Patents by Inventor Achim Feldermann
Achim Feldermann 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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Publication number: 20120165442Abstract: Polymer compositions containing A) at least one compound selected from the group consisting of polycarbonate, polyester and polyester carbonate, B) optionally one or more optionally rubber-modified vinyl (co)polymers, C) at least one compound selected from the group consisting of polyether amides, polyester amides and polyether ester amides, D) at least one Brönstedt-acidic compound selected from the group consisting of organic fruit acids, inorganic acidic phosphorus compounds and compounds of formula IV wherein R9 and R10 independently of one another denote C1- to C9-alkyl, optionally substituted C5- to C6-cycloalkyl, C6- to C10-aryl or C7- to C12-aralkyl, and Y denotes S or CZ1Z2, wherein Z1 and Z2 independently of one another represent H, C1- to C6-alkyl, cyclohexenyl or cyclohexyl, and E) optionally further additives have permanent antistatic behaviour and have improved heat distortion resistance, low-temperature strength, processing stability, stress cracking resistance and, in particular, hType: ApplicationFiled: December 20, 2011Publication date: June 28, 2012Applicant: BAYER MATERIALSCIENCE AGInventors: Achim FELDERMANN, Andreas SEIDEL
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Patent number: 8178603Abstract: The present disclosure relates to an impact-modified polycarbonate composition which comprise a first graft polymer containing silicone/acrylate composite rubber as the graft base, wherein the content of silicone rubber is 65-95 wt. % (based on the graft base), a second graft polymer containing a diene rubber, and phosphorus-containing flameproofing agent, the use of the polycarbonate compositions for the production of shaped articles and the shaped articles themselves. The compositions and molding compositions according to the disclosure have an optimum combination of good flameproofing at thin wall thicknesses, good resistance to chemicals and hydrolysis and low melt viscosity.Type: GrantFiled: December 18, 2009Date of Patent: May 15, 2012Assignee: Bayer MaterialScience AGInventors: Thomas Eckel, Vera Taschner, Achim Feldermann, Eckhard Wenz
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Publication number: 20120074617Abstract: Battery box comprising compositions containing A) 70.0 to 90.0 parts by weight of linear and/or branched aromatic polycarbonate and/or aromatic polyester carbonate, B) 6.0 to 15.0 parts by weight of at least one graft polymer, C) 2.0 to 15.0 parts by weight of one or more phosphorus compounds, D) 0 to 3.0 parts by weight of antidripping agents, E) 0 to 3.0 parts by weight of thermoplastic vinyl (co)polymer (E.1) and/or polyalkylene terephthalate (E.2), and F) 0 to 20.0 parts by weight of further additives, wherein the compositions are optionally free from rubber-free polyalkyl(alkyl)acrylate.Type: ApplicationFiled: September 22, 2011Publication date: March 29, 2012Applicant: BAYER MATERIALSCIENCE AGInventors: Thomas ECKEL, Ulrich GROSSER, Claus RÜDIGER, Achim FELDERMANN, Dieter WITTMANN
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Publication number: 20120074036Abstract: The present invention relates to battery boxes comprising flame-retardant compositions comprising A) linear and/or branched aromatic polycarbonate and/or aromatic polyester carbonate, B) at least one graft polymer, C) one or more phosphorus compounds, D) optionally one or more antidripping agents, optionally E) thermoplastic vinyl (co)polymer (E.1) and/or polyalkylene terephthalate (E.2), and F) optionally one or more further additives, wherein the composition is preferably free from rubber-free polyalkyl(alkyl)acrylate.Type: ApplicationFiled: September 22, 2011Publication date: March 29, 2012Applicant: BAYER MATERIALSCIENCE AGInventors: Thomas ECKEL, Ulrich GROSSER, Claus RÜDIGER, Achim FELDERMANN
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Publication number: 20120053271Abstract: The present invention relates to impact-modified polyester/polycarbonate compositions containing: A) 41 to 80 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of aromatic polycarbonate, B) 5 to 40 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of polyester with a content of isophthalic acid building blocks, C) 1 to 15 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of rubber-modified graft polymer, D) 0 to 25 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of a flame retardant, E) 0 to 20 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D=100, of vinyl (co)polymer, F) 0 to 50 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D=100, of additives, wherein all the stated parts by weights in the present application are normalised such thatType: ApplicationFiled: August 22, 2011Publication date: March 1, 2012Applicant: BAYER MATERIALSCIENCE AGInventors: Achim FELDERMANN, Eckhard WENZ
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Publication number: 20110251316Abstract: The present invention relates to impact-modified polylactic acid/polycarbonate compositions, containing A) 48 to 90 parts by weight, based in each case on the sum of the parts by weight of components A+B+C+D, of aromatic polycarbonate, B) 1 to 40 parts by weight, based in each case on the sum of the parts by weight of components A+B+C+D, of polylactic acid, C) 0.5 to 15 parts by weight, based in each case on the sum of the parts by weight of components A+B+C+D, of graft polymer, D) 2 to 25 parts by weight, based in each case on the sum of the parts by weight of components A+B+C+D, of a salt of a phosphinic acid and optionally additional components such as vinyl polymers and additives, which are distinguished by an optimum combination of high heat resistance, good flame retardance and excellent mechanical properties, to the use of the polycarbonate compositions for the production of mouldings and the mouldings themselves.Type: ApplicationFiled: April 6, 2011Publication date: October 13, 2011Applicant: BAYER MATERIALSCIENCE AGInventors: Achim FELDERMANN, Dieter WITTMANN
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Publication number: 20110152418Abstract: The present invention relates to scratch-resistant, impact-resistant polycarbonate (PC) compositions and moulding compositions which have good mechanical properties as well as high resistance to chemicals, to a process for their preparation, and to their use in the production of moulded articles, in particular of casings for flat screen devices.Type: ApplicationFiled: December 16, 2010Publication date: June 23, 2011Applicant: BAYER MATERIALSCIENCE AGInventors: Thomas ECKEL, Vera Taschner, Achim Feldermann, Burkhard Thuermer
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Publication number: 20110152416Abstract: The present invention relates to flameproofed, impact-modified, scratch-resistant polycarbonate (PC) compositions and moulding compositions with surface-modified, calcined kaolin as filler, which have good mechanical properties, good flowability and high chemical resistance. Furthermore, the present application relates to the use of the compositions for the production of mouldings.Type: ApplicationFiled: December 16, 2010Publication date: June 23, 2011Applicant: BAYER MATERIAL SCIENCE AGInventors: Thomas Eckel, Vera Taschner, Achim Feldermann, Burkhard Thuermer, Dieter Wittmann
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Publication number: 20110152417Abstract: The present invention relates to scratch-resistant, impact-resistant polycarbonate (PC) compositions and moulding compositions which have good mechanical properties and a high resistance to chemicals coupled with good flameproofing properties, and show improved flow properties during processing. The present invention furthermore relates to a process for the preparation of the compositions and their use for the production of shaped articles, in particular housings of flat screen apparatuses.Type: ApplicationFiled: December 16, 2010Publication date: June 23, 2011Applicant: BAYER MATERIALSCIENCE AGInventors: Thomas ECKEL, Vera Taschner, Achim Feldermann, Burkhard Thuermer
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Publication number: 20110003918Abstract: The present disclosure relates to an impact-modified polycarbonate composition which comprise a first graft polymer containing silicone/acrylate composite rubber as the graft base, wherein the content of silicone rubber is 65-95 wt.% (based on the graft base), a second graft polymer containing a diene rubber, and phosphorus-containing flameproofing agent, the use of the polycarbonate compositions for the production of shaped articles and the shaped articles themselves. The compositions and moulding compositions according to the disclosure have an optimum combination of good flameproofing at thin wall thicknesses, good resistance to chemicals and hydrolysis and low melt viscosity.Type: ApplicationFiled: December 18, 2009Publication date: January 6, 2011Applicant: BAYER MATERIAL SCIENCE AGInventors: Thomas Eckel, Vera Taschner, Achim Feldermann, Eckhard Wenz
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Patent number: 7834069Abstract: A thermoplastic molding composition that features good mechanical properties as well as processability is disclosed. The composition that contains aromatic polycarbonate and/or aromatic polyester carbonate, rubber-modified graft polymer and a plurality of hollow ceramic beads is suitable for making molded articles characterized by good ESC behavior and flammability rating.Type: GrantFiled: November 16, 2007Date of Patent: November 16, 2010Assignee: Bayer MaterialScience AGInventors: Thomas Eckel, Achim Feldermann, Burkhard Thuermer, Vera Buchholz
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Publication number: 20100249290Abstract: The present invention relates to flame-protected impact-modified polycarbonate compositions, wherein the compositions are free of rubber-free polyalkyl (alkyl)acrylate. The present invention further relates to the use of the polycarbonate compositions in the production of moulded bodies, and to the moulded bodies themselves.Type: ApplicationFiled: March 23, 2010Publication date: September 30, 2010Applicant: BAYER MATERIAL SCIENCE AGInventors: Achim FELDERMANN, Thomas Eckel, Andreas Seidel, Dieter Wittmann
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Publication number: 20100160534Abstract: Impact-modified polycarbonate compositions are disclosed that comprise a first graft polymer based on silicone-acrylate composite rubber as graft base, wherein the amount of silicone rubber is from 65 to 95 wt. % (based on the graft base), and a second graft polymer containing free copolymer, that is to say copolymer that is not chemically bonded to the rubber, and having a weight-average molecular weight of from 60,000 to 150,000 g/mol. The use of the polycarbonate compositions in the production of moulded articles, and to the moulded articles themselves are also disclosed. The compositions and moulding compositions have an optimum combination of good elongation at tear, good hydrolytic stability and low melt viscosity.Type: ApplicationFiled: December 17, 2009Publication date: June 24, 2010Applicant: BAYER MATERIALSCIENCE AGInventors: Achim FELDERMANN, Eckhard Wenz, Andreas Seidel, Evgueni Avtomotov
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Publication number: 20100160508Abstract: The present disclosure relates to impact-modified polycarbonate compositions which comprise a graft polymer containing silicone/acrylate composite rubber as the graft base, wherein the content of silicone rubber is 65-95 wt. % (based on the graft base), talc having a d98 value (also called “top cut”) of less than 20 ?m and phosphorus-containing flame retardant, the use of the polycarbonate compositions for the production of shaped articles and the shaped articles themselves. The compositions and moulding compositions according to the disclosure have an optimum combination of good flameproofing, good resistance to chemicals and hydrolysis and good mechanical properties (i.e. in particular a high E modulus and high notched impact strength aK).Type: ApplicationFiled: December 18, 2009Publication date: June 24, 2010Applicant: BAYER MATERIALSCIENCE AGInventors: Vera TASCHNER, Thomas Eckel, Achim Feldermann, Eckhard Wenz, Dieter Wittmann
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Publication number: 20090312482Abstract: The present invention relates to non-aging, impact-modified polycarbonate compositions and moulding compositions comprising: A) from 60 to 86 parts by weight (based on the sum of components A+B+C) of aromatic polycarbonate and/or aromatic polyester carbonate, B) from 4 to 12 parts by weight (based on the sum of components A+B+C) of graft polymer comprising: B.1 from 10 to 50 wt. % (based on the graft polymer B) of a shell of at least one vinyl monomer, and B.2 from 90 to 50 wt. % (based on the graft polymer B) of a graft base of silicone-acrylate composite rubber, C) from 10 to 30 parts by weight (based on the sum of components A+B+C) of a polymer or copolymer based on vinyl monomer, and D) from 0 to 20 parts by weight of polymer additives. Components B and C are present in a ratio of the parts by weight of B:C in the range from 1:1.3 to 1:3.5.Type: ApplicationFiled: June 15, 2009Publication date: December 17, 2009Applicant: BAYER MATERIALSCIENCE AGInventors: Achim FELDERMANN, Andreas SEIDEL, Eckhard WENZ
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Publication number: 20090292059Abstract: The present invention relates to a polycarbonate composition comprising polyalkyl(alkyl)acrylate having a specific molecular weight and an impact modifier, as well as to moulded bodies obtainable from these compositions. Compositions according to the present invention exhibit superior properties, in particular with respect of low-temperature strength and melt flowability.Type: ApplicationFiled: May 18, 2009Publication date: November 26, 2009Applicant: Bayer MaterialScience AGInventors: Andreas SEIDEL, Evgueni Avtomonov, Dieter Wittmann, Achim Feldermann
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Publication number: 20090118394Abstract: The present invention relates to a process for the production of impact-modified filled polycarbonate compositions and molding compositions. A process of the present invention involves: (i) mixing the CNT (component C) with rubber-containing vinyl copolymer (component B) and/or rubber-free vinyl copolymer (component D) on a twin screw extruder, to obtain a CNT masterbatch, (ii) mixing the CNT masterbatch with polycarbonate (component A) and optionally with Component B and/or Component D and optionally with an additive on a twin screw extruder. A polycarbonate composition prepared according to the present invention does not experience degradation of the molecular weight of the polycarbonate during compounding a compared to processes known in the art.Type: ApplicationFiled: August 27, 2008Publication date: May 7, 2009Applicant: Bayer MaterialScience AGInventors: Achim FELDERMANN, Andreas SEIDEL, Michael BIERDEL, Reinder RUDOLF
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Publication number: 20080176988Abstract: The present invention relates to filled, impact-modified polycarbonate compositions containing A) aromatic polycarbonate and/or aromatic polyester carbonate, B) a first graft polymer of B.1 from 0.1 to 30 wt. % of at least one vinyl monomer on B.2 from 99.9 to 70 wt. % of one or more graft bases having glass transition temperatures <10° C., the graft base consisting of at least 50 wt. % of a silicone rubber, C) a second graft polymer, which is different from component B, of C.1 from 5 to 95 wt. % of at least one vinyl monomer on C.2 from 95 to 5 wt. % of one or more graft bases having glass transition temperatures <10° C., the graft base consisting of at least 50 wt.Type: ApplicationFiled: January 17, 2008Publication date: July 24, 2008Inventors: Andreas Seidel, Achim Feldermann
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Publication number: 20080132618Abstract: A thermoplastic molding composition that features good mechanical properties as well as processability is disclosed. The composition that contains aromatic polycarbonate and/or aromatic polyester carbonate, rubber-modified graft polymer and a plurality of hollow ceramic beads is suitable for making molded articles characterized by good ESC behavior and flammability rating.Type: ApplicationFiled: November 16, 2007Publication date: June 5, 2008Inventors: Thomas Eckel, Achim Feldermann, Burkhard Thuermer, Vera Buchholz
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Publication number: 20080132617Abstract: A thermoplastic molding composition comprising aromatic polycarbonate and/or aromatic polyester carbonate, a rubber-modified graft polymer and a plurality of hollow glass beads is disclosed. The composition is distinguished by its improved flowability, high stiffness and small processing shrinkage, as well as unchanged high scratch resistance. The composition is suitable for producing molded articles having desirable properties.Type: ApplicationFiled: November 16, 2007Publication date: June 5, 2008Inventors: Thomas Eckel, Achim Feldermann, Andreas Seidel, Vera Buchholz, Bernd Keller