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7576235 |
Processes for preparing bis(urea-urethane) compounds
Processes for preparing bis(urea-urethane) compounds
wherein R 1 is alkyl, aryl, arylalkyl, or alkylaryl, R 2 is alkylene, arylene, arylalkylene, or alkylarylene, R 3 is alkylene, arylene,...
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7553921 |
Polyether polyol composition and use thereof
A polyether polyol composition, the reactivity of which with a polyisocyanate can be controlled, to thereby obtain an isocyanate group-terminated prepolymer having excellent storage stability. A...
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7553906 |
Dual cure systems
An organic polyisocyanate with at least one unsaturated functional group is capable of copolymerizing when exposed to actinic radiation. The polyisocyanate comprises structural units with the...
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7520222 |
Phase change ink formulation containing a combination of a urethane resin, a mixed urethane/urearesin, a mono-amide and a polyethylene wax
Phase change ink carrier compositions comprising an admixture of (1) at least one urethane resin; and/or (2) at least one mixed urethane/urea resin; and/or (3) at least one mono-amide; and/or (4)...
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7468454 |
Amino-functional polyurethane prepolymers and a process for their preparation
The present invention relates to a process for preparing amino-functional polyurethane prepolymers by
a) preparing an NCO-functional polyurethane prepolymer by reacting an excess of one or...
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7339020 |
High-functionality polyisocyanates
High-functionality polyisocyanates are prepared by a process which comprises
(i) preparation of an addition product (A) which contains one group which is reactive toward isocyanate and at...
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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...
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7312244 |
Polyamine analog-amino acid conjugates useful as anticancer agents
Conjugates in which polyamine analogs are conjugated to an amino acid are provided, as well as compositions comprising these conjugates. Methods of using these conjugates as anticancer treatments...
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7253296 |
Acylated aminopropanediols and analogues and therapeutic uses thereof
The invention relates to novel acylated aminopropanediols and the nitrogen and sulfur analogues thereof, pharmaceutical compositions comprising same, therapeutic uses thereof, in particular for the...
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7220814 |
Hydrophilicized blocked polyisocyanates
The present invention relates to new hydrophilicized blocked polyisocyanates, a process for preparing them and their use.
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7199207 |
Neutral-coloured 1K polyurethane adhesive
A polyurethane prepolymer obtainable by reacting at least one aromatic polyisocyanate having symmetrical substitution of NCO groups and at least one aromatic polyisocyanate having asymmetric...
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7176271 |
Method for the production of highly functional, highly branched polyureas
A process for preparing high-functionality, highly branched polyureas comprises the steps a) reaction of an at least bifunctional capped diisocyanate or polyisocyanate with at least one at least...
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7141616 |
Radically curable urethane prepolymers and their use in dental materials
The invention relates to urethane prepolymers, obtainable by reaction of:
(A) 15 to 85 wt.-% of one or more α,ω-terminated poly(meth)acrylate diols, (B) 0 to 30 wt.-% of one or more...
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7135128 |
Polyurethane compositions with a low content of diisocyanate monomer(s)
At least one isocyanate-reactive monomer is reacted with an excess of molten monomeric diisocynate to produce at least one reaction product and a maximum of 0.5 wt % of free isocyanate groups. The...
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7129312 |
Adhesion promoters for monomer-free reactive polyurethanes
Polyurethane compositions are produced in a two-stage method. In a first step, a diol component with a molecular weight of less than 2000 is reacted with a monomeric diisocyanate with a molecular...
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7074852 |
Blocked polyisocyanates
Blocked polyisocyanates and one-component stoving systems containing these blocked polyisocyanates, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and...
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7071242 |
Process for the production of polyurethane di(meth)acrylates
A process for the production of polyurethane di(meth)acrylates in which a diisocyanate component, a diol component and hydroxy-C2–C4-alkyl (meth)acrylate in the molar ratio x:(x−1):2 are...
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7049460 |
Selective inhibitors of the urokinase plasminogen activator
The present invention relates to novel selective inhibitors of the urokinase plasminogene activator (uPA, EC 3.4.21.31) of the aryl guanidine type.
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7034185 |
Colorant precursor compositions
Disclosed are colorant precursor compounds of the formula
wherein R is an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, and wherein R can be joined to the phenyl moiety...
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7033522 |
Pulverulent, water-dispersible, blocked polyisocyanate adducts, a process for the preparation and their use
A blocked polyisocyanate adduct including 5 to 95% by weight of at least one isocyanate component having at least one NCO group, the isocyanate component selected from the group consisting of...
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7022871 |
Process for the synthesis of polycarbamates
Process for the synthesis of polyurethane derivatives from aromatic polyamine compounds. The method involves the reaction of an aromatic polyamine compound with CO and O 2 in the presence of a...
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7022767 |
Etherified carbamate crosslinking agents and their use in curable compositions, particularly film-forming compositions
The present invention provides a composition of matter having the structure:
where Q is a multi-valent organic moiety containing isocyanurate functionality; X is H, —CH 2 OH, or —CH 2...
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6991746 |
Polymeric allophanates of diphenylmethane diisocyanate, perpolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof
The present invention relates to a new high functionality MDI. In particular, this invention relates to polymeric allophanates based on diphenylmethane diisocyanate having an NCO group content of...
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6930196 |
Polyurethane hydrogel contact lens
A prepolymer is prepared by reacting a mixture containing (a) at least one multifunctional compound, (b) at least one diisocyanate, and (c) at least one diol. The diol has a weight average...
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6894139 |
Catalysts, in particular for the preparation of polyisocyanate polyadducts
Catalysts contain, as structural units, at least one tertiary amino group and at least one group which, after its decomposition, is capable of complexing or protonating the tertiary amino group.
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6887399 |
Polymeric allophanates of diphenylmethane diisocyanate, prepolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof
The present invention relates to a new high functionality MDI. In particular, this invention relates to polymeric allophanates based on diphenylmethane diisocyanate having an NCO group content of...
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6852823 |
Polyurethane and polyurethane-urea elastomers from polytrimethylene ether glycol
Polyurethanes or polyurethane-ureas prepared from: (a) polytrimethylene ether glycol having a number average molecular weight in the range of about 1,000 to about 4,000 and unsaturated end groups...
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6843933 |
Blocked polyisocyanates
Blocked polyisocyanates, their preparation and use in one-component coating materials. In organic polyisocyanates having at least two isocyanate groups, the isocyanate groups are blocked with OH...
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6827875 |
Cyclic ketones as blocking agents
The present invention relates to new blocked polyisocyanates with which high-grade, emission-free coatings and lacquer coatings with reduced yellowing values can be obtained, to a method of...
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6811833 |
4-membered ring compound and optical phase optical retardation plate using the same
A 4-membered compound is represented by the following formula (I) is disclosed (in the formula, X 1 and X 2 each independently represent an oxygen atom, a sulfur atom or a substituted or...
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6809126 |
Solid, radiation-curing powder coating binders and a process for preparing the same
The present invention relates to powder coating binders containing polyurethanes having (meth)acryloyl groups which are applied onto a substrate, fused with heat and cured by electromagnetic...
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6797799 |
High 2,4′-diphenylmethane diisocyanate content prepolymers
The present invention provides NCO prepolymers comprising the reaction product of (1) an allophanate-modified diphenylmethane diisocyanate having an NCO group content of 12 to 32.5% by weight and...
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6777524 |
Polyether polyurethane
Disclosed is a polyether polyurethane comprising (A) at least one polyisocyanate having two or more isocyanate groups, which is selected from the group consisting of an aromatic polyisocyanate and...
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6767958 |
Modified polyisocyanates
The present invention relates to a modified polyisocyanate which is the reaction product of a polyisocyanate with 2-(cyclohexylamino)-ethanesulfonic acid and/or 3-(cyclohexylamino)-propanesulfonic...
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6753386 |
Polyurethane polyols and coatings thereof having reduced viscosity
The present invention relates to a film forming composition, a method of forming the composition, and application of the composition to coating formulations which provide a cured coating having...
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6743374 |
Self-emulsifiable polyisocyanate with high functionality and process for producing the same
A self-emulsifiable polyisocyanate with high functionality, having the average number of functional groups in 4.3 or more and a viscosity of 8,000 mPa·s (at 25° C.) or less, which is obtained by...
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6710157 |
Polycarbamates and method for the production thereof
The invention relates to polycarbamates of the formula I in which R and R′ are identical or different and are alkyl groups having 1-4 carbon atoms and n is a number from, on average, 2 to 5.
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6710151 |
Terminal-blocked isocyanate prepolymer having oxadiazine ring, process for producing the same, and composition for surface-coating material
The end-blocked isocyanate prepolymer having an oxadiazine ring according to the present invention is characterized in that at least one of isocyanate groups of a NCO-terminated isocyanate...
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6683151 |
Supramolecular compound
The invention relates to a compound comprising a reaction product of (A) an isocyanate functional compound of which at least 40 wt. %, relative to the total amount of (A), has a molecular weight of...
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6639040 |
Continuous process for the production of MDI allophanates
This invention relates to a continuous process for the production of allophanate modified diphenylmethane diisocyanates having an NCO group content of 19 to 32% and an urethane content of less than...
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6630599 |
Process for preparing derivatives of isopropenyl-α, α-dimethylbenzyl isocyanate
A process for preparing blocked derivatives of m- or p- isopropenyl-α,α-dimethylbenzyl isocyanates, comprising reacting a meta- or a para-isopropenyl-α,α-dimethylbenzyl carbamate ester with...
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6624280 |
OLIGOMERIC AND HIGH-MOLECULAR CONVERSION PRODUCTS OF ALLOPHANIC ACID ESTERS WITH NUCLEOPHILIC COMPOUNDS AND LOW-MOLECULAR, OLIGOMERIC AND HIGH-MOLECULAR COMPOUNDS WITH ALLOPHANATE SIDE AND/OR TERMINAL GROUPS, AND THE USE THEREOF
Oligomeric and high molecular mass products of reaction of alkyl and aryl allophanates with nucleophilic compounds, and also low molecular mass, oligomeric and high molecular mass compounds...
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6624277 |
Polyurethane polyol compositions and coating compositions comprising the same
The present invention relates to polyurethane polyol compositions comprising the reaction product of a polyisocyanate, a polyol, and a Guerbet alcohol having at least 12 carbon atoms or a Guerbet...
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6624240 |
Low molecular weight polyurethane resins
Disclosed is a polyurethane resin having a number average molecular weight of up to 5,000 which is prepared by reacting a diisocyanate compound with at least one monomer diol compound and...
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6620228 |
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...
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6617468 |
Rheologically active urea urethane compounds
The invention relates to a process for preparing a solution which comprises urea urethanes and is effective as a thixotropic agent, which involves reacting at least two structurally different...
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6617413 |
Coating agents which can be hardened by the addition of isocyanate groups as well as by the radiation-induced addition of activated c-c double covalent bonds
Compounds having isocyanate groups with or without blocking, allophanate groups and free-radically polymerizable C—C double bonds, the C—C double bonds being in activated form by virtue of a...
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6613866 |
Urethane surfactants and their use in personal care formulations
The present invention is directed to monomeric and polymeric compositions based upon polymeric urethane surfactants which are derived from linear, branched, or aromatic compounds of synthetic or...
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6613862 |
Treatment of fibrous substrates to impart repellency, stain resistance, and soil resistance
A process is described which imparts exceptional antisoiling, anti-staining and repellent properties to carpets. The process makes use of a water-based exhaustion process wherein the water-based...
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6610747 |
Phenoxybenzylamine derivatives as SSRIs
A compound of general formula (I) wherein R 1 and R 2 are H, C 1 -C 6 alkyl or (CH 2 ) d (C 3 -C 6 cycloalkyl) wherein d=0, 1, 2 or 3; or R 1 and R 2 together with the nitrogen to which they...
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