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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7300993 | Process for the preparation of polyether polyols The invention relates to a process for the preparation of polyether polyols, which process involves: (a) contacting a phosphorus containing compound having at least one hydroxyl group with alkylene oxide to obtain alkoxylated initi... | 11/27/2007 |
| 7205337 | End-capped polymers and compositions containing such compounds End-capped polymers, methods for making those end-capped polymers, compositions containing those end-capped polymers, and methods for using those compositions are disclosed. One of the disclosed end-capped copolymers has the formula (I): | 04/17/2007 |
| 7169956 | Double metal cyanide complex catalyst, its production process and its utilization Provided is a double metal cyanide complex catalyst with a high activity which is readily produced on an industrial scale. The double metal cyanide complex catalyst is of a fine particle form and contains t-butyl alcohol or, t-butyl alcohol and another organic compo... | 01/30/2007 |
| 7141613 | Flame resistant rigid foams and formulations for the production thereof The invention relates to flame resistant rigid foams and formulations useful for the production thereof. The polyol formulation must include at least one substance which is inert with respect to isocyanates, does not deplete the ozone layer and has a boiling point b... | 11/28/2006 |
| 7125834 | Functional substances derived from oligoolefins having functional groups at the ends This invention provides the following: an amphiphilic functional substance with lipophilicity, affinity for supercritical CO2, and if necessary hydrophilicity comprising an oligoolefin chain and a perfluoroalkyl group(s) at a single end thereof or at both... | 10/24/2006 |
| 7019177 | Process for preparing fluorohalogenethers A process for preparing (per)fluorohalogenethers having general formula (II): R′CF2OCFA-CA′F2 (II) wherein:— A and A′, equal to or different from each other, are H, Cl or Br bu... | 03/28/2006 |
| 7012164 | Method for continuously producing a polyether A method for precisely producing a polyether having a relatively high molecular weight by means of a double metal cyanide complex catalyst is provided. A method for continuously producing a polyether, which comprises ring opening addition polymerization of an alkyle... | 03/14/2006 |
| 6933063 | Spirobifluorene compounds, electroluminescence polymer and electroluminescence element having the same Provided are spirobifluorene compounds which can provide excellent processibility with improved solubility in organic solvents, an electroluminescence (EL) polymer obtained therefrom and an EL element having the same. The EL polymer comprising repeating units of the... | 08/23/2005 |
| 6869543 | Amine-initiated polyether polyols and a process for their production Clear, amine-initiated polyether polyols are made by epoxidizing an amine in the presence of an alkali metal hydroxide catalyst. By reducing the amount of catalyst used during the polyol synthesis and by adding the catalyst after between 5 and 30% of the total amoun... | 03/22/2005 |
| 6855844 | Phtalic anhydride based polyester-ether polyols and double metal cyanide catalyst system for preparing same Disclosed are polyester-ether polyols and their use in urethane prepolymers, urethane foams and non-foam urethane coatings, adhesives, sealants and/or elastomers. Methods for producing such polyester-ether polyols using double metal cyanide catalysts are disclosed, ... | 02/15/2005 |
| 6835856 | Process for preparing fluorohalogenethers A process for preparing (per)fluorohalogenethers having general formula (I): (R)nC(F)mOCAF—CA′F2 (I) wherein: A and A′, equal to or different the one from the other, a... | 12/28/2004 |
| 6583308 | Short-chain polymeric yellow cyanoester-derivative colorants and articles comprising such colorants A yellow colorant comprising a chromophore having at least one poly(oxy-C2 -C4 -alkylene) chain attached to an aromatic methine backbone having at least one cyanoester moiety attached thereto is provided. The ester portion must inclu... | 06/24/2003 |
| 6569352 | Phthalic anhydride based polyester-ether polyols and urethane prepolymers produced therefrom Disclosed are polyester-ether polyols and their use in urethane prepolymers, urethane foams and non-foam urethane coatings, adhesives, sealants and/or elastomers. Methods for producing such polyester-ether polyols are disclosed, along with methods for pro... | 05/27/2003 |
| 6552091 | Block-copolymeric polyalkylene oxides containing styrene oxide, obtained by alkoxylation, and their use The invention relates to block-copolymeric polyalkylene oxides containing styrene oxide, obtained by alkoxylation, and their use as low-foam pigment wetting agents in aqueous pigment pastes with or without cosolvent and in aqueous and low-solvent coating ... | 04/22/2003 |
| 6552213 | Stereoselective route to produce tris-O-substituted-(E)-1-(3,5-dihydroxyphenyl)-2-(4-hydroxyphenyl)ethene, an intermediate in the synthesis of trans-resveratrol The present invention relates to a new stereoselective method for the preparation of tris-O-substituted-(E)-1-(3,5-dihydroxyphenyl)-2-(4-hydroxyphenyl)ethene derivative of the formula (I) which is a key intermediate in the synthesis of trans-resverat... | 04/22/2003 |
| 6444858 | Method of reducing flock during alkoxylation The present invention provides a method for alkoxylating organic compounds comprising contacting an organic compound adapted to be alkoxylated with an alkylene oxide in a reaction vessel under conditions effective to alkoxylate the organic compound. The a... | 09/03/2002 |
| 6410801 | Continuous process for the production of polyether polyols A continuous alkoxylation process for the production of polyether polyols is disclosed. The process comprises the use of a plurality of reaction modules each having an outer tube and an inner tube with annular chamber between them. A spiral reaction tube ... | 06/25/2002 |
| 6320085 | Process for the preparation of benzyl-ethers ##STR1## The subject matter of the invention is the process for the preparation of mixed ethers of formula I, wherein Ar represents an aromatic or one or more heteroatom-containing moiety, optionally substituted by one or more C1-4 alkoxy, meth... | 11/20/2001 |
| 6303533 | Process for preparing two-metal cyanide catalysts A process for preparing double metal cyanide catalysts, comprising combining an aqueous solution of a metal salt of the formula M1m (X)n, with an aqueous solution of a cyanometallic acid of the formula Ha M... | 10/16/2001 |
| 6291704 | Polymerizable halogenated vinyl ethers Vinyl ether compounds having the formula: R--O--X--O--CH.dbd.CH2 wherein R is a radical selected from R1 --Cn Hm --, R1 --Cn Hm --C(.dbd.O)--, R1 --Cn Hm ... | 09/18/2001 |
| 6281393 | Polyols useful for preparing water blown rigid polyurethane foam Mannich polyols having a viscosity of from 300 to 3,500 cps (0.3 to 3.5 Pa*s) at 25° C. are prepared by admixing a phenol, an alkanolamines, and formaldehyde mixed in molar ratios of from 1:1:1 to 1:2.2:2.2 resulting in an initiator which can be alkoxyla... | 08/28/2001 |
| 6248889 | Process for converting an alcohol to the corresponding fluoride A process for preparing a fluoride from its corresponding alcohol comprises the steps of (a) forming a mixture comprising (i) at least one fluorinated, saturated aliphatic or alicyclic sulfonyl fluoride (for example, perfluorobutanesulfonyl fluoride) and ... | 06/19/2001 |
| 6022937 | Polyether polyols based on triazole group containing compounds and a process for their production This invention relates to novel polyether polyols and to a process for their production. These polyether polyols are prepared by forming a polyhydroxyl group containing component in a first step by the reaction of a triazole-group containing compound with... | 02/08/2000 |
| 6002049 | Polymeric thickeners for aqueous compositions Latexes are thickened by compounds of the formula ##STR1## wherein R1 is an aliphatic, substituted aliphatic, aromatic, or substituted aromatic radical having a valence of from 2 to 8; each of B1 -B8 is independently ... | 12/14/1999 |
| 5945393 | Nonionic gemini surfactants Novel nonionic gemini surfactants are extremely effective emulsifiers for oil-in-water emulsions that provide improved detergency at even low concentration levels. The surfactants are characterized by the formula: ##STR1## wherein R1 is in... | 08/31/1999 |
| 5889092 | Method of modifying the rheological properties of latex paint The rheological properties of latexes and latex paint formulations thickened with non-urethane thickeners according to the invention are modified by adding to the latex or latex paint formulation an amount of a nonionic surfactant having an HLB value of f... | 03/30/1999 |
| 5885952 | Multifunctional detergent base A detergent base which is obtainable from the reaction of an ethylenically unsaturated sulfonic acid or carboxylic acid or anhydride thereof with a nonionic surfactant of the formula R1 --O-(alkylene-O)n.sbsb.1 --R2 ... | 03/23/1999 |
| 5885951 | Aqueous solution for tile, tub and grout cleaning A cleaner of the present type disclosed is a water based, alkaline product that might contain solvents, surface active agents, chelating agents, antimicrobial agents and/or other materials such as builders, fragrances and dyes. The combination of solvents... | 03/23/1999 |
| 5877214 | Polyaryl-poly(ethylene glycol) supports for solution-phase combinatorial synthesis The present invention is directed to the certain polyaryl-poly(ethylene glycol) compounds ("polyaryl-PEG" compounds) which are useful as soluble polyvalent supports in the preparation of combinatorial libraries of compounds. The resultant combinatorial li... | 03/02/1999 |
| 5786379 | Adamantyl-substituted biaromatic compounds and pharmaceutical/cosmetic compositions comprised thereof Novel pharmaceutically/cosmetically-active adamantyl-substituted biaromatic compounds have the structural formula (I): ##STR1## wherein Ar is a radical having one of the formulae (a')-(f'): ##STR2## and are useful for the treatment of a wide var... | 07/28/1998 |
| 5728796 | Process to react epoxide-containing compounds and aliphatic alcohols A process reaction between: (1) a compound that contains one or more epoxide moieties per molecule, and (2) a compound that contains one or more primary aliphatic hydroxyl groups per molecule; is catalyzed by: (3) a catalyst compound containing one or mor... | 03/17/1998 |
| 5728895 | Polymeric thickeners for aqueous compositions Latexes are thickened by compounds of the formula ##STR1## wherein R1 is an aliphatic, substituted aliphatic, aromatic, or substituted aromatic radical having a valence of from 2 to 8; each of B1 -B8 is independently ... | 03/17/1998 |
| 5723694 | Process for preparing monomethylated or dimethylated phenols Phenols monomethylated or dimethylated in the ortho or para position to the OH group and having the formula ##STR1## can be prepared by reaction of tert-alkyl-substituted phenols of the formula ##STR2## in which at least one free ortho or p... | 03/03/1998 |
| 5714639 | Double metal cyanide catalysts and methods for making them Improved double metal cyanide (DMC) catalysts useful for making epoxide polymers are disclosed. One catalyst is a paste of a double metal cyanide (DMC) compound, an organic complexing agent, and water. The paste comprises at least about 90 wt. % of partic... | 02/03/1998 |
| 5714638 | Preparation of polyoxyalkylene glycol monoether of tert-butyl alcohol and product Polyoxyalkylene glycol monoethers of monohydric alcohols are prepared by a process in which tetrahydrofuran or a mixture of tetrahydrofuran with a total of not more than 95 mol %, based on the amount of tetrahydrofuran used, of one or more comonomers from... | 02/03/1998 |
| 5659068 | Preparation of polyoxyalkylene glycol monoesters of monocarboxylic acids Polyoxyalkylene glycol monoesters of carboxylic acids are prepared by a process in which tetrahydrofuran or a mixture of tetrahydrofuran with a total of not more than 95 mol %, based on the amount of tetrahydrofuran used, of one or more comonomers from th... | 08/19/1997 |
| 5621133 | Dopamine agonists Novel compounds having the formula ##STR1## and the pharmaceutically acceptable salts, esters and amides thereof, wherein A is --O--, --S-- or --CR2 R8 --; R1, R2, R3, R4, R5, R | 04/15/1997 |
| 5591884 | Dopamine agonists Novel compounds having the formula ##STR1## and the pharmaceutically acceptable salts, esters and amides thereof, wherein A is --O--, --S-- or --CR2 R8 --; R1, R2, R3, R4, R5, R | 01/07/1997 |
| 5576275 | Oil soluble polyalkylene glycols A sequential block copolymer of the formula: R1 X--[Cy H2y O)m)Cx H2x O)n --H](I) containing: (i) a moiety R1 X derived from a starter molecule having at least one active hydrog... | 11/19/1996 |
| 5456847 | Low foaming, nonsilicone aqueous textile auxiliary compositions and the preparation and use thereof There are disclosed low foaming, nonsilicone aqueous textile auxiliary compositions comprising (a) a reaction product of a nonionic surfactant of formula ##STR1## wherein R is an aliphatic radical of at least 8 carbon atoms, R1 is hydrogen, C | 10/10/1995 |
