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 |
| 8008428 | Azide- or acetylene-terminated poly(alkylene oxide, oxyethylated polyol or olefinic Alcohol) The invention provides water-soluble compounds that include a polymer and at least one terminal azide or acetylene moiety. Also provided are highly efficient methods for the selective modification of proteins with PEG derivatives, which involves the selective incorp... | 08/30/2011 |
| 7723464 | Aromatic/aliphatic diamine derivatives for advanced compositions and polymers Novel compositions of matter comprise certain derivatives of 9,9-dialkyl fluorene diamine (AFDA). The resultant compositions, whether compositions of matter or monomers that are subsequently incorporated into a polymer, are unique and useful in a variety of applicat... | 05/25/2010 |
| 7304096 | Highly functional dental adhesive composition There is provided a highly functional one-step light-curing dental adhesive composition i) based on a multifunctional prepolymer mixture of 2,2-bis-[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]propane (“Bis-GMA”) and a multifunctional prepolymer formed by subst... | 12/04/2007 |
| 7276569 | Organic tellurium compound, process for producing the same, living radical polymerization initiator, process for producing polymer with the same, and polymer An organotellurium compound of the formula (1) is useful as a living radical polymerization initiator and makes possible precision control of molecular weights and molecular weight distributions under mild conditions | 10/02/2007 |
| 7230068 | Polymer derivatives The invention provides water-soluble compounds that include a polymer and at least one terminal azide or acetylene moiety. Also provided are highly efficient methods for the selective modification of proteins with PEG derivatives, which involves the selective incorp... | 06/12/2007 |
| 7217769 | Medical device with plasma cross-linked hydrophilic coating A medical device with a hydrophilic and lubricious coating, wherein the coating includes a hydrophilic polymeric unit layer deposited on the medical device and cross-linked with a plasma deposited double bond monomer. The hydrophilic polymeric unit can include ethyl... | 05/15/2007 |
| 7173075 | Gas releasing sealing and filling compositions Sealing and filling compositions for use in filling and/or sealing a root canal. The sealer and filler compositions include a polymerizable material that shrinks when polymerized. The composition also includes a gas releasing component that at least partially offset... | 02/06/2007 |
| 7134875 | Processes for forming dental materials and device Processes for forming dental materials that include applying a first hardenable dental composition (e.g., a dental adhesive) to a surface followed by applying a second hardenable dental composition (e.g., a dental composite) to the first hardenable dental compositio... | 11/14/2006 |
| 7129300 | Bioabsorbable adhesive compounds and compositions Bioabsorbable compounds which include a polyalkylene oxide backbone with two or more isocyanate substituents are useful as one component adhesives. Absorbable compositions useful as a two component adhesive contain a) a polyethylene oxide having two or more amine su... | 10/31/2006 |
| 7037399 | Underfill encapsulant for wafer packaging and method for its application A curable underfill encapsulant composition that is applied directly onto semiconductor wafers before the wafers are diced into individual chips. The composition comprises a thermally curable epoxy resin, a solvent, an imidazole-anhydride curing agent, fluxing agent... | 05/02/2006 |
| 7026440 | Branched polymers and their conjugates The present invention is directed to branched reactive water-soluble polymers comprising at least two polymer arms, such as poly(ethylene glycol), attached to a central aliphatic hydrocarbon core molecule through heteroatom linkages. The branched polymers bear at le... | 04/11/2006 |
| 6979719 | Coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group The invention pertains to a coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group. The invention also comprises a process for curing the present coating composition. Further, a process for ... | 12/27/2005 |
| 6965689 | Image based volumetric measuring device A measuring device for calculating sample volumes and changes in sample volumes is disclosed. The device includes a rotatable platform upon which the sample is placed and rotated in increments with an image of the sample being recorded at each rotational position to... | 11/15/2005 |
| 6962964 | Hydrogenation of methylenedianiline homologs and epoxy resins cured with same This invention relates to improved polyepoxide resins cured with a mixture of methylene bridged poly(cycloaliphatic-aromatic)amines and a process for preparing such polyepoxide resins as well as to the methylene bridged poly(cycloaliphatic-aromatic)amine composition... | 11/08/2005 |
| 6951905 | Bisoxazolone based polymers A method of preparing an elastomeric polymer comprising the step of reacting a bisoxazolone with a primary or secondary di-amine terminated oligomer. Also disclosed is a polymer having the formula comprising the repeat unit (I), where R1, R2, R... | 10/04/2005 |
| 6893736 | Thermosetting resin compositions useful as underfill sealants The present invention provides a thermosetting resin composition useful as a highly filled low CTE underfilling sealant composition which completely fills the underfill space in a semiconductor device, such as a flip chip assembly which includes a semiconductor chip... | 05/17/2005 |
| 6822067 | Quick-setting mixtures and kits with polyfunctional cyanates and amines, the thermosets produced therefrom and methods for the production thereof The invention describes a fast curable system for the preparation of amine modified thermosettings containing triazine groups, the system comprising at least one polyfuctional organic monomeric or prepolymerized cyanate and at least one primary or secondary amine, w... | 11/23/2004 |
| 6809130 | Halogen-free, phosphorus-free flame-retardant advanced epoxy resin and an epoxy composition containing the same A halogen-free, phosphorus-free poly-cyclic compound is used a flame retardant. This compound has amide and hydroxy groups, and thus it is able to react with an epoxy resin to form a reactive type flame-retardant advanced epoxy resin. The advanced epoxy resin togeth... | 10/26/2004 |
| 6797750 | Flame-retardant epoxy resin composition, molded article thereof, and electronic part The present invention has an object to provide a flame-retardant epoxy resin composition excellent in heat resistance and moisture resistance. A flame-retardant epoxy resin composition relating to the present invention contains an epoxy resin (A), a phosphazene comp... | 09/28/2004 |
| 6753040 | Alkydipropylenetriamines and their adducts as hardeners for epoxy resins A curable composition comprising a) an epoxy resin having on average more than one epoxide group per molecule and b1) an alkyldipropylenetrimine of general formula (I) and/or b2) an adduct of an alkyldipropylenetrimine of general formula (I) with b3) an epoxide comp... | 06/22/2004 |
| 6689820 | Anion exchanger, process for producing same, and its use An anion exchanger comprised of a fine particle having a cured polyethyleneimine surface layer formed on the fine particle surface. The cured polyethyleneimine surface layer is formed by the steps of: (1) dispersing a fine particle having a functional gro... | 02/10/2004 |
| 6663972 | Modified aminoplast crosslinkers and powder coating compositions containing such crosslinkers A crosslinking agent having reactive benzoxazine groups is provided. The crosslinking agent is an ungelled reaction product of aminoplast resin, a polyhydric aromatic compound, and at least one compound having active hydrogen groups reactive with aminopla... | 12/16/2003 |
| 6653369 | Water dilutable amine curing agents for aqueous two component epoxy resin systems Water dilutable amine curing agents for aqueous epoxy resin dispersions, comprising a combination of an epoxide-amine adduct with an emulsifier, the epoxide-amine adduct being obtainable by reacting a polyepoxide with a reaction product of an amine and an... | 11/25/2003 |
| 6635737 | Polymers derived from low unsaturation polyamines Low unsaturation, high molecular weight polyols having an unsaturation level below or equal to 0.006 milli-equivalents per gram, and preferably below 0.004 milli-equivalents per gram, and molecular weights of greater than or equal to about 2,000, and pref... | 10/21/2003 |
| 6562934 | Amino compound and process for producing the same An amino compound obtained by addition reaction of diamine represented by the following formula (1) and an alkenyl compound and a process for producing the same. H2 N--H2 C--A--CH2 --NH2 (1) wherein A is a phenylene... | 05/13/2003 |
| 6525159 | One-pack cold moisture curable resin compositions This invention provides a one-part, room temperature moisture curable resin composition which comprises a ketimine prepared by reacting a ketone having a substituent at position and a polyamine having at least two amino groups within its molecule ... | 02/25/2003 |
| 6503629 | Cationic coating composition The present invention provides a cationic coating composition capable of forming a coating film which is excellent in a corrosion resistance and an adhesive property and an electrodepositably coating property toward a rust preventive steel plate (zinc-pla... | 01/07/2003 |
| 6495653 | Curable composition and cured article thereof It is an object of the present invention to provide a curable composition retaining curability even at a low temperature of -20 to 5° C. and having a low viscosity at such low temperature, the cured product of which is an artifact having excellent water ... | 12/17/2002 |
| 6492437 | Solvent-based process for manufacturing latent curing catalysts Solvent-based processes for producing latent curing catalysts without causing an extreme exotherm. The process of the present invention includes combining an amine compound curing agent with a solvent, heating the mixture, adding an epoxy/solvent mixture ... | 12/10/2002 |
| 6465598 | Urethane resins Amine-terminated urethane oligomer compositions are described that include very high oligomer concentrations. The compositions are melts of the amine-terminated oligomers. The compositions can include one or more property modifiers. The compositions are u... | 10/15/2002 |
| 6455631 | Aqueous polyurethane dispersions containing modified hydrazide groups and their use in one-component thermoset compositions The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes contain terminal hydrazide groups and correspond to the formula ##STR1## wherein the terminal, modified hydrazide groups are present in an amount of 1 to 25% ... | 09/24/2002 |
| 6444272 | Single-packaged epoxy resin coating composition The present invention relates to a single-packaged epoxy resin coating composition comprising: (A) an epoxy resin having at least one epoxy group in a molecule and capable of being dissolved in the following organic solvent (D), (B) a ketimines compound having... | 09/03/2002 |
| 6410628 | Photoactivatable nitrogen-containing bases based on alpha-amino ketones The invention relates to organic compounds having a molecular weight of less than 1000 comprising at least one structural unit of the formula (I) ##STR1## in which R1 is an aromatic or heteroaromatic radical which is capable of absorbing light ... | 06/25/2002 |
| 6410127 | Epoxy resin compositions, epoxy resin compositions for fiber-reinforced composite materials, and fiber-reinforced composite materials comprising the same An epoxy resin composition having a low viscosity around a room temperature and excellent reinforcing fiber impregnating properties provides a composite material having excellent heat resistance and mechanical properties including compressive strength. Th... | 06/25/2002 |
| 6395340 | Coating composition and method for coating therewith This invention provides a thermosetting organic solvent paint comprising (A) a compound having at least two alicyclic epoxy groups in one molecule and having a number average molecular weight of less than 2000, (B) a secondary amino group-containing compo... | 05/28/2002 |
| 6388041 | Polyoxyethylene derivatives having optionally protected amino group at one end and process for producing the same Disclosed are polyoxyethylene derivatives having different functional groups at both ends of the molecule represented by the following formula (I) and a process for producing the derivatives by anionic living polymerization. The present invention provides... | 05/14/2002 |
| 6365708 | Polyamines and coating compositions with enhanced resistance to yellowing This invention relates to novel polyamines which are the reaction product of A) at least one nonaromatic diamine containing from 2 to 40 carbon atoms, wherein the amine groups are primary amine groups; and B) at least one epihalohydrin of the formula ##ST... | 04/02/2002 |
| 6362359 | One-component thermoset coating compositions The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or... | 03/26/2002 |
| 6316109 | Aminoplast-based crosslinkers and powder coating compositions containing such crosslinkers A crosslinking agent having reactive benzoxazine groups is provided. The crosslinking agent is the ungelled reaction product of a polyhydric aromatic compound and an aminotriazine compound having one or less non-alkylated NH bond per triazine ring. The cr... | 11/13/2001 |
| 6309757 | Gas barrier coating of polyamine, polyepoxide and hydroxyaromatic compound Gas barrier coating compositions are provided which include a polyamine component, a polyepoxide component and a hydroxy-substituted aromatic compound that is present in an amount sufficient to provide a gas barrier coating having an oxygen permeability l... | 10/30/2001 |