公开(公告)号：BR9608801A

公开(公告)日：1999-02-17

申请号：BR9608801

申请日：1996-05-17

Applicant: BASF AG

Inventor： HAHN KLAUS ,  KOEGEL WOLFRAM ,  FISCHER JOACHIM ,  GRAVE ISIDOOR DE

IPC: C08J9/12 ,  C08J9/18 ,  C08L23/02

Abstract: PCT No. PCT/EP96/02116 Sec. 371 Date Nov. 24, 1997 Sec. 102(e) Date Nov. 24, 1997 PCT Filed May 17, 1996 PCT Pub. No. WO96/37541 PCT Pub. Date Nov. 28, 1996Expanded polyolefin particles are produced by impregnation of polyolefin granules with a volatile blowing agent in suspension under pressure and subsequent decompression. The blowing agent used is ammonia.

公开(公告)号：DE19729123A1

公开(公告)日：1999-01-14

申请号：DE19729123

申请日：1997-07-08

Applicant: BASF AG

Inventor： FINK GUENTER ,  KOEGEL WOLFRAM

IPC: B60P3/22 ,  B65G53/24 ,  B65D88/12 ,  B65D88/54

公开(公告)号：NO970804L

公开(公告)日：1997-04-21

申请号：NO970804

申请日：1997-02-21

Applicant: BASF AG

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

IPC: B29C44/34 ,  C08J9/18 ,  C08L23/08 ,  C08L23/14

Abstract: PCT No. PCT/EP95/03190 Sec. 371 Date Feb. 24, 1997 Sec. 102(e) Date Feb. 24, 1997 PCT Filed Aug. 11, 1995 PCT Pub. No. WO96/06129 PCT Pub. Date Feb. 29, 1996The invention relates to a process for the production of expanded polyolefin beads by impregnating polyolefin particles with volatile blowing agents in a fluidized bed.

公开(公告)号：DE59106179D1

公开(公告)日：1995-09-14

申请号：DE59106179

申请日：1991-04-05

Applicant: BASF AG

Inventor： DE GRAVE ISIDOOR DR ,  FISCHER JOACHIM DR ,  KOEGEL WOLFRAM ,  TATZEL HERMANN ,  GRAALMANN ONNO DR ,  KERTH JUERGEN DR ,  WERNER RAINER ALEXANDER DR

IPC: C08J9/14 ,  C08J9/16 ,  C08J9/18

Abstract: Novel foams having a density of from 0.01 to 0.1 g/cm3, based on a copolymer comprising ethylene, propylene and a C4- to C8- alpha -olefin, and having a torsion modulus of from 100 to 800 N/mm2 have high tensile, compressive and flexural strengths and at the same time high elongation at break.

公开(公告)号：DE4012239A1

公开(公告)日：1991-10-17

申请号：DE4012239

申请日：1990-04-14

Applicant: BASF AG

Inventor： DE GRAVE ISIDOOR DR ,  FISCHER JOACHIM DR ,  KOEGEL WOLFRAM ,  TATZEL HERMANN ,  GRAALMANN ONNO DR ,  KERTH JUERGEN DR ,  WERNER RAINER ALEXANDER DR

IPC: C08J9/14 ,  C08J9/16 ,  C08J9/18 ,  C08L23/14 ,  B29C67/20

Abstract: Novel foams having a density of from 0.01 to 0.1 g/cm3, based on a copolymer comprising ethylene, propylene and a C4- to C8- alpha -olefin, and having a torsion modulus of from 100 to 800 N/mm2 have high tensile, compressive and flexural strengths and at the same time high elongation at break.

公开(公告)号：DE2331306A1

公开(公告)日：1975-01-23

申请号：DE2331306

申请日：1973-06-20

Applicant: BASF AG

Inventor： TATZEL HERMANN ,  KOEGEL WOLFRAM ,  BECK GILBERT DIPL CHEM ,  ZUERN LUDWIG DIPL CHEM DR ,  CAESAR ARNDT

IPC: C08J9/22 ,  C08J9/236 ,  B29D27/00

Abstract: Foamed articles are made by compressing a mixt. of finely divided polyolefin with 0.3-4.0 g, per l, polyolefin, of a solvent-free curable blinder to 40-80% of the original bulk vol. of the mixt., whilst treating it with a gas of greater permeability coefft. than air. The polyolefin specif. has a crystallinity of >20 wt% at 25 degrees C and MFI 0.1-200 g/10 mins (190 degrees C/2.16 Kg, ASTM-D 1238-65T) and pref. is high pressure polyethylene of 0.918-0.935 g/cm3. The granules have an ave. dia. of 1-35 mm, pref. 3-20 mm and have a bulk density of 5-200 g/l, pref. 10-60 g/l. The binder is esp. a polyester or an epoxy resin, pref. in an amt. 0.6-2 g/l. The gas, (permeability coefft. measured to ASTM D 1434-63), is pret. ammonia or CO2, though (halogenated) hydrocarbons (b.pt. is not >15 degrees C) or CO may also be used. Compression is pref. to 50-70 vol%.

公开(公告)号：DE2331303A1

公开(公告)日：1975-01-23

申请号：DE2331303

申请日：1973-06-20

Applicant: BASF AG

Inventor： TATZEL HERMANN ,  KOEGEL WOLFRAM ,  BECK GILBERT DIPL CHEM ,  ZUERN LUDWIG DIPL CHEM DR ,  CAESAR ARNDT CHRISTIAN

IPC: C08J9/22 ,  C08J9/232 ,  B29D27/00

Abstract: Foamed polyolefin articles are made by heating and compressing foamed cross-linked polyolefin granules in moulds which are not gas-tight while treating them with a gas whose permeability coefficient is greater than that of air. The polyolefin has a crystallinity of >20 wt% at 25 degrees C and MFI of 0.1-200 g/10 mins (190 degrees C/2.16 Kg) and is pref. high pressure polyethylene of 0.918-0.935 g/cm3. The granules have an ave. dia. of 1-35 mm, pref. 3-20 mm and a bulk density of 5-200 g/l, pref. 10-60 g/l. The gas, (permeability coeff. measured to D/N 53380 or ASTM D 1434-63), is pref. ammonia or CO2. The granules, heated to 40-80 degrees C in the presence of the gas are transferred to the mould and sintered at 5-150 degrees C, pref. 10-100 degrees C above their crystalline m.pt., i.e. at 90-250 degrees C, pref. 110-180 degrees C. After heating, the granules are compressed to 40-80% pref. 50-70% of their original vol.

公开(公告)号：DE2331301A1

公开(公告)日：1975-01-23

申请号：DE2331301

申请日：1973-06-20

Applicant: BASF AG

Inventor： TATZEL HERMANN ,  KOEGEL WOLFRAM ,  BECK GILBERT DIPL CHEM ,  ZUERN LUDWIG DIPL CHEM DR ,  CAESAR ARNDT CHRISTIAN

IPC: B29D99/00 ,  B29C44/34 ,  B29C44/44 ,  B29C59/00 ,  B29C67/00 ,  B29C67/20 ,  C08J9/236 ,  B29D27/00

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：DE19519336A1

公开(公告)日：1996-11-28

申请号：DE19519336

申请日：1995-05-26

Applicant: BASF AG

Inventor： KOEGEL WOLFRAM ,  ISIDOOR GRAVE DE DR ,  HAHN KLAUS DR ,  FISCHER JOACHIM DR

IPC: C08J9/12 ,  C08J9/18 ,  C08L23/02 ,  C08L23/10 ,  B29B9/00

Abstract: The invention concerns a process for preparing expanded polyolefin particles by impregnation under pressure of polyolefin granulates with a volatile expanding agent in suspension and subsequent relaxation, ammonia being used as the expanding agent.