中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

104 records (took 0.021 seconds)

    Microcellular urea-containing polyurethane elastomer
    43.
    发明专利
    Microcellular urea-containing polyurethane elastomer 未知

    公开(公告)号：AU1372597A

    公开(公告)日：1997-07-17

    申请号：AU1372597

    申请日：1996-12-16

    Applicant: BASF AG

    Inventor： KRECH RUDIGER ,  ROTERMUND UDO ,  BOLLMANN HEINZ ,  HEMPEL RENATE ,  SCHOLZ WOLFGANG ,  GENZ MANFRED

    IPC: C08J9/36 ,  C08G18/08 ,  C08G18/40 ,  C08G18/76 ,  C08G101/00

    Abstract: PCT No. PCT/EP96/05639 Sec. 371 Date Nov. 18, 1998 Sec. 102(e) Date Nov. 18, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/23534 PCT Pub. Date Jul. 3, 1997A microcellular PU elastomer having improved dynamic-mechanical properties and based on an isocyanate component consisting essentially of 4,4'-MDI and also further customary constituents has, after heating at from 100 to 120 DEG C. for from 8 to 24 hours, a melting range of from 130 DEG C. as the minimum lower limit to 230 DEG C. as a minimum upper limit, measured by differential scanning calorimetry (DSC) at a heating rate of 20 DEG C./min, and a urea content of from 14 to 18% by weight. A process is also provided for preparing such a microcellular PU elastomer having improved dynamic mechanical properties. The microcellular PU elastomers can be used for producing damping elements.

    ESPUMAS CONSTITUIDAS PREPONDERANTEMENTE POR CARBONO CON UNA ELEVADA SUPERFICIE INTERNA Y PROCEDIMIENTO PARA SU OBTENCION.
    44.
    发明专利
    ESPUMAS CONSTITUIDAS PREPONDERANTEMENTE POR CARBONO CON UNA ELEVADA SUPERFICIE INTERNA Y PROCEDIMIENTO PARA SU OBTENCION. 未知

    公开(公告)号：ES2277148T3

    公开(公告)日：2007-07-01

    申请号：ES03797284

    申请日：2003-09-08

    Applicant: BASF AG

    Inventor： ROTERMUND UDO ,  HEMPEL RENATE ,  HESSE MICHAEL ,  RUDLOFF JAN ,  DESSEIX MARYLINE

    IPC: C04B38/00 ,  H01G11/24 ,  H01G11/32 ,  H01G11/48

    Abstract: Procedimiento para la obtención de una espuma, constituida al menos por un 70 % en masa de carbono, mediante pirolisis de espumas de material sintético, caracterizado porque las espumas de material sintético, empleadas, contiene, al menos, un 30 % en masa de un material polímero con un contenido en nitrógeno por encima del 6 % en masa y tienen una porosidad comprendida entre el 35 % y el 99, 5 % así como una proporción de células abiertas mayor que el 1 %, que presentan productos inorgánicos incorporados y/o depositados sobre la superficie en la espuma de material sintético, elegidos del grupo formado por el cloruro de cinc, el carbonato de calcio, el polifosfato de amonio, el grafito expandido y los polvos metálicos y/o tratadas durante y/o después de la pirolisis con vapor de agua y/o con dióxido de carbono a temperaturas por encima de 400ºC.

    Ceramic foams, useful as a filter medium, catalyst support and reactor insert, are prepared by reaction of polyisocyanates with a polyetherol mixture and an inorganic solid followed by drying and baking
    46.
    发明专利
    Ceramic foams, useful as a filter medium, catalyst support and reactor insert, are prepared by reaction of polyisocyanates with a polyetherol mixture and an inorganic solid followed by drying and baking 未知

    公开(公告)号：DE10248307A1

    公开(公告)日：2004-04-29

    申请号：DE10248307

    申请日：2002-10-16

    Applicant: BASF AG

    Inventor： FALKE PETER ,  ROTERMUND UDO ,  HEMPEL RENATE ,  VIETH SIEGFRIED

    IPC: C04B38/06 ,  C08G18/48 ,  C08K3/22 ,  C08L75/04 ,  C08J9/16

    Abstract: Ceramic foams are prepared by reaction of organic and/or modified organic polyisocyanates with a polyetherol mixture comprising a mixture of bifunctional polyetherols and up to 60 wt.% of a suitable inorganic solid followed by drying and baking. Ceramic foams (I) are prepared by reaction of organic and/or modified organic polyisocyanates (A) with a polyetherol mixture (B) and optionally other hydrogen atom containing compounds (C) that are reactive with isocyanates in the presence of water and/or other propellants (D), catalysts (E) and processing aids and additiives (F) followed by drying and baking whereby the polyetherol mixture (B) comprises at least 60 wt.% of at least one bifunctional polyetherol (B1) having an OH number of 20-150 mgKOH/g based on propylene oxide and/or butylene oxide and ethylene oxide whereby the ethylene oxide content is greater than 40 wt.% (with respect to the total quantity of alkylene oxide) and up to 40 wt.% of at least one bifunctional polyetherol (B2) having an OH number of greater than 25 mgKOH/g based on propylene oxide and/or butylene oxide and up to 60 wt.% of a suitable inorganic solid (F1) (with respect to all components (B)-(F).

    47.
    发明专利
    未知

    公开(公告)号：DE10156132A1

    公开(公告)日：2003-05-28

    申请号：DE10156132

    申请日：2001-11-16

    Applicant: BASF AG

    Inventor： ROTERMUND UDO ,  HEMPEL RENATE ,  VOELKEL RUEDIGER ,  SCHLEGEL KARL ,  FALKE PETER

    IPC: C04B38/00 ,  C08J9/36 ,  C08J9/12 ,  C08G8/10 ,  C08G12/32 ,  C08G18/42

    Abstract: The invention concerns a foam consisting of at least 70 wt. % of carbon, having an average cell size more than 30 mu m, porosity between 35 % and 99.7 %, a percentage of open cells higher than 90 %, and comprising linking elements between the cells, which, viewed in cross-section, form a triangle with inward-curving sides. Inside the surface of the cross-section, the sum of the surfaces having a cavity constitutes less than 5 % of the total cross-sectional area of the linking elements. The invention also concerns the use of said foams consisting for the major part of carbon in electrical and electrochemical applications, in the form of filtering material, heat insulation material, support material, storage material and as starting material for other transformations. The invention further concerns a method for producing a foam consisting of at least 70 wt. % of carbon, by pyrolizing synthetic foams. Said method is characterized in that the synthetic foams used contain at least 30 wt. % of a polymer material having a nitrogen content higher than 6 wt. %, and having a porosity between 20 and 99 %, as well as a percentage of open cells higher than 1 %.

    Agent for surface modification of fillers for polyamide composition comprises selected functionalized silane compounds
    48.
    发明专利
    Agent for surface modification of fillers for polyamide composition comprises selected functionalized silane compounds 未知

    公开(公告)号：DE19961973A1

    公开(公告)日：2001-06-28

    申请号：DE19961973

    申请日：1999-12-22

    Applicant: BASF AG

    Inventor： GASSAN MICHAEL ,  GUETTES BERND ,  SANDER MICHAEL ,  KRAUS RUPERT ,  PLAUMANN HEINZ ,  ROTERMUND UDO ,  BIEDERMANN ANJA ,  SEITZ CHRISTIAN ,  REICHELT MICHAEL ,  HEMPEL RENATE

    IPC: C08G12/40 ,  C08G18/76

    Abstract: An agent for the surface modification of fillers for polyamide compositions comprises: (A) an amino-functional silane, a bis-aminosilane a tertiary aminosilane or an oligomer of these; (B) a mixture of an amino-functional silane, bis-aminosilane and/or tertiary aminosilane and an alkyl-, alkenyl- or polyether-functional silane and optionally an oligomer of these; or (C) a mixture of an alkyl-functional silane and an alkenyl-functional silane and optionally an oligomer of these. An agent for the surface modification of fillers for polyamide compositions comprises either: (A) an agent comprising: (i) an amino-functional silane of formula (Ia); (ii) a bis-aminosilane (Ib); (iii) a tertiary aminosilane (Ic); or an oligomer of (Ia)-(Ic) with a degree of oligomerization (DO) of 2-20; (B) a mixture of: (i) a component comprising (a) an amino-functional silane of formula (IIa), (b) a secondary aminosilane (IIb) and/or (c) a tertiary aminosilane (IIc); and (ii) a component comprising either (a) an alkyl-functional silane of formula (III), (b) an alkenyl-functional silane of formula (IV), (c) a polyether-functional silane of formula (V); and optionally (iii) an oligomer of (IIa)-(IIc) and (III)-(V) with a DO of 2-20; or (C) a mixture of: (i) an alkyl-functional silane of formula (IIIa); and (ii) an alkyl-functional silane of formula (IV); and optionally (iii) an oligomer of (IIIa) and (IV) with a DO of 2-20. RNH-(CH2)3-Si(Me)x(Z)3-x (Ia) Z = 1-3C alkoxy, OH or Cl; x = 0 or 1; and R = 1-20C alkyl, 5-12C cycloalkyl or 6-12C aryl. R-Si(Me)x(Z)3-x (IIa) Z = 1-3C alkoxy, OH or Cl; x = 0 or 1; R = H2N((CH2)2NH)y(CH2)3; and y = 0-2. R'-Si(Me)x(Z)3-x (IIIa) Z = 1-3C alkoxy, OH or Cl; x = 0-1; and R' = optionally fluorinated 1-16C alkyl or cycloalkyl. CH2=CH(CH2)n-Si(Me)x(Z)3-x (IV) Z = 1-3C alkoxy, OH or Cl; x = 0 or 1; and n = 0-20. R(OCH2CHR')nO(CH2)mSi (Me)x(Z)3-x (V) z = 1-3C alkoxy, OH or Cl; x = 0 or ; R = 1-4C alkyl; R' = H or Me; n = 5-20; and m = 2 or 3. Independent claims are also included for the following: (1) a filler surface-modified with the above agent; (2) an article comprising the surface-modified filler; (3) a filled polyamide composition produced using the surface-modified filler; and (4) an article based on the filled polyamide composition.

    МИКРОПОРИСТЫЙ, СОДЕРЖАЩИЙ КАРБАМИДНЫЕ ГРУППЫ ПОЛИУРЕТАНОВЫЙ ЭЛАСТОМЕР
    49.
    发明专利
    МИКРОПОРИСТЫЙ, СОДЕРЖАЩИЙ КАРБАМИДНЫЕ ГРУППЫ ПОЛИУРЕТАНОВЫЙ ЭЛАСТОМЕР 未知

    公开(公告)号：EA001373B1

    公开(公告)日：2001-02-26

    申请号：EA199800595

    申请日：1996-12-16

    Applicant: BASF AG

    Inventor： KRECH RUDIGER ,  ROTERMUND UDO ,  BOLLMANN HEINZ ,  HEMPEL RENATE ,  SCHOLZ WOLFGANG ,  GRNZ MANFRED

    IPC: C08G18/08 ,  C08G18/40 ,  C08G18/76 ,  C08G101/00 ,  C08J9/36

    Abstract: Объектомизобретенияявляетсямикропористыйполиуретановыйэластомерс улучшеннымидинамически-механическимисвойстваминаосновесостоящегопосуществуиздифенилметан-4,4'-диизоцианатаизоцианатногокомпонента, атакжедругихобычныхсоставныхчастей, которыйпослеотжигапритемпературахот 100 до 120°Св течениевремениотвосьмидодвадцатичетырехчасовимеетобластьплавленияот 130°Св качествеминимальногонижнегопределадо 230°Св качествеминимальноговерхнегопредела, определяемуюпометодудифференциальнойсканирующейкалориметрииприскоростинагрева 20°Св минуту, исодержаниекарбамидав которомсоставляетот 14 до 18 мас.%. Объектамиизобретения, далее, являютсяспособполучениятакогомикропористогополиуретановогоэластомерас улучшеннымидинамически-механическимисвойствами, атакжеприменениемикропористыхполиуретановыхэластомеровдляизготовлениядемпфирующихэлементов.

Patent Agency Ranking