2.
    发明专利
    未知

    公开(公告)号:DE50104216D1

    公开(公告)日:2004-11-25

    申请号:DE50104216

    申请日:2001-04-17

    Applicant: BASF AG

    Abstract: The invention relates to a process for the production of a multilayered composite element which comprises a layer of leather, a layer of a hard component formed from a polymer, which is bonded to the leather layer in certain areas, and a layer of a soft component, which is arranged between the leather component and the hard component, which comprises laying the leather against one mold surface of a mold, positioning the soft component on the leather, and molding the polymer acting as hard component onto the leather layer and the soft component layer at a pressure of at least 50 bar, preferably greater than 100 bar, in particular greater than 180 bar, and at a temperature of greater than 100° C., preferably from 180 to 280° C., in particular from 200 to 250° C., by bonding the leather and the hard component to one another in certain areas at least, with temperature of the mold surface of the mold being controlled, at least during the bonding. The invention furthermore relates to a composite element obtainable by the process. The composite element is extremely robust, has a soft touch surface and is inexpensive to produce.

    4.
    发明专利
    未知

    公开(公告)号:DE10017486A1

    公开(公告)日:2001-10-11

    申请号:DE10017486

    申请日:2000-04-07

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing a multilayer composite body comprising a leather layer, a layer produced from a first polymer acting as the soft component and adjoining on one side the leather layer, and a layer produced from a second polymer acting as the hard component and adjoining said layer. The leather and the first polymer acting as the soft component are interlinked by means of a tool that has a molding surface on which the leather comes to rest at a pressure of at least 50 bar, preferably of more than 100 bar, especially more than 180 bar, and at a temperature of more than 100 DEG C, preferably 180 to 280 DEG C, especially 200 to 250 DEG C. The molding surface of the tool resting against the leather is brought to the desired temperature and the second polymer acting as the hard component is molded onto the first polymer. The invention further relates to a composite body obtained by the inventive method. The inventive composite body is characterized by its high stability and robustness and imparts a soft touch sensation when the leather surface is touched.

    10.
    发明专利
    未知

    公开(公告)号:DE50208557D1

    公开(公告)日:2006-12-07

    申请号:DE50208557

    申请日:2002-07-30

    Applicant: BASF AG

    Abstract: A laminate including a decorative material (A), a layer of cellular polyisocyanate/polyaddition elastomer (B) giving an outstanding Soft-Touch-Effect to a decorative, e.g. leather surface, combined with excellent residual elasticity is new. A composite structural unit (sic) including a decorative material (A), a layer of cellular polyisocyanate/polyaddition elastomer (CPIE) (B) of residual pressure deformation (sic) of 25% in accordance with DIN 53572, using a 40x40x30 mm test body without a silicone coating, with testing at constant deformation, where the test body is 40% compressed and held in a recirculated air facility (sic) for 22 hours at 80 deg C, after withdrawal from the facility the test device is held for 2 hours in the compressed state, cooled to room temperature, and the test body is withdrawn from the test device, and 10 minutes 30 seconds after withdrawal the height of the test body is measured to 0.1 mm accuracy, and a layer of back sprayed (sic) thermoplastic C. An Independent claim is also included for preparation of the laminate involving placing the material A in a tool mold (sic) with material A on both sides of the tool wall, using a cellular polyisocyanate/polyaddition elastomer (CPIE) (B) of residual pressure deformation (sic) of 25% in accordance with DIN 53572, and a 40x40x30 mm test body without a silicone coating as described above, with final measurement of the height of the test body to an accuracy of 0.1 mm.

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