公开(公告)号：SE7505389A

公开(公告)日：1975-11-14

申请号：SE7505389

申请日：1975-05-09

Applicant: BASF AG

Inventor： VOSS H ,  MOELLER R ,  SCHICK R ,  STAHNECKER E

IPC: C08J9/22 ,  C08J9/224

CPC classification number: C08J9/224 ,  C08J2325/04 ,  Y10T428/249992 ,  Y10T428/2991 ,  Y10T428/2998 ,  Y10T428/31587

公开(公告)号：SE381424B

公开(公告)日：1975-12-08

申请号：SE1326472

申请日：1972-10-13

Applicant: BASF AG

Inventor： STAHNECKER E ,  RUPPERT G ,  MOELLER R ,  SCHICK R ,  ZUERN L

IPC: B29C44/56 ,  B29C53/00 ,  B29C59/00 ,  B29C59/04 ,  B29C69/00 ,  B29D99/00 ,  B65D65/00 ,  B65D81/09 ,  B29D27/00

公开(公告)号：DK138529C

公开(公告)日：1979-03-05

申请号：DK545172

申请日：1972-11-03

Applicant: BASF AG

Inventor： STAHNECKER E ,  RUPPERT G ,  MOELLER R ,  SCHICK R ,  ZUERN L

IPC: B29C44/56 ,  B29C53/00 ,  B29C59/00 ,  B29C59/04 ,  B29C69/00 ,  B29D99/00 ,  B65D65/00 ,  B65D81/09 ,  B29D27/00

公开(公告)号：SE7505389L

公开(公告)日：1975-11-14

申请号：SE7505389

申请日：1975-05-09

Applicant: BASF AG

Inventor： VOSS H ,  MOELLER R ,  SCHICK R ,  STAHNECKER E

IPC: C08J9/22 ,  C08J9/224

公开(公告)号：BR7302843D0

公开(公告)日：1974-07-18

申请号：BR284373

申请日：1973-04-18

Applicant: BASF AG

Inventor： STAHNECKER E ,  MOELLER R ,  ZUERN L ,  FRIED M

IPC: C08F2/00 ,  C08F20060101 ,  C08F2/04 ,  C08F2/10 ,  C08F26/00 ,  C08F26/08 ,  C08F26/10 ,  C08F7/14

Abstract: Solutions of N-vinylpyrrolidone polymers can be prepared with particular advantage by polymerization of N-vinylpyrrolidone in an aqueous medium by adding the polymerization catalyst in portions or continuously to the monomer solution in the form of a finely divided suspension in an aqueous solution of N-vinylpyrrolidone polymer.

公开(公告)号：DK138529B

公开(公告)日：1978-09-25

申请号：DK545172

申请日：1972-11-03

Applicant: BASF AG

Inventor： STAHNECKER E ,  RUPPERT G ,  MOELLER R ,  SCHICK R ,  ZUERN L

IPC: B29C44/56 ,  B29C53/00 ,  B29C59/00 ,  B29C59/04 ,  B29C69/00 ,  B29D99/00 ,  B65D65/00 ,  B65D81/09 ,  B29D27/00

公开(公告)号：BR7502907A

公开(公告)日：1976-03-23

申请号：BR7503697

申请日：1975-05-12

Applicant: BASF AG

Inventor： SCHICK R ,  STAHNECKER E ,  VOSS H ,  MOELLER R

IPC: C08J9/22 ,  C08J9/224 ,  C08J9/16 ,  C08G18/06 ,  C08L25/06

公开(公告)号：BR6906576D0

公开(公告)日：1973-01-04

申请号：BR20657669

申请日：1969-02-21

Applicant: BASF AG

Inventor： WEBER H ,  MOELLER R ,  HINTZ H

IPC: C08J9/00

Abstract: 1,247,796. Expanded styrene polymers made using ammonium sulphate. BADISCHE ANILIN- & SODA-FABRIK A.G. 21 Feb., 1969 [23 Feb., 1968], No. 9476/69. Headings C3C and C3P. Expanded styrene polymers are made by carrying out the expansion in the presence of 0À0001-1% by wt. of ammonium sulphate as a nucleating agent. In the examples (1, 2 and 11) polystyrene or styrene/α-methylstyrene copolymer granules are either melted in an extruder or powdered in a mixer and then blended with ammonium sulphate and pentane; the foamable granules are then expanded with steam; and in Example 12 styrene is polymerized in an aq. mixture of polyvinyl pyrrolidone, ammonium sulphate, sodium pyrophosphate, pentane, dibenzoyl peroxide and polystyrene to form foamable beads which are then expanded with steam. In comparative examples (3-10) ammonium bromide or oxalate, water, sodium sulphite, aluminium or sodium hydrogen sulphate, α-alanine and diammonium citrate are used as nucleating agents.