noriaki Sasaki, Hiroyoshi Minematsu, Yuzuru Hayashi, Shigeyoshi Hara: Semipermeable composite membrane. Teijin, Wenderoth Lind & Ponack, November 24, 1981: US04302336 (87 worldwide citation)

A semipermeable composite membrane comprising a thin semipermeable film of a polymeric material deposited on one side of a microporous substrate, said polymeric material being prepared by crosslinking a soluble polymer containing at least 30 mole % of a recurring unit of the formula ##STR1## wherein ...


3
Shigeyoshi Hara, Yuzuru Hayashi, Takeyuki Kawaguchi, Noriaki Sasaki, Yutaka Taketani, Hiroyoshi Minematsu: Semipermeable composite membrane. Teijin, Sughrue Mion Zinn Macpeak & Seas, October 12, 1982: US04353802 (75 worldwide citation)

A semipermeable composite membrane comprising a thin semipermeable film of a polymeric material deposited on one side of a microporous substrate, the polymeric material being prepared by crosslinking a soluble polymer containing at least 30 mole % of a recurring unit of the formula ##STR1## wherein ...


4
Takeyuki Kawaguchi, Hiroyoshi Minematsu, Yuzuru Hayashi, Shigeyoshi Hara, Fumio Ueda: Amphoteric ion-permeable composite membrane. Teijin, Wenderoth Lind & Ponack, November 23, 1982: US04360434 (45 worldwide citation)

An amphoteric ion-permeable composite membrane composed of a microporous substrate, and supported on the substrate, a thin amphoteric ion-exchange film formed of an active amino group-containing polymer which has been interfacially crosslinked at least at the surface portion of the thin film, said m ...


5
Shigeyoshi Hara, Masao Senoo, Koh Mori, Yutaka Taketani: Novel nitrogen-containing aromatic polymers and process for their preparation. Teijin, Sherman & Shalloway, April 25, 1978: US04086209 (41 worldwide citation)

Novel substantially linear, or at least partially cross-linked, nitrogen-containing polymers having an aryleneimine or arylenether unit in the main chain with an amino group or a group derived from it being bonded as a pendant group to a nuclear carbon atom of the arylene group of the above unit. Ac ...


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Masao Senoo, Shigeyoshi Hara, Shuji Ozawa: Permselective polymeric membrane prepared from polybenzimidazoles. Teijin, Sherman & Shalloway, April 20, 1976: US03951920 (22 worldwide citation)

This invention provides a novel permselective polymeric membrane excellent in permselectivity which allows permeation of water in an aqueous solution at a high rate but is highly preventive of permeation of solutes, and a process for the preparation of such permselective membrane, said polymeric mem ...


8
Takeyuki Kawaguchi, Yutaka Taketani, Hiroyoshi Minematsu, Noriaki Sasaki, Yuzuru Hayashi, Shigeyoshi Hara: Semipermeable composite membrane and process for preparation thereof. Teijin, Wenderoth Lind & Ponack, December 30, 1980: US04242208 (21 worldwide citation)

A semipermeable composite membrane comprising a thin semipermeable film of a polymeric material deposited on one side of the microporous substrate, said polymeric material being prepared by interfacial crosslinking of a polymer containing a recurring unit of the formula ##STR1## wherein each of R.su ...


9
Zenichiro Endo, Shigeyoshi Hara, Paul A Silver, Hikoichiro Yamada: Process for making a filled metathesis polymer article. Hercules Incorporated, Joanne W Patterson, William S Alexander, March 17, 1992: US05096644 (20 worldwide citation)

A molded article is produced by metathesis polymerization of a mixture containing at least one metathesis polymerizable monomer, a metathesis polymerization catalyst and an organic or inorganic filler material which has been treated with a vinyl-substituted silane coupler having at least one hydroly ...


10
Zenichiro Endo, Shigeyoshi Hara, Paul A Silver, Hikoichiro Yamada: Molded polymer article filled with inorganic material and production of said article. Hercules Incorporated, William S Alexander, Joanne W Patterson, October 8, 1991: US05055499 (14 worldwide citation)

A method is disclosed for preparing filled shaped articles of metathesis polymerized poly(cycloolefins) wherein an inorganic filler material is treated with a norbornene-substituted silane coupling agent. The norbornene moiety copolymerizes with the metathesis polymerizable monomer and the silane mo ...



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