公开(公告)号：DE3851454D1

公开(公告)日：1994-10-20

申请号：DE3851454

申请日：1988-03-05

Applicant: BASF AG

Inventor： TATZEL HERMANN ,  ZUERN LUDWIG DR ,  ZETTLER HANS DIETER ,  SCHNEIDER WOLFBERG DR ,  DEMBEK GERHARD DR

IPC: B29C44/00 ,  B29B9/06 ,  B29C44/34 ,  B29C44/50 ,  B29K23/00 ,  C08J9/16 ,  C08J9/22 ,  C08J9/228 ,  B29C67/22

Abstract: Polyolefin foams which have a density of from 30 to 300 g/l, do not exhibit after-shrinkage and possess taut cells are prepared by letting down a polyolefin/blowing agent gel, the latter first being let down to 0.1-10 bar gage pressure and the foam being kept at this pressure until it has cooled to at least 20 DEG C. below the expansion temperature.

公开(公告)号：DE3723301A1

公开(公告)日：1989-01-26

申请号：DE3723301

申请日：1987-07-15

Applicant: BASF AG

Inventor： WEBER REINHOLD ,  ZUERN LUDWIG DR ,  WEILBACHER MANFRED DR

IPC: B29C47/00 ,  B29K25/00 ,  B29K105/04 ,  C08J9/12 ,  C08J9/14 ,  C08L25/04

Abstract: Closed-celled foams of high compressive strength are obtained by extruding a mixture of a styrene polymer and from 8 to 16% by weight of a blowing agent mixture containing from 2 to 20% by weight of ethyl chloride, from 2 to 20% by weight of carbon dioxide, from 20 to 80% by weight of dichlorodifluoromethane and from 10 to 60% by weight of monochlorodifluoromethane.

公开(公告)号：DE2960371D1

公开(公告)日：1981-08-27

申请号：DE2960371

申请日：1979-06-11

Applicant: BASF AG

Inventor： CAESAR ARNDT CHRISTIAN ,  KOEGEL WOLFRAM ,  ZUERN LUDWIG DR ,  GAERTNER FRIEDHELM

IPC: C04B28/26 ,  C09D5/18 ,  C09K21/02 ,  C04B43/00 ,  C04B19/04

公开(公告)号：DE2238128A1

公开(公告)日：1974-03-14

申请号：DE2238128

申请日：1972-08-03

Applicant: BASF AG

Inventor： BUCHHOLZ KARL DR ,  STAHNECKER ERHARD DR ,  ZUERN LUDWIG DR ,  BURGER HEIN DR

IPC: C08F2/00 ,  C08F2/18 ,  C08F2/44 ,  C08F279/02 ,  C08J9/16 ,  C08J9/20 ,  C08F7/04

公开(公告)号：DE2140192A1

公开(公告)日：1973-02-22

申请号：DE2140192

申请日：1971-08-11

Applicant: BASF AG

Inventor： KRAUCH CARL-HEINRICH DR ,  SANNER AXEL DR ,  ZUERN LUDWIG DR

IPC: C02F1/32 ,  C02F9/00 ,  C02F11/20 ,  C02C5/02

Abstract: Waste liquors (effluents), contg. monomers and/or polymers in dissolved or dispersed form with at least one photopolymerisable C=C bond, are clarified by partly or completely freezing them, irradiating them in this condition so as to polymerise the monomers, and separating the relatively insol. impurities after thawing. Purification is almost quantitative. Applied e.g. in mfre. to textile, pharmaceutical and sedimentation aids, thickeners, (meth)acrylic acid and derivs., foamable PS.

公开(公告)号：DE3062897D1

公开(公告)日：1983-06-01

申请号：DE3062897

申请日：1980-09-23

Applicant: BASF AG

Inventor： FRIED MICHAEL DR ,  ZUERN LUDWIG DR ,  WEILBACHER MANFRED DR ,  WEBER REINHOLD

IPC: C08L25/00 ,  C08J9/00 ,  C08K5/00 ,  C08K5/17 ,  C08K5/31 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L25/04 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  C08L101/00

公开(公告)号：DE2960147D1

公开(公告)日：1981-03-26

申请号：DE2960147

申请日：1979-03-28

Applicant: BASF AG

Inventor： ZUERN LUDWIG DR ,  CAESAR ARNDT CHRISTIAN ,  KOEGEL WOLFRAM

IPC: C04B28/26 ,  C04B19/04

公开(公告)号：DE2524196A1

公开(公告)日：1976-12-16

申请号：DE2524196

申请日：1975-05-31

Applicant: BASF AG

Inventor： KOEGEL WOLFRAM ,  TATZEL HERMANN ,  BECK GILBERT ,  ZUERN LUDWIG DR ,  STAHNECKER ERHARD DR

IPC: C08J9/22 ,  B29C43/00 ,  B29C45/00 ,  C08J9/232 ,  B29D27/00

公开(公告)号：DE2209986A1

公开(公告)日：1973-09-06

申请号：DE2209986

申请日：1972-03-02

Applicant: BASF AG

Inventor： POPP KARL HUGO DR ,  HESS KLAUS DR ING ,  SIMMLER WERNER DR ING ,  STICKEL RICHARD ,  ZUERN LUDWIG DR

IPC: B03D1/02 ,  C02F1/24 ,  C02F9/00 ,  C02C5/06

公开(公告)号：CH538425A

公开(公告)日：1973-08-15

申请号：CH1473172

申请日：1972-10-09

Applicant: BASF AG

Inventor： STAHNECKER ERHARD DR ,  GEORG RUPPERT ,  MOELLER ROLF DR ,  SCHICK RUPERT DR ,  ZUERN LUDWIG DR

IPC: B29C44/56 ,  B29C53/00 ,  B29C59/00 ,  B29C59/04 ,  B29C69/00 ,  B29D99/00 ,  B65D65/00 ,  B65D81/09 ,  B68G1/00 ,  B29D27/00 ,  B65D65/44