| Patent Number |
Title Of Patent |
Date Issued |
| RE35706 |
Lipophila derivatives of muramylpeptides having properties of activating macrophages and composi |
December 30, 1997 |
| The invention relates to muramyleptide derivatives resulting essentially from the conjugation or the coupling, as the case may require, through an arm, between a muramylpeptide and a group containing two atoms contiguous with one another to each of which is attached a lipophile chain com |
| H1056 |
Tripeptide, its preparation and use |
May 5, 1992 |
| A tripeptide having the following composition:as well as a process for its preparation. The tripeptide may contain protecting groups on at least one of the amine functions and on the C-terminal acid function. |
| 7297752 |
Method for catalytic dimerization of isocyanates |
November 20, 2007 |
| The invention concerns a method for preparing polyisocyanates by cyclodimerization of isocyanate functions borne by initial monomer isocyanates. The invention is characterised in that it comprises steps which consist in: a) providing a reaction medium comprising initial monomer isocy |
| 7297746 |
Color stability of isocyanates |
November 20, 2007 |
| A hardener composition for use as a component of a two component polyurethane coating composition, comprising a polyisocyanate, a catalyst for promoting reaction of the polyisocyanate with a reactive hydrogen compound, and one or more antioxidants selected from: a first antioxidant c |
| 7288213 |
Method for preparing low viscosity tricondensate polyfunctional isocyanates |
October 30, 2007 |
| A method is described for preparing a tricondensate polyfunctional isocyanate composition, preferably having at least an isocyanurate and/or biuret group, which includes adding to a tricondensate polyfunctional isocyanate, or a mixture of different tricondensate polyfunctional isocya |
| 7226545 |
Isocynate composition comprising a masked isocyanate and a nonmasked and their use in a coating |
June 5, 2007 |
| The invention concerns an isocyanate composition useful for applying powder paints. Said composition is characterized in that it contains a masked isocyanate compound and an unmasked cycloaliphatic isocyanate compound. The invention is applicable in the chemistry of paints. |
| 7163995 |
Low-viscosity polyisocyante composition having high functionality and method for preparing same |
January 16, 2007 |
| The invention concerns a polyisocyanate composition having high functionality, obtained by polycondensation of diisocyanate or triisocyanate monomers, comprising: (a) 0.5 to 30 wt % of compounds bearing a single uretidinedione function; (b) 0.5 to 45 wt. % of compounds bearing a sing |
| 7115770 |
Use of tin derivatives as catalysts |
October 3, 2006 |
| The invention concerns the use as catalyst for transforming carbamates of compounds corresponding to the general formula (I): --Sn (X) (X') wherein: X' is selected among chloride, bromide, iodide, thiocyanate radicals, sulphonate radicals, advantageously perfluorinated on the carbon |
| 7091341 |
Catalyst and a method for the trimerization of isocyanates |
August 15, 2006 |
| A method is described of preparing (poly)isocyanurate polyisocyanates by catalytic cyclotrimerization of isocyanates. A catalytic system is used which includes a cyclotrimerization catalyst based on a quatemary ammonium salt and imidazole as a cocatalyst. |
| 6998364 |
Process for the formation of urethane via transcarbamation |
February 14, 2006 |
| The invention concerns a novel catalyst for forming urethanes. Said catalyst is characterized by the general formula: MY.sub.3-q[Z].sub.q, wherein: Z is the radical corresponding to the anion of a super acid whereof the Hamett constant is at least equal to 13 and advantageously more |
| 6965007 |
Mixed masked (poly)isocyanates |
November 15, 2005 |
| A composition of at least partially masked isocyanates. The isocyanates are masked by at least two different masking agents, selected such that in the octanol test at 110.degree. C., the ratio: D=percentage in equivalents of masking agents unblocking first at 110.degree. C./percentage in |
| 6946538 |
Catalyst for isocyanate condensation, composition containing same, method for use, and resulting |
September 20, 2005 |
| The invention concerns a method for catalytic (cyclo)condensation of monomer isocyanates, characterised in that it comprises: a) reacting starting monomer isocyanates with a catalyst comprising a mineral or organic salt of a compound of formula (I), wherein Y.sup.- is selected among: |
| 6936677 |
(Cyclo)condensation of isocyanate compounds |
August 30, 2005 |
| The invention concerns the use of a compound comprising a nitrogenous heterocyclic group with five cyclic members including, at least two nitrogen atoms, one of the nitrogen atoms bearing a hydrogen atom to promote the opening/closing reaction of uretidione cycles in the presence of |
| 6858668 |
Method for masking polyisocyanates in emulsion |
February 22, 2005 |
| This invention relates to a process for the preparation of aqueous emulsions of blocked (poly)isocyanates, this process comprising the steps consisting successively in: a) placing an isocyanate composition containing free isocyanate functions in contact with at least one blocking agen |
| 6762272 |
Compositions useful for obtaining high gloss coatings, methods of using such compositions and co |
July 13, 2004 |
| Provided is a composition useful for obtaining a high gloss coating, for example, a high gloss paint. The composition includes an isocyanate which is at least partially masked by one or more masking agent, and having a degree of liberation with respect to the masking agent at 120 .degree |
| 6730405 |
Polyisocyanate composition of low viscosity having a high functionality and preparation process |
May 4, 2004 |
| This invention relates to a polyisocyanate composition having a mean functionality of greater than 3, obtained by polycondensation of diisocyanate or triisocyanate monomers.The invention also relates to a reactive coating composition comprising the isocyanate composition defined above an |
| 6653432 |
Condensation polymerization method for isocyanates |
November 25, 2003 |
| The invention concerns a (cyclo)trimerisation method for isocyanates having at least two isocyanate functions, characterised in that it comprises: a) reacting initial isocyanate monomers having at least two isocyanate functions, optionally in the presence of other monomers reactive with |
| 6649557 |
Use of tin derivatives as latent polycondensation catalysts, and premix containing them |
November 18, 2003 |
| Tin derivatives for use as oxygen-activated latent polycondensation catalysts. According to the invention, said tin derivatives have at least one tin-tin bond of the formula (I): R.sub.1 --Y.sub.n --R.sub.4 wherein R.sub.1 and R.sub.4 which can be the same or different, are selected from |
| 6642382 |
Method for obtaining slightly colored branched polyisocyanate(s), and the resulting composition |
November 4, 2003 |
| The invention concerns a method for cyclotrimerization of isocyanate functions by action of a catalyst based on quaternary ammonium or phosphonium. The invention is characterised in that said isocyanate functions are branched and said onium ions are selected among those whereof the t |
| 6635761 |
Catalyst and method for trimerization of isocyanates |
October 21, 2003 |
| This invention relates to the use as catalyst for the cyclotrimerization reaction of isocyanates of a hydrogencarbonate of a cation which either as it is or in the form complexed with a complexing agent has an average molecular or ionic radius of more than 1 .ANG., preferably greater tha |
| 6627725 |
Composition which is useful for obtaining a matt or satin coating, use of this composition and c |
September 30, 2003 |
| The present invention relates to a composition, particularly useful in paint. This composition is defined in that it contains, for successive or simultaneous addition: an isocyanate which is at least partially masked, having a glass transition temperature (sometimes denoted by the abb |
| 6492456 |
Method for separating a compound obtained by polymerization of non-transformed monomer isocyanat |
December 10, 2002 |
| This invention relates to a process for separating one (or more) oligomeric or polymeric compound(s) (A) obtained by polymerization of isocyanate monomers (A.sub.1) or copolymerization of isocyanate monomers with another polymerizable compound (A.sub.2), in particular a polyol, the said |
| 6482914 |
Isocyanates modified to give them a surfactant property, composition containing them and coating |
November 19, 2002 |
| The invention concerns a compound of formula (I) ##STR1##in which m is to 0 or 1 Iso is the (poly)isocyanate radical (after elimination of an isocyanate function); R.sub.10 is selected among: a negative charge; a hydrocarbon-based radical (i.e. a residue containing hydrogen and carbo |
| 6291624 |
Composition which is useful for obtaining a matt or satin coating, use of this composition and c |
September 18, 2001 |
| The present invention relates to a composition, particularly useful in paint. This composition is defined in that it contains, for successive or simultaneous addition:an isocyanate which is at least partially masked, having a glass transition temperature (sometimes denoted by the abbrevi |
| 6217941 |
Isocyanates modified for being provided with surfactant property, composition containing same, r |
April 17, 2001 |
| The invention concerns a compound of formula (I) ##STR1##in which m is to 0 or 1 Iso is the (poly)isocyanate radical (after elimination of an isocyanate function); R.sub.10 is selected among: a negative charge; a hydrocarbon-based radical (i.e. a residue containing hydrogen and carbo |
| 6187711 |
Use of tin derivatives as latent polycondensation catalysts, and premix containing them |
February 13, 2001 |
| Tin derivatives for use as oxygen-activated latent polycondensation catalysts. Said tin derivatives having a formula R.sub.1 -Y.sub.n -R.sub.4, wherein R.sub.1 and R.sub.4 together form a divalent group or a single bond which insures the formation of a ring with n being 5, 6 or 7, th |
| 6180743 |
Isocyanate masking procedure, use of oximes in isocyanate masking, masked isocyanates and their |
January 30, 2001 |
| This invention is aimed at a family of masked isocyanate, advantageously masked diisocyanate, and preferably masked polyisocyanate. This isocyanate is defined in that it carries at least one masked isocyanate function obtainable through the action on an isocyanate of an oxime in which th |
| 6156889 |
Reagent useful for cleaving a protected functional group |
December 5, 2000 |
| The subject matter of the present invention relates to a reagent and a process useful for cleaving a functional group protected by an alkoxycarbonyl group during an organic synthesis. This reagent comprises: a) an aqueous phase; b) a catalyst comprising at least one group VIII elemen |
| 5847117 |
Reagent and catalytic process useful for cleaving a protected functional group |
December 8, 1998 |
| The subject matter of the present invention relates to a reagent and a process useful for cleaving a functional group protected by an alkoxycarbonyl group during an organic synthesis. This reagent comprises: a) an aqueous phase; b) a catalyst comprising at least one group VIII elemen |
| 5773617 |
Deallylation reagent and deallylation method using said reagent |
June 30, 1998 |
| The present invention relates to a reagent and to a process which are useful, when carrying out an organic synthesis, for cleaving an allylic group from a function which is protected with the latter.This reagent is defined in that it contains:a) a solvent system;b) a catalyst containing at l |
| 5712367 |
Process for the solubilization of peptides and process for peptide synthesis |
January 27, 1998 |
| A process is disclosed for making peptides soluble in a water-immiscible organic solvent, comprising linking a lipophilic group with an amide or ester bond to the terminal carboxyl group of said peptide; when the lipophilic group is linked to L-serine, a molecule is obtained with a s |
| 5688902 |
Process for the preparation of polyimides or of their biodegradable polypeptide hydrolysates |
November 18, 1997 |
| Process for the preparation of polyimides or of their polypeptide hydrolysates which are at least 80% biodegradable, by thermal polycondensation of at least one amino acid, optionally followed by hydrolysis, the thermal polycondensation step being carried out in the presence of at le |
| 4939122 |
Lipophile derivatives of muramylpeptides having properties of activating macrophages and composi |
July 3, 1990 |
| The invention relates to muramyleptide derivatives resulting essentially from the conjugation or the coupling, as the case may require, through an arm, between a muramylpeptide and a group containing two atoms contiguous with one another to each of which is attached a lipophile chain com |
