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| Number | Title | Issue Date |
| 7977503 | Polymerization inhibition method The objective of the present invention is to provide a method for inhibiting polymerization of (meth)acrylic acid and the like. By the method, the generation of deposit in a pipe, which is exclusively used for providing a solution of a dialkyldithiocarbamic acid cop... | 07/12/2011 |
| 7649106 | Diol (meth) acrylate compound having urethane bond, method for producing the same, and polymer thereof The present invention provides compounds having in their molecule a structure contributing to high hydrophilicity, and having high photopolymerizability, as well as polymers of such compounds, and a method for producing the compound. The compounds are diol (meth)acr... | 01/19/2010 |
| 7557239 | Diol (meth) acrylate compound having urethane bond, method for producing the same, and polymer thereof The present invention provides compounds having in their molecule a structure contributing to high hydrophilicity, and having high photopolymerizability, as well as polymers of such compounds, and a method for producing the compound. The compounds are diol (meth)acr... | 07/07/2009 |
| 7473795 | Blends of quinone alkide and nitroxyl compounds as polymerization inhibitors Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of: A) at least one nitroxyl compound, and B) at least one quinone alkide ... | 01/06/2009 |
| 7348455 | Process for producing (meth)acrylic acids A process for producing (meth)acrylic acid or (meth)acrylic acid esters, which comprises a reaction step comprising vapor phase catalytic oxidation of propylene, propane or isobutylene and, if necessary, a reaction step comprising an esterification step, characteriz... | 03/25/2008 |
| RE39850 | Inhibitors of histone deacetylase The invention relates to the inhibition of histone deactylase. The invention provides compounds and methods for inhibiting histone deacetylase enzymatic activity. The invention also provides compositions and methods for treating cell proliferative diseases and condi... | 09/18/2007 |
| 7247596 | Stabilized organoborane polymerization initiators and polymerizable compositions The invention is polymerizable compositions comprising in one part an organoboron compound capable of forming a free radical generating species and a stabilizing amount of one or more compounds comprising a dihydrocarbyl hydroxyl amine, an alicyclic hydroxyl amine, ... | 07/24/2007 |
| 7084196 | Flame retardant compositions Polymeric substrates, for example polyolefins such as polypropylene, can be made flame retardant by the incorporation therein of a synergistic mixture of (i.) at least one compound selected from the group consisting of nitroxyl stabilizers, hydroxylamine stabilizers... | 08/01/2006 |
| 7045647 | Blends of quinone alkide and nitroxyl compounds and polymerization inhibitors Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of: A) at least one nitroxyl compound, and B) at least one quinone alkide compound having an electro... | 05/16/2006 |
| 7022220 | C-nitrosoaniline compounds and their blends as polymerization inhibitors Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one inhibitor selected from the group consisting of C-nitrosoaniline and quinone imine o... | 04/04/2006 |
| 7002035 | Color stabilization of base-stabilized ethylenically modified unsaturated monomers The invention relates to the use of at least one compound from the tocopherol group for the color stabilization of ethylenically unsaturated monomers, particularly hydroxyalkyl(meth)acrylates, which already comprise at least one polymerization inhibitor for base sta... | 02/21/2006 |
| 6992225 | Organic peroxide heat stabilizer The invention concerns a heat stabilizer of organic peroxides characterized in that it is an N-hetrocyclic compound which contains at least one nitroxyl radical with the N atom of the nitroxyl radical forming part of the ring. The invention also concerns a storage-s... | 01/31/2006 |
| 6960279 | Method for stabilizing vinyl aromatic monomers using selected polymerization inhibitors and polymers prepared therewith Disclosed is the observation that 7-aryl-quinone methides and 4-tert-butylcatechol, when used in combination in a vinyl aromatic monomer to inhibit polymerization,do not inhibit polymerization to the same extend as each would if used separately. Stated another way, ... | 11/01/2005 |
| 6902663 | C-nitrosoaniline compounds and their blends as polymerization inhibitors Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one inhibitor selected from the group consisting of C-nitrosoaniline and quinone imine o... | 06/07/2005 |
| 6541661 | Inhibitors of histone deacetylase The invention relates to the inhibition of histone deacetylase. The invention provides compounds and methods for inhibiting histone deacetylase enzymatic activity. The invention also provides compositions and methods for treating cell proliferative diseas... | 04/01/2003 |
| 6538090 | Organic anti-reflective polymer and method for manufacturing thereof Polymers are disclosed having the following formula 1 or 2: ##STR1## Polymers of the present invention can be used as an ARC material useful for submicrolithography processes using 248 nm KrF, 193 nm ArF and 157 nm F2 lasers. The polymers conta... | 03/25/2003 |
| 6518452 | Process for stabilizing (METH)acrylic acid esters against unwanted radical polymerization A method is described of stabilizing (meth)acrylic esters against unwanted free-radical polymerization, in which the mixture to be stabilized has added to it a polymerization inhibitor mixture comprising at least one nitroxyl radical and/or at least one o... | 02/11/2003 |
| 6506944 | Preparation of substituted olefins C6 compounds of the formula (I) E--CH2 --CH.dbd.CH--CH2 --E1 (I) are prepared by self metathesis or cross metathesis of compounds of the formulae (II) and/or (III) R--CH.dbd.CH--CH2 --E (II) R1 --C... | 01/14/2003 |
| 6376703 | Method for handling alkylamino (meth) acrylate and apparatus for storage The storage of alkylaminoalkyl (meth)acrylate is made in a container made of stainless steel whose wall surface has not more than 1.6 μm for the Ra defined in JIS B 0601. And the compound is stored in a container having a water concentration of not more ... | 04/23/2002 |
| 6300513 | Method of stabilizing N-oxyl compounds in vinyl compounds It intends to prevent the reduction in quantity with time of an oxyl compound in vinyl compounds. The quantity reduction of the N-oxyl compound is suppressed by causing an N-oxyl compound, N-hydroxy-2,2,6,6-tetramethylpiperidine compound and a 2,2,6,... | 10/09/2001 |
| 6291719 | Methods and equipments of using dual functional catalyst of packing type The present invention relates to a method of catalyzing etherification, esterification, hydration, ether cleavage, isomerization alkylation, or other reactions which are catalyzable with an acid or molecular sieve catalyst. Said reactions are conducted us... | 09/18/2001 |
| 5847035 | Substituteed tetrahydropyrimidine derivatives and their use as polymerization inhibitors for vinyl aromatic compounds The present invention is directed to substituted tetrahydropyrimidine derivatives of the general formula ##STR1## wherein R1, R2, R3, R4, R5, R6 and R7, which may be the sam... | 12/08/1998 |
| 5688759 | Nitrogen-free anionic conditioning formulations Nitrogen-free anionic conditioning formulations containing sulfated polyol fatty acid esters corresponding to formula (I): ##STR1## in which R1 CO is a linear or branched, saturated or unsaturated acyl radical containing 6 to 22 carbon ato... | 11/18/1997 |
| 5654479 | 4-substituted bis(2,6-diisopropylphenyl)-carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation 4,4'-disubstituted bis(2,6-diisopropylphenyl)carbodiimides of the formula (I) ##STR1## where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyaddi... | 08/05/1997 |
| 5621138 | 4-substituted bis (2,6-diisopropylphenyl)- carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation 4,4'-disubstituted bis-(2,6-diisopropylphenyl)carbodiimides of the formula (I) ##STR1## where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyadd... | 04/15/1997 |
| 5616774 | Inhibition of unsaturated monomers with 7-aryl quinone methides Ethylenically unsaturated monomers are protected from premature polymerization during manufacture and storage by the incorporation therein of an effective stabilizing amount of a 7-aryl quinone methide compound.... | 04/01/1997 |
| 5614648 | Antioxidant glyceride derivatives A method of producing an antioxidant containing derivatives of an organic compound, and in particular, an antioxidant glyceride derivative, comprises reacting a first compound with a second medium. By this reaction, a product is formed whereby an active c... | 03/25/1997 |
| 5532414 | 4-substituted bis(2,6-diisopropylphenyl)-carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation 4,4'-disubstituted bis-2,6-diisopropylphenyl)carbodiimides of the formula (I) ##STR1## where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyaddi... | 07/02/1996 |
| 5342487 | Distillation process A process for reducing the amount of unwanted di(meth)acrylate produced during the distillation of hydroxyalkyl acrylates or hydroxyalkyl methacrylates.... | 08/30/1994 |
| 5302681 | Polymerization inhibition by fullerenes The premature free-radical polymerization of a non-linear, readily polymerizable organic monomer under conditions where the monomer would otherwise polymerize is inhibited by incorporating within the non-linear, readily polymerizable monomer a polymerizat... | 04/12/1994 |
| 5292920 | Salts of N-nitrosophenylhydroxylamine Disclosed are salts of N-nitrosophenylhydroxylamine and their use as polymerization inhibitors.... | 03/08/1994 |
| 5043468 | Process for delaying the gelling of unsaturated monomers, delayed-gelling compositions containing the monomers and application of the compositions to the treatment of subterranean formations The present invention relates to a process and compositions for delaying the gelling of vinyl monomers in an aqueous medium in the presence of a polymerization initiator, by employing a polymerization inhibitor consisting of an N-nitrosophenylamine salt i... | 08/27/1991 |
| 5023372 | Methods and compositions for inhibiting (meth)acrylic acid polymerization Methods and compositions are provided for inhibiting the polymerization of acrylic acid monomers during elevated temperature processing thereof or during storage or shipment of acrylic acid product. The compositions comprise a combination of a Mn source c... | 06/11/1991 |
| 5017720 | Methods of producing and reserving alkylene glycol monosorbates The invention provides a method of producing alkylene glycol monosorbates which comprises reacting sorbic acid and an alkylene oxide having 2 to 4 carbon atoms in a certain system containing a solvent inactive to the alkylene glycol monosorbates, one or m... | 05/21/1991 |
| 4997971 | Stabilized poly (ଲ-methyl-δ-valerolactone) Polyester polyols containing the following recurring unit derived from ଲ-methyl-δ-valerolactone (OCH2 CH2 CH(CH3)CH2 CO) used to be low in stability. It has been discovered that the stability of the polyester ... | 03/05/1991 |
| 4912247 | Enhancement of aromatic amine inhibition of acrylate monomer polymerization by addition of mannich products A composition and method of use for inhibiting the polymerization of acrylate esters during elevated temperature processing and during storage and handling thereafter. It comprises the combination of a Mannich reaction product, which is prepared from a su... | 03/27/1990 |
| 4898976 | Method of making the ethanolamine salt of N-nitrosophenylhydroxylamine The ethanolamine salt of N-nitrosophenylhydroxylamine ("NPHA") is effective as a polymerization inhibitor for ethylenically unsaturated monomers. The ethanolamine salt can be prepared by reacting ethanolamine with the ammonium salt of NPHA. Advantageously... | 02/06/1990 |
| 4797504 | Method and composition for inhibiting acrylate ester polymerization This invention relates to compositions and methods of inhibiting acrylate monomer polymerization at elevated temperatures comprising adding to the acrylate monomer an effective amount for the purpose of (a) a hydroxylamine having the formula ##STR1##... | 01/10/1989 |
| 4772740 | Ethanolamine salt of N-Nitrosophenylhydroxylamine and inhibiting polymerization therewith The ethanolamine salt of N-nitrosophenylhydroxylamine ("NPHA") is effective as a polymerization inhibitor for ethylenically unsaturated monomers. The ethanolamine salt can be prepared by reacting ethanolamine with the ammonium salt of NPHA. Advantageously... | 09/20/1988 |
| 4692544 | Inhibiting polymerization of ethylenically unsaturated monomers Certain substituted diaryl amines are used to inhibit the polymerization of ethylenically unsaturated monomers; for example, unsaturated carboxylic acids and derivatives thereof.... | 09/08/1987 |
