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 |
| 8119739 | Retardation film The invention provides a retardation film, composed primarily of an acrylic polymer, with transparency, heat resistance, and large retardation. The retardation film of the present invention is composed primarily of an acrylic polymer. The film has an in-plane retard... | 02/21/2012 |
| 8084545 | Photo- and/or thermo-curable copolymer, curable resin compositions, and cured articles Disclosed is a photo- and/or thermo-curable copolymer having polymerizable unsaturated groups in side chains, which is obtainable by reacting a copolymer (P) with an epoxy-containing polymerizable unsaturated compound (C), the copolymer (P) containing monomer units ... | 12/27/2011 |
| 7396882 | Styrene-free unsaturated polyester resin compositions Styrene-free unsaturated polyester resin compositions are provided which have low volatile organic compounds and hazardous air pollutants emissions when these resin compositions are used in open molding applications. A process for the manufacture of these resin comp... | 07/08/2008 |
| 7365123 | Grafted cyclodextrin Thermoplastic polymer compositions, films, continues, closures, laminates can comprise a modified vinyl polymer said modified polymer having a moiety comprising a cyclodextrin compound. The cyclodextrin compound, locked into the polymer structure, can absorb impurit... | 04/29/2008 |
| 7345126 | Production method of hydroxyl-containing polymer The present invention provides a production method of a hydroxyl-containing polymer including: protecting a hydroxyl group of a hydroxyl-containing monomer with a protecting group to make the monomer a protected monomer with decreased hydrophilicity; adding the prot... | 03/18/2008 |
| 7339018 | Diene-modified propylene copolymers Certain specific embodiments of the invention will now be discussed. For example, a process of preparing a copolymer composition that includes a diene-modified polypropylene copolymer is described, which process includes: contacting a metallocene catalyst compound w... | 03/04/2008 |
| 7300982 | Process for producing modified polyethylene resin A process for producing a modified polyethylene resin, which comprises the step of melt kneading at least: (A) 100 parts by weight of a polyethylene resin, (B) from 0.1 to 20 parts by weight of at least one compoun... | 11/27/2007 |
| 7271212 | Thermoplastic resin composition and shaped article A resin composition comprises 1 to 60 parts by weight of a wollastonite fiber (in which the number-average fiber length is 1 to 30 μm, the number-average fiber diameter is 0.1 to 10 μm, and the proportion of the number of a fiber having a fiber length of 5 to 25 Î... | 09/18/2007 |
| 7268189 | Polymers The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated ... | 09/11/2007 |
| 7238405 | Insulating material containing cycloolefin polymer An insulating material comprising a cycloolefin polymer, specifically, an interlayer insulating material for a high-density assembly board having interlayer-connecting via holes at most 200 μm in diameter, comprising a cycloolefin polymer containing at least 50 mol... | 07/03/2007 |
| 7238750 | Polymers The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsatu... | 07/03/2007 |
| 7183359 | Polypropylene having a high maleic anhydride content Polypropylene having high maleic anhydride content, between about 5 and about 45 wt %, may be prepared by first reacting a metallocene-prepared polypropylene having terminal unsaturation with one mole equivalent of maleic anhydride to give polypropylene having a sin... | 02/27/2007 |
| 7173089 | Near-net-shape polymerization process and materials suitable for use therewith This invention is directed to a processing approach for the rapid and efficient in-situ polymerization of specially prepared precursor mixtures to achieve near-net-shape production of objects/articles with exact dimensions. The process relies on the use of polymeriz... | 02/06/2007 |
| 7122595 | Powder-slurry that can be hardened by actinic radiation or by thermal means, method for producing said slurry and use of the same The invention relates to a powder-slurry that can be hardened by actinic radiation or by thermal means, comprising (I) components containing functional groups (A) which render them hardenable by actinic radiation and components containing complementary functional gr... | 10/17/2006 |
| 7112632 | Process for the preparation of low branch content polybutadiene A process for the preparation of low branch content polybutadiene comprising: (a) a first butadiene polymerisation stage; (b) treatment of the polymer solution obtained upon completion of stage (a) with a coupling ... | 09/26/2006 |
| 7094824 | Rubbery polymer with improved properties The present invention discloses a rubbery polymer having improved properties, which is comprised of repeat units which are comprised of (a) butyl acrylate, or optionally a mixture of butyl acrylate and 2-ethylhexyl acrylate containing up to about 40 percent 2-ethylh... | 08/22/2006 |
| 7091283 | Crosslinkable prepolymers from a hydrophilic monomer and a hydrophobic crosslinker The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated double ... | 08/15/2006 |
| 7033676 | Binding agent mixtures and their use in coating materials cured by actinic radiation and/or heat A binder mixture comprises at least one polymer (A) with saturated main chain that is not a polyester and at least one polyester (B) with a saturated and/or unsaturated main chain, where (i) one of the two components (A) or (B) con... | 04/25/2006 |
| 6946525 | Composition comprising polymers having a star structure, the polymers, and their use A composition, comprising, in an appropriate medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of make-up and are capable of being applied to keratinous fibers, in particul... | 09/20/2005 |
| 6943219 | Polymer and epoxy resin compositions The present invention provides a vinyl polymer with an epoxy group terminally introduced therein and an epoxy resin composition comprising (A) an epoxy resin and (B) a vinyl polymer which has a main chain produced by living radical polymerization and has a reactive ... | 09/13/2005 |
| 6933348 | Method of producing powdery coating material Disclosed is a method of producing a powdery coating material by using a curable acrylic resin (A) having a number average molecular weight of from 2,000 to 20,000 and a glass transition temperature of from 30 to 90° C. obtained by polymerizing a starting monomer c... | 08/23/2005 |
| 6919410 | Process for producing modified polypropylene resin There is provided a process for producing a modified polypropylene resin, which comprises the steps of mixing the following components (A) to (D), and reacting them with one another: (A) 100 parts by weight of a polypropylene resin... | 07/19/2005 |
| 6916767 | Antioxidant amines based on n-(4aniliophenyl) amides antioxidant amines based on n-(4-anilinophenyl) amides A composition of matter is disclosed wherein the composition comprises an N-aromatic substituted acid amide compound selected from the group consisting of compounds of formula (I) wherein A and B are independently selected alkylene groups; R1 is selected ... | 07/12/2005 |
| 6911253 | Porous resin film A porous resin film which comprises 30 to 90 wt % of a thermoplastic resin containing a hydrophilic thermoplastic resin component; and 70 to 10 wt % of an inorganic or organic fine powder was disclosed. The porous resin film of the present invention is valuable as a... | 06/28/2005 |
| 6875823 | Process for producing modified polyolefin resin There is provided a process for producing a modified polyolefin resin, which comprises the steps of: (1) blending at least the following components (A) to (D) to produce a blend: (A) 100 parts by weight... | 04/05/2005 |
| 6855780 | Polymer, process for producing the polymer, and curable composition containing the polymer This invention provides a production method of a vinyl polymer having a functional group at a molecular chain terminus which comprises adding a compound (I) having a functional group and an internal alkenyl group or conjugated polyene compound (II) in the living rad... | 02/15/2005 |
| 6812291 | Method for block polymer synthesis by controlled radical polymerization from dithiocarbamate compounds Chain end functionalized block copolymers having low polydispersity index are produced via controlled free radial polymerization of dithiocarbamates. ... | 11/02/2004 |
| 6803423 | (Meth)acryloyl group-modified ethylene-alpha-olefin copolymer, production method thereof and rubber composition An (meth)acryloyl group-modified ethylene-α-olefin copolymer (A) which has (meth)acryloyl group as a the side-chain thereof, wherein the intrinsic viscosity [η] was 0.01 to 10 dl/g measured in decalin at a temperature of 135° C.; and a rubber composition which co... | 10/12/2004 |
| 6797451 | Reflection-inhibiting resin used in process for forming photoresist pattern The present invention provides a resin of the formula: where R1, R2, R3, x and y are those defined herein. The present invention also provides methods for using the above described resin ... | 09/28/2004 |
| 6774192 | Photosensitive resin composition, its use, lactone-ring-containing polymer, and production process therefor The present invention provides: a photosensitive resin composition, which can form uniform coating films having higher coating film strength without causing surface contamination, decrease of evenness of coating films, decrease of film thickness, and coloring by dec... | 08/10/2004 |
| 6706391 | Anisotropically electroconductive film An anisotropically electroconductive film, which has a high reliability in its capacity for conducting electricity and also a good adhesion under such an adhesive condition that the film is heated at a temperature of 130° C. or less for a short period of time, has ... | 03/16/2004 |
| 6645562 | Method of preparing a curable coating and curing thereof A method of preparing a curable coating and a method of curing the curable coating are disclosed. The curable composition from which the curable coating is prepared may be applied to the surface of a substrate in neat form or in aqueous medium to produce ... | 11/11/2003 |
| 6482900 | Polymer, process for producing the polymer, and curable composition containing the polymer A vinyl polymer having, at a molecular chain terminus, a structure represented by the general formula 1: ##STR1## (wherein R3 is a hydroxy, amino, epoxy, carboxylic acid, ester, ether, amide or silyl group, an alkenyl group having low polymeriz... | 11/19/2002 |
| 6472082 | Modified thermoplastic norbornene polymer and process for the production thereof A modified thermoplastic norbornene polymer obtained by graft-modifying a thermoplastic norbornene polymer selected from a ring-opening polymer of a norbornene monomer or a hydrogenated product thereof with at least one unsaturated compound selected from ... | 10/29/2002 |
| 6472085 | Thermosetting compositions containing epoxy functional polymers prepared by atom transfer radical polymerization A multi-component composite coating composition comprising a base coat deposited from a pigmented film-forming composition and a transparent top coat applied over the base coat in which the base coat is a thermosetting composition comprising a co-reactabl... | 10/29/2002 |
| 6433098 | Process of preparing curable compositions and compositions therefrom The invention relates to a curable composition and a process of preparing the curable composition. The process comprises (a) forming an oligomer from oligomerization of a mixture of a monomer A having a functional group and a monomer B at a temperature in... | 08/13/2002 |
| 6399695 | Thermoplastic polyester resin composition The purposes of the present invention are to provide highly impact-resistant thermoplastic polyester resin inexpensively and promote the recycling of PET bottles, which are dumped as waste. To attain the purposes, a carboxyl-modified metallocene catalyzed... | 06/04/2002 |
| 6369163 | Pyrrolidinone-containing compatibilizers There is described the use of monomeric and polymeric N-pyrrolidinone-containing compounds as compatibilizers for plastic compositions, a process for improving the compatibility of plastic compositions, the improved plastic compositions obtainable thereby... | 04/09/2002 |
| 6362274 | Graft copolymers, method for preparing same, compositions containing said copolymers, and use thereof for preparing pigment dispersions in aqueous and/or organic media The invention relates to grafted copolymers comprising at least three sequences of distinct chemical nature, among which one or more sequence(s) for anchoring on solid particles, one or more sequence(s) of hydrophobic character and one or more sequence(s)... | 03/26/2002 |
| 6346581 | Modified cycloolefin addition polymer and curable resin composition containing the same A curable resin composition comprising a modified cycloolefin addition polymer (A) obtained by introducing a functional group into a cycloolefin addition polymer containing a repeating unit (a) derived from a cycloolefin monomer having an organic group ha... | 02/12/2002 |