Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8178615 | Process for making polymers having nanostructures incorporated into the matrix of the polymer The present invention is directed toward a method for making a polymer that has nanostructures incorporated into the matrix of the polymer. The method of the invention involves the following steps: mixing a precursor solution for the polymer with a precursor for the... | 05/15/2012 |
| 7335410 | Composition and process for manufacturing polyester The invention relates to a composition suitable for catalysis in a process for the manufacture of polyester containing as Component I a carrier substance on which catalytically effective metal compounds are adsorbed and as Component II a phosphonic acid compound. | 02/26/2008 |
| 7329703 | Polymerized macrocyclic oligomer nanocomposite compositions The invention relates to polymers derived from macrocyclic oligomers containing organo clay fillers comprising a) a polymer derived from a macrocyclic oligomer; b) clay platelets; and c) the residue of one or more onium compounds having at least one ligand with a C | 02/12/2008 |
| 7309756 | Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters Macrocyclic oligoesters and compositions comprising macrocyclic oligoesters are prepared from intermediate molecular weight polyesters. In one embodiment, a diol is contacted with a dicarboxylic acid or a dicarboxylate in the presence of a catalyst to produce a comp... | 12/18/2007 |
| 7282555 | Method for incorporating nitrogen containing methine light absorbers in pet and compositions thereof The present invention is a method for efficiently incorporating a nitrogen containing methine light absorber into a polyester resin. The method includes forming a reaction mixture comprising combining a diol component, a diacid component selected from the group cons... | 10/16/2007 |
| 7196160 | Catalysts and methods for polymerizing macrocyclic oligomers Cyclic oligomers containing ester linkages are polymerized in the presence of a catalyst having at least one oxygen atom bonded to two metal atoms. At least one of the metal atoms is a tin atom, which is preferably tetravalent, i.e., bonded to three other groups in ... | 03/27/2007 |
| 7179853 | Resin dispersion for cationic electrodeposition and cationic electrodeposition coating composition including the same Disclosed are a resin dispersion and a cationic electrodeposition coating composition including the same, in which the dried coating film of the electrodeposition paint is lead-free and has an epoxy-acrylic double-layered structure for displaying excellent propertie... | 02/20/2007 |
| 7151143 | Blends containing macrocyclic polyester oligomer and high molecular weight polymer The invention provides blends of macrocyclic polyester oligomer (MPO) with high-molecular-weight polymer and polymerization catalyst as friable, one-component, ready-to-polymerize materials with long shelf life. The invention also provides methods for preparation an... | 12/19/2006 |
| 7141642 | Process for producing polymerizable polybranched polyester The present invention allows the production of a polymerizable hyperbranched polyester by introducing polymerizable unsaturated double bonds into the molecular terminals of a hyperbranched polyester polyol (A), which is obtained by condensation polymerization a poly... | 11/28/2006 |
| 7071291 | Isolation, formulation and shaping of macrocyclic oligoesters Processes for isolating, formulating, and shaping macrocyclic oligesters were developed which allow efficient production of macrocyclic oligoesters substantially free from solvent, which may include additives, fillers, and catalysts. ... | 07/04/2006 |
| 7022806 | Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters Macrocyclic oligoesters and compositions comprising macrocyclic oligoesters are prepared from intermediate molecular weight polyesters. In one embodiment, a diol is contacted with a dicarboxylic acid or a dicarboxylate in the presence of a catalyst to produce a comp... | 04/04/2006 |
| 6994914 | Macrocyclic polyester oligomers and processes for polymerizing the same A water slurry process is used to prepare a prepreg and to manufacture articles from macrocyclic polyester oligomers. In one embodiment, a process for preparing a water suspension of macrocyclic polyester oligomers includes the steps of contacting a macrocyclic poly... | 02/07/2006 |
| 6992133 | Low VOC, coating compositions having improved flexibility and impact resistance based upon nonlinear, low-molecular weight polyester polyol resins Coating compositions based on nonlinear, low molecular weight, polyester-based polyols having low viscosity and high solids content made by reacting a branched, polyhydric alcohol having at least three hydroxyl groups, such as trimethylolpropane; a glycol or diol; a... | 01/31/2006 |
| 6962968 | Purification of macrocyclic oligoesters Acid impurities, such as carboxylic acid-terminated polymers, are removed from macrocyclic oligoesters with ion exchange resins, resulting in macrocyclic oligoesters that are substantially free of acid impurities. The ion exchange resins can be regenerated anew and ... | 11/08/2005 |
| 6960626 | Intimate physical mixtures containing macrocyclic polyester oligomer and filler The invention provides intimate physical mixtures of macrocyclic polyester oligomer (MPO) and filler, as well as methods for their preparation and use. Improved dispersion of filler in a polymer matrix is achieved upon polymerization, and larger amounts of filler wi... | 11/01/2005 |
| 6913826 | Biodegradable polyester polymer and method for preparing the same using compressed gas In polymerizing biodegradable polymer material, a compressed gas is used as a reaction solvent for a solution-polymerization, in order to prepare biodegradable polyester homopolymer and copolymer with a high molecular weight in a fine powder form with a particle siz... | 07/05/2005 |
| 6906147 | Catalytic systems This invention relates to single-component and multi-component catalytic systems using aryl titanates. Aryl titanate compounds are useful as catalysts and co-catalysts in single-component and multi-component catalytic systems (e.g., for the polymerization of macrocy... | 06/14/2005 |
| 6746711 | Polymers with biocidal action, process for their preparation and their use Polymers with biocidal action, process for their preparation and their use The invention relates to polymers consisting essentially of structural units of the formula (1) in which R1 is a C1... | 06/08/2004 |
| 6716932 | High consistency absorbable polymeric resin High consistency polymers have an inherent viscosity of from about 1.30 to about 1.55, wherein the inherent viscosity is characterized by a standard deviation of about 0.05 or less. ... | 04/06/2004 |
| 6706396 | Processes for producing very low IV polyester resin The present invention provides processes for producing certain very low inherent viscosity polyesters. Also provided are the low inherent viscosity polyesters in discrete particulate form, and processes for producing the particulate polyesters. The discrete particul... | 03/16/2004 |
| 6657042 | Process for manufacturing homo- and copolyesters of Lactic acid A process is provided for manufacturing homo- and copolyesters of lactic acid by ring scission polymerization of its cyclic monomers in the presence of an initiator. Polymerization is carried out in the molten phase in the presence of an initiator system ... | 12/02/2003 |
| 6657044 | Process for making polytrimethylene terephthalate An improved process for the polymerization of polytrimethylene terephthalate by esterification of terephthalic acid or dimethylterephthalate with 1,3-propanediol (PDO), precondensation of the esterification product to produce a precondensation product, an... | 12/02/2003 |
| 6649731 | Catalysts for polyester production, process for producing polyester, and polyester By the present invention, there are provided a catalyst for polyester preparation, which comprises a solid titanium compound containing titanium, oxygen, carbon and hydrogen and having a Ti--O bond and which has a maximum solubility in ethylene glycol, as... | 11/18/2003 |
| 6639009 | Macrocyclic polyester oligomers and processes for polymerizing the same A water slurry process is used to prepare a prepreg and to manufacture articles from macrocyclic polyester oligomers. In one embodiment, a process for preparing a water suspension of macrocyclic polyester oligomers includes the steps of contacting a macro... | 10/28/2003 |
| 6610796 | Flame retardant polybutyleneterephthalate resin Disclosed is a flame retardant polybutyleneterephthalate resin prepared be copolymerizing a phosphorus-based flame retardant represented by the following formula I and a butyleneterephthalate unit: ##STR1## wherein R1 and R2 are ... | 08/26/2003 |
| 6596839 | Wholly aromatic polyester and production process therefor A process for producing a wholly aromatic polyester which is excellent in heat resistance, mechanical properties and yet color and has a high degree of polymerization by melt polymerizing a dicarboxylic acid and a diol directly on an industrial scale at a... | 07/22/2003 |
| 6555640 | Process for producing metal-containing resin and composition thereof Process that is capable of synthesizing a metal-containing resin having a good antifouling property in a short period of time without having such problems associated with the synthesis as gelation. The process for producing a metal-containing resin by con... | 04/29/2003 |
| 6528552 | Resist composition excellent in flame resistance A resist composition for permanent protective coating of a printed wiring board, which resist composition is excellent in flame resistance and is obtained by incorporating as essential components a flame retardant containing 100 to 140 parts by weight of ... | 03/04/2003 |
| 6479582 | Rubber composition A rubber composition is obtained which exhibit improved strength, abrasion resistance and antistatic properties, as well as low rolling resistance. The rubber composition is characterized as being rendered conductive by incorporating into rubber a silica fille... | 11/12/2002 |
| 6436549 | Block copolymers from macrocyclic oligoesters and dihydroxyl-functionalized polymers Block copolymers are prepared from polymerization of a macrocyclic oligoester and a dihydroxyl-functionalized polymer at an elevated temperature in the presence of a polymerization catalyst.... | 08/20/2002 |
| 6416819 | Method of preparing low-temperature-cure polymer composition A method of preparing a composition containing a fluorocarbon thermoplastic random copolymer comprising the steps of: (A) providing a mixture having: (i) a fluorocarbon thermoplastic random copolymer having subunits of: --(CH2 CF2)x--, --(CF | 07/09/2002 |
| 6387981 | Radiopaque dental materials with nano-sized particles A dental material comprising a hardenable resin, a non-heavy metal oxide particle and a heavy metal oxide. The dental materials can be radiopaque, strong, translucent, or resistant to toothbrush abrasion, or combinations thereof.... | 05/14/2002 |
| 6369157 | Blend material including macrocyclic polyester oligomers and processes for polymerizing the same A blend of a macrocyclic polyester oligomer and a polymerization catalyst as a one component ready-to-use material with a long shelf life enables production of parts from macrocyclic polyester oligomers without the modification of existing equipment, ther... | 04/09/2002 |
| 6362251 | Dental material comprising porous glass ceramics, porous glass ceramics, processes and use Dental material based on polymerizable (for example ethylenically unsaturated) monomers, epoxides, ormocers, liquid crystal monomers, oxethanes, spiro-orthoesters or spiro-carbonates as binders, a catalyst for cold, hot and/or photo-polymerization, and fi... | 03/26/2002 |
| 6346070 | Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester The present invention provides a catalyst for polyester production capable of producing a polyester with high catalytic activity and a process for producing a polyester using the catalyst. The catalyst for polyester production comprises a solid titanium c... | 02/12/2002 |
| 6316584 | Method for producing polyesters and copolyesters For the production of polyesters and copolyesters, coprecipitates are used individually or in a mixture as polycondensation catalysts, the coprecipitates being prepared by simultaneous hydrolytic precipitation of a titanium compound and a metallic compoun... | 11/13/2001 |
| 6303730 | Organic/inorganic composites with low hydroxyl group content, method for their production and application The invention relates to transparent organic/inorganic composites with low hydroxyl group content, based on silicic acid heteropolycondensates having extremely low water uptakes. These composites are obtained for example by nonhydrolytic condensation of c... | 10/16/2001 |
| 6251513 | Polymer composites for overvoltage protection A composition and devices utilizing these compositions for providing protection against electrical overstress including a matrix formed of a mixture of an insulating binder, conductive particles having an average particle size of less than 10 microns, and... | 06/26/2001 |
| 6140458 | Preparation process of polyester The invention provides a process for producing high-molecular aliphatic polyesters capable of being substitutes for general-purpose resins that are required to have high toughness, in a simplified manner and at a high volume efficiency. Specifically, in t... | 10/31/2000 |
| 6124411 | Preparation of novel Homo- and copolymers using atom transfer radical polymerization The present invention is directed to a process of atom (or group) transfer radical polymerization for the synthesis of novel homopolymer or a block or graft copolymer, optionally containing at least one polar group, with well defined molecular architectur... | 09/26/2000 |
