Patents by Inventor Xavier Muyldermans
Xavier Muyldermans 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: 11555085Abstract: A polymer composition comprising a star-branched copolymer having a plurality of arms is disclosed. Each polymer arm has a molecular weight Mp of from 1 kg/mol to 50 kg/mol and comprises polymerized units (i) derived from a first vinyl aromatic monomer comprising a radical-reactive group, wherein from greater than 10 mol % to 100 mol % of the units (i) are unhydrogenated; and optionally, polymerized units (ii) comprising hydrogenated and unhydrogenated forms of polymerized units derived from a high Tg monomer, and hydrogenated form of polymerized units (i) or hydrogenated form of polymerized styrene units; and optionally, polymerized units (iii) comprising (a) hydrogenated form of polymerized units derived from one or more acyclic conjugated dienes, and (b) polymerized units derived from one or more of a second vinyl aromatic monomer; wherein less than 10 wt. % of units (a) are unhydrogenated.Type: GrantFiled: May 1, 2020Date of Patent: January 17, 2023Assignee: Kraton Polymers LLCInventors: Xavier Muyldermans, Ruidong Ding, Frank de Wit, Koen van Duin
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Patent number: 11401410Abstract: A resin composition that allows production of laminated sheets excellent in heat resistance and processability is disclosed. The resin composition comprises: a) a block copolymer, where the block copolymer comprises at least one polymer block comprising polymerized acyclic conjugated diene units, such as butadiene units, and at least one polymer block containing units like a conjugated cyclic diene such as 1,3-cyclohexadiene or monomer units characterized by unit Tg above 100° C., b) a curing initiator, and c) optionally diene-based polymer selected from a polybutadiene polymer and the copolymer of butadiene with styrene or other styrenic monomers, c) optional additives comprising but not limited to a multi-functional co-curable additive, a diene based rubber, a halogenated or non halogenated flame retardant, an inorganic or organic filler or fiber, an antioxidant, a adhesion promotor, a film forming.Type: GrantFiled: May 1, 2020Date of Patent: August 2, 2022Assignee: KRATON POLYMERS LLCInventors: Ruidong Ding, Yaming Niu, Bing Yang, Xavier Muyldermans, Frank de Wit, Huixian Yang
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Patent number: 11279821Abstract: A selectively hydrogenated block copolymer of general formula S-E-S, (S-E1)nX, or mixtures thereof is disclosed, where n has a value of 2-6, and X is a coupling agent residue. Before hydrogenation, S is a polystyrene block having a molecular weight of 4,400-5,600 g/mol, and E and E1 are polydiene blocks having molecular weights of 18,000-36,000 g/mol and 9,000 to 18,000 g/mol, respectively, selected from polybutadiene, polyisoprene and mixtures thereof, and having a total vinyl content of 60-85 mol %. After hydrogenation, the block copolymer has 0-10 percent of styrene double bonds reduced and at least 80 percent of conjugated diene double bonds reduced. The block copolymer has a solution viscosity of less than 80 centipoise (cP); a polystyrene content of 25-40 wt. % and up to 50 wt. % of diblock units of general formula S-E or S-E1.Type: GrantFiled: June 26, 2020Date of Patent: March 22, 2022Assignee: Kraton Polymers LLCInventors: John E Flood, Xavier Muyldermans
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Patent number: 10920064Abstract: The disclosure relates to a hydrogenated styrenic block copolymer with high vinyl content, low viscosity, low order-disorder temperature and improved processability. The hydrogenated styrenic block copolymers can be extruded or molded with a minimum of additives. The hydrogenated styrenic block copolymers have high melt flows allowing for ease in processing such as injection molding, overmolding, dipping, extrusion, roto-molding, slush molding, fiber spinning, film making, 3D printing and foaming.Type: GrantFiled: March 21, 2019Date of Patent: February 16, 2021Assignee: Kraton Polymers LLCInventors: John E Flood, Xavier Muyldermans
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Publication number: 20200347168Abstract: A polymer composition comprising a star-branched copolymer having a plurality of arms is disclosed. Each polymer arm has a molecular weight Mp of from 1 kg/mol to 50 kg/mol and comprises polymerized units (i) derived from a first vinyl aromatic monomer comprising a radical-reactive group, wherein from greater than 10 mol % to 100 mol % of the units (i) are unhydrogenated; and optionally, polymerized units (ii) comprising hydrogenated and unhydrogenated forms of polymerized units derived from a high Tg monomer, and hydrogenated form of polymerized units (i) or hydrogenated form of polymerized styrene units; and optionally, polymerized units (iii) comprising (a) hydrogenated form of polymerized units derived from one or more acyclic conjugated dienes, and (b) polymerized units derived from one or more of a second vinyl aromatic monomer; wherein less than 10 wt. % of units (a) are unhydrogenated.Type: ApplicationFiled: May 1, 2020Publication date: November 5, 2020Applicant: Kraton Polymers LLCInventors: Xavier Muyldermans, Ruidong Ding, Frank de Wit, Koen van Duin
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Publication number: 20200347219Abstract: A resin composition that allows production of laminated sheets excellent in heat resistance and processability is disclosed. The resin composition comprises: a) a block copolymer, where the block copolymer comprises at least one polymer block comprising polymerized acyclic conjugated diene units, such as butadiene units, and at least one polymer block containing units like a conjugated cyclic diene such as 1,3-cyclohexadiene or monomer units characterized by unit Tg above 100° C.Type: ApplicationFiled: May 1, 2020Publication date: November 5, 2020Applicant: Kraton Polymers LLCInventors: Ruidong Ding, Yaming Niu, Bing Yang, Xavier Muyldermans, Frank de Wit, Huixian Yang
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Publication number: 20200325324Abstract: A selectively hydrogenated block copolymer of general formula S-E-S, (S-E1)nX, or mixtures thereof is disclosed, where n has a value of 2-6, and X is a coupling agent residue. Before hydrogenation, S is a polystyrene block having a molecular weight of 4,400-5,600 g/mol, and E and E1 are polydiene blocks having molecular weights of 18,000-36,000 g/mol and 9,000 to 18,000 g/mol, respectively, selected from polybutadiene, polyisoprene and mixtures thereof, and having a total vinyl content of 60-85 mol %. After hydrogenation, the block copolymer has 0-10 percent of styrene double bonds reduced and at least 80 percent of conjugated diene double bonds reduced. The block copolymer has a solution viscosity of less than 80 centipoise (cP); a polystyrene content of 25-40 wt. % and up to 50 wt. % of diblock units of general formula S-E or S-E1.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Applicant: KRATON POLYMERS LLCInventors: John E. Flood, Xavier Muyldermans
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Publication number: 20190292361Abstract: The disclosure relates to a hydrogenated styrenic block copolymer with high vinyl content, low viscosity, low order-disorder temperature and improved processability. The hydrogenated styrenic block copolymers can be extruded or molded with a minimum of additives. The hydrogenated styrenic block copolymers have high melt flows allowing for ease in processing such as injection molding, overmolding, dipping, extrusion, roto-molding, slush molding, fiber spinning, film making, 3D printing and foaming.Type: ApplicationFiled: March 21, 2019Publication date: September 26, 2019Applicant: KRATON POLYMERS LLCInventors: John E. Flood, Xavier Muyldermans
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Patent number: 9938401Abstract: The present invention relates to advanced flame/fire retardant compositions for fabric, upholstery, carpet, barrier, automotive, building construction, communication, and consumer electronics applications. The flame retardant composition comprises: about 5-25 wt. % hydrogenated styrenic block copolymer, about 6-40 wt. % polyolefin, about 50-80 wt. % inorganic flame retardant, about 0-5 wt. % coating, about 0-5 wt. % functionalized styrenic block copolymer, about 0-7 wt. % agri-derived heat resistant liquid, about 0.05-1.0 wt. % antioxidant, and about 0-7 wt. % optional additives such as metal deactivator, colorant, filler, and/or lubricants, wherein said composition totals 100 wt. %. An article made from the flame retardant composition, such as film, fiber, cable, and wire insulation meets various European and U.S. standards. The flame retardant compositions possess a good balance of tensile strength, elongation, flame resistance, and processability that has previously been unobtainable.Type: GrantFiled: November 1, 2013Date of Patent: April 10, 2018Assignee: Kraton Polymers U.S. LLCInventors: Jan de Boer, Xavier Muyldermans, Hiroshi Kato, Norio Masuko
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Publication number: 20140128527Abstract: The present invention relates to advanced flame/fire retardant compositions for fabric, upholstery, carpet, barrier, automotive, building construction, communication, and consumer electronics applications. The flame retardant composition comprises: about 5-25 wt. % hydrogenated styrenic block copolymer, about 6-40 wt. % polyolefin, about 50-80 wt. % inorganic flame retardant, about 0-5 wt. % coating, about 0-5 wt. % functionalized styrenic block copolymer, about 0-7 wt. % agri-derived heat resistant liquid, about 0.05-1.0 wt. % antioxidant, and about 0-7 wt. % optional additives such as metal deactivator, colorant, filler, and/or lubricants, wherein said composition totals 100 wt. %. An article made from the flame retardant composition, such as film, fiber, cable, and wire insulation meets various European and U.S. standards. The flame retardant compositions possess a good balance of tensile strength, elongation, flame resistance, and processability that has previously been unobtainable.Type: ApplicationFiled: November 1, 2013Publication date: May 8, 2014Applicant: KRATON POLYMERS US LLCInventors: Jan de Boer, Xavier Muyldermans, Hiroshi Kato, Norio Masuko
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Patent number: 8008398Abstract: Foamable compositions which are usable for the manufacture of foamed, flexible, heat resistant, thermoplastic elastomeric articles, and which comprises at least: (a) 100 pbw of one or more selectively hydrogenated block copolymers, (b) 5 to 50 pbw per 100 pbw of component (a) of one or more different selectively hydrogenated block copolymers, (c) 42 to 80 pbw per 100 pbw of component (a) of a linear crystalline polymer comprising propylene as the major component, (d) from 100 to 250 pbw per 100 pbw of component (a) of a softener compatible with blocks B and B?, and (e) from 0.01 to 3 wt. %, relative to the weight of the primary components (a) to (e) of a solid chemical nucleating agent of the endothermic group in combination with a blowing agent.Type: GrantFiled: September 3, 2004Date of Patent: August 30, 2011Assignee: Kraton Polymers U.S. LLCInventors: Xavier Muyldermans, Emmanuelle Coignoul
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Patent number: 7592390Abstract: The present invention relates to novel compositions comprising (a) anionic block copolymers of mono alkenyl arenes and conjugated dienes, and (b) tailored softening modifiers have a particular polydispersity index that results in a surprising improvement in properties for the composition. Also included are processes for the manufacturing such novel compositions and various end-uses and applications for such compositions.Type: GrantFiled: March 24, 2006Date of Patent: September 22, 2009Assignee: Kraton Polymers U.S. LLCInventors: Robert C. Bening, Hendrik de Groot, Dale L. Handlin, Jr., Xavier Muyldermans, Carl L. Willis, Kathryn J. Wright
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Patent number: 7449518Abstract: A novel process for preparation of block copolymers containing, for example, alpha-methyl-styrene/styrene glassy blocks is claimed, where the glassy blocks contain 25-50 mol % alpha-methyl-styrene and have Tg values in the range of 120 to 140° C. The copolymerization process, which is conducted at 35 to 60° C. and relatively high solids contents and with continuous addition of styrene, results in very high conversions of the alpha-methyl-styrene. Selectively hydrogenated block copolymers having high glassy block Tg values are also disclosed and claimed as well as high service temperature elastomeric compositions comprising the block copolymer and an olefin polymer or copolymer.Type: GrantFiled: March 20, 2007Date of Patent: November 11, 2008Assignee: Kraton Polymers U.S. LLCInventors: Robert C. Bening, Carl L. Willis, Xavier Muyldermans
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Publication number: 20080132645Abstract: A high melt strength thermoplastic elastomer composition, comprising: (i) at least one linear crystalline polyolefin, having a melting temperature (Tm) of at least 100° C. and a Polydispersity Index (PI) of more than 20, determined by means of an isothermal dynamic frequency sweep at 190° C. and calculated by means of the equation PI=100,000/Gc, wherein Gc is expressed in Pascal and represents the crossover modulus (Gc=G?=G?) and (ii) at least one thermoplastic elastomer (TPE) or a blend behaving as TPE, wherein the TPE or the blend are compatible with the polyolefin (i), and have a compression set below 50% at ambient temperature after 24 h compression (ASTM D395-03, “Compression Set under constant deflection in air”), wherein the amount of component (i) is in the range of 0.Type: ApplicationFiled: December 20, 2005Publication date: June 5, 2008Inventors: Xavier Muyldermans, Emmanuelle Coignoul
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Publication number: 20080039584Abstract: A novel process for preparation of block copolymers containing, for example, alpha-methyl-styrene/styrene glassy blocks is claimed, where the glassy blocks contain 25-50 mol % alpha-methyl-styrene and have Tg values in the range of 120 to 140° C. The copolymerization process, which is conducted at 35 to 60° C. and relatively high solids contents and with continuous addition of styrene, results in very high conversions of the alpha-methyl-styrene. Selectively hydrogenated block copolymers having high glassy block Tg values are also disclosed and claimed as well as high service temperature elastomeric compositions comprising the block copolymer and an olefin polymer of copolymer.Type: ApplicationFiled: March 20, 2007Publication date: February 14, 2008Applicant: Kraton Polymers U.S. LLCInventors: Robert C. Bening, Carl L. Willis, Xavier Muyldermans
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Publication number: 20070225428Abstract: The present invention relates to novel compositions comprising (a) anionic block copolymers of mono alkenyl arenes and conjugated dienes, and (b) tailored softening modifiers have a particular polydispersity index that results in a surprising improvement in properties for the composition. Also included are processes for the manufacturing such novel compositions and various end-uses and applications for such compositions.Type: ApplicationFiled: March 24, 2006Publication date: September 27, 2007Inventors: Robert Bening, Hendrik de Groot, Dale Handlin, Xavier Muyldermans, Carl Willis, Kathryn Wright
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Publication number: 20070155846Abstract: Foamable compositions which are usable for the manufacture of foamed, flexible, heat resistant, thermoplastic elastomeric articles, and which comprise at least: (a) 100 parts by weight of one ore more selectively hydrogenated block copolymers, having at least two resinous blocks A of non-hydrogenated predominantly polymerized monovinyl arene, and a selectively hydrogenated elastomeric block B, wherein said block B prior to hydrogenation being predominantly a polymerized conjugated diene or dienes, said block copolymer having a total apparent molecular weight of at least 250 kg/mole, and containing polymerized monovinyl arene blocks of true molecular weight of at least 18 kg/mole, (b) 5 to 50, preferably from 15 to 40 parts by weight of one or more selectively hydrogenated block copolymers having at least two resinous blocks A? of non hydrogenated predominantly polymerized monovinyl arene, and an selectively hydrogenated elastomeric block B?, wherein said block B? prior to hydrogenation has been derived from aType: ApplicationFiled: September 3, 2004Publication date: July 5, 2007Inventors: Xavier Muyldermans, Emmanuelle Coignoul
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Publication number: 20040242721Abstract: The present invention relates to a curable polymeric composition comprising (i) a thermoplastic block copolymer containing at least two polymer blocks A separated by at least one polymer block B, as component (ii) a polymerisable monofunctional compound (I) compatible with polymer block B or a composition (II) of polymerisable functional compounds which composition (II) is compatible with polymer block B and (iii) optionally an initiator that is at least partially compatible with the polymer block B and/or component (ii); (iv) optionally a polyolefin polymer; (v) optionally a plasticiser compatible with polymer block B and incompatible with polymer blocks A; and (vi) optionally an aromatic resin compatible with polymer blocks A and incompatible or only partially compatible with polymer block B.Type: ApplicationFiled: April 15, 2004Publication date: December 2, 2004Inventors: Xavier Muyldermans, Olivier Roumache
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Patent number: 6506541Abstract: The present invention relates to a photo-curable polymer composition comprising: a) a first block copolymer comprising at least two blocks A of polymerised mono-vinyl aromatic monomer, and at least one block B of polymerised conjugated diene monomer, wherein the total polymerised mono-vinyl aromatic monomer content is in the range from 5 to 25% by weight of the block copolymer; b) 5 to 10% by weight of a second block copolymer having one block A of polymerised mono-vinyl aromatic monomer and at least one block B of polymerised conjugated diene monomer, wherein the total polymerised mono-vinyl aromatic monomer content is in the range from 5 to 50% by weight of the block copolymer, alkoxy or epoxy functional groups; and c) at least 5% by weight of a low molecular weight block copolymer, wherein the total of (b) and (c) is from 15% by weight to 80% by weight, the low molecular weight block copolymer having one block A of polymerised mono-vinyl aromatic monomer, and at least one block B of polymerised conjugatedType: GrantFiled: May 7, 2001Date of Patent: January 14, 2003Assignee: Kraton Polymers US LLCInventors: Shingo Sugiyama, Nobuyuki Tsukakoshi, Larry McArthur Kegley, Xavier Muyldermans
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Publication number: 20020045129Abstract: The present invention relates to a photo-curable polymer composition comprising:Type: ApplicationFiled: May 7, 2001Publication date: April 18, 2002Inventors: Shingo Sugiyama, Nobuyuki Tsukakoshi, Larry McArthur Kegley, Xavier Muyldermans