公开(公告)号：JPS62288159A

公开(公告)日：1987-12-15

申请号：JP12985686

申请日：1986-06-04

Applicant: AGENCY IND SCIENCE TECHN ,  NISSEI ELECTRIC

Inventor： TORII YASUYOSHI ,  SEKIYA TADASHI ,  TSUZUKI AKIHIRO ,  TAKASHIMA HIROO ,  SUGIYAMA TOYOHIKO ,  TAKAHASHI AKIO

IPC: H05B3/14 ,  C04B35/46

公开(公告)号：JPS62223058A

公开(公告)日：1987-10-01

申请号：JP6685186

申请日：1986-03-25

Applicant: AGENCY IND SCIENCE TECHN ,  TEKUNIKUSU KK

Inventor： TAKASHIMA HIROO ,  INDO TOSHIYASU

IPC: C04B35/00

公开(公告)号：JPH06298533A

公开(公告)日：1994-10-25

申请号：JP10995393

申请日：1993-04-13

Applicant: AGENCY IND SCIENCE TECHN

Inventor： HORIUCHI TATSURO ,  SUGIYAMA TOYOHIKO ,  TAKASHIMA HIROO ,  YASUE KAZUO ,  USHIKI KENICHI

IPC: B01J13/00 ,  C01G23/04 ,  C01G23/053

Abstract: PURPOSE:To easily control the size of colloid particles and improve the quantum containment effect and transparency by diluting a titanium alkoxide with an alcohol and adding the solution to a strongly acidic water little by little. CONSTITUTION:A titanium alkoxide such as titanium isopropoxide is diluted with 5-50 times mol of an alcohol such as ethanol to obtain a dilute solution. The particle size of titanium oxide colloid can be controlled as necessary by varying the dilution degree or the concentration in the above process. The diluted solution is dropped into a strongly acidic water of pH

公开(公告)号：JPH06298520A

公开(公告)日：1994-10-25

申请号：JP10995493

申请日：1993-04-13

Applicant: AGENCY IND SCIENCE TECHN

Inventor： HORIUCHI TATSURO ,  SUGIYAMA TOYOHIKO ,  TAKASHIMA HIROO ,  YASUE KAZUO ,  USHIKI KENICHI

IPC: C01B33/16 ,  C01B33/12

Abstract: PURPOSE:To obtain a silica gel having improved optical characteristics by dispersing ultrafine TiO2 particles in SiO2 colloid, gelatinizing the colloid at a specific temperature and baking the gel. CONSTITUTION:Transparent TiO2 colloid is prepared by diluting 1mol of a Ti alkoxide such as Ti isopropoxide with 5-50mol of an alcohol such as ethanol and dropping the diluted solution under stirring into strongly acidic water such as hydrochloric acid of pH

公开(公告)号：JPS6330360A

公开(公告)日：1988-02-09

申请号：JP12985586

申请日：1986-06-04

Applicant: AGENCY IND SCIENCE TECHN ,  NISSEI ELECTRIC ,  TOSOH CORP

Inventor： TAKAGI HIROYOSHI ,  TAKASHIMA HIROO ,  SUGIYAMA TOYOHIKO ,  TAKAHASHI AKIO ,  TAMURA YOSHIO

IPC: H05B3/10 ,  C04B35/00 ,  H05B3/14