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1.发明公开Unter Einsatz von Recycling-Polyolen hergestellte Polyurethan-Verbundkörper(Sandwichelemente), ein Verfahren zu deren Herstellung sowie deren Verwendung 失效下使用的回收多元醇的制备聚氨酯复合体（夹层板），它们的制备和它们的用途
公开(公告)号：EP0771644A3
公开(公告)日：1998-06-03
申请号：EP96116995
申请日：1996-10-23
Applicant: BAYER AG , BAYERISCHE MOTOREN WERKE AG
Inventor： RASSHOFER WERNER DR , LAMMECK ADOLF , GLASDER ANDREAS
CPC classification number: B32B27/065 , B32B5/18 , B32B27/40 , B32B2262/065 , B32B2266/0278 , B32B2305/022
Abstract: Beschrieben werden Verbundkörper (Sandwichelemente) mit einem Polyurethan-Kern und mindestens einer Deckschicht aus einem faserverstärkten Kunststoffmaterial, wobei der Verbundkörper
a) einen Polyurethan-Kern aus der chemischen Umsetzung von Polyisocyanaten mit durch chemische Spaltung von Polyurethan- und/oder Polyharnstoffabfällen gewonnenen Polyolverbindungen mit einer OH-Zahl im Bereich von 100 bis 500 mg KOH/g, einem Wassergehalt von 0 bis 5 Gew.-% und einer Viskosität von mehr als 2 000 mPa·s (20°C) und
b) mindestens eine Deckschicht aus mit Naturfasern verstärkten Kunststoffmaterial enthält.
Ebenfalls beschrieben wird die Herstellung dieser Verbundkörper sowie deren Verwendung im Fahrzeug-, Möbel-, Maschinen- oder Apparatebau. Bevorzugt werden diese Sandwichelemente im Fahrzeugbau, insbesondere als Formteile im Fahrzeuginnenraum, eingesetzt.-
公开(公告)号：ES2105457T3
公开(公告)日：1997-10-16
申请号：ES94115255
申请日：1994-09-28
Applicant: BAYER AG
Inventor： MAYER EDUARD DR , MUNZMAY THOMAS DR , NEFZGER HARTMUT DR , RASSHOFER WERNER DR
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公开(公告)号：DE59403371D1
公开(公告)日：1997-08-21
申请号：DE59403371
申请日：1994-09-28
Applicant: BAYER AG
Inventor： MAYER EDUARD DR , MUENZMAY THOMAS DR , NEFZGER HARTMUT DR , RASSHOFER WERNER DR
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公开(公告)号：DE69004317D1
公开(公告)日：1993-12-09
申请号：DE69004317
申请日：1990-03-30
Applicant: BAYER AG
Inventor： ROSTHAUSER JAMES W , MECKEL WALTER DR , RASSHOFER WERNER DR
Abstract: The present invention is directed to a process for the direct production of a pigmented thermoplastic polyurethane powder in finely divided form by a) reacting with agitation at an overall equivalent ratio of isocyanate groups to isocyanate reactive groups of about 0.5 to 1.1 (i) a surfactant-stabilized emulsion of fine droplets of a first reactant which has an average of about two isocyanate or isocyanate reactive groups in admixture with at least one pigment with (ii) a second reactant which contain an average of about two isocyanate or isocyanate reactive groups, in an inert organic liquid in which the first reactant, the pigment and the powder are substantially insoluble or immiscible to form particles of the powder which are protected from agglomeration by the surfactant, and b) separating the particles of the powder from the inert organic liquid. The present invention is also directed to the pigmented thermoplastic polyurethane powders obtained by this process.
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Patent Agency Ranking
公开(公告)号：DE4209057A1
公开(公告)日：1993-09-23
申请号：DE4209057
申请日：1992-03-20
Applicant: BAYER AG
Inventor： WAGNER JOACHIM DR , RASSHOFER WERNER DR , MUELLER HANNS PETER DR , SIRINYAN KIRKOR DR
Abstract: Prodn. of moulded articles from a mixt. of (a) crosslinked urethane and/or urea gp. contg. isocyanate polyaddition prod. with a density of 0.005-1.8 g/cm3 and opt. contg. a filler and/or a reinforcing agent; (b) 0.01-10,000 pts.wt. per 100 pts. of (a) of an opt. filler and/or reinforcing agent contg. thermoplastic polymer; and (c) 1-20 pts.wt. of a recycling additive selected from (c1) an amorphous polyolefin with a MW of 10000-150000 and an inhomogeneity of 1-6.5; (c2) a chemically modified amorphous polyolefin of MW 10000-100000 and an inhomogeneity of 1-6.5 and contg. 2.5-50 wt.% of C1 and 0.5-17.5 wt.% of gps. contg. N,O,S and/or Si; and (d) other additives. ADVANTAGE - Improved compatibility and mechanical properties.
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公开(公告)号：DE4026068A1
公开(公告)日：1992-02-20
申请号：DE4026068
申请日：1990-08-17
Applicant: BAYER AG
Inventor： SACHS HANS IMMO , KASPEREK PETER , LIMAN ULRICH DR , RASSHOFER WERNER DR , WAGNER JOACHIM DR
Abstract: The materials (I) are prepd. by pressing together at 80-250 deg C under 10-1000 bar. (A) polyisocyanate-polyaddn. prod. of density 40-2000 kg/cub. m, in comminuted form, opt. contg. reinforcing materials, and (B) 1-99% (all pts. wt.), on (A)+(B), lignocellulose-contg. material in comminuted form, using (C) 1-25%, on (A)+(B), aromatic polyisocyanate of NCO content of 5-32% and viscosity (at 23 deg C) 10-10,000 mPa.s, opt. together with (D) other auxiliaries, fillers, and reinforcing materials. (A), (B), and opt. (D) are used in admixt. and/or as layers. USE - Finished or semifinished articles, e.g., hollow articles for containers, supports for instrument panels, switching consoles, inner cladding for motor vehicle doors, cladding for steering wheel columns; flat motor vehicle chassis components, e.g., side panels, wings, bonnets for engine space or boot lids, rings for glass flasks (see DE GBM. 7 504 257); in flat form, for, e.g., writing supports, magnetic display boards, protective sheets; as small objects, e.g., keyboard elements, hard elastic sealing parts, sleeves, hollow grips, and small damping elements; stiffened or unstiffened profiles, e.g., cable channels; tongued and grooved floor and wall coverings.
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公开(公告)号：DE4019800A1
公开(公告)日：1992-01-02
申请号：DE4019800
申请日：1990-06-21
Applicant: BAYER AG
Inventor： WAGNER JOACHIM DR , RASSHOFER WERNER DR , ELSNER THOMAS DR
Abstract: A process for the production of mouldings or films in which combinations of A) polyisocyanate polyaddition products in comminuted form, having a density of from 0.1 to 1.2 g/cm , or combinations, in comminuted form, of foamed polyisocyanate polyaddition products of this type with film material, B) reinforcing agents in an amount of up to 80% by weight, based on the total weight of the system, and optionally, C) further assistants and additives, are subjected to thermoplastic shaping under conditions of elevated temperature and pressure with an irreversible increase in the density of the foamed polyisocyanate polyaddition product, and the mouldings or films obtained in this way.
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公开(公告)号：DE3680413D1
公开(公告)日：1991-08-29
申请号：DE3680413
申请日：1986-07-11
Applicant: BAYER AG
Inventor： RASSHOFER WERNER DR , PAUL REINER DR
Abstract: The present invention is directed to a process for the production of polyisocyanates containing urea and/or biuret groups by reacting organic polyisocyanates with a mixture of water, high molecular weight isocyanate reactive compounds and optionally low molecular weight isocyanate reactive compounds. The present invention is further directed to the products obtained by this process and their use for the production of polyisocyanate polyaddition productions, especially for the preparation of molded articles by the RIM process.
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公开(公告)号：AT53223T
公开(公告)日：1990-06-15
申请号：AT86111380
申请日：1986-08-18
Applicant: BAYER AG
Inventor： RASSHOFER WERNER DR
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