公开(公告)号：ES2109759T3

公开(公告)日：1998-01-16

申请号：ES95112676

申请日：1995-08-11

Applicant: BASF AG

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

IPC: B29C44/34 ,  C08F255/02 ,  C08J9/12 ,  C08J9/16 ,  C08J9/18 ,  C08L23/10 ,  C08L51/06

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.

公开(公告)号：DE4416852A1

公开(公告)日：1995-11-16

申请号：DE4416852

申请日：1994-05-13

Applicant: BASF AG

Inventor： HENN ROLF DR ,  HAHN KLAUS DR ,  HOENL HANS DR ,  HECKMANN WALTER DR ,  WASMER KARL-HEINZ DR ,  KLEMENT ERICH ,  FISCHER JOACHIM DR

IPC: C08J9/18 ,  C08L23/00 ,  C08L25/04 ,  C08L53/00 ,  C08L21/00 ,  C08L23/02 ,  C08J9/12 ,  C08J9/232 ,  B29C67/20

Abstract: Expandable styrene polymers (I) for elastic polystyrene foam contain (a) 50-75 wt.% polystyrene and/or a copolymer with at least 50 wt.% polystyrene, (b) 5-30 wt.% styrene-soluble elastomer(s), (c) 5-20 wt.% block copolymer(s) with a styrene component, (d) 15-50 wt.% polyolefin(s), (e) 1-15 wt.%, w.r.t. (a)+(b), of a low-boiling blowing agent and opt. (f) usual additives in effective amts. Also claimed are a method for producing (I); elastic foam with a density of 5-70 g/l prepd. from (I); and a method of producing mouldings from (I). Pref. (b) has a Tg below 20 degrees C and esp. is polybutadiene. (c) contains at least 20 wt.% styrene and is a styrene-butadiene (SB) block copolymer, esp. a SB diblock copolymer and/or SBS triblock copolymer. (d) is polyethylene, opt. mixed with polypropylene.

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：DE59501066D1

公开(公告)日：1998-01-15

申请号：DE59501066

申请日：1995-08-11

Applicant: BASF AG

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

IPC: B29C44/34 ,  C08F255/02 ,  C08J9/12 ,  C08J9/16 ,  C08J9/18 ,  C08L23/10 ,  C08L51/06

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.

公开(公告)号：DE59204898D1

公开(公告)日：1996-02-15

申请号：DE59204898

申请日：1992-07-24

Applicant: BASF AG

Inventor： DEGRAVE ISIDOOR 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：DE4420590A1

公开(公告)日：1995-12-14

申请号：DE4420590

申请日：1994-06-13

Applicant: BASF AG

Inventor： FISCHER JOACHIM DR

IPC: C08J9/00 ,  C08J9/18 ,  C08L23/04 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/02 ,  C08J9/16

Abstract: Particulate polyolefin foam (I) is based on a phase-compatible mixt. of: (A) two or more ethylene polymers A1+A2+ .... or (B) two or more propylene polymers B1+B2+ ... of different compsn. w.r.t. type and content of monomers. The differential scanning calorimetry curve obtd. by heating 3-6 mg. of the foam particles to 220 deg C at 20 deg C/minute shows two peaks at least 17 deg C apart. Also claimed is a process for the prodn. of (I): (a) by co-extruding and granulating the polymers and foaming the granules obtd., or (b) by copolymerising the corresp. monomers in a reactor cascade, extruding and granulating the reactor blend obtd., and foaming the granules.

公开(公告)号：DE4307648A1

公开(公告)日：1994-09-15

申请号：DE4307648

申请日：1993-03-11

Applicant: BASF AG

Inventor： FISCHER JOACHIM DR ,  GRAALMANN ONNO DR ,  LAUSBERG DIETRICH DR

IPC: C08J9/18 ,  C08J9/232 ,  C08L75/04 ,  C08J9/12 ,  C08J9/16 ,  C08K7/14

公开(公告)号：DE3929054A1

公开(公告)日：1991-03-07

申请号：DE3929054

申请日：1989-09-01

Applicant: BASF AG

Inventor： PALMA FELLENBERG ALFREDO DR ,  FISCHER JOACHIM DR

IPC: C08J3/12 ,  C08F2/34 ,  C08F6/00 ,  C08F6/06 ,  C08F6/24 ,  C08J3/16 ,  C08J3/205 ,  C08J7/04 ,  C08J9/16

Abstract: Bead-form olefin polymers are obtained from grit-form olefin polymers by heating in aqueous suspension to temperatures of at least 10 DEG C above their DSC maximum. Incorporation of dyes, stabilisers and/or other fillers can be carried out by coating the grit olefin polymers with these substances in advance. The bead-form polymers are used to produce foam beads by the impregnation process.