中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

82 records (took 0.024 seconds)

    THERMOPLASTIC ELASTOMER
    21.
    发明专利
    THERMOPLASTIC ELASTOMER 未知

    公开(公告)号：CA2193264C

    公开(公告)日：2007-01-09

    申请号：CA2193264

    申请日：1995-06-08

    Applicant: BASF AG

    Inventor： KNOLL KONRAD ,  GAUSEPOHL HERMANN ,  NIESSNER NORBERT ,  BENDER DIETMAR ,  NAEGELE PAUL

    IPC: C08F297/04 ,  C08J5/18 ,  C08L53/02

    Abstract: A rubber elastic block copolymer has at least one block A made of polymerise d units of a vinyl aromatic monomer that forms a hard phase and/or a block B with diene monomers that forms a first rubber elastic (soft) phase, and at least one elastomer block B/A with polymerised units of both a vinyl aromatic monomer and a diene that for ms if required a second or additional soft phase. The glass transition temperature T g of block A is higher than 25 .degree.C and that o f blocks B or B/A is lower than 25 .degree.C. The phase volume ratio between blocks A and B/A is selected so that the hard phase represents 1 - 40 % by volume of the total block copolymer and the diene amounts to less than 50 % by weight.

    THERMOPLASTIC MOLDING MATERIAL
    22.
    发明专利
    THERMOPLASTIC MOLDING MATERIAL 未知

    公开(公告)号：CA2221460C

    公开(公告)日：2006-07-11

    申请号：CA2221460

    申请日：1997-04-03

    Applicant: BASF AG

    Inventor： FISCHER WOLFGANG ,  NAEGELE PAUL ,  NIESSNER NORBERT ,  GAUSEPOHL HERMANN ,  KNOLL KONRAD

    IPC: C08F297/04

    Abstract: Rubber-elastic block copolymers of at least one hard block A consisting of styrene monomers and at least one elastomeric block (B/A) of styrene monomers and containing dienes, the glass temperature T g o f block A being over 25 .degree.C and that of block B/A is under 25 .degree.C and the phase volume ratio between block A and block B/A being such that the proportion of the hard phase in the entire block copolymer is 1 to 40 vol %, and the proportion by weight of the diene is und er 50 wt.%. The relative proportion of 1,2 bonds of the polydiene in relation to the sum of 1,2 and 1,4 cis/trans-bonds is under 15 %, process for their production by anionic polymerisation by means of lithium alkyl in a non-polar solvent in the presence of a soluble potassium salt and their use for the production of mouldings.

    25.
    发明专利
    未知

    公开(公告)号：DE59711544D1

    公开(公告)日：2004-05-27

    申请号：DE59711544

    申请日：1997-05-26

    Applicant: BASF AG

    Inventor： NIESSNER NORBERT ,  KNOLL KONRAD

    IPC: B32B25/08 ,  B32B27/00 ,  C08J5/18 ,  C08L53/02

    Abstract: PCT No. PCT/EP97/02682 Sec. 371 Date Jan. 13, 1998 Sec. 102(e) Date Jan. 13, 1998 PCT Filed May 26, 1997 PCT Pub. No. WO97/46608 PCT Pub. Date Dec. 11, 1997A film in roll form, in particular for food packaging as substitute for a film made from polyvinyl chloride, comprises from 15 to 99.6% by weight of an elastomeric styrene-butadiene block copolymer, from 15 to 99.6% of a thermoplastic polymer, from 0.1 to 10% of an antifogging agent, from 0.1 to 5% of a primary antioxidant, from 0.1 to 5% of a secondary antioxidant and from 0.1 to 50% of other auxiliaries, and shrinks perpendicularly to the direction of take-off by not more than 3% during a storage period of three months.

    PROCEDIMIENTO PARA LA OBTENCION DE PARTICULAS DE CAUCHO.
    27.
    发明专利
    PROCEDIMIENTO PARA LA OBTENCION DE PARTICULAS DE CAUCHO. 未知

    公开(公告)号：MXPA02008381A

    公开(公告)日：2002-12-13

    申请号：MXPA02008381

    申请日：2001-03-14

    Applicant: BASF AG

    Inventor： NIESSNER NORBERT

    IPC: C08F2/00 ,  C08F2/22 ,  C08F2/24 ,  C08F36/00 ,  C08F36/04 ,  C08F36/06

    Abstract: Procedimiento para la obtencion de particulas de caucho K que contienen en forma polimerizada A) 80 a 100% en peso, con respecto a K, de uno o varios monomeros de dieno conjugados A, y B) 0 a 20% en peso, con respecto a K, de uno o varios comonomeros etilenicamente insaturados B mediante polimerizacion en emulsion en presencia de un emulsionante y un iniciador de polimerizacion, cuyo procedimiento esta caracterizado porque se presenta como carga inicial una mezcla MI que contiene, agua y emulsionante, 2) se adiciona una mezcla M2 que contiene uno o mas monomeros en forma monomera o polimerizada, seleccionados de: estireno, a-metilestireno, butadieno, acrilato de n-butilo, metilmetacrilato y acrilonitrilo, y eventualmente comonomeros, 3) se inicia la polimerizacion de la mezcla obtenida en presencia del iniciador de polimerizacion a temperaturas de 5 a 95°C, 4) se adiciona una mezcla M3 que contiene 0 a 100% en peso, con respecto a B, de los comonomeros B, y 0 a 25% en peso, con respecto a A, de los monomeros de dieno A, 5) se dosifica una mezcla M4 que contiene los (restantes) monomeros de dieno A y los (restantes) comonomeros B, y se polimeriza, 6) se interrumpre la polimerizacion una vez alcanzada una conversion de por encima de 90 y por debajo de 95%, con respecto a la suma de los monomeros.

    THERMOPLASTISCHES ELASTOMER
    28.
    发明专利
    THERMOPLASTISCHES ELASTOMER 未知

    公开(公告)号：DE59509944D1

    公开(公告)日：2002-01-24

    申请号：DE59509944

    申请日：1995-06-08

    Applicant: BASF AG

    Inventor： KNOLL KONRAD ,  GAUSEPOHL HERMANN ,  NIESSNER NORBERT ,  BENDER DIETMAR ,  NAEGELE PAUL

    IPC: C08F297/04 ,  C08J5/18 ,  C08L53/02

    Abstract: PCT No. PCT/EP95/02207 Sec. 371 Date Dec. 17, 1996 Sec. 102(e) Date Dec. 17, 1996 PCT Filed Jun. 8, 1995 PCT Pub. No. WO95/35335 PCT Pub. Date Dec. 28, 1995An elastomeric block copolymer comprising at least one block A having polymerized units of a vinylaromatic monomer and forming a rigid phase and at least one elastomeric block B/A having polymerized units of both vinylaromatic monomers and of a diene and forming a flexible phase, and glass transition temperature Tg of the block A being above 25 DEG C. and that of the block B/A being below 25 DEG C. and the phase volume ratio of block A to block B/A being chosen so that the amount of the rigid phase in the total block copolymer is 1 to 40% by volume and the amount of the diene is less than 50% by weight.

    Method for producing impact resistant plastics
    29.
    发明专利
    Method for producing impact resistant plastics 未知

    公开(公告)号：AU2850501A

    公开(公告)日：2001-08-07

    申请号：AU2850501

    申请日：2001-01-26

    Applicant: BASF AG

    Inventor： KEE GRAHAM EDMUND MC ,  GAUSEPOHL HERMANN ,  NIESSNER NORBERT

    IPC: C08F279/02 ,  C08F279/04 ,  C08F285/00 ,  C08L51/04 ,  C08L55/02

    Abstract: The invention relates to a process for preparing an impact-modified plastic based on grafted crosslinked rubber particles, and also to an impact-modified plastic obtainable by the process. To prepare the impact-modified plastic, (a) particles of a crosslinked rubber are produced from a first monomer mixture which has a content of at least 50% by weight, preferably at least 90% by weight, particularly preferably at least 98% by weight, of diene compounds. The particles of the crosslinked rubber are (b) grafted with a second monomer or monomer mixture, with formation of a graft shell. Particles of the grafted crosslinked rubber are (c) added to a third monomer mixture, and the monomers of the third monomer mixture (d) are polymerized, with formation of a matrix. The process of the invention is simple to carry out and gives impact-modified plastics with very good mechanical properties.

Patent Agency Ranking