公开(公告)号：DE3843537A1

公开(公告)日：1990-06-28

申请号：DE3843537

申请日：1988-12-23

Applicant: BASF AG

Inventor： WEBER REINHOLD ,  HAHN KLAUS DR ,  GUHR UWE DR ,  GRAVE ISIDOOR DE DR ,  NAARMANN HERBERT DR ,  ALICKE GERHARD ,  WEILBACHER MANFRED DR

IPC: B29C47/00 ,  B29K25/00 ,  B29L7/00 ,  C08J9/14 ,  C08K5/01 ,  C08K5/02

公开(公告)号：DE19737002A1

公开(公告)日：1999-03-04

申请号：DE19737002

申请日：1997-08-26

Applicant: BASF AG

Inventor： BRAUN FRANK DR ,  HAHN KLAUS DR ,  LEIBACH MANFRED ,  KOEGEL WOLFRAM ,  GRAVE ISIDOOR DE DR

IPC: C08J9/18 ,  C08L23/02 ,  C08L23/10

Abstract: The invention relates to a method for producing expanded polyolefin particles, according to which polyolefin granulate is impregnated with a volatile expanding agent in suspension under pressure and then relaxed. The suspension medium has a lower density than the polyolefin granulate and the suspension is practically free of suspension stabilisers.

公开(公告)号：DE4126358A1

公开(公告)日：1993-02-11

申请号：DE4126358

申请日：1991-08-09

Applicant: BASF AG

Inventor： GRAVE ISIDOOR DE DR ,  FISCHER JOACHIM DR ,  GRAALMANN ONNO DR

IPC: C08J9/14 ,  C08F4/642 ,  C08F297/08 ,  C08J9/00 ,  C08L23/08 ,  C08L23/14 ,  C08L23/16 ,  C08L53/00

Abstract: In foams having a density of from 0.01 to 0.2 g/cm3 and a cell count of from 2 to 1,000 cells/mm2 and based on an impact copolymer, the impact copolymer consists of a) from 1 to 55% by weight of a block copolymer of a1) from 35 to 65% by weight of ethylene and a2) from 35 to 65% by weight of propylene and b) from 45 to 99% by weight of a random copolymer of b1) from 0.5 to 6% by weight of ethylene and from 94 to 99.5% by weight of propylene, or of b2) from 0.5 to 12% by weight of but-1-ene and 88 to 99.5% by weight of propylene.

公开(公告)号：DE19638039A1

公开(公告)日：1998-03-19

申请号：DE19638039

申请日：1996-09-18

Applicant: BASF AG

Inventor： HAHN KLAUS DR ,  BEUERMANN ILKA RENATE DR ,  GRAVE ISIDOOR DE DR ,  KOEGEL WOLFRAM

IPC: C08J9/18 ,  C08J5/00 ,  C08K3/20 ,  C08K3/28 ,  C08K5/42 ,  C08L23/12

公开(公告)号：DE4429844A1

公开(公告)日：1996-02-29

申请号：DE4429844

申请日：1994-08-23

Applicant: BASF AG

Inventor： SCHWEINZER JUERGEN DR ,  FISCHER JOACHIM DR ,  GRAVE ISIDOOR DE DR ,  KOEGEL WOLFRAM

IPC: B29C44/34 ,  C08J9/18 ,  C08L23/08 ,  C08L23/14 ,  B29C67/20 ,  B29B7/88 ,  B29B13/02

Abstract: The invention concerns a method of preparing expanded polyolefin particles by impregnating them with volatile expanding agents in a fluidized bed.

公开(公告)号：DE19506286A1

公开(公告)日：1996-08-29

申请号：DE19506286

申请日：1995-02-23

Applicant: BASF AG

Inventor： FISCHER JOACHIM DR ,  GRAVE ISIDOOR DE DR ,  FINK GUENTER ,  HUNGENBERG KLAUS-DIETER DR ,  KERSTING MEINOLF DR

IPC: C08F2/34 ,  C08F210/06 ,  C08F210/16 ,  C08J9/16 ,  C08L23/10 ,  C08L23/16 ,  C08F4/646 ,  C08J9/14 ,  C08J9/30

Abstract: The invention concerns statistical propylene copolymers in which 0.1-20 wt.% is accounted for by polymerisation-incorporated ethylene and the xylene-soluble components (XL) satisfy the inequation (I) XL >/= 3,8 + 1,2 [C2], in which [C2] represents the proportion by weight of the polymerisation-incorporated ethylene; and the proportion in wt.% of isotactic triads [mm] or isotactic pentads [mmmm] as determined by C nuclear magnetic resonance spectroscopy lies within the range determined by the inequations (IIa) 96.0 wt.% >/= [mm] and (IIb) 94.0 wt.% >/= [mmmm]. The statistical propylene copolymers are suitable for use as foam particles and moulded parts.

公开(公告)号：DE4436980A1

公开(公告)日：1996-04-18

申请号：DE4436980

申请日：1994-10-15

Applicant: BASF AG

Inventor： FISCHER JOACHIM DR ,  DIETZEN FRANZ-JOSEF DR ,  EHRMANN GERD DR ,  GRAVE ISIDOOR DE DR ,  RIEGER JENS DR

IPC: C08J9/16 ,  C08J9/228 ,  C08L23/14 ,  B29B9/06

Abstract: Prefoamed polyolefin particles produced by extrusion then by granulation have a crystalline structure with a double peak.

公开(公告)号：DE4429598A1

公开(公告)日：1996-02-22

申请号：DE4429598

申请日：1994-08-20

Applicant: BASF AG

Inventor： MARCZINKE BERND LOTHAR DR ,  FISCHER JOACHIM DR ,  GRAVE ISIDOOR DE DR ,  KOEGEL WOLFRAM ,  TATZEL HERMANN ,  HINGMANN ROLAND DR

IPC: B29C44/34 ,  C08F255/02 ,  C08J9/12 ,  C08J9/16 ,  C08J9/18 ,  C08L23/10 ,  C08L51/06 ,  C08J9/14 ,  B29C67/20 ,  B29B7/88 ,  B29B9/06

Abstract: Expanded polypropylene (EPP) particles with a density of 10-150 g/l and dia. of 2-10mm are based on a gel-free and partly crosslinked polymer (I) of more than 50 wt.% propylene and the polymer chains are linked by polyfunctional organic cpds. (II). Also claimed is a method for making the EPP particles.