Patents by Inventor Holger RUCKDAESCHEL
Holger RUCKDAESCHEL 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: 8636929Abstract: Process for the production of nanoporous foamed active substance-containing preparations, wherein the active substance is present embedded in a pharmaceutically acceptable polymer, wherein, in stage a) loading of a polymeric molding composition or a polymer melt with a propellant is effected at a pressure and at a temperature at which the propellant is in the supercritical state, in stage b) heating of the laden polymer molding compound or melt is carried out under pressure at a temperature which lies in the range from ?40 to +60° C., preferably ?20 to +55° C., and especially preferably 0 to +50° C. around the glass transition temperature of the unladen (prior to loading) polymeric molding compound and in stage c) a depressurization of the polymeric molding compound or melt laden in stage a) and heated under pressure in stage b) is effected out with a depressurization rate in the range from 15,000 to 200,000 MPa/sec.Type: GrantFiled: May 20, 2011Date of Patent: January 28, 2014Assignee: Basf SEInventors: Jan Kurt Walter Sandler, Ingo Bellin, Dejan Djuric, Karl Kolter, Holger Ruckdäschel
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Publication number: 20130059933Abstract: A process for producing an expandable pelletized polymeric material which comprises: a) providing a polymer component, consisting of a styrene polymer component having a glass transition temperature of ?130° C., formed from and one or more thermoplastic polymers selected from the group consisting of aromatic polyethers; polyolefins; polyacrylates; polycarbonates; polyesters; polyamides; polyether sulfones; polyether ketones and polyether sulfides, (b) heating the polymer component to form a polymer melt, (c) introducing a blowing agent component into the polymer melt to form a foamable melt, (d) homogenizing the mixture, (f) extruding the blowing agent-containing polymer melt through a die plate, (g) pelletizing the blowing agent-containing melt in a liquid-filled chamber to form a pelletized material.Type: ApplicationFiled: August 30, 2012Publication date: March 7, 2013Applicant: BASF SEInventors: Holger Ruckdäschel, Alexandre Terrenoire, Jan Kurt Walter Sandler, Klaus Hahn, Ingo Bellin, Georg Grässel, Martin Weber
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Publication number: 20120283345Abstract: The invention is directed to extruded foam based on thermoplastic polymers. The foam contains at least one styrene copolymer which contains copolymerized maleic anhydride units or copolymerized maleimide units, and optionally styrene-acrylonitrile copolymers (SAN), and thermoplastic polymers and at least one halogen-containing polymer as flame retardant, and at least one flame retardant synergist selected from antimony trioxide and dicumyl. The invention also relates to a process for producing the foam with introducing carbon dioxide as blowing agent, and acetone as coblowing agent; into the polymer melt in order to form a foamable melt, and extruding the foamable melt into a region of relatively low pressure with foaming to give the extruded foam. The invention also relates to the use of said foam as insulation material and as structural foam.Type: ApplicationFiled: May 4, 2012Publication date: November 8, 2012Applicant: BASF SEInventors: Holger Ruckdäschel, Ingo Bellin, Christian Däschlein, Klaus Hahn, Peter Merkel, Juan-Manuel Igea-Ruiz, Herbert Schall, Maria-Kristin Sommer, Tobias Höld, Christoph Hahn, Elmar Boy
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Publication number: 20120252914Abstract: Flame-retardant polymer foams which comprise, as flame retardant, at least one halogenated polymer, for example brominated polystyrene or styrene-butadiene block copolymer having bromine content in the range from 40 to 80% by weight, or tetrabromobisphenol A compounds (TBBPA), processes for producing these, and also flame-retardant expandable styrene polymers.Type: ApplicationFiled: December 13, 2010Publication date: October 4, 2012Applicant: BASF SEInventors: Klaus Hahn, Olaf Kriha, Ingo Bellin, Frank Braun, Patrick Spies, Jan Kurt Walter Sandler, Geert Janssens, Jürgen Fischer, Christoph Fleckenstein, Hartmut Denecke, Sabine Fuchs, Peter Merkel, Manfred Pawlowski, Holger Ruckdäschel, Klemens Massonne
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Publication number: 20120164425Abstract: A thermoplastic extruded foam sheet having a thickness in the range from 15 mm to 200 mm and cells having an average cell size in the range from 20 to 2000 ?m, wherein the cell membranes have a fibrous structure with fiber diameters below 1500 nm is useful for example as insulating material, especially in the building construction industry.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Applicant: BASF SEInventors: Holger Ruckdäschel, Jens Aßmann, Carsten Schips, Klaus Hahn, Georg Gräßel, Jürgen Lambert, Christof Zylla, Peter Merkel, Geert Janssens
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Publication number: 20120161061Abstract: Closed-cell extruded foam extruded foam with density in the range from 20 to 150 g/l and with a cell number in the range from 1 to 30 cells per mm is obtainable via (a) heating of a polymer component P, formed from P1) from 80 to 100% by weight (based on P) of one or more styrene-acrylonitrile copolymers (SAN), comprising a1) from 18 to 40% by weight (based on SAN) of copolymerized acrylonitrile, a2) from 60 to 82% by weight (based on SAN) of copolymerized styrene, and a3) from 0 to 22% by weight (based on SAN) of at least one copolymerized monomer from the group consisting of alkyl(meth)acrylates, (meth)acrylic acid, maleic anhydride and maleimides, P2) from 0 to 20% by weight (based on P) of one or more thermoplastic polymers from the group consisting of styrene copolymers, polyolefins, polyacrylates, polycarbonates (PC), polyesters, polyamides, polyether sulfones (PES), polyether ketones (PEK), and polyether sulfides, to form a polymer melt, (b) introduction of from 1 to 12% by weight (based on P) ofType: ApplicationFiled: September 6, 2010Publication date: June 28, 2012Applicant: BASF SEInventors: Klaus Hahn, Holger Ruckdäschel, Ingo Bellin, Peter Merkel, Markus Hartenstein
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Publication number: 20120121905Abstract: A process for producing expandable, thermoplastic polymer beads comprising cavities via extrusion of a polymer melt comprising blowing agent through a die plate and pelletization in a chamber comprising liquid under a pressure in the range from 1.5 to 15 bar, which comprises using a polymer melt comprising blowing agent, where the melt comprises from 0.1 to 5% by weight of a nucleating agent D), from 1 to 10% by weight of a blowing agent E) which in essence remains within the polymer beads, from 0.01 to 5% by weight of a co-blowing agent F) forming the cavities, based in each case on the polymer melt comprising blowing agent, and also the expandable thermoplastic polymer bead material which can be obtained by the process, comprising cavities with an average diameter in the range from 0.1 to 50 ?m.Type: ApplicationFiled: November 8, 2011Publication date: May 17, 2012Applicant: BASF SEInventors: Holger Ruckdäschel, Carsten Schips, Klaus Hahn, Jens Aßmann, Maximilian Hofmann
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Publication number: 20120119402Abstract: The present invention relates to a composite component comprising an unfoamed polymer phase and a foamed phase, and to a process for producing the same.Type: ApplicationFiled: November 9, 2011Publication date: May 17, 2012Applicant: BASF SEInventors: Philippe DESBOIS, Olaf Kriha, Bangaru Sampath, Holger Ruckdäschel, Dietrich Scherzer, Freddy Gruber, Klaus Hahn
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Publication number: 20120046374Abstract: The present invention relates to an extruded foam based on at least one polymer selected from polysulfone or polyether sulfone, polystyrene, or a copolymer produced from styrene, where the extruded foam comprises at least one mineral filler with a particle sizes ?10 ?m, and comprises at least one nucleating agent based on a wax or on an oligomer containing epoxy groups.Type: ApplicationFiled: August 17, 2011Publication date: February 23, 2012Applicant: BASF SEInventors: Dietrich Scherzer, Klaus Hahn, Maximilian Hofmann, Jan Kurt Walter Sandler, Holger Ruckdäschel
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Publication number: 20120041086Abstract: An expandable pelletized material comprising A) a polymer matrix composed of A1) at least 55% by weight of polyester (based on the entirety of components A1) and A2)) with a total enthalpy of fusion of up to 60 J/g, optionally of one or more melting points in the range from 100 to 300° C. and of one or more glass transition temperatures in the range from 0 to 250° C., and A2) from 0 to 45% by weight (based on the entirety of components A1) and A2)) of one or more thermoplastic polymers different from component A1); B) a physical blowing agent component, and C) optionally further additives is suitable for producing moldable foams for use in the automobile industry, airline industry, construction industry, packaging industry, sports and leisure industry, in transport, in engineering, in lightweight construction, and/or in composite construction.Type: ApplicationFiled: August 15, 2011Publication date: February 16, 2012Applicant: BASF SEInventors: Bangaru Dharmapuri Sriramulu Sampath, Olaf Kriha, Holger Ruckdäschel, Philippe Desbois, Freddy Gruber, Klaus Hahn
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Publication number: 20110316198Abstract: The invention relates to elastic expanded polymer foams and also a process for producing expanded polymer foams by sintering a mixture comprising foam particles P1 and P2 composed of different thermoplastic polymers or polymer blends, wherein the foam particles P1 are obtained by prefoaming expandable, thermoplastic polymer particles comprising A) from 45 to 97.9 percent by weight of a styrene polymer, B1) from 1 to 45 percent by weight of a polyolefin having a melting point in the range from 105 to 140° C., B2) from 0 to 25 percent by weight of a polyolefin having a melting point below 105° C., C1) from 0.1 to 25 percent by weight of a styrene-butadiene or styrene-isoprene block copolymer, C2) from 0.0 to 10 percent by weight of a styrene-ethylene-butylene block copolymer, D) from 1 to 15 percent by weight of a blowing agent, E) from 0 to 5 percent by weight of a nucleating agent, where the sum of A) to E) is 100% by weight.Type: ApplicationFiled: March 1, 2010Publication date: December 29, 2011Applicant: BASF SEInventors: Carsten Schips, Jens Assmann, Georg Grässel, Geert Janssens, Maximillan Hofmann, Holger Ruckdäschel, Jürgen Lambert, Christof Zylla
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Publication number: 20110294910Abstract: An expandable pelletized material comprising A) a polymer matrix composed of A1) at least 55% by weight of polyamide (based on the entirety of components A1) and A2)) with a crystallinity of up to 30% and if appropriate a melting point in the range from 100 to 340° C. and a glass transition temperature in the range from 0 to 150° C., and A2) from 0 to 45% by weight of one or more thermoplastic polymers that differ from component A1); B) a physical blowing agent composition, and C) optionally further additives, is suitable for producing a moldable foam for use in the automobile industry, airline industry, construction industry, packaging industry, or sports and leisure industry, or in the transport sector, and/or in engineering.Type: ApplicationFiled: April 27, 2011Publication date: December 1, 2011Applicant: BASF SEInventors: Olaf Kriha, Klaus Hahn, Philippe Desbois, Volker Warzelhan, Holger Ruckdäschel, Maximilian Hofmann, Christian Exner, Roland Hingmann
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Publication number: 20110287066Abstract: Process for the production of nanoporous foamed active substance-containing preparations, wherein the active substance is present embedded in a pharmaceutically acceptable polymer, wherein, in stage a) loading of a polymeric molding composition or a polymer melt with a propellant is effected at a pressure and at a temperature at which the propellant is in the supercritical state, in stage b) heating of the laden polymer molding compound or melt is carried out under pressure at a temperature which lies in the range from ?40 to +60° C., preferably ?20 to +55° C., and especially preferably 0 to +50° C. around the glass transition temperature of the unladen (prior to loading) polymeric molding compound and in stage c) a depressurization of the polymeric molding compound or melt laden in stage a) and heated under pressure in stage b) is effected out with a depressurization rate in the range from 15,000 to 200,000 MPa/sec.Type: ApplicationFiled: May 20, 2011Publication date: November 24, 2011Applicant: BASF SEInventors: Jan Kurt Walter Sandler, Ingo Bellin, Dejan Djuric, Karl Kolter, Holger Ruckdäschel
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Publication number: 20110268972Abstract: Expandable, thermoplastic polymer bead material composed of a multiphase polymer mixture which comprises blowing agent and has at least one continuous phase of a thermoplastic polymer, where at least two different disperse phases P1 and P2 are present, disperse in the continuous phase, and also to processes for its production, and to use for the production of elastic molded foams.Type: ApplicationFiled: December 15, 2009Publication date: November 3, 2011Applicant: BASF SEInventors: Carsten Schips, Klaus Hahn, Maximilian Hofmann, Holger Ruckdäschel, Jens Assmann, Geert Janssens, Georg Gräßel, Jurgen Lambert, Christof Zylla
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Publication number: 20110269858Abstract: Expandable, thermoplastic polymer bead material, comprising A) from 45 to 97.8 percent by weight of a styrene polymer, B1) from 1 to 45 percent by weight of a polyolefin with a melting point in the range from 105 to 140° C., B2) from 0 to 25 percent by weight of a polyolefin with a melting point below 105° C., C1) from 0.1 to 25 percent by weight of a block or graft copolymer with weight-average molar mass Mw of at least 100,000 g/mol, comprising a) at least one block S composed of from 95 to 100% by weight of vinylaromatic monomers and from 0 to 5% by weight of dienes, and b) at least one copolymer block (S/B)A composed of from 63 to 80% by weight of vinylaromatic monomers and from 20 to 37% by weight of dienes, with glass transition temperature TgA in the range from 5 to 30° C.Type: ApplicationFiled: December 16, 2009Publication date: November 3, 2011Applicant: BASF SEInventors: Carsten Schips, Klaus Hahn, Konrad Knoll, Holger Ruckdäschel, Jens Assmann, Georg Grässel, Maximilian Hofmann
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Publication number: 20110065819Abstract: Expandable, thermoplastic polymer bead material, comprising A) from 45 to 98.8 percent by weight of a styrene polymer, B1) from 1 to 45 percent by weight of a polyolefin whose melting point is in the range from 105 to 140° C., B2) from 0 to 25 percent by weight of a polyolefin whose melting point is below 105° C., C1) from 0.1 to 9.9 percent by weight of a styrene-butadiene block copolymer, C2) from 0.1 to 9.9 percent by weight of a styrene-ethylene-butylene block copolymer, D) from 1 to 15 percent by weight of a blowing agent, E) from 0 to 5 percent by weight of a nucleating agent where the entirety of A) to E) gives 100% by weight, and also processes for production of the same, and use for the production of elastic molded-foam moldings.Type: ApplicationFiled: March 12, 2009Publication date: March 17, 2011Applicant: BASF SE Patents, Trademarks and LicensesInventors: Carsten Schips, Klaus Hahn, Georg Grässel, Daniela Longo-Schedel, Jens Assmann, Andreas Gietl, Konrad Knoll, Holger Ruckdäschel, Maximilian Hofmann, Christof Zylla, Jürgen Lambert, Geert Janssens