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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7960454 | Processing aids for elastomeric compositions The invention provides for processes to produce elastomeric compositions, the processes including contacting at least one elastomer with a processing aid, wherein the processing aid comprises at least one functionalized polymer having at least one anhydride group. T... | 06/14/2011 |
| 7393905 | Crosslinked mixed carboxylated polymer network 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 c... | 07/01/2008 |
| 7300965 | Mixed polymer network A mixed polymer network made from reacting a carboxyalkyl cellulose and a synthetic water-soluble polymer with a crosslinking agent. ... | 11/27/2007 |
| 7135063 | Resilient biodegradable packaging materials Biodegradable starch-based extruded products and methods of manufacturing those products are provided. In particular, extruded starch products processed by compression, stretching or compression and stretching provide excellent flexibility, pliability, dimensional s... | 11/14/2006 |
| 7071249 | Biodegradable starch resin and method for making same The present invention relates generally to biodegradable compositions containing starch, especially in combination with a polymer containing pendant carboxylic acid groups, a polyolefin homopolymer or copolymer, water, an oil component, and other optional components... | 07/04/2006 |
| 7037959 | Biodegradable polymer compositions methods for making same and articles therefrom A polymer composition includes a first component being a hydroxy-functional polymer, a second component being a natural polymer and a third component being a thermoplastic polyester. The first component, second component and third component are compounded to form a ... | 05/02/2006 |
| 7005168 | Starch-loaded polyvinyl alcohol copolymer film for packaging non-liquid product and method for making the same A water-soluble film for packaging a non-liquid product, a package employing the film, and methods of making the same, are disclosed. The film is made from a hydrolyzed copolymer of vinyl acetate and methyl acrylate in a range of from about 30 to about 95 percent by... | 02/28/2006 |
| 6933335 | Thermoplastic polymer blend produced from thermoplastic starch and method for the production thereof A thermoplastic polymer blend of a bi-continuous phase structure contains thermoplastic starch, at least one synthetic polymer, and a hydrolysis component on PVAc basis. The starch component of the polymer blend has a molecular weight which is only minimally reduced... | 08/23/2005 |
| 6844380 | Method of making polymer compositions containing thermoplastic starch 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 f... | 01/18/2005 |
| 6821590 | Starch-loaded polyvinyl alcohol copolymer film A water-soluble film for packaging a non-liquid product is disclosed. The film is made from a hydrolyzed copolymer of vinyl acetate and methyl acrylate in the range of from about 30 to about 95 percent by weight, modified starch in the range of from about 8 to about... | 11/23/2004 |
| 6800675 | Emulsion polymerization method The invention relates to starch, derived from amylopectin potatoes, which is preferably in a modified and/or derivatised form. Said starch is an especially advantages protective colloid for use in conducting emulsion polymerization reactions. The invention also rela... | 10/05/2004 |
| 6605657 | Polymer compositions containing thermoplastic starch 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 st... | 08/12/2003 |
| 6590013 | Hardener for use in-urea-formaldehyde and urea-melamine-formaldehyde based adhesives, an adhesive composition comprising said hardener and its use A hardener for use in urea-formaldehyde and urea-melamine-formaldehyde based adhesives comprises a polyvinyl acetate emulsion together with a metal chloride and an ammonium salt. The adhesive composition comprising a urea-formaldehyde or urea-melamine-for... | 07/08/2003 |
| 6512028 | Gel materials Methods of making gel materials are disclosed including mixing a water soluble crosslinkable matrix polymer, a particulate polymer material which has been crosslinked to a gel content of at least 55% and an aqueous solvent, and crosslinking the matrix pol... | 01/28/2003 |
| 6489392 | Foamed resin adhesive and the use thereof of glueing wood based panels and boards A foamed resin adhesive and its use for glueing wood based panels and boards such as plywood. The adhesive comprises 40-80% of an aqueous resin solution, 2-10% of an organic filler or fillers, 1-10% of a cationic acrylamide copolymer, and 0.05-1% of a sur... | 12/03/2002 |
| 6414055 | Method for preparing aqueous size composition There is disclosed a process for preparing an aqueous size composition by emulsifying a cellulose reactive size not solid at 25° C. into a starch stabilized aqueous polymer dispersion. The emulsification is carried out at a temperature substantially lowe... | 07/02/2002 |
| 6407225 | Compositions comprising hydroxy-functional polymers Compositions comprising a polysaccharide and a hydroxy-functional polyester are prepared by mixing the hydroxy-functional polyester and polysaccharide, modified polysaccharide or a naturally-occurring fiber or particulate filler and, optionally, other add... | 06/18/2002 |
| 6387991 | Poly(vinyl alcohol) copolymer ionomers, their preparation and use in textile sizes Compositions and textile sizes based on those compositions, which are particular poly(vinyl alcohol) copolymer ionomers, as well as blends of those ionomers with other sizing polymers are described. A process to prepare the ionomers is described. The comp... | 05/14/2002 |
| 6245838 | Method of suspension polymerization of (meth)acrylic monomers using dextrin, and polymer beads resulting from that method A method for aqueous bead-type suspension polymerization of (meth)acrylic monomers to prepare non-agglomerating, storage stable (meth)acrylic polymer beads which are extrudable at low temperatures. The invention also relates to the polymer beads and to th... | 06/12/2001 |
| 6103792 | Non-phenolic rubber tackifier A non-phenolic tackifier compound which includes starch and asphalt, and is substantially free of cross-linked fatty acids. Preferably, the tackifier compound further includes a hydrocarbon tackifying resin, and a binding resin composed of a styrene copol... | 08/15/2000 |
| 6080813 | Aqueous polymer dispersions Aqueous polymer dispersions containing polymers obtainable by free-radical polymerization of unsaturated monomers, and sugared starch, and the use thereof.... | 06/27/2000 |
| 5993530 | Aqueous dispersion of biodegradable resin composition A thermally-decomposable, biodegradable resin composition is dispersed and stabilized in water optionally along with additives to give an aqueous dispersion of the resin composition. In the dispersion, the base polymer consists substantially of a water-in... | 11/30/1999 |
| 5990227 | Ink set Disclosed herein is an ink-jet recording process which comprises applying a first liquid at least containing a water-soluble resin having at least one carboxyl group or anhydride thereof, or sulfonic group per molecule to a recording medium and then apply... | 11/23/1999 |
| 5861461 | Biodegradable plastic composition, method for preparing thereof and product prepared therefrom A plastic composition superior in both biodegradability and physical properties, comprises a matrix resin which is a blend of polyethylene and a biodegradable aliphatic polyester, starch, a coupling agent, a radical initiator, a starch plasticizer, a star... | 01/19/1999 |
| 5804618 | Adhesive for bonding decorative melamine treated paper to particle board Polyvinyl acetate emulsion based adhesives can be made effective for bonding melamine formaldehyde resin treated decorative solid color and print paper to particle board. This polyvinyl acetate emulsion based adhesive is formulated with tackified polyviny... | 09/08/1998 |
| 5777005 | Corrugating adhesives employing tapioca fiber Carrier-type corrugating adhesives are prepared using a carrier phase comprising a combination of tapioca fiber and corn fiber or tapioca fiber and spent germ flake as a substitute for modified or unmodified corn starch to provide an adhesive composition.... | 07/07/1998 |
| 5739244 | Polymer composition containing prime starch Prime starch is used in an extruder or injection molding machine to form a shaped article. The prime starch reduces the mechanical energy needed to form the shaped article compared to conventional dried starch. Examples of the resulting shaped article are... | 04/14/1998 |
| 5705563 | Aqueous polymer dispersions Aqueous polymer dispersions containing polymers obtainable by free-radical polymerization of unsaturated monomers, and sugared starch, and the use thereof.... | 01/06/1998 |
| 5656682 | Polymer composition comprising esterified starch and esterified cellulose According to the present invention there is provided a composition as obtained from a melt comprising a starch ester and a cellulose ester. The starch ester and cellulose ester may be of the kind obtained by reaction of a mixed acid anhydride with the pol... | 08/12/1997 |
| 5639333 | Method for preparing corrugated board with a fast setting starch-based corrugating adhesive having partially hydrolyzed water soluble polyvinyl alcohol component Corrugating adhesives free of incompatibility problems with water soluble partially hydrolized polyvinyl alcohol comprise a major portion of water, starch, strong base, a boric acid compound and a partially hydrolized water soluble polyvinyl alcohol compo... | 06/17/1997 |
| 5569692 | Biodegradable compositions and films or moulded articles obtained therefrom In order to prepare a starch-based composition usable for the production of articles of biodegradable plastics material, a starch is mixed in a heated extruder with a high-boiling plasticizer and a destructuring agent for a time sufficient to cause the st... | 10/29/1996 |
| 5565509 | Reinforced films made from water soluble polymers A dried film reinforced with coalescable water insoluble polymer particles which are substantially noncoalesced is disclosed. Also disclosed are dried films reinforced with noncoalesced water insoluble polymer particles which are readily water dispersible... | 10/15/1996 |
| 5536764 | Cationic starch/vinyl acetate containing board coating binders Board coating compositions are provided comprising a cationic starch and a vinyl acetate polymerization product as protein binder substitutes.... | 07/16/1996 |
| 5536779 | Aqueous polymer dispersions A polymer powder obtained by drying an aqueous polymer dispersion, wherein the aqueous polymer dispersion is obtained by free-radical polymerization of unsaturated monomers and contains at least one added starch-degradation product which is obtained by hy... | 07/16/1996 |
| 5508322 | Melt-processed polymer blends Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.... | 04/16/1996 |
| 5484825 | Dispersible articles The present invention is directed to a water-resistant, aqueous base-dispersible article which comprises a pulp-filled binder, one of which is an ethylenically unsaturated carboxylated (e.g. acrylic) polymer soluble in base, the other of which is water-re... | 01/16/1996 |
| 5480923 | Thermoplastically processible composition of starch acrylate copolymers A starch composition including destructurized starch, an acrylate copolymer having a molecular weight of more than 400,000, water, and additives such as plasticizers, lubricants, fillers, reinforcing agents, stabilizers, impact modifiers, and flame retard... | 01/02/1996 |
| 5462981 | Method of producing plasticized polyvinyl alcohol and its use for the preparation of starch-based, biodegradable thermoplastic compositions The method of producing plasticized polyvinyl alcohol by mixing polyvinyl alcohol in the presence of an organic plasticizer and water in a quantity which is insufficient to dissolve the polyvinyl alcohol under normal conditions, includes the steps of: i) ... | 10/31/1995 |
| 5454898 | Fast setting starch-based corrugating adhesive having partially hydrolized water soluble polyvinyl alcohol component Corrugating adhesives free of incompatibility problems with water soluble partially hydrolized polyvinyl alcohol comprise a major portion of water, starch, strong base, a boric acid compound and a partially hydrolized water soluble polyvinyl alcohol compo... | 10/03/1995 |
| 5447669 | Melt-processed polymer blends Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.... | 09/05/1995 |
