Ester Patents (Class 524/51)
  • Patent number: 10342886
    Abstract: A wax melt blank is produced with an extrusion process and intended to later be cut to length into individual wax melts. The wax melt blank includes at least about fifty percent by weight of wax, a fragrance, and up to about fifty percent by weight of a filler. The wax, the fragrance, and the filler are homogeneously dispersed within the wax melt blank.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: July 9, 2019
    Assignee: S.C. JOHNSON & SON, INC.
    Inventors: Michael J. Banco, Michael J. Fischer
  • Patent number: 9328239
    Abstract: Compositions of polymer blends of polylactic acid (PLA) and polyhydroxyalkanoate are described. In certain embodiments, the PHA is a multiphase copolymer blend having one phase a fully amorphous phase with a glass transition temperature of below 20° C. and is between about 5 to about 45% of the total PHA. Methods of making the compositions of the invention are also described. The invention also includes articles, films and laminates comprising the compositions.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: May 3, 2016
    Assignee: Metabolix, Inc.
    Inventor: Rajendra K. Krishnaswamy
  • Publication number: 20150090156
    Abstract: The adhesive compositions that include starch derivatives, plasticizers, optionally cellulose derivatives, and optionally other additives. By tailoring the composition and concentration of these components, hot melt adhesive compositions, hot melt pressure sensitive adhesive compositions, and pressure sensitive adhesives have been produced. Further, these adhesive compositions may be useful in articles including diapers, laminates, repositionable advertisements, and many more.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Applicant: Celanese Acetate LLC
    Inventors: Michael Combs, Wendy Bisset, Lizbeth Milward, Mehrsa Raeiszadeh
  • Publication number: 20150056461
    Abstract: A film formed from a water-soluble polymer matrix containing a fragrance is provided. The film is water-sensitive so that upon contact with a sufficient amount of water, the matrix loses its integrity to increasingly expose the fragrance to the ambient environment for releasing its odor. The ability to incorporate a fragrance into the matrix is achieved by controlling the nature of the fragrance and polymer, the manner in which the matrix and fragrance are melt processed, etc. For example, the fragrance may be injected directly into the extruder and melt blended with the polymer to avoid the costly, time-consuming steps of pre-encapsulation or pre-compounding of the fragrance into a masterbatch. Furthermore, to balance the fragrance's ability to release the desired odor during use while minimizing the premature exhaustion of the odor during processing, the fragrance has a boiling point (at atmospheric pressure) of from about 125° C. to about 350° C.
    Type: Application
    Filed: October 30, 2014
    Publication date: February 26, 2015
    Inventors: Sarah A. Funk, James Hongxue Wang
  • Publication number: 20150045480
    Abstract: An exemplary embodiment of the present invention provides starch-based hot melt adhesive comprised of a composition including starch, a thermoplastic polymer, a tackifier, a plasticizer, and an adhesion promoter. The hot melt adhesive according to the exemplary embodiment of the present invention contains about 25 to 55 weight % of the starch which is infinitely renewable biomass, and, thus, it is less harmful and more eco-friendly and has a reduced manufacturing costs and is less sensitive to exhaustion of petroleum-based resources, as compared with the conventional hot melt adhesive mainly containing a petroleum-based material. Further, the hot melt adhesive according to the exemplary embodiment of the present invention imparts excellent adhesion strength and workability at the time of adhesion between different kinds of adherends such as a hydrophobic adherend and a hydrophilic adherend and can be applied to various fields such as packaging, bookbinding, construction, woodworking, and textile fields.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 12, 2015
    Applicant: DAESANG CORPORATION
    Inventors: Young Seong Jeon, Se Na Lee, Jee Young Yoon, Jun Soo Lee, Ssang Ok Kim
  • Patent number: 8829107
    Abstract: The present invention generally relates to a method for the production of a superabsorbent composition comprising the process steps: i. production of a hydrogel by radical polymerization of an aqueous monomer solution containing at least one monomer ii. drying the hydrogel to obtain a water-absorbing polymer structure iii. surface crosslinking of the water-absorbing polymer structure to obtain a surface-crosslinked water-absorbing polymer structure, and iv. incorporating a starch compound into the method. The present invention also relates to a superabsorbent composition obtainable according to this method, a particulate superabsorbent composition and a composite, a sanitary article core and a sanitary item, furthermore chemical products and also the use of this superabsorbent composition in chemical products.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: September 9, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Franck Furno, Harald Schmidt, Nicolaas De Bruin
  • Patent number: 8795745
    Abstract: A thermoplastic or elastomeric composition, is characterized in that: a) it exhibits a degree of biodegradability of less than 50%, preferably less than 30%, and b) it contains at least 0.5% and at most 99.95% by weight of an ester of a starchy material, which has a degree of ester substitution (DS) of between 1.6 and 3, and at least 0.05% by weight and at most 99.5% by weight of a polymer other than starch.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: August 5, 2014
    Assignee: Roquette Freres
    Inventors: Leon Mentink, Jacques Tripier
  • Patent number: 8759427
    Abstract: Molded articles formed from compositions comprising thermoplastic starch, thermoplastic polymers, and oils, waxes, or combinations thereof are disclosed, where the oil, wax, or combination is dispersed throughout the thermoplastic polymer.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: June 24, 2014
    Assignee: The Procter & Gamble Company
    Inventors: Eric Bryan Bond, William Maxwell Allen, Isao Noda
  • Patent number: 8759279
    Abstract: A film formed from a biodegradable polymer matrix within which is contained at least one fragrance is provided. The ability to incorporate a fragrance into the polymer matrix is achieved in the present invention by controlling a variety of aspects of the film construction, including the nature of the fragrance, the nature of the biodegradable polymer, the manner in which the polymer matrix and fragrance are melt processed, etc. For example, the fragrance may be injected directly into the extruder and melt blended with the biodegradable polymer. In this manner, the costly and time-consuming steps of pre-encapsulation or pre-compounding of the fragrance into a masterbatch are not required. Furthermore, to obtain a balance between the ability of the fragrance to release the desired odor during use and likewise to minimize the premature exhaustion of the odor during melt processing, the fragrance is selected to have a boiling point (at atmospheric pressure) within a certain range, such as from about 125° C.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: June 24, 2014
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Sara A. Funk, James H. Wang
  • Patent number: 8691003
    Abstract: An indicator is useful for detecting pressure points on a denture. The indicator is made of a composition that easily adheres to oral mucosa, has a proper viscosity in an oral cavity environment, can be properly spread between an oral mucosa surface and a denture base, and easily specifies an affected part. The composition includes a fatty acid ester having a melting point of 30 to 50° C., a water-soluble high polymer, and a metal oxide. Preferably, the fatty acid is 40 to 95% by weight of the composition, the water-soluble high polymer is 1 to 59% by weight of the composition, and the metal oxide is 0.1 to 50% by weight of the composition.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 8, 2014
    Assignee: GC Corporation
    Inventors: Yutaka Shinozaki, Hiroshi Kamohara
  • Publication number: 20140079935
    Abstract: A biodegradable, polyolefin-based material composition having incorporated therein thermoplastic starch particles is described. The material includes from about 5% to about 45% of a thermoplastic starch (TPS), from about 55% to about 95% of a polyolefin or mixtures of polyolefins, at least 9% of a compatibilizer and has a bio-based content of 5%-97% using ASTM D6866-10, method B.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 20, 2014
    Applicant: THE PROCTER & GAMBLE COMPANY
    Inventor: Norman Scott Broyles
  • Publication number: 20130338271
    Abstract: The present disclosure relates to a degradable material comprising (a) from about 60 weight percent to about 97 weight percent of a first material based on the total weight of the degradable material, and (b) from about 3 weight percent to about 40 weight percent of a second material based on the total weight of the degradable material, where the second material is an oligomer comprising lactate and giycolate. In another aspect, the present disclosure provides a degradable material comprising (a) poly lactic acid, and (b) an oligomer comprising lactate and giycolate, wherein the degradable material has a Tg less than 56° C. In still another aspect, the present disclosure provides a degradable material comprising (a) poly lactic acid, and (b) an oligomer comprising lactate and giycolate, wherein the degradable material has a tan delta peak of less than 65° C.
    Type: Application
    Filed: December 8, 2011
    Publication date: December 19, 2013
    Applicant: 3M Innovative Properties Company
    Inventors: Michael D. Crandall, Rudolf J. Dams, Michelle M. Hewitt, Ignatius A. Kadoma, Siegmund Papp, Yong K. Wu, Jay M. Jennen, Sasha B. Myers
  • Patent number: 8598404
    Abstract: A film that is biodegradable and water-sensitive (e.g., water-soluble, water-dispersible, etc.) in that it loses its integrity over time in the presence of water is provided. The film contains a biodegradable polyester, starch, water-soluble polymer, and plasticizer. The desired water-sensitive attributes of film may be achieved in the present invention by selectively controlling a variety of aspects of the film construction, such as the nature of the components employed, the relative amount of each component, the manner in which the film is formed, and so forth.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 3, 2013
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: James H. Wang, Bo Shi
  • Publication number: 20130158169
    Abstract: Molded articles formed from compositions comprising thermoplastic starch, thermoplastic polymers, and oils, waxes, or combinations thereof are disclosed, where the oil, wax, or combination is dispersed throughout the thermoplastic polymer.
    Type: Application
    Filed: May 17, 2012
    Publication date: June 20, 2013
    Inventors: Eric Bryan Bond, William Maxwell Allen, Isao Noda
  • Publication number: 20130096236
    Abstract: The present invention relates to a novel thermoplastic composition, characterized in that it contains: a) 15% to 60% of at least one starchy material; b) 10% to 30% of at least one starchy material plasticizer; c) 15% to 70% of at least one polyolefin; and d) 10% to 40% of at least one plant material selected among plant fibers and plant fillers. The invention also relates to a thermoplastic composition preparation method that includes the following steps: (i) selecting at least one composition (a) containing at least one starchy material, one plasticizer of said starchy material, and one polyolefin; (ii) selecting at least one plant material (b) selected among plant fibers and plant fillers, said plant material being formed of particles, the dimensions of which are between 0.5 and 5000 micrometers; and (iii) mixing the composition (a) and the plant material (b) so as to obtain the thermoplastic composition according to the invention.
    Type: Application
    Filed: March 24, 2011
    Publication date: April 18, 2013
    Applicant: ROQUETTE FRERES
    Inventors: Joel Bernaerts, Laurie Coudyser, Leon Mentink, Didier Beaudoux, Bernard Constant
  • Patent number: 8410200
    Abstract: A polymer composition and its use for thin film packaging applications including on a dry basis: a) from 45 to 90% by weight of starch; b) from 0.1 to 15% by weight of a water soluble polymer selected from polyvinyl alcohol, polyvinylacetate, and copolymers of ethylene and vinyl alcohol which have a melting point compatible with the molten state of the starch component; and c) from 5 to 45% by weight of one or more plasticizers having a molecular weight in the range of 50-6000, more preferably 50-2500 and more preferably still 100-400 and desirably selected from the group consisting of sorbitol, glycerol, maltitol, xylitol, mannitol, erythritol, glycerol trioleate, tributyl citrate, acetyl tri-ethyl citrate, glyceryl triacetate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, polyethylene oxide, ethylene glycol, diethylene glycol or polyethylene glycol.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: April 2, 2013
    Assignee: Plantic Technologies Limited
    Inventors: Nicholas R. Oakley, Nicholas J. McCaffrey, Kishan C. Khemani
  • Publication number: 20130052901
    Abstract: Compositions comprising thermoplastic starch, thermoplastic polymers, and oils, waxes, or combinations thereof are disclosed, where the oil, wax, or combination is dispersed throughout the thermoplastic polymer. Also disclosed are methods of making these compositions.
    Type: Application
    Filed: May 17, 2012
    Publication date: February 28, 2013
    Inventors: Eric Bryan Bond, William Maxwell Allen, Donald Stuart Murray, Isao Noda
  • Patent number: 8382936
    Abstract: Adhesives particularly useful for industrial bottle labeling are provided. The adhesives comprise at least one starch component and at least one protein component (which is not gelatin or casein). The adhesive is also free of synthetic polymer. The label, along with the adhesive, can be easily removed from the bottle during the recycling process. In one embodiment, the starch component does not contain leguminous starch having an amylose content of 25% or more. In another embodiment, the adhesive comprises a crosslinking agent.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: February 26, 2013
    Assignee: Henkel AG & Co. KGaA
    Inventors: Stefan Alevisopoulos, Edward W. Day
  • Publication number: 20130011593
    Abstract: A film that is biodegradable and water-sensitive (e.g., water-soluble, water-dispersible, etc.) in that it loses its integrity over time in the presence of water is provided. The film contains a biodegradable polyester, starch, water-soluble polymer, and plasticizer. The desired water-sensitive attributes of film may be achieved in the present invention by selectively controlling a variety of aspects of the film construction, such as the nature of the components employed, the relative amount of each component, the manner in which the film is formed, and so forth.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: James H. Wang, Bo Shi
  • Patent number: 8349921
    Abstract: The present invention relates to films made from mixed cellulose esters having low hydroxyl content and certain plasticizers. These films can exhibit +C plate, ?A plate, and biaxial Nz behavior, which make them particularly suitable for use in optical applications, such as in liquid crystal displays (LCD) as protective and compensator films.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: January 8, 2013
    Assignee: Eastman Chemical Company
    Inventors: Bin Wang, Michael Eugene Donelson, Marcus David Shelby, James Collins Maine
  • Patent number: 8329893
    Abstract: The present invention relates to cellulose esters having low hydroxyl content for use in optical applications, such as liquid crystal display (LCD) films. Films made with low hydroxyl levels and a given ratio of non-acetyl ester to hydroxyl level have been found to have low intrinsic birefringence. Therefore, these films can be cast, molded, or otherwise oriented without an appreciable birefringence or optical distortion (i.e. retardation). Such features make these films useful in polarizer, protective, and compensator films as well as molded optical parts, such as lenses. Furthermore, it has also been found that resins of the present invention can also be made to have “+C plate” behavior either by melt or solvent based processing, a characteristic which is not typical of cellulose esters. Such +C behavior allows films to be produced having unique compensatory behavior. Other embodiments of the invention relate to methods melt casting films while minimizing birefringence formation.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: December 11, 2012
    Assignee: Eastman Chemical Company
    Inventors: Marcus David Shelby, Michael Eugene Donelson, Bradley Howard Dayvolt, Alan Kent Wilson, Bryan Kirkman
  • Patent number: 8277554
    Abstract: The invention relates to a hot melt adhesive, comprising at least one polysaccharide ester gained by a reaction of a polysaccharide with an imidazolide in melted imidazole. The invention relates, further, to a process for producing the hot melt adhesive, in which imidazole is melted, and an acid chloride and/or an acid anhydride and/or a lactone is reacted in and with the melted imidazole to form an imidazolide, whereby at least one polysaccharide is added to the melted imidazole, whereby the polysaccharide is reacted with the imidazolide to form a polysaccharide ester.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: October 2, 2012
    Assignees: Innovent e.V., Friedrich-Schiller-Universitat
    Inventors: Bernd Grünler, Andreas Heft, Marion Homuth, Thomas Heinze, Tim Liebert
  • Publication number: 20120220698
    Abstract: Biodegradable aliphatic/aromatic copolyester comprising: A) an acid component comprising repeating units of: 1) 49 to 63 mol % of an aromatic carboxylic acid; 2) 51 to 37 mol % of an carboxylic acid, at least 50% of which is brassylic acid; B) a diol component; said copolyester being disintegrated according to the Standard ISO 20200 in 90 days.
    Type: Application
    Filed: May 7, 2012
    Publication date: August 30, 2012
    Applicant: Novamont S.p.A.
    Inventors: Catia Bastioli, Tiziana Milizia, Giovanni Floridi, Andrea Scaffidi Lallaro, Giandomenico Cella, Maurizio Tosin
  • Patent number: 8246738
    Abstract: Starch(es) and starch derivatives are combined together with at least one high-viscosity cellulose as a thickener in dispersion binder-based color systems. The cellulose has a viscosity of >50,000 mPa·s, measured by the Brookfield rotation viscometer as a 2% swollen aqueous solution at 5 rpm and 25° C. A method produces dispersion binder-based color systems and a dispersion color thickener combination and a dispersion color containing the dispersion color thickener combination.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: August 21, 2012
    Assignee: Agrana Staerke GmbH
    Inventors: Franz Jetzinger, Martin Kozich, Marnik Michel Wastyn
  • Publication number: 20120208897
    Abstract: The present invention relates to a continuous method for preparing acetylated derivatives of an amylaceous material. The invention also relates to a solid composition of at least one acetylated derivative of an amylaceous material obtained by means of said method. The invention finally relates to the use of such a composition to prepare thermoplastic, elastomeric, adhesive, pharmaceutical and/or ink compositions.
    Type: Application
    Filed: October 11, 2010
    Publication date: August 16, 2012
    Applicant: ROQUETTE FRERES
    Inventor: Claude Quettier
  • Publication number: 20120208928
    Abstract: The invention relates to a biodegradable polymer composition comprising the following components (a)-(d) and/or a reaction product(s) derived from melt mixing the components: (a) polyalkylene carbonate; (b) thermoplastic starch (TPS) and/or its constituent components; (c) polymer having pendant carboxylic acid groups; and (d) transesterification catalyst.
    Type: Application
    Filed: August 26, 2010
    Publication date: August 16, 2012
    Applicant: CO2Starch Pty Ltd.
    Inventors: Changping Chen, John Scheirs
  • Publication number: 20120009387
    Abstract: A biodegradable, polyolefin-based material composition having incorporated therein thermoplastic starch particles is described. The material includes from about 5% to about 45% of a thermoplastic starch (TPS), from about 55% to about 95% of a polyolefin or mixtures of polyolefins, and from about 0.5% to about 8% of a compatibilizer, which has a non-polar backbone and a polar functional monomer or a block copolymer of both the non-polar block and a polar block. A method of forming a film and packaging assemblies made with the polymeric material are also described.
    Type: Application
    Filed: August 17, 2011
    Publication date: January 12, 2012
    Inventors: James H. Wang, Peter M. Clark, Yiwu Guan, Yan Wang, Xueen George Hao, Tong-tong Zhang
  • Publication number: 20110237710
    Abstract: The present invention relates to aqueous dispersions of at least one biodegradable polymer comprising an organic phase dispersed in a dispersing aqueous phase and free of volatile organic compounds, characterized in that the said organic phase comprises at least one viscosity-reducing agent with a solubility parameter of between 15 and 28 (J.cm?3)0.5, preferably between 16 and 23 (J.cm?3)0.5 and even more preferably between 18 and 21 (J.cm?3)0.5, and a hydrogen bonding parameter ?H of between 3.5 and 15 (J.cm?3)0.5, preferably between 4 and 13 (J.cm?3)0.5 and even more preferably between 5 and 10 (J.cm?3)0.5, and at least one biodegradable polymer in a polymer/viscosity-reducing agent weight ratio of from 99.8/0.2 to 60/40, preferably between 97/3 and 70/30 and more preferably between 92/8 and 70/30.
    Type: Application
    Filed: April 18, 2011
    Publication date: September 29, 2011
    Applicant: ROQUETTE FRERES
    Inventors: Michel SERPELLONI, Léon MENTINK, Joël BERNAERTS
  • Publication number: 20110196071
    Abstract: An elastomeric composition, contains:—at least 5% and at most 70% by weight of an ester of a starchy material, which has a degree of ester substitution (DS) of between 1.0 and 3.0, preferably between 1.2 and 3.0,—at least 5% and at most 40% by weight of a plasticizer of this ester of starchy material, the plasticizer preferably being other than water, and—at least 25% by weight and at most 90% by weight of an elastomeric non-starch polymer.
    Type: Application
    Filed: October 13, 2009
    Publication date: August 11, 2011
    Applicant: ROQUETTE FRERES
    Inventors: Leon Mentink, Jacques Tripier
  • Publication number: 20110195148
    Abstract: A thermoplastic or elastomeric composition, is characterized in that: a) it exhibits a degree of biodegradability of less than 50%, preferably less than 30%, and b) it contains at least 0.5% and at most 99.95% by weight of an ester of a starchy material, which has a degree of ester substitution (DS) of between 1.6 and 3, and at least 0.05% by weight and at most 99.5% by weight of a polymer other than starch.
    Type: Application
    Filed: October 13, 2009
    Publication date: August 11, 2011
    Applicant: ROQUETTE FRERES
    Inventors: Leon Mentink, Jacques Tripier
  • Publication number: 20110124778
    Abstract: An abradant-containing eraser is disclosed which comprises an elastomer composition containing a matrix of a biomass plastic and crosslinked natural rubber particles dispersed like islands in the matrix of the biomass plastic, and an abradant. According to the present invention, it is possible to provide an abradant-containing eraser using an elastomer composition, which can be recycled, is friendly to the environment, and corresponds to the recycling society, without relying on fossil resources.
    Type: Application
    Filed: July 22, 2009
    Publication date: May 26, 2011
    Applicant: SEED COMPANY LTD.
    Inventors: Kazuki Morimoto, Yasuhiro Nishioka
  • Publication number: 20110086949
    Abstract: A thermoplastic and/or elastomer composition includes: at least 50 wt % and 99.95 wt % at most of a starchy composition (a) including at least one starch; at least 0.05 wt % and 50 wt % at most of a nanometric product (b) including particles having at least one dimension of 0.1 to 500 nanometers and selected from mixed products containing at least one lamellar clay and at least one cationic oligomer or cationic synthetic polymer, organic, mineral or mixed nanotubes, organic, mineral or mixed nanocrystals and nanocrystallites, organic, mineral or mixed nanobeads and nanospheres customized into clusters or agglomerated, and mixtures of these nanometric products, the percentage being expressed in dry weight and added to the sum in dry weight of (a) and (b); and at least one non-starchy polymer (c).
    Type: Application
    Filed: June 12, 2009
    Publication date: April 14, 2011
    Applicant: ROQUETTE FRERES
    Inventors: Léon Mentink, Jérôme Gimenez, Didier Lagneaux
  • Publication number: 20110086950
    Abstract: The present invention relates to a method of preparing a biodegradable polymer composition, said method comprising melt mixing a first biodegradable polyester and a masterbatch, wherein said masterbatch has been formed separately by melt mixing in the presence of a transesterification catalyst a polysaccharide, a second biodegradable polyester and a biodegradable polymer having pendant carboxylic acid groups.
    Type: Application
    Filed: December 17, 2010
    Publication date: April 14, 2011
    Applicant: BIOGRADE (HONG KONG) PTY LTD.
    Inventor: Chen CHANGPING
  • Patent number: 7879440
    Abstract: A polylactic acid resin film or sheet which can be satisfactorily and stably formed and has excellent matte properties. It is a single-layer matte film or sheet which comprises a polylactic acid resin composition containing a particulate substance and at least one side of which has a surface gloss as measured in accordance with ASTM-D2457-70 (45° gloss) of 60% or lower.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: February 1, 2011
    Assignee: Asahi Kasei Life & Living Corporation
    Inventors: Michihiro Yatsuzuka, Masayuki Sukigara, Mitsuyoshi Itada
  • Patent number: 7854994
    Abstract: A barrier composition which is injection mouldable and able to be made into a transparent film or incorporated (by co-extrusion and/or lamination) into multi-layer film products, the composition on dry basis: a) from 45 to 90% by weight of a starch and/or a modified starch selected from starches modified by reaction with a hydroxyl alkyl group, an acetate or a dicarboxylic acid anhydride or a grafting polymer; b) from 4 to 12% by weight of a water soluble polymer selected from polyvinyl alcohol, polyvinylacetate, and copolymers of ethylene and vinylalcohol which have a melting point compatible with the molten state of the starch components c) from 5 to 45% by weight of a non-crystallising mixture of sorbitol and at least one other plasticizer selected from glycerol, maltitol, xylitol, mannitol, glycerol trioleate, epoxidised linseed or soybean oil, tributyl citrate, acetyl tri-ethyl citrate, glyceryl triacetate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate; polyethylene oxide or polyethylene glycol; d) from
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: December 21, 2010
    Assignee: Plantic Technologies Ltd.
    Inventors: Rulande Henderson-Rutgers, Mark Fink, Nicholas Roy Oakley
  • Patent number: 7838592
    Abstract: There is provided a starch-based coating composition with excellent storage stability as a one-pack type paint, which can form coating films with excellent drying property, finished appearances, pencil hardness, mar resistance, adhesion, alkali resistance, solvent resistance and weather resistance, as well as coated articles that have been coated with the starch-based coating composition. The starch-based coating composition comprises as the binder a resin composition obtained by reacting (A) starch and/or modified starch with (B) an isocyanate group-containing compound obtained by reacting a polyisocyanate compound (b1) and a polyhydric alcohol (b2), or by reaction of these components with a resin obtained by radical polymerization of a mixture comprising an aromatic-based radical polymerizing unsaturated monomer, a hydroxyl group-containing radical polymerizing unsaturated monomer and optionally another radical polymerizing unsaturated monomer.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: November 23, 2010
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Chikara Kawamura, Kenichi Umezawa
  • Patent number: 7709592
    Abstract: Processes for preparing polyestercarbonates are disclosed. The processes allow for the consistent incorporation of adipic acid into a polymer generated from a dihydroxy compound, such as bisphenol-A, at levels greater than 99%. The polyestercarbonates so produced, as well as articles formed from the polyestercarbonates, are also disclosed herein.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: May 4, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventor: James Alan Mahood
  • Patent number: 7662258
    Abstract: Provided is thermosetting urea-formaldehyde (UF) resin binder formulation, preferably prepared with modified styrene-maleic anhydride. The formulation has a viscosity in the range of from 3 to 10 cP and a surface tension of from 35 to 50 mN/m, and is prepared using a UF resin composition exhibiting a viscosity of from 175 to 250 cP.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: February 16, 2010
    Assignee: Johns Manville
    Inventors: Souvik Nandi, Guodong Zheng, Jawed Asrar, Philip Francis Miele
  • Patent number: 7642301
    Abstract: Disclosed are poly(hydroxyalkanoic acid) compositions comprising a poly(hydroxyalkanoic acid), an ethylene ester copolymer, and an aliphatic carboxylic acid amide.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: January 5, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Julius Uradnisheck
  • Patent number: 7553919
    Abstract: A new starch-vegetable oil graft copolymer, wherein the vegetable oil has been reacted onto the starch backbone using thermal or free radical initiators has been produced in a twin-screw co-rotating extruder. The starch-vegetable oil graft copolymer can further be reinforced with biofiber in the presence of an optional modifier such as maleic anhydride by reactive extrusion processing to form composites suitable to be injection molded into biodegradable articles.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: June 30, 2009
    Assignee: Board of Trustees of Michigan State University
    Inventors: Ramani Narayan, Sunder Balakrishnan, Boo-Young Shin
  • Patent number: 7517924
    Abstract: According to the present invention there is provided a composition as obtained from a melt comprising esterified starch, preferably having a degree of substitution of at least about 1.5, and preferably an amylose content of at least about 50% by weight with respect to that of the starch, and a linear polyester. The invention further provides the composition in the form of a melt or when shaped into articles.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: April 14, 2009
    Assignee: Japan Corn Starch Co., Ltd.
    Inventors: Stephen Rimsa, Paul Tatarka
  • Publication number: 20090005472
    Abstract: Biodegradable aliphatic/aromatic copolyester comprising: A) an acid component comprising repeating units of: 1) 53 to 54 mol % of an aromatic carboxylic acid; 2) 47 to 36 mol % of an aliphatic acid at least 50% of which is azelaic acid ; B) a diol component selected from the group consisting of C3, C4 and C6 diols; said AAPE being disintegrated according to the Standard ISO 20200 in 90 days.
    Type: Application
    Filed: March 17, 2006
    Publication date: January 1, 2009
    Applicant: NOVAMONT S.P.A.
    Inventors: Catia Bastioli, Tiziana Milizia, Giovanni Floridi, Andrea Scaffidi Lallaro, Giandomenico Cella, Maurizio Tosin
  • Patent number: 7393905
    Abstract: Method for crosslinking a carboxylated polymer using a triazine crosslinking activator, method for crosslinking a mixture of first and second carboxylated polymers a triazine crosslinking activator, a crosslinked carboxylated polymer having ionic crosslinks, and a composition comprising first and second carboxylated polymers treated with an amount of an amine compound to form plurality of amide bonds
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: July 1, 2008
    Assignee: Weyerhaeuser Company
    Inventor: S. Ananda Weerawarna
  • Patent number: 7300965
    Abstract: A mixed polymer network made from reacting a carboxyalkyl cellulose and a synthetic water-soluble polymer with a crosslinking agent.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: November 27, 2007
    Assignee: Weyerhaeuser Company
    Inventors: S. Ananda Weerawarna, Carole W. Herriott, Richard A. Jewell, Mengkui Luo, Amar N. Neogi
  • Patent number: 7091264
    Abstract: A method for improving the feel and rebound velocity of a golf ball, the method comprising preparing a golf ball from a rubber composition that comprises a rubber, from about 3 to about 12 parts by weight of a processing additive per 100 parts by weight rubber, from about 18 to about 32 parts by weight of a multi-functional crosslinking agent per 100 parts by weight rubber, from about 0.2 to about 1.0 parts by weight of a cure initiator per 100 parts by weight rubber, from about 0 to about 25 parts by weight zinc oxide per 100 parts by weight rubber, and from about 0 to about 0.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: August 15, 2006
    Assignee: Firestone Polymers, LLC
    Inventors: Daniel F Graves, Mitch Barry
  • Patent number: 7056377
    Abstract: A starch with a high content in amylose, obtained through a process comprising acetylation and pre-gellation, can provide useful coatings in food, drug, cosmetic and dietetic fields, both for humans and animals, and also in agriculture.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: June 6, 2006
    Assignee: F.T. Holdings S.A.
    Inventor: Francesco Roversi
  • Patent number: 6946506
    Abstract: Environmentally degradable finely attenuated fibers produced by melt spinning a composition comprising destructurized starch, a biodegradable thermoplastic polymer, and a plasticizer are disclosed. The present invention is also directed to highly attenuated fibers containing thermoplastic polymer microfibrils which are formed within the starch matrix of the finely attenuated fiber. Nonwoven webs and disposable articles comprising the highly attenuated fibers are also disclosed.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: September 20, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Eric Bryan Bond, Jean-Philippe Marie Autran, Larry Neil Mackey, Isao Noda, Hugh Joseph O'Donnell
  • Patent number: 6844380
    Abstract: There is provided a method of preparing a thermoplastic starch and synthetic polymer blend, said method comprising the steps of: (a) providing a starch suspension comprising starch, water and a plasticizer, preferably glycerol; (b) obtaining a thermoplastic starch from the starch suspension by causing gelatinization and plasticization of said starch suspension by exerting heat and pressure on said starch suspension in a first extrusion unit; (c) evaporating and venting off residual water from said thermoplastic starch to obtain a substantially moisture-free thermoplastic starch; (d) obtaining a melt of a synthetic polymer or polymer blend in a second extrusion unit; and (e) combining the melt obtained from step (d) with the substantially moisture-free thermoplastic starch. Also provided are compositions of matter comprising immiscible blends of thermoplastic starches, polymers, and compatibilizers.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: January 18, 2005
    Assignee: Polyvalor, Societe en Commandite
    Inventors: Basil D. Favis, Francisco Rodriguez, Bruce A. Ramsay
  • Publication number: 20040242732
    Abstract: A biodegradable polymer is disclosed having the composition g) from 8 to 80% by weight of a starch modified to include an hydroxyalkyl C2-6 group or modified by reaction with an anhydride of a dicarboxylic acid, preferably hydroxypropylated high amylose starch, a) from 0 to 87.9% of starch, b) from 4 to 11% by weight of a water soluble polymer selected from polyvinylacetate, polyvinyl alcohol and copolymers of ethylene and vinylalcohol which have a melting point compatible with the molten stat of the starch components, c) from 0 to 20% by weight of a polyol plasticiser, preferably glycerol, d) from 0.1 to 1.5% by weight of a C12-22 fatty acid or salt, preferably stearic acid and, e) 0 to 12% added water. The polymers are suitable as biodegradable rigid sheet or flexible film materials for use in packaging foodstuffs.
    Type: Application
    Filed: March 22, 2004
    Publication date: December 2, 2004
    Applicant: Plantic Technologies, Ltd.
    Inventors: Long Yu, Stephen Coombs, Gregor Bruce Yeo Christie
  • Patent number: 6800593
    Abstract: Disclosed is a hydrophilic, water soluble polymer concentrate for addition to aqueous liquids to enhance the properties thereof, particularly to increase the viscosity or decrease the fluid loss of well drilling and servicing fluids, the concentrate comprising a hydrophobic, water insoluble liquid, an organophilic clay suspension agent, the water soluble polymer, and a stabilizing agent comprising one or more acids in an amount from about 0.001% to about 1.5%, one or more anionic surfactants in an amount from about 0.001% to about 1.0%, one or more nonionic surfactants in an amount from 0.001% to about 0.625% and, from about 0% to about 0.75% of one or more water soluble organic liquids, wherein the total concentration of the stabilizing agent is from about 0.1% to about 2.5%, these percentages being based on the weight of the concentrate.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: October 5, 2004
    Assignee: Texas United Chemical Company, LLC.
    Inventors: James W. Dobson, Jr., Shauna Leigh Hayden, Carolina Trejo Rangel