Lactam-containing Reactant Patents (Class 528/323)
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Publication number: 20140142274Abstract: The present invention relates to solid particles which comprise at least one lactam, and also at least one activator, and at least one catalyst, to a process for the production of these, and also to the use of these for the production of polyamide, and to a process for the production of polyamide.Type: ApplicationFiled: July 2, 2012Publication date: May 22, 2014Applicant: BASF SEInventors: Philippe Desbois, Silke Biedasek, Andreas Wollny
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Publication number: 20140135444Abstract: The invention relates to an optically transparent polymer film or extrudate product made of a polymer composition comprising a semi-crystalline polyamide having a melting temperature of at least 270° C. or a blend of the semi-crystalline polyamide (A) and a second polymer (B), and optionally at least one additive, wherein the semi-crystalline polyamide (A) is present in an amount of more than 50 wt. %, relative to the total weight of the polymer composition, the polymer composition in the optically transparent polymer film or extrudate product has a melting temperature (Tm-C) in the range of 270-340° C., and wherein the film or a part of the extrudate product has a haze of less than 12% and a light transmittance, of at least 88% measured with the method according to ASTM D1003A.Type: ApplicationFiled: January 21, 2014Publication date: May 15, 2014Applicant: DSM IP ASSETS B.V.Inventors: Alexander Antonius Maria STROEKS, Rudy RULKENS, Lee SANGHOON, Sidiki Tamim PETER
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Patent number: 8716425Abstract: A method of improving the mechanical properties of polymers is described. The method involves heat treating the polymer at a temperature below the glass transition temperature in a wet or in a dry environment. Polymer articles capable of moisture uptake in humid environments, as well as polymer articles less susceptible to moisture uptake, have improved mechanical properties, particularly improved stress relaxation behavior and set properties, when treated in accord with the heat treatment method.Type: GrantFiled: July 29, 2005Date of Patent: May 6, 2014Assignee: Bay Materials, LLCInventors: Ray F. Stewart, John G. Lahlouh
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Publication number: 20140120336Abstract: The fiber cross-section of an island-in-a-sea composite fiber perpendicular to the fiber axis, the island component and sea component are arranged such that the sea component surrounds the island components. The composite cross-section is very consistent, and the fiber has excellent post-processibility. The island-in-a-sea composite fiber wherein diameter of the island component is 10 to 1000 nm, variation of the island component diameter is 1.0 to 20.0%, modification ratio is 1.00 to 1.10, and variation of the modification ratio is 1.0 to 10.0%.Type: ApplicationFiled: June 12, 2012Publication date: May 1, 2014Applicant: Toray Industries, Inc.Inventors: Masato Masuda, Joji Funakoshi, Akira Kishiro
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Publication number: 20140114046Abstract: In a biaxially oriented nylon film for cold forming, respective tensile stresses ?0.5 in four directions of an MD direction, a TD direction, a 45-degree direction and a 135-degree direction at a time when a strain is 0.5 are each in a range from 120 MPa to 240 MPa in a stress-strain curve obtained through a tensile test conducted on the film under conditions comprising a sample width of 15 mm, a distance between gauge points of 50 mm and a tensile speed of 100 mm/min, and a ratio ?max/?min between a maximum stress ?max and a minimum stress ?min of the stresses in the four directions at the time when the strain is 0.5 is 1.6 or less.Type: ApplicationFiled: July 12, 2012Publication date: April 24, 2014Applicant: IDEMITSU UNITECH CO., LTD.Inventor: Masao Takashige
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Patent number: 8703900Abstract: Processes for making caprolactam (CL) from monoammonium adipate (MAA) and/or adipic acid (AA) obtained from a clarified diammonium adipate-containing (DAA-containing) fermentation broth or MAA-containing fermentation broth and converting the MAA or AA to the CL with hydrogen in the presence of a catalyst at selected temperatures and pressures.Type: GrantFiled: June 10, 2011Date of Patent: April 22, 2014Assignee: BioAmber Inc.Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Bernard D. Dombek
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Patent number: 8703879Abstract: A continuous process for the multistage drying and postcondensation of polyamide pellets in the solid phase comprises 1) carrying out the predrying process in a continuous drying apparatus which is operated in countercurrent mode or in crossflow mode with inert gas or steam, or with a mixture of inert gas and steam, using a pellet temperature in the range from 70 to 200° C., and 2) Carrying out the subsequent continuous postcondensation process in a separate vertical duct with moving bed at a pellet temperature in the range from 120 to 210° C., where the duct is operated in countercurrent mode with inert gas or steam, or with a mixture of inert gas and steam, the inert gas is introduced at least two sites along the duct, and from 15 to 90% of the inert gas is introduced at the base of the vertical duct and from 10 to 85% of the inert gas is introduced in the upper half below the surface of the pellets.Type: GrantFiled: June 19, 2009Date of Patent: April 22, 2014Assignee: BASF SEInventors: Wolfgang Loth, Faissal-Ali El-Toufaili, Achim Stammer, Gad Kory, Achim Gerstlauer, Jens Becker
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Patent number: 8658756Abstract: The present invention relates to a composition that can be used to manufacture an impermeable, sealing, tight envelope, to a process for manufacturing an impermeable envelope, and to a tank. The composition of the invention comprises in % by weight relative to the total weight of the composition: from 70 to 90% of a monomer (I); from 0.1 to 1% of an activator (II), in which R is chosen from the group comprising CnH2n+2, n being an integer chosen from 1 to 10; —OH; —OCnH2n+2, n being an integer chosen from 1 to 10; and —NHR? where R? is either CnH2n+2, n being an integer chosen from 1 to 10, or an amine functional group; from 2 to 6% of a catalyst (III), in which X is chosen from the group comprising MgBr, MgI, Li and Na; and from 10 to 20% of an additive (IV), with: This composition can be used, for example, to manufacture elements that are impermeable to fluids, for example impermeable envelopes, for example that can be used in the manufacture of type IV tanks or hydraulic accumulators.Type: GrantFiled: November 23, 2006Date of Patent: February 25, 2014Assignee: Commissariat a l'Energie AtomiqueInventors: Philippe Mazabraud, Elodie Chauvot, Laurent Delnaud, Katia Barral
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Patent number: 8642716Abstract: The present invention relates to branched polyamides comprising unsaturated ends comprising: at least one unit originating from a multifunctional monomer (A) having more than two functional groups, at least sequences resulting from the condensation, in the presence of at least one unsaturated monoacid, either of at least two different lactams, or of at least one lactam, at least one dicarboxylic acid and at least one diamine, or of a lactam or of an ?,?-aminocarboxylic acid, or of a diamine and of a diacid. The invention also relates to thermofusible adhesives comprising these branched polyamides comprising unsaturated ends, and to the use of these branched polyamides comprising unsaturated ends in sheathing electrical cables.Type: GrantFiled: April 25, 2005Date of Patent: February 4, 2014Assignee: Arkema FranceInventors: Annett Linemann, Thierry Briffaud
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Publication number: 20140031512Abstract: This invention relates to a polymer composition comprising monomeric units derived from caprolactam, wherein a) the caprolactam content is at most 0.3 wt % based on the total amount of polymer composition, and b) wherein [acid end groups]?[amine end groups]?meq/kg, whereby [acid end groups] is the concentration of acid end groups in the polymer composition in meq/kg and [amine end groups] is the concentration of amine end groups in the polymer composition in meq/kg; c) and wherein the RSV is at least 2.8. This invention also relates to a process for producing this polymer composition as well as articles made thereof.Type: ApplicationFiled: October 20, 2011Publication date: January 30, 2014Applicant: DSM IP ASSETS B.V.Inventors: Cornelia Emilie Maria Bronsaer, John Falke
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Patent number: 8603634Abstract: This invention relates to poly(ester amide)s (PEAs) comprising inactivated terminal amino and carboxyl groups, methods of synthesizing the inactivated PEAs and uses for them in the treatment of vascular diseases.Type: GrantFiled: March 23, 2009Date of Patent: December 10, 2013Assignee: Abbott Cardiovascular Systems Inc.Inventors: Jessica Renee DesNoyer, Stephen Dirk Pacetti, Vidya Nayak, Lothar Kleiner
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Publication number: 20130324693Abstract: Polyamide particles are introduced into the upper region of a reaction space and are removed from a lower region. As they fall through the reaction space, the particles are countercurrently contacted by a process gas initially having a water content of 0.8% to 20% by weight, and a temperature of 100 to 200° C. The ratio of the superficial space velocity of the process gas to the loosening velocity of the polyamide particles is in the range from 0.7 to 1.5 in the lower region. Other flow parameters are controlled such that the process gas does not condense out in the upper region of the reaction space.Type: ApplicationFiled: June 5, 2013Publication date: December 5, 2013Inventors: Andreas Christel, Brent Allan Culbert
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Publication number: 20130253132Abstract: Polymer obtainable by polycondensation or polyadduct formation from monomeric compounds, wherein accompanying use is made as monomeric compound of 2-isopropyl-2-alkyl-1,3-propanediols of the formula I or alkoxylated derivatives thereof.Type: ApplicationFiled: May 21, 2013Publication date: September 26, 2013Applicant: BASF SEInventors: Darijo MIJOLOVIC, Sebastien GARNIER, Qiang MIAO, Maria GUIXA-GUARDIA, Gerd-Dieter TEBBEN
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Patent number: 8541540Abstract: A continuous process is disclosed for the extraction of monomeric caprolactam and its oligomers as the raw polymer product obtained in the polymerization of polyamide-6 in which no fresh water, but processing water or previously used extraction water is used for the granulation.Type: GrantFiled: August 18, 2009Date of Patent: September 24, 2013Assignee: Lurgi Zimmer GmbHInventors: Klaus Kirsten, Manfred Albrecht, Franz Samlitschka
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Publication number: 20130231454Abstract: There is disclosed herein a multicomponent fibrous assembly comprising a plurality of continuous filaments formed from a biobased polyhexamethylene sebacamide polymer or a blend of a biobased polyhexamethylene sebacamide polymer together with up to 80 wt % of at least one other polymer compatible with the biobased polyhexamethylene sebacamide polymer. There is also disclosed a process for preparing a biobased polyhexamethylene sebacamide bulked continuous filament (BCF) yarn comprising melt-spinning a polymer melt containing polyhexamethylene sebacamide polymer or a blend of a biobased polyhexamethylene sebacamide polymer together with up to 80 wt % of at least one other polymer compatible with the biobased polyhexamethylene sebacamide polymer to form at least one filament, passing the at least one filament to a drawing stage where the filament is drawn and lengthened to produce a yarn, followed by texturing the yarn.Type: ApplicationFiled: December 17, 2012Publication date: September 5, 2013Applicants: Universal Fibers, Inc., INTERFACE AUST PTY. LTD.Inventors: Larry A. Kestner, Zulfiqar A. Khan
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Publication number: 20130225785Abstract: Processes are disclosed for the conversion of adipic acid to caprolactam employing a chemocatalytic reaction in which an adipic acid substrate is reacted with ammonia and hydrogen, in the presence of particular heterogeneous catalysts and employing unique solvents. The present invention also enables the conversion of other adipic acid substrates, such as mono-esters of adipic acid, di-esters of adipic acid, mono-amides of adipic acid, di-amides of adipic acid, and salts thereof to caprolactam. Solvents useful in the process that do not react with ammonia are also disclosed. Catalyst supports are disclosed which catalyze the reaction of the substrate with ammonia in the absence of added metal. Metals on the catalyst supports comprise ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and/or platinum (Pt). Heterogeneous catalysts comprising ruthenium (Ru) and rhenium (Re) on titania and/or zirconia supports are also disclosed.Type: ApplicationFiled: February 13, 2013Publication date: August 29, 2013Applicant: Rennovia, Inc.Inventor: Rennovia, Inc.
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Patent number: 8519084Abstract: A polymer obtainable by polycondensation or polyaddition of monomeric compounds, wherefor accompanying use is made as monomeric compound of 2-(2-methylbutyl)-2-propyl-1,3-propanediol of the formula I or its alkoxylated derivatives (also referred to collectively below as C11 diol).Type: GrantFiled: June 10, 2009Date of Patent: August 27, 2013Assignee: BASF SEInventors: Darijo Mijolovic, Sebastien Garnier, Qiang Miao, Maria Guixa Guardia, Gerd-Dieter Tebben, Dag Wiebelhaus
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Publication number: 20130211038Abstract: The invention relates to a method for preparing a lactam in a continuous process, comprising forming the lactam and ammonium sulphate by contacting a lactam sulphate contained in an acidic liquid with ammonia, during which forming of lactam heat of reaction is generated, which heat is partially or fully recovered, wherein ammonia is brought into contact with the acidic liquid as part of a liquid aqueous ammonia solution, and wherein the contacting takes place at a temperature of at least 120° C., and wherein the average residence time at a temperature of at least 120° C. is at most 15 minutes, and wherein the ammonium sulphate remains dissolved in a liquid phase during said residence time.Type: ApplicationFiled: July 1, 2011Publication date: August 15, 2013Applicant: DSM IP Assets B.V.Inventors: Hendrik Oevering, Rudolf Philippus Maria Guit, Henricus Anna Christiaan Baur
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Publication number: 20130190471Abstract: Provided are: an impact-resistant polyamide composition which exhibits improved toughness and improved impact strength and which can be easily polymerized in-situ in a molding stage; and a novel process for the production of the same. The novel process comprises initiating the anionic polymerization of ?-caprolactam in the presence of (A) an anionic polymerization catalyst, (B) an anionic polymerization activator, (C) 2.0 to 30% by weight (relative to the ?-caprolactam) of an N,N-disubstituted vinylbenzylamine, and (D) a radical polymerization initiator, and subjecting the resulting system to reaction under conditions comprising a reaction temperature of the reaction system of 120 to 180° C. and a reaction time of 10 seconds to 120 minutes. Since radical polymerization in the process is conducted without hindering the anionic polymerization, an alloyed polyamide composed of both polycaprolactam and poly (N,N-disubstituted vinylbenzylamine) can be obtained.Type: ApplicationFiled: June 23, 2011Publication date: July 25, 2013Applicant: NAGASE CHEMTEX CORPORATIONInventors: Tokizane Imanishi, Hirofumi Nishida
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Patent number: 8487024Abstract: The present invention relates to a polyamide obtainable by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a substituent branched from a main chain.Type: GrantFiled: March 11, 2009Date of Patent: July 16, 2013Assignee: Asahi Kasei Chemicals CorporationInventors: Yasukazu Shikano, Teruaki Sakuma, Hiroki Matsui, Masaaki Aramaki, Yu Nitto, Shinji Ieda
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Publication number: 20130158229Abstract: A process for making a hydrogenated product comprising caprolactone (CLO) and 1,6-hexanediol (HDO) and derivatives thereof from adipic acid (AA) obtained from fermentation broths containing diammonium adipate (DAA) or monoammonium adipate (MAA).Type: ApplicationFiled: June 10, 2011Publication date: June 20, 2013Applicant: BIOAMBER S.A.S.Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Bernard D. Dombek
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Publication number: 20130150551Abstract: Processes for making hydrogenated products including caprolactame (CL) caprolactone (CLO) or 1,6-hexanediol (HDO) and derivative thereof from monoammonium adipate (MAA) and/or adipic acid (AA) obtained from a clarified diammonium adipate-containing (DAA-containing) fermentation broth or monoammonium adipate-containing (MAA-containing) fermentation broth.Type: ApplicationFiled: June 10, 2011Publication date: June 13, 2013Applicant: BIOAMBER S.A.S.Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Bernard D. Dombek
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Patent number: 8449978Abstract: An insulated wire including a conductor, and an insulating film formed by coating and baking an insulating varnish on the conductor directly or via another insulation layer. The insulating varnish includes a phenolic hydroxyl group-containing polyimide resin represented by a chemical formula (1): where X is a tetravalent aromatic group composing an aromatic tetracarboxylic dianhydride residue, Y1 is a divalent aromatic group including one or more phenolic hydroxyl groups and Y2 is a divalent aromatic group not including a phenolic hydroxyl group A ratio of the number Z1 of phenolic hydroxyl groups included in Y1 of the chemical formula (1) to the number Z2 of an imide group included in the chemical formula (1) is 0.15?Z1/Z2?0.85.Type: GrantFiled: September 16, 2008Date of Patent: May 28, 2013Assignees: Hitachi Cable, Ltd., Hitachi Magnet Wire Corp.Inventors: Yuki Honda, Tomiya Abe, Hideyuki Kikuchi
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Publication number: 20130131305Abstract: A process for producing polyamides from the corresponding monomers and/or prepolymers comprises the steps of (a) reacting the monomers and/or prepolymers and optionally further components under polyamide-forming reaction conditions to form polyamide, (b) treating the polyamide obtained in step (a) in a kneader above the melting temperature of the polyamide, (c) further processing the polyamide from step (b) into pellet, film, fiber or moldings, preferably pelletizing the polyamide, (d) extracting some or all unconverted monomers and any product dimers and oligomers and also optionally further components from the polyamide and/or drying the polyamide.Type: ApplicationFiled: November 20, 2012Publication date: May 23, 2013Applicant: BASF SEInventor: BASF SE
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Publication number: 20130131306Abstract: Processes for producing caprolactam (CL) and derivatives thereof from adipic acid (AA) obtained from fermentation broths containing diammonium adipate (DAA) or monoammonium adipate (MAA).Type: ApplicationFiled: June 10, 2011Publication date: May 23, 2013Applicant: BIOAMBER S.A.S.Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Bernard D. Dombek
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Patent number: 8445626Abstract: Biaxially-oriented nylon film according to the present invention is biaxially-oriented nylon film made from nylon. In the biaxially-oriented nylon film, an elongation ratio of the film in each of four directions (an MD direction, a TD direction, a 45 degree direction and a 135 degree direction) until a film rupture is 70 percent or more, the elongation ratio being measured in a tensile test (testing conditions: a sample width is 15 mm; a distance between gauge points is 50 mm; and a tensile speed is 100 mm/min), and a stress ratio A (?1/?2) between a tensile stress ?1 and a tensile stress ?2 in a stress-strain curve obtained in the tensile test of the film is 2 or more in each of the four directions, the tensile stress ?1 being a value at a point where the elongation ratio becomes 50 percent while the tensile stress ?2 being a value at an yield point.Type: GrantFiled: December 28, 2011Date of Patent: May 21, 2013Assignee: Idemitsu Unitech Co., Ltd.Inventor: Masao Takashige
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Publication number: 20130116398Abstract: Processes for making caprolactam (CL) from monoammonium adipate (MAA) and/or adipic aicd (AA) obtained from a clarified diammonium adipate-containing (DAA-containing) fermentation broth or MAA-containing fermentation broth and converting the MAA or AA to the CL with hydrogen in the presence of a catalyst at selected temperatures and pressures.Type: ApplicationFiled: June 10, 2011Publication date: May 9, 2013Applicant: BIOAMBER S.A.S.Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Bernard D. Dombek
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Patent number: 8420771Abstract: Provided are a new pH-sensitive co-polymer prepared from polyethylene oxide and a method of preparing the same. The polyethylene oxide co-polymer includes repeating units expressed by the Chemical Formulas 1 and 2, and further includes at least one of repeating units expressed by the Chemical Formulas 3 through 6.Type: GrantFiled: February 26, 2009Date of Patent: April 16, 2013Inventors: Jung-Ahn Kim, Hyun-Oh Yoo
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Publication number: 20130085255Abstract: Provided herein are processes for preparing caprolactam from a starting material such as one or more of the cis,cis-, cis,trans- and trans,trans-double-bond isomers of muconamide, muconic acid ester, or muconic acid. The starting material, intermediates, and caprolactam prepared therefrom can contain carbon atoms derived from biomass containing detectable 14C content determined according to ASTM D6866 and optionally containing a 14C content up to 0.0000000001% (one part per trillion). Caprolactam so prepared can be used to make various polyamides.Type: ApplicationFiled: April 9, 2012Publication date: April 4, 2013Applicant: Amyris, Inc.Inventors: Laetitia Coudray, Vu Bui, John W. Frost, Dirk Schweitzer
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Publication number: 20130038822Abstract: Disclosed are polyamide microparticles, a manufacturing method therefor, an optical film, and a liquid crystal display device using the polyamide microparticles, whereby polarized light can be efficiently converted to non-polarized light that is close to natural light, without accompanying a change in color, and light from a light source can be evenly diffused. The disclosed polyamide microparticles are characterized by including a spherocrystal structure and exhibiting a crystallite size of at least 12 nm, as measured by wide-angle X ray diffraction, and a crystallinity of at least 50%, as measured by DSC. The disclosed optical film is characterized by having a resin layer that contains the aforementioned polyamide microparticles.Type: ApplicationFiled: April 19, 2011Publication date: February 14, 2013Applicant: UBE INDUSTRIES, LTD.Inventors: Hajime Aono, Kimio Nakayama, Junya Takahashi, Ryo Sakimoto, Tatsuya Shoji
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Publication number: 20130030146Abstract: The invention relates to a method for preparing caprolactam comprising recovering a mixture containing 6-aminocaproic acid, from a culture medium comprising biomass, and thereafter cyclising the 6-aminocaproic acid in the presence of superheated steam, thereby forming caprolactam, wherein the weight to weight ratio carbohydrate to 6-aminocaproic acid in said mixture is 0.03 or less.Type: ApplicationFiled: December 22, 2010Publication date: January 31, 2013Applicant: DSM IP ASSETS B.V.Inventors: Rudolf Philippus Maria Guit, Thomas Van Der Does, Lourina Madeleine Raamsdonk
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Patent number: 8354492Abstract: The present invention relates to a system comprising a) at least one catalyst for the anionic polymerization of lactams, and b) at least one activator for the anionic polymerization of lactams, wherein the at least one activator is a cyclic isocyanate, at least one allophanate or a mixture thereof.Type: GrantFiled: February 17, 2009Date of Patent: January 15, 2013Assignee: Rhein Chemie Rheinau GmbHInventors: Bernd Kray, Andreas Kugler, Willhelm Laufer, Peter Schuster, Volker Wenzel
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Publication number: 20120329944Abstract: The invention relates to a semiaromatic polyamide, to the process for preparing same, to a composition comprising such a polyamide and to the uses thereof. This polyamide consists of 70 to 95 mol % of a first repeating unit obtained from the polycondensation of at least one first linear or branched aliphatic diamine comprising from 10 to 36 carbon atoms and of at least one aromatic dicarboxylic acid, and of 5 to 30 mol % of a second repeating unit obtained from at least one lactam and/or from at least one aminocarboxylic acid comprising from 9 to 12 carbon atoms.Type: ApplicationFiled: December 21, 2010Publication date: December 27, 2012Applicant: Arkema FranceInventors: Thierry Briffaud, Vincent Ferreiro
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Publication number: 20120264908Abstract: The present invention generally relates to processes for the conversion of glucose to caprolactam employing chemocatalytic oxidation and reduction reactions. The present invention also includes processes for the conversion of glucose to caprolactam via amido polyhydroxy acid products and amidocaproic acid or derivatives thereof. The present invention also includes processes that catalytically oxidize an amidopolyol to amidopolyhydroxy acid or derivatives thereof, and processes that catalytically hydrodeoxygenate amino or amido polyhydroxy acid or derivatives thereof to an amino or amidocaproic acid product. The amino or amidocaproic acid product may then be converted to caprolactam. The present invention also includes products produced by such processes and products producable from such products.Type: ApplicationFiled: March 29, 2012Publication date: October 18, 2012Applicant: Rennovia, Inc.Inventors: Vincent J. MURPHY, Eric L. DIAS, James A. W. SHOEMAKER, Thomas R. BOUSSIE, Zachary M. FRESCO
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Publication number: 20120264907Abstract: A process for making a polyamide polymer, said process comprising heating, in one or more ionic liquid(s), one or more polyamide precursor(s) selected from: (i) one or more free dicarboxylic acid(s) or ester(s) thereof, with one or more diamine(s); or (ii) one or more salt(s) of a dicarboxylic acid with a diamine; or (iii) one or more lactam(s); or (iv) mixtures of any of the foregoing precursors (i) to (iii).Type: ApplicationFiled: June 30, 2010Publication date: October 18, 2012Applicant: INVISTA North America S.a.r.l.Inventors: Keith Whiston, Charles Richard Langrick, Kenneth Richard Seddon, Alberto V. Puga
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Publication number: 20120245320Abstract: The present invention relates to a new method of production of cast polyamides.Type: ApplicationFiled: October 27, 2011Publication date: September 27, 2012Applicant: RHEIN CHEMIE RHEINAU GMBHInventors: Wilhelm Laufer, Armin Eckert
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Patent number: 8268955Abstract: Polyamide containing a compound which bears at least one hydroxy group and has chemical bonding by way of an amide group to the end of the polymer chain, process for preparing this polyamide, and also fibers, films, and moldings, comprising at least one such polyamide.Type: GrantFiled: October 28, 2003Date of Patent: September 18, 2012Assignee: BASF SEInventors: Helmut Winterling, Jürgen Demeter, Kurt Krempel
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Patent number: 8263733Abstract: Helical tube evaporators are used to concentrate aqueous extract solutions from the extraction of polyamides based on polyamide 6. A process for preparing polyamides based on polyamide 6 comprises the stages of b) monophasic or biphasic reaction of aqueous extract solutions from the extraction of polyamides based on polyamide 6, which may be enriched with caprolactam, aminocapronitrile, aminocaproic acid or mixtures thereof, in a prereactor at pressures in the range from 5 to 40 bar and temperatures in the range from 150 to 300° C., the gaseous phase formed being removable from the liquid phase in the case of the biphasic reaction, c) discharge of the reaction mixture from stage b) through a helical tube evaporator at a temperature in the range from 220 to 300° C. with pressure reduction to about atmospheric pressure and removal of a gaseous phase to obtain a liquid phase, d) further reaction of the liquid phase from stage c) at temperatures in the range from 240 to 300° C.Type: GrantFiled: October 19, 2007Date of Patent: September 11, 2012Assignee: BASF SEInventors: Robert Weiss, Jens Becker
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Patent number: 8241545Abstract: The present disclosure provides a method for preparing polylactic acid and its products using a twin-screw extruder, comprising the step of mixing carbon dioxide adducts of carbene and lactide, and obtaining polylactic acid and its products via reactive extrusion using a twin-screw extruder.Type: GrantFiled: February 24, 2011Date of Patent: August 14, 2012Assignee: Nanjing Universty of TechnologyInventors: Zhenjiang Li, Pingkai Ouyang, He Huang
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Publication number: 20120142886Abstract: In various embodiments, the present invention can involve a method of synthesizing ?-amino-?-caprolactam. The method can comprise heating a salt of L-lysine in a solvent comprising an alcohol. In other embodiments, the present invention can involve methods for synthesizing ?-caprolactam. The methods can comprise heating a salt of L-lysine in a solvent comprising an alcohol and deaminating the reaction product. In various embodiments, the invention can include methods of converting biomass into nylon 6. The methods can comprise heating L-lysine in a solvent comprising an alcohol to produce ?-amino-?caprolactam, deaminating to produce ?-caprolactam and polymerizing into nylon 6, wherein the L-lysine is derived from the biomass. In other embodiments, the present invention can include methods of making nylon 6. The methods can comprise synthesizing ?-caprolactam and then polymerizing, wherein the ?-caprolactam is derived from L-lysine.Type: ApplicationFiled: July 1, 2011Publication date: June 7, 2012Applicant: Board of Trustees of Michigan State UniversityInventor: John W. Frost
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Publication number: 20120141791Abstract: The present invention relates to a novel process for the anionic polymerization of lactam monomers.Type: ApplicationFiled: December 1, 2011Publication date: June 7, 2012Applicant: BASF SEInventors: Silke Biedasek, Philippe Desbois, Mohammed Abboud, Andreas Wollny
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Publication number: 20120123041Abstract: A polyamide, a method for manufacturing the polyamide and compositions that include the polymer are described. A high-viscosity polyamide obtained by the polymerization of diacid and diamine monomers in the presence of multifunctional and, optionally, monofunctional compounds are also described. The polyamide can be used in particular for the production of compositions intended, for example, for being molded or blown.Type: ApplicationFiled: June 4, 2010Publication date: May 17, 2012Applicant: Rhodia OperationsInventors: Damien Zaher, Cesare Guaita
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Publication number: 20120101251Abstract: Biaxially-oriented nylon film according to the present invention is biaxially-oriented nylon film made from nylon. In the biaxially-oriented nylon film, an elongation ratio of the film in each of four directions (an MD direction, a TD direction, a 45 degree direction and a 135 degree direction) until a film rupture is 70 percent or more, the elongation ratio being measured in a tensile test (testing conditions: a sample width is 15 mm; a distance between gauge points is 50 mm; and a tensile speed is 100 mm/min), and a stress ratio A (?1/?2) between a tensile stress ?1 and a tensile stress ?2 in a stress-strain curve obtained in the tensile test of the film is 2 or more in each of the four directions, the tensile stress ?1 being a value at a point where the elongation ratio becomes 50 percent while the tensile stress ?2 being a value at an yield point.Type: ApplicationFiled: December 28, 2011Publication date: April 26, 2012Inventor: Masao TAKASHIGE
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Publication number: 20120088899Abstract: A process for producing an activated monomer composition comprising at least one lactam and/or lactone, one catalyst, and one activator permits storage of the resultant monomer composition, since this is stable with respect to polymerization. Said monomer composition is used inter alia in producing a polyamide molding via ring-opening, anionic polymerization.Type: ApplicationFiled: October 7, 2011Publication date: April 12, 2012Applicant: BASF SEInventors: Dietrich Scherzer, Philippe Desbois, Volker Warzelhan, Andreas Wollny, Andreas Radtke, Axel Wilms, Martin Klatt
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Publication number: 20120088048Abstract: The present invention relates to binders for the preforming process to which textile structures are subjected when structural materials are produced by the RIM or RTM method, where the binder composed of an amorphous polyimide is spray applied in a solvent onto the textile structure or onto the textile, and is used as binder for the preforming process. The present invention further relates to a process for producing moldings made of fiber-reinforced composite materials.Type: ApplicationFiled: October 6, 2011Publication date: April 12, 2012Applicant: BASF SEInventors: Dietrich Scherzer, Philippe Desbois, Uwe Gleiter, Martin Weber, Michael Gall
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Patent number: 8124686Abstract: The present invention relates to a process for the preparation of polyamide-12 powder by anionic polymerization of lauryllactam in solution in a solvent of the lactam, the polyamide-12 powder being insoluble in this solvent, the polymerization being carried out: in the presence of a catalyst and of an activator; in the presence of a finely divided organic or inorganic filler, the proportion of this filler being less than or equal to 1.5 g per 1000 g of lauryllactam; and in the presence of an amide of formula R1—NH—CO—R2 in which R1 can be replaced by an R3—CO—NH— or R3—O— radical and in which R1, R2 and R3 denote an aryl, alkyl or cycloalkyl radical, the proportion of this compound being between 0.001 mol and 0.030 mol per 1000 g of lauryllactam.Type: GrantFiled: March 2, 2005Date of Patent: February 28, 2012Assignee: Arkema FranceInventors: Karine Loyen, Holger Senff, Francois-Xavier Pauly
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Patent number: 8080630Abstract: The invention relates to a process for preparing a melt-processable polylactam by contacting caprolactam monomer with an anionic polymerization catalyst, polymerizing said monomer and contacting the resulting polylactam with a protic compound. The anionic polymerization catalyst is chosen from the group consisting of alkali-earth-metal-lactamates and alkali-earth-metal-lactamate forming compounds and the protic compound has a pKa larger than 14. The resulting polylactam has a good melt-stability and very low cyclic dimer content.Type: GrantFiled: February 11, 2004Date of Patent: December 20, 2011Assignee: DSM IP Assets B.V.Inventors: Albert A Van Geenen, Cornelia E. M. Bronsaer, Yvonne H Frentzen, Stanislaus M. P. Mutsers, Nicolaas J. M. L. Janssen
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Publication number: 20110257358Abstract: The invention relates to a method for preparing ?-caprolactam comprising deacylating N-acyl-6-aminocaproic acid and forming ?-caprolactam. The deacylation may be carried out chemically or biocatalytically. The invention further relates to a host cell, comprising a recombinant vector comprising a nucleic acid sequence encoding an enzyme capable of catalysing the formation of 6-aminocaproic acid from N-acyl-6-aminocaproic acid.Type: ApplicationFiled: October 9, 2009Publication date: October 20, 2011Inventors: Daniel Mink, Rudolf Philippus Maria Guit, Monika Muller, Petronella Catharina Raemakers-Franken
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Publication number: 20110213117Abstract: Disclosed are new organic semiconducting polymers. The polymers disclosed herein can exhibit high carrier mobility and/or efficient light absorption/emission characteristics, and can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions.Type: ApplicationFiled: November 6, 2009Publication date: September 1, 2011Applicants: Polyera Corporation, BASF SEInventor: Antonio Facchetti
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Publication number: 20110189419Abstract: The invention relates to a polyamide comprising at least two units having the following general formula: 4.Y in which: 4 denotes butanediamine, and Y represents a dicarboxylic acid chosen from a linear or branched aliphatic dicarboxylic acid, a cycloaliphatic diacid and an aromatic diacid, the dicarboxylic acid containing from 7 to 11 carbon atoms, the butanediamine contains carbon of renewable origin, except for the fact that when the polyamide is a copolyamide, it cannot contain 100% by mass of organic carbon derived from renewable raw materials relative to the total mass of polyamide carbon. The invention also relates to a composition comprising this polyamide and the use of this polyamide and of such a composition.Type: ApplicationFiled: July 6, 2009Publication date: August 4, 2011Applicant: ARKEMA FRANCEInventors: Guillaume Le, Julien Jouanneau, Thierry Briffaud