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| Number | Title | Issue Date |
| 7363745 | Pest trapping device A pest trapping device including a cap, a spewing member, a fan, a rotatable shaft, a transformer, a tray, a blue light emitting element, an electric circuit board, and a net. The spewing member has symmetrical holes to which support rods are secured for supporting ... | 04/29/2008 |
| 7323532 | Low-viscosity radiation-curing and thermally curing polyisocyanates The present invention concerns a process for producing low-viscosity polyisocyanates or secondary products thereof, which carry activated, radiation-curable double bonds and can optionally also cure thermally, and low-viscosity polyisocyanate mixtures or secondary p... | 01/29/2008 |
| 7060817 | Sulfonamide anions as catalysts for NCO oligomerization The present invention relates to the use of sulphonamide salts as catalysts for oligomerizing isocyanates and also to a process for NCO oligomerization using the catalysts of the invention. ... | 06/13/2006 |
| 7022874 | Preparation of biuret-containing polyisocyanates A process for the preparation of polyisocyanates which contain one or more biuret groups, by reacting a) an aliphatic or cycloaliphatic isocyanate containing two or more isocyanate groups (isocyanate a) with b) a tertiary alcohol or a mixtu... | 04/04/2006 |
| 6455729 | Polyisocyanate compounds, process for producing the same, and optical materials using the same The invention provides a novel polyisocyanate compound which is useful as a starting material for an optical material having a high refractive index, a low dispersion and excellent optical characteristics, and a process for producing this compound at good... | 09/24/2002 |
| 6432435 | Keratin-based tissue engineering scaffold Methods for producing thin keratin films, sheets, and bulk materials, and products formed using these methods. One method includes providing hair, reducing the hair such that the disulfide linkages are broken and free cysteine thiol groups formed, separat... | 08/13/2002 |
| 6420508 | Light-fast polyisocyanates having good solubility in non-polar solvents The present invention relates to polyisocyanate mixtures prepared from aliphatic and/or cycloaliphatic diisocyanates and having a) an average isocyanate functionality of at least 2.0, b) a content of isocyanate groups (calculated as NCO; molecular weight=42) o... | 07/16/2002 |
| 6313316 | Polyisocyanate compounds, process for producing the same, and optical materials using the same The invention provides a novel polyisocyanate compound which is useful as a starting material for an optical material having a high refractive index, a low dispersion and excellent optical characteristics, and a process for producing this compound at good... | 11/06/2001 |
| 6194603 | Polyisocyanate compound, process for producing the same and optical materials using the same A novel polyisocyanate compound, which compound is useful as a starting material for an optical material having excellent optical characteristics such as a high refractive index and a low dispersion, and a process for producing this compound at good effic... | 02/27/2001 |
| 5951911 | Low viscosity ethylenically unsaturated polyurethanes containing allophanate groups The present invention relates to ethylenically unsaturated polyurethanes which are substantially free from isocyanate groups and have a) a content of ଲ,γ-ethylenically unsaturated ether groups (calculated as C.dbd.C, MW 24) incorporated through allophan... | 09/14/1999 |
| 5874507 | Polyepichlorohydrin-based tri-block additive for surface modification of polymer films and articles The specification discloses a method and additive for increasing the surface activity of non-polar polymeric materials, and a non-polar polymeric material exhibiting increased surface activity. The invention employs an additive of the formula A-B-A1 | 02/23/1999 |
| 5756766 | Composition for optical materials and use thereof A composition for optical materials is herein disclosed which comprises the following two components (a) and (b): (a) a component containing at least one of poly isocyanates represented by the formula (1) ##STR1## wherein A is an alkanediyl group or ... | 05/26/1998 |
| 5739251 | Low viscosity, ethylenically unsaturated polyurethanes containing allophanate groups The present invention relates to ethylenically unsaturated polyurethanes which are substantially free from isocyanate groups and have a) a content of ଲ,γ-ethylenically unsaturated ether groups (calculated as C.dbd.C, MW 24) incorporated through allophan... | 04/14/1998 |
| 5703271 | Method of utilizing isocyanate linkage for forming multi-tier cascade polymers A method of synthesizing multitier cascade polymers and the polymers made thereby are formed by reacting at least one tier of a polymer with a functionalized isocyanate having the following formula: O.dbd.C.dbd.N--C(CH2 --R)3 with R being... | 12/30/1997 |
| 5625026 | Amid group-containing diisocyanates and amide group-containing epoxy resins An amide group-containing epoxy resin obtained by reacting an epoxy resin with an amide group-containing diisocyanate obtained by reacting a diisocyanate with a dicarboxylic acid gives a uniform cured article showing high adhesiveness and is usable as an ... | 04/29/1997 |
| 5580645 | Substrates treated with polyfluoro nitrogen-containing organic compounds A substrate having oil-, water- and soil-repellency and/or soil release properties is produced by treating the substrate with a polyfluoro organic compound having at least 1 urea linkage derived from: (A) at least 1 polyisocyanate which contains at least ... | 12/03/1996 |
| 5565564 | Polyfluoro organic trimer compounds having urea linkage Polyfluoro organic compound having at least one urea linkage derived from: (1) at least one polyisocyanate containing at least three isocyanate groups, (2) at least one fluorochemical compound which contains per molecule (a) a single functional group havi... | 10/15/1996 |
| 5481027 | Fluorocarbamate soil-release agents Urea linkage-containing alkoxypolyoxyalkylene fluorocarbamates prepared by reacting (a) at least one polyisocyanate which contains at least three isocyanate groups with (b) at least one fluorochemical reagent which contains one functional group which has ... | 01/02/1996 |
| 5414111 | Polyfluoro nitrogen-containing organic compounds Polyfluoro organic compound having at least one urea linkage derived from: (1) at least one polyisocyanate containing at least three isocyanate groups, (2) at least one fluorochemical compound which contains per molecule (a) a single functional group havi... | 05/09/1995 |
| 5410073 | Manufacture of polyfluoro nitrogen containing organic compounds Process comprising (I) reacting (a) at least one polyisocyanate or mixture of polyisocyanates which contains at least three isocyanate groups per molecule with (b) a stoichiometric deficiency of at least one fluorochemical compound which contains per mole... | 04/25/1995 |
| 5250723 | High surface hardness transparent resin and polymerizable monomer A novel polymerizable monomer represented by the formula (I) useful as a raw material for the high surface hardness transparent resin. ##STR1## wherein R is an aliphatic residue having or not having an oxygen atom, an alicyclic ring, a heterocyclic r... | 10/05/1993 |
| 5021602 | Reactive compounds containing perfluorocyclobutane rings Novel compounds have at least one perfluorocyclobutane ring and at least two functional groups suitable for forming condensation polymers. Preferably the compounds have a structures represented by Formula II: ##STR1## wherein R and R' independently r... | 06/04/1991 |
| 5008447 | Process for the preparation of polyurethanes with liquid crystal properties and diisocyanates suitable for carrying out the process This invention relates to a process for preparing polyurethanes having liquid crystal properties comprising reacting, in proportions corresponding to an NCO/OH equivalent ratio of from about 0.9:1 to 1.1:1, an organic polyhydroxyl compound with an organic... | 04/16/1991 |
| 4980497 | Monomer of carbonate ester having isopropenylphenyl group Polyfunctional monomers are disclosed that yield transparent resins having high transparency and excellent surface hardness and heat resistance. The present polyfunctional monomers are represented by the general formula (I): ##STR1## wherein R r... | 12/25/1990 |
| 4855490 | Liquid polyisocyanate adduct mixtures possessing good compatibility with apolar solvents The present invention relates to a polyisocyanate adduct mixture which at a 100% solids concentration has an isocyanate content of about 4 to 19 weight percent and is liquid at room temperature. The adduct mixture is prepared from a biuret-containing poly... | 08/08/1989 |
| 4748226 | Method of preparation of novel 2-(alkoxymethyl)-pentane-1,5-diisocyanates, 2-(alkoxymethyl)-pentane-1,5-diurethanes, and 2-(alkoxymethyl)-pentane-1,5-dicarbamic acid chlorides and their uses This invention relates to novel 2-(alkoxymethyl) pentane-1,5-diisocyanates, 2-(alkoxymethyl)-pentane-1,5-diurethanes, and 2-(alkoxymethyl)-pentane 1,5-dicarbamic acid chlorides having the structure: ##STR1## in which R is a straight chain or branched... | 05/31/1988 |
| 4657940 | 4,4'-diisocyanto-phenylbenzylether, a process for the preparation thereof and use in the production of polyurethane plastics The present invention is directed to 4,4'-diisocyanato phenylbenzylether, its method of production by reaction of the corresponding diamine with phosgene and the use of the diisocyanate for the production of polyisocyanate polyaddition products, preferabl... | 04/14/1987 |
| 4387058 | Carbamic acid derivatives Novel phenyl and naphthyl esters of 2-(1-oxo-alkoxy)ethyl carbamic acids are prepared. The compounds are useful as pharmacological and agricultural agents.... | 06/07/1983 |
| 4387057 | New diisocyanates containing sulfur and a process for their preparation The invention is directed to new sulfur-containing diisocyanates in which a mercapto, sulfoxo or sulfone group joins two aromatic nuclei together or joins an aromatic nucleus to an aliphatic group and in which at least one of the aromatically bound isocya... | 06/07/1983 |
| 4376193 | Aryl amine terminated polysulfide polymers, related compounds and processes for their preparation Fully and partially aryl amine terminated polysulfide polymers and processes for their preparation and use are disclosed. The fully aryl amine terminated products are curable with isocyanates to high molecular weight polymers and are thus useful in moldin... | 03/08/1983 |
| 4355138 | Polyisocyanate adducts with apolar solvent compatibility and good storage stability The present invention is directed to light stable polyisocyanate adduct mixtures with an average functionality greater than 2.0 and an isocyanate content of between about 4 and 19 percent by weight based on solids, which has good compatibility with apolar... | 10/19/1982 |
| 4313764 | Isocyanate polyoxyalkylenes The isocyanate polyoxyalkylenes having the formula: wherein E is --NCO or an amino group; A, C and D represent lower alkylene of 2 to 4 carbon atoms; B is alkylene of 2 to 8 carbon atoms; y and z are each integers having a value of 0 to 50 and x is an integer ... | 02/02/1982 |
| 4282167 | Conversion of amides to isocyanates via phase transfer catalysis The present invention is a method of subjecting amides to a modified Hofmann reaction using a 2-phase aqueous/organic system. The Hofmann reaction is modified in the sense that the product is an organic isocyanate rather than an amine. Generally, the reac... | 08/04/1981 |
| 4276228 | 1,6,11-Undecane triisocyanate There is provided a novel aliphatic triisocyanate, 1,6,11-undecanetriisocyanate having the formula, ##STR1## and a method for production of the same. The novel triisocyanate is produced by reacting 1,6,11-undecanetriamine or its salts with phosgene.... | 06/30/1981 |
| 4250105 | Production of aliphatic compounds containing isocyanato and hydroxyl functionality Aliphatic compounds containing isocyanato and hydroxyl functionality are formed by reacting the alkali metal salt of a dihydroxy-substituted aliphatic compound with cyanogen halide producing a monomeric product containing both cyanato and hydroxyl functio... | 02/10/1981 |
| 4148819 | Aliphatic diisocyanates Covers a diisocyanate having the following structural formula: ##STR1## WHERE X IS AN AVERAGE NUMBER RANGING FROM ABOUT 6 TO 50, AND Y AND Z ARE AVERAGE NUMBERS RANGING FROM ABOUT 1 TO ABOUT 20, WITH THE SUM OF Y AND Z BEING FROM ABOUT 6 TO ABOUT 40.... | 04/10/1979 |
| 4051166 | Araliphatic diisocyanates Novel araliphatic diisocyanates having the formula are disclosed wherein X is oxygen or a single bond and Ar is an arylene radical. The araliphatic diisocyanates are prepared from well known and readily obtainable starting materials. When X represents a single... | 09/27/1977 |
| 4028392 | Isocyanate prepolymers An isocyanate prepolymer represented by the formula ##STR1## wherein n is an integer of 1 to 6, R', R" and R'", which may be the same or different, each represents a divalent aliphatic, araliphatic, aromatic or acyclic group which may contain a ... | 06/07/1977 |
| 3998866 | Thioether propyl isocyanates Novel thioether isocyanates and isothiocyanates are produced by the addition of thiols to the olefinic bonds of allyl isocyanates and isothiocyanates. They are useful as pesticides, especially as post-emergence herbicides, and as polymer intermediates.... | 12/21/1976 |
