Matches 101 - 150 out of 511 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
6036879 Viscosity-stable isocyanate-terminated prepolymers and polyoxyalkylene polyether polyols having improved storage stability  
Polyoxyalkylene polyols containing double metal cyanide complexes or residues thereof as are produced during the preparation of polyoxyalkylene polyols by the double metal cyanide complex catalyzed...
6034265 Process for the synthesis of aromatic urethanes  
A process for synthesizing aromatic urethanes, which entails: a) reacting an organic carbonate, in an amount which is equal to or greater than a stoichiometric amount, with an aromatic amine at...
6022444 Modified PMDI for faster press times or lower press temperatures and reduction of MDI from hot presses  
Isocyanate prepolymers which are useful as binders are made from a polyisocyanate mixture and a hydroxyl compound having at least about 1 hydroxyl group. The polyisocyanate mixture is made up of...
6005002 Nitrogen mustard prodrugs with novel lipophilic protecting groups, and processes for their production  
The invention provides compounds of formula (I) and (II) wherein X and Y are independently chlorine, bromine, iodine, a mesyl group CH 3 SO 3 or a tosyl group OSO 2 phenyl (wherein phenyl is...
5990340 Polyurethane polyolefins and prepolymers based on hydroxy functional polybutadiene  
A di-hydroxy-functionalized linear non-crosslinked polyolefin is disclosed having no pendant chain-branched groups which is prepared by reacting 1,4-diacetoxy-2-butene with 1,5-cyclooctadiene in...
5977398 Viscosity conditioner  
A viscosity conditioner is disclosed which is comprised of a compound represented by the following formula ##STR1## where R 1 to R 3 each are hydrocarbyl groups which may be identical or...
5973072 Polymeric vehicles which include a phenolic urethane reactive diluent  
The present invention is directed to a polymeric vehicle, the formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where...
5962721 Method for preparation of carbamates  
A method of preparing carbamates by reacting amine with alcohol and mixed gas of CO/O 2 in the presence of one or more catalyst selected from the group consisting of monovalent copper halide...
5955561 Hydroxy esters and amides derived from active ester urethanes and their use in film-forming compositions  
Novel hydroxy ester, hydroxy amide, and amide functional compounds are provided comprising the reaction product of: (a) an active ester functional material having the structure: ##STR1## wherein...
5952411 Compound bearing an urethane linkage which is an adduct of ricinoleic esters and an isocynate, useful as a plasticizer for polyvinylchloride (PVC) and a process for preparing such compound  
A novel compound bearing urethane linkage of formula as shown herebelow, which is an adduct of ricinoleic ester and isocyanate, useful as a plasticizer for polyvinylchloride (PVC) and a process for...
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%...
5936055 Acid functionalized polyurethane adducts  
Disclosed is an acid-funtionalized polyurethane adduct and a process for the preparation of such adduct. The adduct having a linear or preferably branched structure comprises a plurality of...
5925781 Prepolymers with low monomeric TDI content  
This invention relates to novel liquid, homogeneous toluene diisocyanate/polyether/polymethylene poly(phenylisocyanate) prepolymers having an NCO content of from about 2 to 16%, a viscosity or...
5883216 Blocked polyisocyanates containing amide/imide groups and their use in stoving lacquers  
The present invention relates to polyisocyanates containing i) 0.5 to 10 wt. % of amide and/or imide structural units (calculated as --CO--N, MW=42), ii) 5 to 20 wt. % of isocyanate groups...
5877334 Intermediates useful in solid phase synthesis method  
A solid phase synthesis method and intermediates useful in the process are disclosed for the preparation of diamino diol and diamino alcohol inhibitors of HIV protease.
5874580 Fluorescent perylene pigments  
Compounds of formula A(B) x , (I), wherein x is an integer from 1 to 4, A is the radical of a chromophore of the quinacridone, anthraquinone,...
5869734 Preparation of optically active (S)-(-) and (R)-(+)-deoxyspergualin and novel intermediates thereof  
A process for preparing optically active (S)-(-) and (R)-(+)-deoxyspergualin and salts thereof of the formula I ##STR1## by reacting a compound of formula II ##STR2## with a compound of formula III...
5849945 Aminotetralone derivatives and preparation process thereof  
The present invention pertains to a process for the preparation of Compound (4) through the below-described reaction route: ##STR1## wherein R 1 and R 2 each represents H, halogen, OH or C 1 -6...
5847134 Fluorocarbon-containing isocyanate derivatives and soil-resist agents  
Products prepared by reacting polyisocyanates with alkenyl or alkynyl compounds; then with perfluoroalkyl iodides & dehydroiodinating the product.
5847194 Carbamoylcarboxamides  
Carbamoylcarboxamides of the general formula I ##STR1## and their salts (R 1 is unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl or an unsubstituted or substituted...
5837873 Intermediates of retroviral protease inhibiting compounds  
A retroviral protease inhibiting compound of the formula A--X--B is disclosed. Also disclosed are a composition and method for inhibiting a retroviral protease and for treating an HIV infection....
5827827 HIV-1 protease inhibitors  
A series of novel oxirane derivatives, which are useful for inhibiting HIV are disclosed. Particularly of value are peptidomimetic compounds, containing a terminal epoxide group on a peptide or...
5827562 Sweetener salts  
The process of the present invention is conducted in a liquid medium and concerns the preparation of a sweetening salt as the reaction product from two sweetener components in which one component...
5821316 Polyurethane prepolymers for making elastomers having improved dynamic properties  
An isocyanate-terminated polyurethane prepolymer comprising the reaction product of a polyisocyanate and a polyol composition consisting essentially of a polyether polyol of 350-2000 equivalent...
5808131 Liquid urethane containing adduct  
Disclosed is a liquid urethane containing adduct; a process for the preparation thereof; and applications therewith. More specifically this invention relates to a stable adduct which is a liquid at...
5798409 Reactive two-part polyurethane compositions and optionally self-healable and scratch-resistant coatings prepared therefrom  
The present invention relates to two-part reactive polyurethane compositons and the cured coatings prepared therefrom. The invention also relates to particular compositions and cured coatings...
5783697 Preparation of vinyl carbamates  
Vinyl carbamate compounds are prepared by reacting appropriate secondary amines with carbon dioxide and acetylenically unsaturated compounds in the presence of a compound of a metal from the...
5782966 Isocyanate-derived materials for use in phase change ink jet inks  
Resins and waxes made by reacting selected nucleophiles, including alcohols and/or amines, with an isocyanate are disclosed. The order of addition of the isocyanate and the different nucleophiles...
5773469 Diaryl antimicrobial agents  
The invention relates to diaryl antimicrobial compounds of the general formula: ##STR1## where G, E L, J, q, m, X, Ar, W, p, n and A are as described herein, pharmaceutical compositions containing...
5756636 Isocyanate prepolymers produced from toluene diisocyanate residue dissolved in toluene diisocyanate  
A substantially solid free isocyanate prepolymer is made by reacting an isocyanate mixture which is made up of a toluene diisocyanate residue containing monomeric toluene diisocyanate and...
5747629 Low surface energy polyisocyanates and their use in one-or two-component coating compositions  
The present invention relates to polyisocyanate adducts containing allophanate groups, fluorine and optionally isocyanurate groups that are prepared by reacting compounds a) which i) are...
5747628 Polyisocyanates containing ether and urethane groups, a process for their preparation and their use in the production of polyurethane lacquers  
Polyisocyanates based on polyhydroxy polyethers and tolylene diisocyanate containing ether and urethane groups and having an isocyanate group content of from 11.8 to 14.4% by weight, an average...
5710191 Hydroxymethyl quinuclidine catalyst compositions for making polyurethane foams  
A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition...
5705593 Diphenylmethane diisocyanate based polyisocyanates containing allophanate groups and having blocked isocyanate groups  
The present invention relates to polyisocyanates prepared from diphenylmethane diisocyanate wherein at least 95% of the isocyanate groups are blocked with diethyl malonate and wherein the...
5703193 Removal of unreacted diisocyanate monomer from polyurethane prepolymers  
A process for reducing the amount of residual organic diisocyanate monomer in a polyurethane prepolymer reaction product mixture which comprises distilling the polyurethane prepolymer reaction...
5698731 Process for the production of aromatic carbamates  
A process is described for the preparation of aromatic carbamates in which an organic carbonate in a stoichiometric quantity or in a quantity higher than the stoichiometric value is reacted with an...
5696221 Polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties  
Elastomers with improved physical properties, particularly hardness and rebound, may be prepared by the diamine chain extension or moisture cure of low isocyanate group content, toluene...
5693849 Aqueous synthesis of iodopropargyl carbamate  
This invention is directed to a method for making an iodopropargyl carbamate in an aqueous reaction medium so as to yield a more pure and stable, e.g., U.V. resistant, product in a high yield, free...
5688875 Hydrophilic tetramethylxylylenecarbodiimide  
A hydrophilic tetramethylxylylenecarbodiimide represented by the following formula (1): ##STR1## wherein n is an average polymerization degree and is an integer of 1 to 30; R 1 is a residue of an...
5688988 Process for the procuction of aromatic urethanes  
A process is described for the preparation of aromatic urethanes in which organic carbonate in a stoichiometric quantity or in a quantity higher than the stoichiometric value is reacted with an...
5663435 Reaction products of aminoalkylenecarboxylic acids and mineral oil middle distillates which contain them  
Reaction products of amino-alkylenecarboxylic acids with polyoxyalkylene compounds are used as paraffin dispersants for mineral oil middle distillates.
5648445 Liquid 1,3-phenylene diisocyanate, 1,1'-biphenyl diisocyanate and 1,1'-oxy-bis-(isocyanato-benzene)  
Allophanate-modified 1,3-phenylene diisocyanates or 1,1-biphenyl diisocyanates or 1,1'-oxy-bis-(isocyanato benzenes) which are storage stable liquid at 25° C. are made by reacting the diisocyanate...
5646328 Process for removing by-products from diurethanes  
Low-boiling by-products are removed from diurethanes prepared by a phosgene-free process by carrier vapor distillation using alcohol vapor, preferably the vapor of the basic alcohol found in the...
5635542 Process for the production of hydroxyl-group-containing compounds from polyurethane polyurea and/or polyurea wastes  
The present invention relates to a process for the production of hydroxyl-group-containing compounds suitable for the polyisocyanate polyaddition process from polyurea and/or polyurethane polyurea...
5623085 Method for reducing microfoam in a spray-applied waterborne composition  
A method for reducing the amount of microfoam in a spray-applied clear waterborne composition is provided, the clear waterborne composition including an emulsion-polymerized addition polymer...
5610260 Polyisocyanate mixtures which are liquid at greater than 5° C  
The present invention relates to polyisocyanate mixtures which are reaction products of 4,4'-diphenylmethane diisocyanate as the isocyanate component, are liquid at greater than 5° C. and have an...
5606004 Lacquer polyisocyanates with aliphatically and aromatically bound isocyanate groups  
A process for preparing liquid lacquer polyisocyanates with aliphatically and aromatically bound isocyanate groups and an NCO content of 5 to 25 wt. % by trimerizing an isocyanate component A),...
5599926 A.sub.4 B.sub.6 macrotricyclic enantioselective receptors for amino acid derivatives, and other compounds  
The subject invention provides chiral receptor molecules having the structure: ##STR1## wherein A has the structure: ##STR2## and R 1 and R 2 are independently the same or different and are H, F,...
5597942 Carbodiimides and/or oligomeric polycarbodiimides based on 1 3-bis (1-methyl-1-isocyanatoethyl) benzene their use as hydrolysis stabilizers  
Novel carbodiimides and/or oligomeric polycarbodiimides containing terminal isocyanate, urethane and/or urea groups are obtainable, for example, by condensation of...
5571911 Method of purifying organic compounds using an enantioselective receptor  
The present invention relates to a composition having the general formula: ##STR1## wherein each of A, B, C, X, Y, and Z is independently O, NH, N(CH 2 ) m CH 3 , N(CO) (CH 2 ) m CH 3 , CH 2 ,...
Matches 101 - 150 out of 511 < 1 2 3 4 5 6 7 8 9 10 11 >