William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7968650 | Polymeric compositions comprising at least one volume excluding polymer The present invention relates to compositions comprising a polymeric substrate comprising at least one volume excluding polymer. In one embodiment, the present invention provides polymeric articles that are capable of acting as osmotic drivers. The articles are capa... | 06/28/2011 |
| 7838600 | Process for the preparation of amphiphilic poly(N-vinyl-2-pyrrolidone) block copolymers The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention c... | 11/23/2010 |
| 7435477 | Particulate water absorbent containing water absorbent resin as a main component A particulate water absorbent contains a water absorbent resin as a main component, the water absorbent resin being a crosslinked polymer of a water-soluble unsaturated monomer. The water absorbent resin is particular in shape and contains particles of a particle si... | 10/14/2008 |
| 7432330 | Hydrolytically stable maleimide-terminated polymers The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors. ... | 10/07/2008 |
| 7432331 | Hydrolytically stable maleimide-terminated polymers The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors. ... | 10/07/2008 |
| 7329635 | Crude oil composition including dispersant material for mitigating fouling of process equipment and method for mitigating crude oil fouling A crude oil composition wherein fouling has been mitigating and a method for mitigating crude oil fouling. The composition includes crude oil and an improved dispersant material for mitigating fouling which comprises a reaction product of a polyamine and a polyisobu... | 02/12/2008 |
| 7317058 | (Meth)acrylate polymer and non-linear optical device material composition A non-linear optical device composition includes a trifluorovinyl group containing poly(meth)acrylate that is crosslinkable and thermally stable after crosslinking. The poly(meth)acrylate composition may provide passive or active wave-guide optical capabilities. The... | 01/08/2008 |
| 7309751 | Norbornene compounds with cross-linkable groups and their derivatives The present invention provided a norbornene compound with cross-linkable groups and their derivative polymers, wherein said cross-linkable groups were olefin or epoxy groups. Norbornene polymers with cross-linkable side chain and their block copolymers as well as mo... | 12/18/2007 |
| 7294714 | Highly compatible hydroxyphenyltriazine UV-absorbers The present invention relates to highly compatible hydroxyphenyltriazine UV-absorbers and to their use in protecting plants in green houses and the protection of foodstuffs, beverages, pharmaceuticals, cosmetics, personal care products, shampoos and the like from th... | 11/13/2007 |
| 7285600 | Reagents for heat activated polymer crosslinking The present invention is directed to nitrile-oxide precursor compounds, and their preparation and use as an irreversible cross-linking agent in polymers having appropriate functionality, i.e., alkenes, alkynes nitriles, and isocyanates. The present invention is also... | 10/23/2007 |
| 7271230 | Norbornene compounds with cross-linkable groups and their derivatives The present invention provided a norbornene compound with cross-linkable groups and their derivative polymers, wherein said cross-linkable groups were olefin or epoxy groups. Norbornene polymers with cross-linkable side chain and their block copolymers as well as mo... | 09/18/2007 |
| 7265888 | Color-stabilized electrochromic devices An electrochromic device comprising: (a) a first substantially transparent substrate having an electrically conductive material associated therewith; (b) a second substrate having an electrically conductive material associated therewith; (c) an electrochromic medium... | 09/04/2007 |
| 7262253 | Process for the preparation of amphiphilic poly (N-vinyl-2-pyrrolidone) block copolymers The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention c... | 08/28/2007 |
| 7214742 | 2-hydroxyphenyl-s-triazine crosslinkers for polymer networks Compounds of the general formula I′ in which R1 is H, C1–C12alkyl; C5–C12cycloalkyl; C2–C18alkyl which is interrup... | 05/08/2007 |
| 7205701 | Passive wireless acoustic wave chemical sensor A passive wireless acoustic wave chemical sensor can be utilized for monitoring the concentration of an analyte in a substance such as blood. Such an acoustic wave chemical sensor can be configured to include one or more interdigital transducers and a selective coat... | 04/17/2007 |
| 7186781 | Fullerene-containing polymer, producing method thereof, and photorefractive composition A composition comprising a fullerene-containing polymer obtained by reacting a polymer prepared by living radical polymerization with a fullerene, wherein: (a) the living radical polymerization is carried out using a monomer, a polymerization initiator, transition m... | 03/06/2007 |
| 7179580 | Radiation sensitive material and method for forming pattern A copolymer expressed by the following structural formula was obtained by loading adamantyl methacrylate monomer and t-butyl acrylate monomer by 1:1, then conducting polymerization, adding AIBN as a polymerizatio... | 02/20/2007 |
| 7144950 | Conformationally flexible cationic conjugated polymers Methods, compositions and articles of manufacture involving cationic conjugated conformationally flexible polymers are provided. A method for the synthesis of cationic water-soluble polymers with linkages along the polymer main chain structure which disrupt the abil... | 12/05/2006 |
| 7064168 | AB block copolymers containing poly (vinyl pyrrolidone) units, medical devices, and methods AnB block copolymers, wherein n is at least two, that include A blocks with poly(vinyl pyrrolidone) units and B blocks with urethane groups, urea groups, imide groups, amide groups, ether groups, ester groups, or combinations thereof, as well as medical d... | 06/20/2006 |
| 7030201 | Bottom antireflective coatings The present invention relates to bottom antireflective coating compositions and polymers useful in making such compositions. ... | 04/18/2006 |
| 6969742 | Method of producing a functional polymer particle The present invention relates to a method of producing a functional polymer particle having at least one kind of functional group selected from the following structure group (A), which comprises the step of reacting a non-crosslinked polymer particle having a succin... | 11/29/2005 |
| 6943211 | Polymer compounds Provided is a composition comprising a pre-formed, hydrolytically susceptible non-addition polyanionic polymer comprising polymer strands formed from at least one ethylenically unsaturated monomer and linking the polymer strands by at least one linking moiety compri... | 09/13/2005 |
| 6893684 | Anti-reflective coating compositions for use with low k dielectric materials Anti-reflective compositions and methods of using those compositions with low dielectric constant materials are provided. In one embodiment, the compositions include polymers comprising recurring monomers having unreacted ring members. In another embodiment, the pol... | 05/17/2005 |
| 6891019 | Protected aminofunctionalized polymerization initiators and methods of making and using same Anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The amine functionality includes a first protecting group, which can be aralkyl, methyl, allyl or tertiary alkyl group. The other of the amine protecti... | 05/10/2005 |
| 6872786 | Molecularly imprinted polymeric sensor for the detection of explosives A molecularly imprinted polymeric explosives sensor is provided which possesses selective binding affinity for explosives, such as 2,4,6-trinitrotoluene (TNT) and 1,3,5-trinitrobenzene (TNB). The polymeric sensor incorporates a porphyrin which undergoes a detectable... | 03/29/2005 |
| 6809156 | Fullerene-containing polymer, producing method thereof, and photorefractive composition A photorefractive composition comprising a polymer prepared by living radical polymerization, wherein: the living radical polymerization is carried out using a monomer, a polymerization initiator, transition metal catalyst and a ligand capable of reversibly forming ... | 10/26/2004 |
| 6794458 | Azlactone-functional hydrophilic coatings and hydrogels Surface coatings including azlactone-functional hydrogels and articles with the coatings disposed thereon are disclosed. Methods of making the coating and controlling the gellation time of the hydrogels are also disclosed. ... | 09/21/2004 |
| 6756449 | AnB block copolymers containing poly (vinyl pyrrolidone) units, medical devices, and methods AnB block copolymers, wherein n is at least two, that include A blocks with poly(vinyl pyrrolidone) units and B blocks with urethane groups, urea groups, imide groups, amide groups, ether groups, ester groups, or combinations thereof, as well as medical d... | 06/29/2004 |
| 6538072 | Methods for making multivalent arrays A method of preparing a multivalent array that includes: polymerizing at least one monomer comprising at least one polymerizable group and at least one latent reactive group in the presence of a metal carbene catalyst to form a polymer template comprising... | 03/25/2003 |
| 6512051 | Elastomer composition An elastomer composition including an elastomer having a functional group, and a compound having a functional group, in which corresponding functional groups form a cross-link by at least one of an ionic bond, a hydrogen bond, and Diels-Alder reaction wit... | 01/28/2003 |
| 6503989 | Polyolefin-based printable articles A monolayer polyolefin-based printable article includes 0.1 to 5% by weight of at least one polyaminoalkylene, and is characterized in that it has been treated by means of an oxidative surface treatment, such as a corona treatment. A process for the manuf... | 01/07/2003 |
| 6503985 | Thermoplastic elastomers having improved set and foams made therefrom A thermoplastic vulcanizate prepared by a process comprising the steps of dynamically vulcanizing a vulcanizable rubber within a mixture that includes from about 15 to about 90 percent by weight of the rubber and from about 10 to about 85 percent by weigh... | 01/07/2003 |
| 6489396 | (Meth)acrylate ester-based resin composition The present invention provides a novel (meth)acrylate ester-based resin composition which, for example, exhibits various good properties such as weather resistance, heat resistance, water resistance, acid resistance, alkali resistance, warm water resistan... | 12/03/2002 |
| 6465579 | Silica-polymer composite, method of production thereof, and rubber composition using the same A silica-polymer composite, featuring a low viscosity and excellent processability when being kneaded with a rubber and superior in dispersibility and tensile strength, comprising a polymer having a polar group containing a hetero atom and a benzene ring ... | 10/15/2002 |
| 6399712 | Polymer bound 2,2,6,6,-piperidinyl derivatives A polymer compound is provided comprising at least one of the monomer units represented by the following formula (A) or formula (B): ##STR1## wherein R11 and R21 each represents a hydrogen atom, an oxy radical group, an alkyl group, ... | 06/04/2002 |
| 6391982 | Highly branched polyamide graft copolymers A graft copolymer is prepared by a process comprising: graft polymerizing a polyamide-forming monomer selected from the group consisting of lactams and ω-aminocarboxylic acids and an oligocarboxylic acid selected from the group consisting of from 0.015 to ... | 05/21/2002 |
| 6271315 | Methods for making multivalent arrays A method of preparing a multivalent array that includes: polymerizing at least one monomer comprising at least one polymerizable group and at least one latent reactive group in the presence of a metal carbene catalyst to form a polymer template comprising... | 08/07/2001 |
| 6235849 | Method of preparing norbornene sulfonamide polymers The invention is directed to polymers containing a repeating unit derived from a norbornene sulfonamide. These may be addition polymers which include copolymers with one or more comonomers such as norbornene, ethylene, an acrylate or sulfur dioxide or car... | 05/22/2001 |
| 6193909 | Cross-linked electrically conductive polymers, precursors thereof Cross-linked electrically conductive polymers, in particular electrically conductive, polyaniline are described. Dopants and substituents having pendant cross-linkable functionality are used which form a cross-linked conducting polymer network. The cross-... | 02/27/2001 |
| 6184302 | Substantially water-insoluble cationized solids, and their preparation and use The present invention relates to water-insoluble cationized solids obtained by treating solids with cationic homopolymers and/or copolymers comprising allylic and/or vinylic double bonds, where cationization is carried out using nitrogen-containing cation... | 02/06/2001 |