公开(公告)号：CA1057450A

公开(公告)日：1979-06-26

申请号：CA236889

申请日：1975-10-02

Applicant: BASF AG

Inventor： HINSELMANN KLAUS ,  PENZIEN KLAUS ,  SCHICK RUPERT ,  WALTER MANFRED ,  WEBER HEINZ ,  WIRTH HEINRICH

IPC: C08J9/00 ,  C08J9/16 ,  C08J9/22 ,  C08K5/00 ,  C08L25/06

Abstract: Particulate expandable styrene polymers which contain from 0.0001 to 0.2% by weight, based on the styrene polymer, of an inhomogeneously distributed nucleating agent for expandable polystyrene, the nucleating agent being present only in a peripheral zone of the particles whilst the interior of the particles is free from nucleating agent. Nucleating agents which may be used are organic compounds having at least three bromine atoms, bonded to aliphatic or cycloaliphatic structures, in the molecule, or bromine compounds which are polymerizable, or are copolymerizable with styrene.

公开(公告)号：FI752642A

公开(公告)日：1976-04-12

申请号：FI752642

申请日：1975-09-22

Applicant: BASF AG

Inventor： HINSELMANN KLAUS ,  PENZIEN KLAUS ,  SCHICK RUPERT ,  WALTER MANFRED ,  WEBER HEINZ ,  WIRTH HEINRICH

IPC: C08J9/00 ,  C08J9/16 ,  C08J

公开(公告)号：NO140501C

公开(公告)日：1979-09-12

申请号：NO753370

申请日：1975-10-06

Applicant: BASF AG

Inventor： HINSELMANN KLAUS ,  PENZIEN KLAUS ,  SCHICK RUPERT ,  WALTER MANFRED ,  WEBER HEINZ ,  WIRTH HEINRICH

IPC: C08J9/00 ,  C08J9/16 ,  C08J9/22

公开(公告)号：DE3741095A1

公开(公告)日：1989-06-15

申请号：DE3741095

申请日：1987-12-04

Applicant: BASF AG

Inventor： WEBER REINHOLD ,  WEILBACHER MANFRED DR ,  TATZEL HERMANN ,  ZUERN LUDWIG DR ,  ZETTLER HANS DIETER ,  HINSELMANN KLAUS

IPC: B29C47/00 ,  B29C44/00 ,  B29C44/34 ,  B29C44/50 ,  B29C48/355 ,  B29K25/00 ,  B29K105/04 ,  C08J9/04 ,  C08J9/12 ,  C08L25/04

Abstract: Foams of high compressive strength are obtained by extruding a mixture of a styrene polymer and from 3 to 9 % by weight of a blowing agent comprising from 80 to 100 % by weight of CO2 and from 0 to 20 % by weight of at least one hydrocarbon or halogenated hydrocarbon which is gaseous at room temperature, the mixture being extruded in a zone at an excess pressure of from 0.1 to 2 bar, and the foam being allowed to solidify under this pressure.

公开(公告)号：DE3276321D1

公开(公告)日：1987-06-19

申请号：DE3276321

申请日：1982-11-18

Applicant: BASF AG

Inventor： SADLOWSKI JUERGEN DR ,  WALTER MANFRED DR ,  HINSELMANN KLAUS

IPC: C08G2/00 ,  C08G2/10 ,  C08G2/30

Abstract: Oxymethylene polymers are prepared by a continuous process, by mass polymerization of the monomers with the aid of conventional, preferably cationic, initiators, wherein the monomers as well as the resulting polymer are present substantially in molten form during the polymerization.

公开(公告)号：CA1128700A

公开(公告)日：1982-07-27

申请号：CA358010

申请日：1980-08-08

Applicant: BASF AG

Inventor： HAHN KLAUS ,  HINSELMANN KLAUS ,  HALBRITTER KLAUS ,  REBAFKA WALTER ,  WEBER HEINZ

IPC: C08J9/00 ,  C08K5/57 ,  C08J9/14 ,  C08L25/06

Abstract: A PROCESS FOR THE MANUFACTURE OF FLAME RETARDANT POLYSTYRENE FOAMS This invention relates to a process of making flame-retardant polystyrene foams by an extrusion process in which a stabilizer of a dialkyl-tin carboxylate or a mixture of a dialkyl tin carboxylate and a barium and/or cadmium carboxylate is added to the extrusion melt.

公开(公告)号：DE3873886D1

公开(公告)日：1992-09-24

申请号：DE3873886

申请日：1988-11-25

Applicant: BASF AG

Inventor： WEBER REINHOLD ,  WEILBACHER MANFRED DR ,  TATZEL HERMANN ,  ZUERN LUDWIG DR ,  ZETTLER HANS DIETER ,  HINSELMANN KLAUS

IPC: B29C47/00 ,  B29C44/00 ,  B29C44/34 ,  B29C44/50 ,  B29C48/355 ,  B29K25/00 ,  B29K105/04 ,  C08J9/04 ,  C08J9/12 ,  C08L25/04 ,  B29C67/22

Abstract: Foams with high compressive strength (I) are mfd. by extruding a mixt. of a styrene polymer (II), 3-9 wt.% blowing agent (III) comprising 80-100 wt.% CO2 and 0-20 wt.% hydrocarbon or halogenated hydrocarbon which is a gas at room temp. (IV), and the usual additives if required; the mixt. is extruded in a zone with an overpressure of 0.1-2 bar and allowed to set at this pressure. Pref. component (IV) has b.pt. -50 to +15 deg.C. (IV) is, e.g. propane, butane, isobutane, MeCl, EtCl, CCl2F2, etc.; pref., overpressure in the extrusion chamber is 0.4-1.6 bar.

公开(公告)号：DE3270750D1

公开(公告)日：1986-05-28

申请号：DE3270750

申请日：1982-07-15

Applicant: BASF AG

Inventor： HINSELMANN KLAUS ,  NAARMANN HERBERT DR ,  ECHTE ADOLF DR ,  HEIL EDUARD ,  NIKLES ALBERT ,  REFFERT RUDI WILHELM ,  HAMBRECHT JUERGEN DR

IPC: C08L7/00 ,  B29C35/00 ,  B29C45/00 ,  C08G65/46 ,  C08J3/00 ,  C08J3/20 ,  C08L21/00 ,  C08L23/00 ,  C08L33/00 ,  C08L33/02 ,  C08L71/00 ,  C08L71/12 ,  C08L101/00 ,  C08L71/04

Abstract: Molding materials containing high molecular weight polyphenylene ethers are produced by a process in which a solution of a polyphenylene ether in an organic solvent, together with another polymer, is freed of solvent by multi-stage evaporation. The solvent is preferably an aromatic compound from the class comprising the hydrocarbons, halohydrocarbons, ethers or esters, the ratio of the other polymer to the polyphenylene ether is advantageously from 99:1 to 20:80 parts by weight, the other polymer is, in particular, a homopolymer or copolymer of styrene or of a homolog thereof, which may be modified with rubber, and the multi-stage evaporation process preferably comprises not less than two and not more than four working up stages. The evaporation is carried out in general at from 120 DEG to 280 DEG C. and under a pressure of from 1 to 3,000 mbar, advantageously in the presence of assistants which reduce the partial pressure, eg. water and/or methanol.

公开(公告)号：DE2932303A1

公开(公告)日：1981-02-26

申请号：DE2932303

申请日：1979-08-09

Applicant: BASF AG

Inventor： HAHN KLAUS DIPL CHEM DR ,  HINSELMANN KLAUS ,  HALBRITTER KLAUS DIPL CHEM DR ,  REBAFKA WALTER DIPL CHEM DR ,  WEBER HEINZ DIPL CHEM DR

IPC: C08J9/00 ,  C08J9/14 ,  C08L25/04 ,  C08K5/57

Abstract: This invention relates to a process of making flame-retardant polystyrene foams by an extrusion process in which a stabilizer of a dialkyl-tin carboxylate or a mixture of a dialkyl tin carboxylate and a barium and/or cadmium carboxylate is added to the extrusion melt.

公开(公告)号：CA1205594A

公开(公告)日：1986-06-03

申请号：CA407664

申请日：1982-07-20

Applicant: BASF AG

Inventor： HINSELMANN KLAUS ,  NAARMANN HERBERT ,  ECHTE ADOLF ,  HEIL EDUARD ,  NIKLES ALBERT ,  REFFERT RUDI W ,  HAMBRECHT JUERGEN

IPC: C08L7/00 ,  B29C35/00 ,  B29C45/00 ,  C08G65/46 ,  C08J3/00 ,  C08J3/20 ,  C08L21/00 ,  C08L23/00 ,  C08L33/00 ,  C08L33/02 ,  C08L71/00 ,  C08L71/12 ,  C08L101/00 ,  C08L71/04 ,  C08L25/04 ,  C08L51/04

Abstract: Molding materials containing high molecular weight polyphenylene ethers are produced by a process in which a solution of a polyphenylene ether in an organic solvent, together with another polymer, is freed of solvent by multi-stage evaporation. The solvent is preferably an aromatic compound from the class comprising the hydrocarbons, halohydrocarbons, ethers or esters, the ratio of the other polymer to the polyphenylene ether is advantageously from 99 : 1 to 20 : 80 parts by weight, the other polymer is, in particular, a homopolymer or copolymer of styrene or of a homolog thereof, which may be modified with rubber, and the multi-stage evaporation process preferably comprises not less than two and not more than four workingup stages. The evaporation is carried out in general at from 120 to 280.degree.C and under a pressure of from 1 to 3,000 mbar, advantageously in the presence of assistants which reduce the partial pressure, eg. water and/or methanol.