公开(公告)号：US3687917A

公开(公告)日：1972-08-29

申请号：US3687917D

申请日：1970-08-19

Applicant: BASF AG

Inventor： WISSEROTH KARL ,  TRIESCHMANN HANS-GEORG ,  DODEL PETER ,  HOEHR LOTHAR ,  HERBECK RUDOLF ,  SCHOLL RICHARD

IPC: C08F14/06 ,  C08F3/30 ,  C08F1/04 ,  C08F15/02

CPC classification number: C08F14/06 ,  Y10S526/909 ,  C08F2/02

Abstract: Process for the polymerization of vinyl chloride in the absence of solvents or dispersing agents in two stages. In the first stage the liquid monomers are polymerized to a conversion of from 1 to 15 percent; in the second stage polymerization is continued in the powder phase in the absence of liquid vinyl chloride. The process may be carried out continuously and gives very pure polymers which may be used for all purposes for which polyvinyl chloride is usually employed.

Abstract translation: 在不存在溶剂或分散剂的情况下在两个阶段聚合氯乙烯的方法。

公开(公告)号：AT218596T

公开(公告)日：2002-06-15

申请号：AT99916835

申请日：1999-03-19

Applicant: BASF AG

Inventor： GLUECK GUISCARD ,  HAHN KLAUS ,  DODEL PETER

IPC: B29C44/10 ,  C08J9/12 ,  C08J9/16 ,  C08L25/06

Abstract: A process prepares styrene polymers comprising water as sole blowing agent by mixing a polystyrene melt with water and with an emulsifying agent in an extruder, extruding the melt into a waterbath and pelletizing the cooled extrudate.

公开(公告)号：DE59901638D1

公开(公告)日：2002-07-11

申请号：DE59901638

申请日：1999-03-19

Applicant: BASF AG

Inventor： GLUECK GUISCARD ,  HAHN KLAUS ,  DODEL PETER

IPC: B29C44/10 ,  C08J9/12 ,  C08J9/16

Abstract: A process prepares styrene polymers comprising water as sole blowing agent by mixing a polystyrene melt with water and with an emulsifying agent in an extruder, extruding the melt into a waterbath and pelletizing the cooled extrudate.

公开(公告)号：DE10101403A1

公开(公告)日：2002-07-18

申请号：DE10101403

申请日：2001-01-13

Applicant: BASF AG

Inventor： DATKO ACHIM ,  DODEL PETER ,  HAHN KLAUS

IPC: C08F2/18 ,  C08F12/04 ,  C08F12/08 ,  C08J9/12

Abstract: Preparation of styrene polymers containing a propellant by polymerisation of styrene with comonomers, in aqueous suspension, with addition, (at start or during polymerisation) of amphiphilic organic emulsifying agent containing hydrophilic and hydrophobic groups, or a polymer carrying a polar group, (miscible in water), so the suspended styrene droplets contain finely distributed water particles.

公开(公告)号：AT386059T

公开(公告)日：2008-03-15

申请号：AT01130035

申请日：2001-12-18

Applicant: BASF AG

Inventor： DATKO ACHIM ,  DODEL PETER ,  HAHN KLAUS

IPC: C08F12/04 ,  C08F2/18 ,  C08J9/20

Abstract: Preparation of styrene polymers containing a propellant by polymerisation of styrene with comonomers, in aqueous suspension, with addition, (at start or during polymerisation) of amphiphilic organic emulsifying agent containing hydrophilic and hydrophobic groups, or a polymer carrying a polar group, (miscible in water), so the suspended styrene droplets contain finely distributed water particles.

公开(公告)号：DE19813108A1

公开(公告)日：1999-09-30

申请号：DE19813108

申请日：1998-03-25

Applicant: BASF AG

Inventor： GLUECK GUISCARD ,  HAHN KLAUS ,  DODEL PETER

IPC: B29C44/10 ,  C08J9/12 ,  C08J9/16

Abstract: The invention relates to a method for producing styrene polymers containing water as only inflating agent by mixing a polystyrene melt with water and an emulsifier in an extruder, expressing the molten mass in a water bath and granulating the cooled extrudate.