公开(公告)号：BR7501579A

公开(公告)日：1975-12-16

申请号：BR7501579

申请日：1975-03-18

Applicant: HOECHST AG

Inventor： MEININGER F ,  NOLL W ,  SPANGE A

IPC: D06P1/44 ,  C09B67/24 ,  D06P1/48 ,  D06P1/62 ,  D06P3/66 ,  C09B67/00

公开(公告)号：BR7300592D0

公开(公告)日：1973-10-25

申请号：BR59273

申请日：1973-01-25

Applicant: HOECHST AG

Inventor： SPANGE A ,  DEUB EL R

IPC: C08L23/00 ,  C08J3/22 ,  C08K3/34 ,  C08L101/00 ,  C09B67/20 ,  C09C3/00 ,  C09C3/10 ,  C09B61/00 ,  C09C1/00 ,  D06P1/00

Abstract: A process for the preparation of pigment compositions, which comprises adding to the pigments an aqueous solution of an alkali metal silicate and a polyethylene dispersion and working up the mixture in a manner usual for pigments. The pigment compositions thus obtained are useful for coloring polyethylene films and sheets or for dyeing polyolefins in a spinning solution. The compositions show an excellent pigment distribution and tinctorial strength which is substantially better than those of compositions prepared without the addition of alkali metal silicates.