Bizarre Patents
A portable partition for use in an automobile having a seat with a seat bench and a seat backrest.
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 |
| 7777054 | Uretonimine-modified isocyanate composition and method of forming the same A uretonimine-modified isocyanate composition has reduced color. The uretonimine-modified isocyanate composition comprises a polyisocyanate composition having two or more isocyanate groups and comprising 4,4′-diphenylmethane diisocyanate (MDI) and a catalyst for c... | 08/17/2010 |
| 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 |
| 7317112 | Catalysts for selective isocyanate dimerization A method of dimerizing isocyanates using sulphonamide anions as a dimerization catalyst for the isocyanates and also to a process for preparing oligomeric isocyanates using such catalysts. ... | 01/08/2008 |
| 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 |
| 6987158 | Polyadducts containing uretidone groups Polyaddition compounds containing uretdione groups prepared by reacting uretdione polyisocyanates formed from diisocyanates having exclusively secondary- and/or tertiary-attached isocyanate groups with a molar fraction of isocyanurate structures, based on the sum of... | 01/17/2006 |
| 6590098 | Method of preparing aliphatic polyisocyanates with uretdione, isocyanurate and iminooxadiazindione structures The invention relates to a method of preparing an aliphatic polyisocyanate by conversion of an aliphatic diisocyanate to a polyisocyanates in the presence of a catalyst, wherein the catalyst contains a saline compound having 5 to 97.1 wt. % of a 1,2,3- an... | 07/08/2003 |
| 6489503 | Storage stable methylene bis(phenylisocyanate) compositions The present invention provides a liquid methylene bis(phenylisocyanate) composition including a high concentration of methylene bis(phenylisocyanate) which has an improved storage stability. The invention further provides a method of making the liquid met... | 12/03/2002 |
| 6479613 | Process for the preparation of polyaddition products containing uretdione groups, and their use in polyurethane coating systems The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which t... | 11/12/2002 |
| 6452003 | Process for preparing low-odor and storage-stable monomer-containing polyisocyanurates from isophorone diisocyanate The present invention provides a process, which includes: partially trimerizing isophorone diisocyanate in the presence of a catalyst having the formula: [R--NX3 ].sym. Y.crclbar. wherein R and X are butyl groups and Y- i... | 09/17/2002 |
| 6362359 | One-component thermoset coating compositions The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or... | 03/26/2002 |
| 6297343 | Powder coating crosslinking agents containing uretdione groups and free isocyanate The present invention relates to polyaddition compounds, which are solid below 40° C. and liquid above 125° C., are prepared by the reaction of an isocyanate component containing uretdione groups with a polyol containing ester and/or carbonate groups, o... | 10/02/2001 |
| 6180745 | Moisture-curable compositions containing isocyanate and succinyl urea groups The present invention relates to moisture-curable compositions which have a) a content of (cyclo)aliphatically-bound isocyanate groups (calculated as NCO, MW 42) of 0.2 to 22% by weight and b) a content of succinyl urea groups (calculated as --NH--CO--N--, MW 57) ... | 01/30/2001 |
| 6150457 | One-component thermoset coating compositions The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate addu... | 11/21/2000 |
| 6120699 | Storage stable methylene bis(phenylisocyanate) compositions The present invention provides a liquid methylene bis(phenylisocyanate) composition including a high concentration of methylene bis(phenylisocyanate) which has an improved storage stability. The invention further provides a method of making the liquid met... | 09/19/2000 |
| 6077960 | Uretedione derivative, curable resin composition comprising the same, and process for producing the same A novel uretedione derivative used as a curing agent for aqueous-based polyurethane and a process for producing the same are disclosed. The uretedione derivative contains uretedione and aziridine functional groups which are active toward the amino and the... | 06/20/2000 |
| 5965565 | Piperidines promote release of growth hormone The present invention is directed to certain piperidines, pyrrolidines, and hexahydro-1H-azepines of the general structural formula: ##STR1## wherein B is selected from: ##STR2## and R1, R1a, R2a, R3a,... | 10/12/1999 |
| 5961878 | Amine-blocked polyisocyanates and their use in one-component stoving compositions The invention relates to non-crystallising, amine-blocked polyisocyanates, to the preparation thereof and to their in one-component polyurethane stoving compositions, in particular for coil-coating applications.... | 10/05/1999 |
| 5945531 | Polyisocyanates containing uretdione groups A polyisocyanate composition, comprising: A) from 55 to 87% by weight of a polyisocyanate which contains uretdione groups; B) from 10 to 30% by weight of blocking agent, C) from 3 to 30% by weight of polyol having more than two hydroxyl groups and/or chain ext... | 08/31/1999 |
| 5912314 | Reaction product of mixed uretdiones and a disecondary diamine A Polyaddition product, containing uretdione groups, which is obtainable by reaction of (A) a diisocyanate mixture which contains uretdione groups and comprises (1) at least 40 mol % to not more than 80 mol % of isophorone diisocyanate containing uretdion... | 06/15/1999 |
| 5856492 | Efficient synthesis of a chiral mediator An efficient method for the quantitative preparation and isolation of a compound of formula I ##STR1## or its enantiomer, a chiral mediator used in enantioselective synthesis.... | 01/05/1999 |
| 5750727 | Polyisocyanates containing uretdione groups A polyisocyanate composition, comprising: A) from 55 to 87% by weight of a polyisocyanate which contains uretdione groups; B) from 10 to 30% by weight of blocking agent, C) from 3 to 30% by weight of polyol having more than two hydroxyl groups and/or chain ext... | 05/12/1998 |
| 5750629 | Uretdione diisocyanates and a process for their production The present invention relates to a process for preparing pure bis(isocyanatoalkyl)monouretdiones corresponding to formula (I) ##STR1## wherein R represents identical or different, linear or branched alkyl groups having 4 to 9 carbon atoms, by oligome... | 05/12/1998 |
| 5684156 | Process for preparation of clonidine derivatives A novel process for preparing clonidine derivatives has been discovered which is shorter, less expensive and safer than previously known methods. A new thiourea complex has also been discovered which can be directly cyclized to produce the corresponding h... | 11/04/1997 |
| 5554711 | Polyisocyanate addition compounds containing cyanamide groups and their use The invention relates to reaction products prepared from (a) organic polyisocyanates, (b) 0.005 to 0.9 equivalents of a C6-24 alcohol per equivalent of NCO or latent NCO present in component (a), (c) 0.1 to 0.995 mol of cyanamide per equivalent of NCO or... | 09/10/1996 |
| 5508428 | Spiro compound A compound of formula I, having antibacterial activity and a pharmaceutical composition containing the compound of formula I: ##STR1## wherein Q represents a partial structure of formula II: ##STR2## wherein all substituents are defined in the s... | 04/16/1996 |
| 5409921 | Thiazetidinyl-terminated alkylamino ethynyl alanine amino diol compounds for treatment of hypertension Compounds characterized generally as thiazetidinyl-terminated alkylamino ethynyl alanine amino diol derivatives are useful as renin inhibitors for the treatment of hypertension. Compounds of particular interest are those of Formula I ##STR1## wh... | 04/25/1995 |
| 5315004 | Process for producing uretidione dimers of isocyanates using catalysts which are bound to inorganic matrices This invention relates to a process for preparing a dimer by the steps of: (a) cyclodimerizing a polyisocyanate in the presence of a dimerization catalyst which is covalently bound to an insoluble inorganic matrix by contacting said polyisocyanate with sa... | 05/24/1994 |
| 5217706 | Complexes and compositions for magnetic resonance imaging Novel magnetic resonance imaging agents comprise complexes of paramagnetic ions with hydrazide derivatives of polyaminocarboxylic acid chelating agents. These novel imaging agents are characterized by excellent NMR image-contrasting properties and by high... | 06/08/1993 |
| 5212301 | Substituted fluorobenzenes Introduction of a fluoro substituent into an aromatic ring adjacent an electron donating group is difficult producing mixed isomers and low yields of desired products. A process for the introduction of a fluoro substituent into a substantially adjacent po... | 05/18/1993 |
| 5196499 | Terminal silicone ester quaternary compounds The present invention relates to a series of novel silicone ester quaternary polymers which are substantive to fiber and provide outstanding softening properties to various fibers, hair and skin. The compounds of the present invention are prepared by the ... | 03/23/1993 |
| 5153294 | Silicone ester quaternary compounds The present invention relates to a series of novel ester containing quaternary silicone polymers, useful in softening hair, and fiber and conditioning skin. The compounds of the present invention are prepared by the esterification reaction of chloroacetic... | 10/06/1992 |
| 5149766 | Process for the preparation of uretdione group containing polyisocyanates The present invention relates to a process for the preparation of uretdione group containing polyisocyanates comprising reacting monomeric aromatic diisocyanates in the presence of 1,2-dimethylimidazole used as a catalyst in an inert organic solvent where... | 09/22/1992 |
| 5142054 | Optically pure 1,3-dioxenones, methods for preparing same and use thereof Disclosed are new 1,3-dioxenones having the formulae ##STR1## in an optically pure state, a process for preparing same and the use thereof.... | 08/25/1992 |
| 5103004 | N-sultamsulfonamides Heterocyclically substituted N-sultamsulfonamides, processes for their preparation and their use as herbicides and plant growth regulators. Compounds of the formula I or their salts ##STR1## wherein R1 and R2 denote H, halogen, alkyl... | 04/07/1992 |
| 5089471 | Peptidyl beta-aminoacyl aminodiol carbamates as anti-hypertensive agents Non-peptidyl compounds characterized generally as ଲ-aminoacyl aminodiol carbamates are useful as renin inhibitors for the treatment of hypertension.... | 02/18/1992 |
| 5077432 | Monobactam hydrazides containing catechol sulfonic acid groups Compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof, wherein R3 and R4 are the same or different and each is hydrogen or alkyl or R3 and R4 taken together with the nitrogen a... | 12/31/1991 |
| 5030724 | Monobactam hydrazides containing catechol sulfonic acid groups Antibacterial activity is exhibited by novel compounds having the formula ##STR1## or a pharmaceutically acceptable salt thereof. R3 and R4 are the same or different and each is hydrogen or alkyl or R3 and R4 ... | 07/09/1991 |
| 4996316 | Process for the preparation of tertiary N, N-dimethylamines A process for the preparation of tertiary N,N-dimethylamines by the reaction of primary amines, formaldehyde, and hydrogen under pressure and at elevated temperature in the presence of a nickel-containing hydrogenation catalyst in the liquid phase. The hy... | 02/26/1991 |
| 4968676 | Fungicidal cyclohexylamines Cyclohexylamines of the formula ##STR1## where X is a single bond or an alkylene chain, Y is hydrogen or an aryl, cyclohexyl, 4-cyclohexylcyclohexyl, perhydro-1- or 2-naphthyl or piperidyl radical, R1 and R2 are hydrogen, alkyl,... | 11/06/1990 |
| 4800077 | Guerbet quaternary compounds The present invention deals with novel quaternary compounds and their application as softening, anti-tangle, and conditioning agents. The properties of these novel quaternary compounds which make them well suited for these applications is their substantiv... | 01/24/1989 |
