Patents by Inventor Peter Weyland
Peter Weyland has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7049001Abstract: Compounds with carbodiimide units and carboxyl or carboxylate groups (compounds V), derived from a) aliphatic or araliphatic C4 to C20 polyisocyanates (component a) b) hydroxy carboxylic acids or hydroxy carboxylic salts (component b) and c) if desired, further compounds, carrying groups able to react with isocyanate groups in an addition reaction (component c) d) if desired, other isocyanates (component d), the carbodiimide units being derived essentially exclusively from the isocyanate groups of component a).Type: GrantFiled: January 5, 2001Date of Patent: May 23, 2006Assignee: BASF AktiengesellschaftInventors: Karl Häberle, Ulrike Licht, Sabine Kielhorn-Bayer, Christian Lach, Bernd Meyer-Roscher, Robert Shane Porzio, Christelle Staller, Peter Weyland
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Publication number: 20040236011Abstract: The present invention relates to a process for preparing the polyurethane dispersion, the dispersions being obtainable byType: ApplicationFiled: June 29, 2004Publication date: November 25, 2004Inventors: Karl Haeberle, Klaus Dieter Hoerner, Bruno Hofer, Reinhard Treiber, Peter Weyland
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Patent number: 6730807Abstract: Compounds containing carbodiimide units and carboxyl or carboxylate groups (compounds V), derived from a) aliphatic or araliphatic C4 to C20 polyisocyanates (component a) b) amino carboxylic acids or amino carboxylic salts (component b) and c) if desired, further compounds which carry groups able to react with isocyanate groups in an addition reaction (component c) d) if desired, other isocyanates (component d), the carbodiimide units deriving essentially exclusively from the isocyanate groups of component (a).Type: GrantFiled: March 29, 2002Date of Patent: May 4, 2004Assignee: BASF AktiengesellschaftInventors: Karl Häberle, Reinhard Treiber, Christian Lach, Ulrike Licht, Bernd Meyer-Roscher, Peter Weyland
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Publication number: 20030109741Abstract: Described are complex mixtures of partial esters of polybasic organic acids and long-chain alkanols, alkoxyalkanols and diols, especially thick oils from the oxo process, their preparation and their use as inexpensive high-performance emulsifiers and especially as assistants in leather manufacture.Type: ApplicationFiled: September 16, 2002Publication date: June 12, 2003Inventors: Peter Weyland, Susanne Demharter, Peter Danisch, Gunter Oetter
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Publication number: 20030088030Abstract: Compounds with carbodiimide units and carboxyl or carboxylate groups (compounds V), derived fromType: ApplicationFiled: July 5, 2002Publication date: May 8, 2003Inventors: Karl Haberle, Ulrike Licht, Sabine Kielhorn-Bayer, Christian Lach, Bernd Meyer-Roscher, Robert Shane Porzio, Christelle Staller, Peter Weyland
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Patent number: 5905113Abstract: Aqueous latent-crosslinking polyurethane dispersions, comprisingI) a disperse phase (P.I) includingIa) polyurethanes (PUR.Ia) carrying not only groups which render the polyurethane dispersible in water but also groups with a C--C double bond which is activated by a carbonyl attached directly to it, orIb) a mixture ofa polyurethane (PUR.Ib) carrying groups which render the polyurethane dispersible in water but no groups with a C--C double bond which is activated by carbonyl attached directly to it, anda compound (V.I) different from the polyurethanes PUR.Ia and PUR.Ib, which carries groups with a C--C double bond which is activated by a carbonyl attached directly to it, andII) a compound havingon average at least 2 hydrogens present as amino function,a solubility in water of more than 1 g/l (25.degree. C.) anda number-average molecular weight (M.sub.n) of from 200 to 1,000,000 (compound II).Type: GrantFiled: May 14, 1997Date of Patent: May 18, 1999Assignee: BASF AktiengesellschaftInventors: Ulrike Licht, Nicolas Kokel, Karl Haberle, Maximilian Angel, Peter Weyland, Gunter Scherr
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Patent number: 5852104Abstract: Aqueous dispersions containing a polyurethane built up froma) diisocyanates having 4 to 30 carbon atoms,b) diols, of whichb.1) from 10 to 100 mol %, based on the total amount of the diols (b), have a molecular weight of from 500 to 5000 and are built up fromb1.1) (C.sub.4 - to C.sub.30 -alkyl)succinic acid and/or (C.sub.4 - to C.sub.30 -alkenyl)succinic acid,b1.2) from 0 to 60 mol %, based on component (b1.1), of a dicarboxylic acid which is different from component (b1.1), andb1.3) a diol having a molecular weight of from 60 to 500 g/mol,b.2) from 0 to 90 mol %, based on the total amount of the diols (b), have a molecular weight of from 60 to 500 g/mol, andb.Type: GrantFiled: January 27, 1997Date of Patent: December 22, 1998Assignee: BASF AktiengesellschaftInventors: Nicholas Kokel, Karl Haberle, Kuno Beutler, Jurgen Reichert, Peter Weyland, Gabriele Dralle-Voss, Knut Oppenlander, Michael Zirnstein, Gerlinde Tischer, Bernd Guettes, Ulrike Licht
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Patent number: 5587421Abstract: A mixture containsa) water-emulsifiable polyisocyanates andb) carbonic esters or lactones as organic solvents.Type: GrantFiled: August 18, 1995Date of Patent: December 24, 1996Assignee: BASF AktiengesellschaftInventors: Peter Weyland, Reinhard Treiber, Alwin Sturm, Horst Seibert, Hans Renz, Jurgen Reichert, Karl Haberle
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Patent number: 5401582Abstract: A finished leather comprising a leather to which has been applied a fat liquoring and/or water repellant agent, and a particularly formulated polyurethane adhesive improving bottoming coat composition applied thereto.Type: GrantFiled: May 13, 1994Date of Patent: March 28, 1995Assignee: BASF AktiengesellschaftInventors: Peter Weyland, Karl Haeberle, Reinhard Treiber
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Patent number: 5135963Abstract: Aqueous dispersions of polyurethanes which are crosslinkable by the action of high energy radiation contain (a) a polyisocyanate, (b) a polyol having a molecular weight of from 400 to 6,000 g/mol, (c) if required, a polyol having a molecular weight of from 62 to 399 g/mol, (d) if required, a polyamine having two or more amino groups which are reactive to isocyanate, (e) if required, an aminoalcohol having one or more amino groups which are reactive to isocyanate, (f) a compound containing ionic groups or groups which can be converted into ionic groups and one or more hydroxyl or amino groups which are reactive to isocyanate (g) if required, a monofunctional polyetheral and (h) a compound having one or more ethylenically unsaturated groups and one or more hydroxyl groups. The compound having an ethylenically unsaturated group (h) is used in amounts corresponding to 0.02-0.Type: GrantFiled: April 11, 1990Date of Patent: August 4, 1992Assignee: BASF AktiengesellschaftInventors: Karl Haeberle, Peter Weyland, Guenter Eckert, Hans Renz
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Patent number: 4861826Abstract: Aqueous dispersions of polyurethanes consisting of(a) organic polyisocyanates,(b) polyesterpolyols having a molecular weight of from 500 to 5,000,(c) organic hydroxy compounds having a molecular weight of from 62 to 400 and two terminal groups which are reactive to isocyanate groups, as chain extenders, and(d) compounds containing ionic groups or groups which can be converted to ionic groups and one or more isocyanate groups or a hydroxyl or amino group which is reactive to isocyanate groups,which contain from 0.05 to 2 meq of ionic groups incorporated into the polyurethane via (d) per g of polyurethane are particularly suitable for adhesives when the chain extenders (c) are incorporated in an amount of from 1.5 to 8 moles per mole of polyols, and a minor amount of (a) can be replaced with monoisocyanates, and a minor amount of (b) with polyetherpolyols.Type: GrantFiled: December 15, 1987Date of Patent: August 29, 1989Assignee: BASF AktiengesellschaftInventors: Rainer Hummerich, Michael Kerber, Lothar Maempel, Peter Weyland
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Patent number: 4778830Abstract: Disclosed are polyester polyols liquid at 25.degree. C., having an average functionality of from 2 to 3, a hydroxyl number of from 25 to 400, an acid number smaller than 10 and a viscosity at 25.degree. C. of from 200 to 10,000 mPas, which contain in bonded form units having at least one of the structures--O--CH.sub.2 --CH(CH.sub.3)--CH.sub.2 --CH.sub.2 --CH.sub.2 --O--,--O--CH.sub.2 --CH(C.sub.2 H.sub.5)--CH.sub.2 --CH.sub.2 --O--,--OC--CH(CH.sub.3)--CH.sub.2 --CH.sub.2 --CO--and--OC--CH(C.sub.2 H.sub.5)--CH.sub.2 --CO--which are prepared by the polycondensation or transesterification of 2-methyl-1,5-pentanediol, 2-ethyl-1,4-butanediol, 2-methyl-glutaric acid and/or 2-ethyl succinic acid or their derivatives, optionally while using other organic polycarboxylic acids and multivalent aliphatic alcohols and are useful for preparing non-cellular or cellular polyurethane plastics or polyurethane-polyurea plastics.Type: GrantFiled: December 1, 1987Date of Patent: October 18, 1988Assignee: BASF AktiengesellschaftInventors: Joachim Streu, Matthias Marx, Peter Weyland, Dietrich Scherzer, Wolfgang Straehle
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Patent number: 4374935Abstract: The invention concerns a process for the preparation of flexible polyurethane foams having good hydrolytic stability, improved damping, with equal or higher levels of other physical properties and with a high absorption capacity. The foams are prepared by reacting organic polyisocyanates and mixtures of(a) liquid polyester polyols, which are produced by the polycondensation of organic dicarboxcylic acid and a polyol mixture which contains 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, and at least one triol, and(b) di- to tetra-functional polyether polyols having molecular weights of 1500 to 6000in the presence of catalysts and blowing agents as well as optionally chain extenders, auxiliaries, and additives.Type: GrantFiled: January 4, 1982Date of Patent: February 22, 1983Assignee: BASF AktiengesellschaftInventors: Walter Decker, Ernst Schoen, Herbert Grabhoefer, Peter Weyland
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Patent number: 4362825Abstract: The invention concerns a process for the preparation of flexible polyurethane foams by reacting organic polyisocyanates, liquid polyester polyols having hydroxyl numbers of 40 to 80 and molecular weights of 1500 to 5000, which are produced by the polycondensation of organic dicarboxylic acids with either polyol mixture A, based on the overall polyol weight consisting of:5 to 50 percent by weight of 1,4-butanediol,20 to 60 percent by weight of 1,5-pentanediol,8 to 35 percent by weight of 1,6-hexanediol,2 to 15 percent by weight of at least one triol, and0 to 65 percent by weight of diethylene glycol,or polyol mixture B, based on the overall polyol weight consisting of:10 to 50 percent by weight of 1,4-butanediol,15 to 45 percent by weight of 1,6-hexanediol,15 to 65 percent by weight of diethylene glycol, and2 to 15 percent by weight of at least one triol,in the presence of catalysts and blowing agents as well as optionally chain extenders, auxiliaries and additives.Type: GrantFiled: December 24, 1981Date of Patent: December 7, 1982Assignee: BASF AktiengesellschaftInventors: Herbert Grabhoefer, Peter Weyland
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Patent number: 4302551Abstract: This invention relates to a process for preparing cellular polymers having urethane groups, isocyanurate groups, or both. The cellular polymers are prepared by reacting an organic polyisocyanate with certain polymer dispersions in the presence of a blowing agent.The polymer dispersions comprise(a) as a continuous phase, a polyol having a functionality of 2 to 8 and a hydroxyl number of 150 to 700; and(b) as a dispersed phase, an organic compound having(a) at least one Zerewitinoff active hydrogen atom,(b) a melting point of 30.degree. C. to 260.degree. C., and(c) a molecular weight of 178 to 100,000.Type: GrantFiled: December 22, 1980Date of Patent: November 24, 1981Assignee: BASF AktiengesellschaftInventors: Peter Horn, Anton Hesse, Peter Weyland, Wolfgang Straehle, Matthias Marx
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Patent number: 4258140Abstract: A process for the manufacture of dimensionally stable polyurethane foams by releasing, and curing by interaction with the atmosphere, a mixture, which is under pressure, of prepolymers, containing isocyanate groups, and blowing agents, with or without assistants and additives, wherein the prepolymers, containing isocyanate groups, are obtained by reaction of organic polyisocyanates with difunctional to octafunctional polyester-polyols and/or polyether-polyols, containing chemically bonded tertiary amino groups in the polymer chain, or, preferably, with mixtures of such polyester-polyols and/or polyether-polyols and nitrogen-free polyester-polyols and/or polyether-polyols.Type: GrantFiled: March 28, 1979Date of Patent: March 24, 1981Assignee: BASF AktiengesellschaftInventors: Heinrich Horacek, Robert Gehm, Otto Volkert, Sarbananda Chakrabarti, Mathias Pauls, Peter Weyland
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Patent number: 4237240Abstract: The invention concerns a process for the manufacture of flexible polyurethane foams by reaction of a mixture consisting of diphenylmethane diisocyanates and polyphenylene polymethylene polyisocyanates having a functionality greater than 2 containing 55 to 85 percent by weight diphenylmethane diisocyanate based on the total weight of the isocyanate mixture with polyester polyols or mixtures of polyester polyols and polyether polyols having a polyester polyol content of more than 60 percent by weight based on the weight of the polyol mixture, and optionally chain extenders, auxiliaries, and additives, in the presence of catalysts and, in particular, water as a blowing agent. The special selection of starting compounds results in the production of flexible polyurethane foams having a high resistance to hydrolysis, high load-bearing capacity, and high energy absorption upon impact.Type: GrantFiled: April 9, 1979Date of Patent: December 2, 1980Assignee: BASF AktiengesellschaftInventors: Wolfgang Jarre, Peter Weyland, Gerhard Mueller
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Patent number: 4035313Abstract: Self-extinguishing urethane group containing polyisocyanurate foams are prepared by reacting a polyisocyanate with a polyesterol obtained by condensing an aliphatic dicarboxylic acid with a mixture of an aliphatic diol and N,N'-bis-(ethanol-2)-diaminooctachlorodiphenyl.Type: GrantFiled: August 4, 1975Date of Patent: July 12, 1977Assignee: BASF AktiengesellschaftInventors: Georg Falkenstein, Alfred Guthmann, John Hutchison, Peter Weyland, Gerd Blinne