11.
    发明专利
    未知

    公开(公告)号:DE59108958D1

    公开(公告)日:1998-04-30

    申请号:DE59108958

    申请日:1991-12-27

    Applicant: BASF AG

    Abstract: Shock-absorbing propylene polymer composite moulded articles containing …… a. a layer of thickness 0.5 to 10 mm, containing a propylene polymer of melting point 130 to 165 DEG C, … b. an intermediate layer of thickness 0.05 to 0.5 mm of a melt adhesive based on an olefin copolymer of melting point 90 to 140 DEG C, … c. a foam layer of thickness 3 to 200 mm having a density of 0.015 to 0.1 g/cm based on a propylene copolymer of melting point 125 to 155 DEG C, … d. an intermediate layer of thickness 0.05 to 0.5 mm of a melt adhesive based on an olefin copolymer of melting point 90 to 140 DEG C, … e. a layer of thickness 0.5 to 10 mm containing a propylene polymer of melting point 130 to 165 DEG C. …

    SHOCK-ABSORBING PROPYLENE POLYMER COMPOSITE MOLDINGS

    公开(公告)号:AU1038792A

    公开(公告)日:1992-08-06

    申请号:AU1038792

    申请日:1992-01-22

    Applicant: BASF AG

    Abstract: Shock-absorbing propylene polymer composite moulded articles containing …… a. a layer of thickness 0.5 to 10 mm, containing a propylene polymer of melting point 130 to 165 DEG C, … b. an intermediate layer of thickness 0.05 to 0.5 mm of a melt adhesive based on an olefin copolymer of melting point 90 to 140 DEG C, … c. a foam layer of thickness 3 to 200 mm having a density of 0.015 to 0.1 g/cm based on a propylene copolymer of melting point 125 to 155 DEG C, … d. an intermediate layer of thickness 0.05 to 0.5 mm of a melt adhesive based on an olefin copolymer of melting point 90 to 140 DEG C, … e. a layer of thickness 0.5 to 10 mm containing a propylene polymer of melting point 130 to 165 DEG C. …

    Moulded bodies of foamed polyolefin - free from cavities, useful as packing and insulation material

    公开(公告)号:DE2331305A1

    公开(公告)日:1975-01-23

    申请号:DE2331305

    申请日:1973-06-20

    Applicant: BASF AG

    Abstract: Prodn. of moulded bodies comprises mixing finely divided foam-forming polyolefin particles with 0.3 to 4 g., pref. 0.6-2 g., (per 1. of polyolefin) of a solvent-free hardenable blinder, pressing together the mixt. to 5-70% (pref. 40-70%) of its bulk volume, and hardening under pressure, and introducing needles of dia. is not >5 mm, into the mixt. before, during or after the step of pressing the mixt. and removing the needles again before the hardening step. The polymers are derived from 2-4C olefins, and have an X-ray crystallinity at 25 degrees C >25 wt%., e.g. homopolymers or copolymers of ethylene and propylene; esp. copolymers of ethylene with esters of (meth)acrylic acid or vinylcarboxylic acid esters contg. >=50 wt% of ethylene units. The introduction and removal of the needles forms channels through which air can escape from the mixt. and the resulting moulded bodies are free from cavities. The prods. can be used for forming shock-absorbing packing matl., sound-absorbing plates, and insulation in the building industry.

    17.
    发明专利
    未知

    公开(公告)号:DE1669713A1

    公开(公告)日:1971-03-25

    申请号:DE1669713

    申请日:1967-08-16

    Applicant: BASF AG

    Abstract: 1,227,454. Expanded ethylene/ester copolymers. BADISCHE ANILIN- & SODAFABRIK A.G. 15 Aug., 1968 [16 Aug., 1967], No. 39077/68. Headings C3C and C3P. A cross-linked expanded polymer is produced by mixing, e.g. in an extruder, a thermoplastic copolymer of ethylene with a vinyl ester of a saturated acid or an ester-of an ethylenically unsaturated acid in the plastic condition with a polyisocyanate and an expanding agent under such pressure that the copolymer is not expanded followed by decompression to allow expansion. The ethylene copolymer may contain units derived from vinyl acetate or acrylic acid and n-hexyl, ethyl or n- or tert-butyl acrylate. The polyisocyanate may be 4,4 1 - dicyclohexylmethane di-isocyanate or its 3,3 1 - dimethyl derivative; others are also exemplified. The expanding agent may be a mixture of iso- and n-butane and/or dichlorodifluoromethane, propane or neopentane or azodicarbonamide or p,p 1 - oxybenzene - sulphohydrazide. Talc may be used as a nucleating agent. The copolymer mixture may also contain polybutene, polyisobutylene or polypropylene and zinc oxide.

    CUERPO MOLDEADO DE MATERIAL CELULAR INSONORIZANTE.

    公开(公告)号:ES2246552T3

    公开(公告)日:2006-02-16

    申请号:ES99108136

    申请日:1999-04-26

    Applicant: BASF AG

    Abstract: LA INVENCION DE REFIERE A UN CUERPO MOLDEADO DE MATERIAL ESPONJOSO PARA ABSORBER RUIDO, QUE MUESTRA UN GRADO DE ABSORCION DESDE 30 HASTA 95 % EN LA ZONA DE FRECUENCIAS DESDE 0,5 HASTA 4 KHZ SEGUN DIN 52215. EL MATERIAL ESPONJOSO ES UN MATERIAL ESPONJOSO DE PARTICULAS DE POLISTIROL O POLIOLEFINAS NO SOLDABLE COMPLETAMENTE CON UN VOLUMEN DE CUADRADILLO ENTRE 10 Y 40 %.

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