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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
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.
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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
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.
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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
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.
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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
Abstract: The invention concerns a method of preparing expanded polyolefin particles by impregnating them with volatile expanding agents in a fluidized bed.
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公开(公告)号：ES2080998T3
公开(公告)日：1996-02-16
申请号：ES92112671
申请日：1992-07-24
Applicant: BASF AG
Inventor： DEGRAVE ISIDOOR DR , FISCHER JOACHIM DR , GRAALMANN ONNO DR
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.
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Patent Agency Ranking
公开(公告)号：DE19545098A1
公开(公告)日：1997-06-05
申请号：DE19545098
申请日：1995-12-04
Applicant: BASF AG
Inventor： FISCHER JOACHIM DR , RIEGER JENS DR , HAHN KLAUS DR , GRAVE ISIDOR DE DR , KOEGEL WOLFRAM DIPL ING
IPC: B29C44/34 , C08J9/04 , C08J9/16 , C08J9/22 , C08J9/228 , C08L23/14 , C08L23/02 , C08J9/06 , C08J9/12
Abstract: The preparation of polyolefin foam particles of bulk density 20 - 100 g / l comprises: (A) pre-foamed particles of bulk density 120 - 400 g / l are prepared by extrusion and granulation of polyolefin containing propellent ; and (B) the particles are further foamed in one or more steps without the use of propellent, by treating with 1.5 - 8 bar steam for 5 - 120 seconds at 110 - 170 degrees C.
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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.
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公开(公告)号：DE4440057A1
公开(公告)日：1996-05-15
申请号：DE4440057
申请日：1994-11-10
Applicant: BASF AG
Inventor： BREEDE KNUT , BAUMANN KARL-HEINZ DR , FISCHER JOACHIM DR
Abstract: A continuous process for the prodn. of expanded polyolefin particles (I) comprises suspending the polymer particles in a dispersion medium, impregnating with a volatile blowing agent under elevated pressure and then discharging the impregnated particles into a low-pressure space. The impregnation stage is carried out in a screw machine. Pref. the polyolefin is a copolymer of propylene (P) with 0.5-15 wt.% ethylene (E) and/or 4-8C alpha -olefin, or a copolymer of ethylene with 3-18 wt.% 4-10C alpha -olefin. The blowing agent is propane, butane, pentane, hexane, CO2 or a mixt. thereof.
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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
Abstract: Prefoamed polyolefin particles produced by extrusion then by granulation have a crystalline structure with a double peak.
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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.
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