公开(公告)号：FI891130A0

公开(公告)日：1989-03-09

申请号：FI891130

申请日：1989-03-09

Applicant: BASF AG

Inventor： OSTERTAG WERNER ,  MRONGA NORBERT ,  GRAESSLE ULRICH

IPC: C09C1/36 ,  C09C1/00 ,  C09C1/40 ,  C09C3/00 ,  C09C3/06 ,  C09D5/36 ,  C09C

Abstract: To prepare especially bluish nacreous pigments, TiO2-coated mica pigments are treated with ammonia at from 750 to 850 DEG C with constant agitation. The optical layer thickness of the titanium dioxide (TiO2) coating is from 50 to 100 nm or from 300 to 340 nm.

公开(公告)号：FI891130A

公开(公告)日：1989-09-12

申请号：FI891130

申请日：1989-03-09

Applicant: BASF AG

Inventor： OSTERTAG WERNER ,  MRONGA NORBERT ,  GRAESSLE ULRICH

IPC: C09C1/36 ,  C09C1/00 ,  C09C1/40 ,  C09C3/00 ,  C09C3/06 ,  C09D5/36 ,  C09C

Abstract: To prepare especially bluish nacreous pigments, TiO2-coated mica pigments are treated with ammonia at from 750 to 850 DEG C with constant agitation. The optical layer thickness of the titanium dioxide (TiO2) coating is from 50 to 100 nm or from 300 to 340 nm.

公开(公告)号：FI92839C

公开(公告)日：1995-01-10

申请号：FI891130

申请日：1989-03-09

Applicant: BASF AG

Inventor： OSTERTAG WERNER ,  MRONGA NORBERT ,  GRAESSLE ULRICH

IPC: C09C1/36 ,  C09C1/00 ,  C09C1/40 ,  C09C3/00 ,  C09C3/06 ,  C09D5/36

公开(公告)号：FI92839B

公开(公告)日：1994-09-30

申请号：FI891130

申请日：1989-03-09

Applicant: BASF AG

Inventor： OSTERTAG WERNER ,  MRONGA NORBERT ,  GRAESSLE ULRICH

IPC: C09C1/36 ,  C09C1/00 ,  C09C1/40 ,  C09C3/00 ,  C09C3/06 ,  C09D5/36

Abstract: To prepare especially bluish nacreous pigments, TiO2-coated mica pigments are treated with ammonia at from 750 to 850 DEG C with constant agitation. The optical layer thickness of the titanium dioxide (TiO2) coating is from 50 to 100 nm or from 300 to 340 nm.