Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7718823 | Toluate ester for use as reactive and non-reactive diluent in polymer applications This invention relates to toluate ester compositions and their use as solvent, plasticizers, extender and/or diluents in binder formulations, a method of producing such ester compositions, as well as polymer compositions containing such liquid ester compositions. Th... | 05/18/2010 |
| 7381354 | Flame retardants with high halogen content and low viscosity Flame retardant formulations comprised of at least one bromine-containing polyol are produced by a process which comprises: A) heating a mixture formed from components comprised of (i) tetrabromophthalic anhydride, (ii) at least on... | 06/03/2008 |
| 7332548 | Process for production of a polyester product from alkylene oxide and carboxylic acid A process to produce polyester product from alkylene oxide and carboxylic acid. More specifically this process relates to a process to produce polyethylene terephthalate where terephthalic acid and ethylene oxide are reacted to form a partially esterified terephthal... | 02/19/2008 |
| 7329772 | Method for the preparation of a hydroxyalkyl hindered phenolic antioxidant A method of making a hindered phenolic antioxidant is disclosed wherein the method comprises: reacting an ester of the formula: wherein ... | 02/12/2008 |
| 7258823 | Flame retardants with high halogen content and low viscosity Flame retardant formulations comprised of at least one bromine-containing polyol are produced by a process which comprises: A) heating a mixture formed from components comprised of (i) tetrabromophthalic anhydride, (ii) at least one aliphatic polyol, an... | 08/21/2007 |
| 7132484 | Continuous process for producing poly (trimethylene terephthalate) A continuous process for the production of poly(trimethylene terephthalate) is disclosed. According to the process, a liquid feed mixture comprising bis-3-hydroxypropyl terephthalate and/or low molecular weight polyesters of 1,3-propanediol and terephthalic acid, th... | 11/07/2006 |
| 7045564 | Flame retardants with high halogen content and low viscosity A flame retardant formulation which is the combination of at least (1) at least one bromine-containing polyol flame retardant formed from the reaction of (a) tetrabromophthalic anhydride, (b) an aliphatic polyol, and (c) an epoxide, and (2) at least one aliphatic di... | 05/16/2006 |
| 7044988 | Partially dehydrated reaction product, process for making same, and emulsion containing same The disclosed invention relates to a composition comprising a partially dehydrated product made by: (I) reacting (A) a hydrocarbyl substituted succinic acid or anhydride with (B) a polyol, a polyamine, a hydroxyamine, or a mixture ... | 05/16/2006 |
| 6951954 | Continuous process for producing bis(3-hydroxypropyl) terephthalate A process for the continuous production of at least one of bis(3-hydroxypropyl) terephthalate and low molecular weight oligomers of 1,3-propanediol and terephthalic acid is disclosed. According to the process, preheated 1,3-propanediol (about 150° C. to about 200°... | 10/04/2005 |
| 6878845 | Oligomers from multifunctional acrylates Oligomers from multifunctional acrylates and organonitro compounds are provided. Films obtained from crosslinked oligomers of the present invention are useful as protective or decorative coatings as well as components in adhesives and composites. ... | 04/12/2005 |
| 6861539 | Bis-amino acid hydroxyethylamino sulfonamide retroviral protease inhibitors Selected bis-amino acid hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to ... | 03/01/2005 |
| 6489258 | Synthesis and application of vapor grafted porous materials This invention provides an article, compositions, methods of making and uses of vapor-deposited metal compounds immobilized on porous substrates. The substrate is a porous substrate having an average pore size of at least about 8 Å and a surface area of ... | 12/03/2002 |
| 6355830 | Process for preparation of dicarboxylic acid monoesters A process for producing a dicarboxylic acid monoester which comprises subjecting a dicarboxylic acid monoester or an alkali metal salt of a dicarboxylic acid monoester and a metal alkoxide to transesterification in the presence of an organic solvent, or a... | 03/12/2002 |
| 6350895 | Transesterification process using yttrium and samarium compound catalystis This invention relates to an improvement for the preparation of bis(3-hydroxypropyl) dicarboxylate monomers using 1,3-propanediol and a dialkyl dicarboxylate in the presence of a catalytic amount of such yttrium and/or samarium compounds as yttrium/samari... | 02/26/2002 |
| 5840957 | Transesterification process using lanthanum compound catalyst This invention relates to an improved transesterification process for the preparation of bis(3-hydroxypropyl) terephthalate monomer from 1,3-propanediol and a dialkyl terephthalate using a lanthanum compound transesterification catalyst.... | 11/24/1998 |
| 5204454 | Prepolymeric polyols containing mesogenic units Prepolymer polyols containing mesogenic moieties useful as reactants for the preparation of resinous materials are disclosed. Synthesized by condensing a polyether polyol with bifunctional mesogenic diacids, or diesters, the compounds of the invention are... | 04/20/1993 |
| 5093517 | Method for the esterification of thiopropionates There is disclosed a method for making compounds such as 3,6,9-trioxaundecane-1,11-bis (3-n-dodecylthiopropionate) which comprises reacting an alkyl thiopropionate with a glycol at temperatures between 50° C. and 180° C. in the presence of a catalytic a... | 03/03/1992 |
| 4929749 | Production of terephthalate esters by degradative transesterification of scrap or virgin terephthalate polyesters A process for the production of terephthalate esters having the following general formula (I). ##STR1## Substituents R and R' are the same or different and represent a straight chain or branched alkyl group having from 6 to 15 carbon atoms. The ... | 05/29/1990 |
| 4722803 | Self-compatibilizing polyester polyol blends based on dimethyl terephthalate residues Fluorocarbon blowing agent compatible polyol blends are provided comprising reaction products of a combination of (a) a residue from the manufacture of dimethyl terephthalate, (b) a low molecular weight diol compound, (c) a nonionic surfactant compound, (... | 02/02/1988 |
| 4720571 | Polyols from scrap polyethylene terephthalate and dimethyl terephthalate process residue Disclosed is a mixture of terephthalic acid ester polyols for use in the preparation of rigid polyurethane and polyisocyanurate foams. The polyols are prepared by reacting scrap polyethylene terephthalate, dimethyl terephthalate process residue and an exc... | 01/19/1988 |
| 4681975 | Polyester A polyester being liquid at 25° C. comprises a polybasic acid and a polyhydric alcohol as its monomer constituents, wherein the polyhydric alcohol is composed at least partially of 1,2-butanediol.... | 07/21/1987 |
| 4661622 | Method for producing composite ester A novel method for producing a composite ester from dibasic acid, diol and monovalent alcohol through a dehydrating esterification reaction in the first step and then alcohol removing ester interchange reaction in the second step.... | 04/28/1987 |
| 4658053 | Production of esters A process for the production of an ester comprises reacting an olefin with carbon monoxide, hydrogen and another ester at elevated temperature and pressure in the presence of a catalyst comprising (1) a rhodium source, (2) a ruthenium source, and (3) coba... | 04/14/1987 |
| 4652591 | Reaction products of terephthalic acid residues and polycarboxylic acid-containing polyols and polymeric foams obtained therefrom A polyester polyol mixture is prepared by reacting a polycarboxylic acid component-containing polyol with a terephthalic acid residue, wherein the polycarboxylic acid component has ring units with two ##STR1## groups on adjacent or alternate ring pos... | 03/24/1987 |
| 4613678 | Esterification of aromatic dicarboxylic acids with cyclic alkylene carbonates Esterification of aromatic dicarboxylic acids with cyclic alkylene carbonates in the presence of organic compounds containing at least one six-membered aromatic nitrogen-containing heterocyclic moiety.... | 09/23/1986 |
| 4596886 | Polyester containing impure 1,2-butanediol A polyester being liquid at 25° C. comprises a polybasic acid and a polyhydric alcohol as its monomer constituents, wherein the polyhydric alcohol is composed at least partially of 1,2-butanediol.... | 06/24/1986 |
| 4559172 | Process for acylation with novel acylating agent This invention relates to a novel acylation process which comprises using as the acylating agent an o-hydroxy-substituted aromatic oxime ester represented by the general formula (I) ##STR1## and mixing said acylating agent with an amine substance rep... | 12/17/1985 |
| 4506090 | Aromatic polyols made from polyethylene terephthalate scrap, glycols and aromatic carbonyl-containing compounds Mixtures of aromatic polyols containing ester functionalities suitable for use as polyol extenders in rigid foams prepared by reacting aromatic carbonyl-containing compounds with an alkylene glycol, the reaction product of which is reacted with recycled p... | 03/19/1985 |
| 4444918 | Aromatic polyols made from waste streams from the manufacture of terephthalic acids, alkylene glycols and dibasic acids Mixtures of aromatic polyols containing ester functionalities suitable for use in rigid foams prepared by reacting dibasic acid residues with an alkylene glycol residue, the reaction product of which is reacted with terephthalic acid residues are describe... | 04/24/1984 |
| 4442237 | Novel aromatic amide polyols from the reaction of phthalic acid residues, alkylene glycols and amino alcohols Mixtures of aromatic polyols containing tertiary amine and ester functionalities suitable for use in rigid foams prepared by reacting a phthalic acid residue with an alkylene glycol and an amino alcohol are described. These novel polyols may be blended wi... | 04/10/1984 |
| 4442238 | Aromatic amide polyols for rigid polyurethane foams Mixtures of aromatic polyols containing amide and ester functionalities suitable for use in rigid foams prepared by reacting a phthalic acid residue with an amino alcohol and subsequent alkoxylation are described. These novel polyols may be blended with c... | 04/10/1984 |
| 4439551 | Packaging foam polyurethane composition employing novel polyol blend Economical, open-celled packaging foams of better quality than foams from commercial aromatic polyester polyols may be prepared with a novel polyol blend. The most important component in the polyol blend is an aromatic polyester polyol made from dibasic a... | 03/27/1984 |
| 4289895 | Method for the preparation of oligomeric alkylene terephthalates Oligomeric alkylene terephthalates having an average degree of condensation of 4 to 7 are produced by passing dimethylterephthalate and diol having at least 3 carbon atoms downwardly through a series of reaction chambers, each outfitted with stirring and ... | 09/15/1981 |
| 4289896 | Transesterification process Phosphonic acids are suitable catalysts for the transesterification of alkyl esters of carboxylic acids with aliphatic or cycloaliphatic diols containing more than 3 carbon atoms.... | 09/15/1981 |
| 4223124 | Method for producing polyesters containing low amounts of ether by-products A method for decreasing the amount of ether as a by-product in polyesters (for example terephthalic-based) by initially utilizing a deficient amount of a glycol (for example, ethylene glycol) in the early reaction stages and utilizing an excess of the gly... | 09/16/1980 |
| 4204051 | Process for polyurethanes from ortho-ester-blocked polyols This invention relates to a process for the preparation of new organic compounds having blocked hydroxyl groups, which compounds are converted by the action of moisture into compounds having free hydroxyl groups, the preferred compounds obtainable by this... | 05/20/1980 |
| 4163860 | Process for obtaining dimethyl terephthalate from polyester scrap A process is disclosed for converting a bis-(diol) terephthalate to dimethyl terephthalate, by interchange in a methanol medium in the presence of magnesium methylate as catalyst. In this way dimethyl terephthalate may be regenerated from scrap of polyter... | 08/07/1979 |
| 4130552 | Polyester catalyst system and process A polycondensation catalyst consisting essentially of the reaction product of an unsaturated ,ଲ-dicarboxylic acid anhydride and an antimony alkoxide.... | 12/19/1978 |
| 4115415 | Process for the production of alkylene glycol ether ester of organic carboxylic acid A process for the production of an alkylene glycol ether ester of an organic carboxylic acid which comprises the step of reacting an alkylene oxide with an ester of organic carboxylic acid in accordance with the following reaction equation: ##STR1## ... | 09/19/1978 |
| 4104263 | Process for producing film and fiber-forming polyalkylene terephthalate High molecular weight, colorless polyesters suitable for shaping into filaments and films are obtained using novel catalysts selected from the group consisting of reaction products of specified antimony or zirconium (IV) compounds with 1) a carboxylate of... | 08/01/1978 |
