公开(公告)号：DE59009261D1

公开(公告)日：1995-07-27

申请号：DE59009261

申请日：1990-02-07

Applicant: HOECHST AG

Inventor： PEUKERT MARCELLUS DR ,  BRUECK MARTIN DR ,  VAAHS TILO DR ,  KLEINER HANS-JERG DR ,  ALDINGER FRITZ DR

IPC: C04B35/584 ,  C04B35/58 ,  C04B35/589 ,  C04B41/45 ,  C04B41/81 ,  C04B41/84 ,  C04B41/87 ,  C08G77/62

公开(公告)号：DE3840779A1

公开(公告)日：1990-06-07

申请号：DE3840779

申请日：1988-12-03

Applicant: HOECHST AG

Inventor： VAAHS TILO DR ,  PEUKERT MARCELLUS DR ,  BRUECK MARTIN DIPL ING

IPC: C04B35/58 ,  C04B35/589 ,  C08G77/48 ,  C08G77/62 ,  D01F9/10

Abstract: The chlorine-containing silazane polymers are prepared by reacting oligosilazanes of the formula (I) in which at least one of the indices a and b and at least one of the indices c and d is not 0, and n is from about 2 to about 12, with at least one of the chlorosilanes Cl2R Si-CH2CH2-SiR Cl2, Cl3Si-CH2CH2-SiR Cl2, R SiCl3 or R SiHCl2 at from 30 DEG C to 300 DEG C, where, independently of one another, R , R and R are H, C1-C6-alkyl or C2-C6-alkenyl, and R , R , R , R , R and R are C1-C6-alkyl or C2-C6-alkenyl. The polysubstituted, chlorine-containing silazane polymers according to the invention can be reacted with ammonia to give polysilazanes, which can themselves be pyrolysed to give silicon nitride-containing ceramic materials.