Abstract: The present invention relates to new cross-linking agents and thermosetting paints, which lead to improved properties such as scratch resistance of cured thermosetting paints or exhibit good solubility.

Abstract: A low VOC clear coat composition which comprises an epoxy compound, a melamine component and an aliphatic polyisocyanate having an average of 2 to 6 isocyanate functionalities, and optionally contains a catalyst (e.g., organotin catalysts, acid catalysts and combinations); a polyhydroxyl functional compound (e.g., polycarbonate polyol); or other additives (e.g., light absorbers and light stabilizers). Also disclosed is an article coated with the clear coat composition, a process of making the composition, and a process of applying the composition to, for example, an automobile body.

Abstract: An adhesive film for underfill which relaxes the stress formed in the wiring circuit substrate, semiconductor element and electrode parts for connection. The adhesive film is a quickly hardening type, and forms a highly heat resistant sealing resin layer quickly between the wiring circuit substrate and semiconductor element of a semiconductor device.

Abstract: 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 acidic cyclic ketones of the general formula (I). The blocked polyisocyanate system of the invention reacts without elimination of the blocking agent and possesses low crosslinking temperatures.

Abstract: Blocked polyisocyanates and one-component stoving systems containing these, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and elastomers. The blocked polyisocyanates are derived from polyisocyanates reacted with secondary amines and cationic, anionic and/or nonionic hydrophilizing agents such that they are incorporated into the polyisocyanate at a ratio of from 20:1 to 1:1.

Abstract: Blocked polyisocyanates and one-component stoving systems containing these, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and elastomers. The blocked polyisocyanates are prepared by reacting polyisocyanates with secondary amines.

Abstract: 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 producing them, and to the use thereof in one-component polyurethane systems, particularly as crosslinking agents in automobile primer surfacers.

Abstract: The invention relates to a method for the production of masked (poly)isocyanates using a masking agent with a C═N bond and a labile hydrogen atom on the &agr; atom relative to the nitrogen of the C═N group, characterised in comprising the following steps: a) preparation of a masking agent with a C═N bond and a labile hydrogen atom on the &agr; atom relative to the nitrogen of the C═N group which may be obtained by condensation of an aldehyde or ketone precursor with a nitrogen-containing precursor which has a functional group reactive towards the carbonyl moiety of the aldehyde or ketone, in an aqueous, organic or hydroorganic medium with liberation of water of condensation; b) in situ reaction of the masking agent with a (poly)isocyanate component for masking to give said (poly)isocyanates which are totally or partially masked.

Abstract: A solid isocyanate-based composition having a glass transition temperature of at least 30° C. is produced by at least partially blocking the isocyanate groups of a polyisocyanate with a compound corresponding to the specified Formula I. This blocked isocyanate composition is useful in the production of powder coatings which are capable of being cured at temperatures of from 80 to 220° C.

Abstract: Dual cure coating composition comprising resin solids, said resin solids being composed of (a) 30 to 90 wt. % of at least one hydroxy-functional polyester urethane having olefinic double bonds, (b) 0 to 60 wt. % of at least one binder other than the polyester urethane (a) and/or at least one reactive diluent, and (c) 10 to 50 wt.

Abstract: The curable coating compositions of the invention comprise a particulate component having at least one binder component (a) which is a solid at 75° F./24° C., and an additive component (b). The curable coating compositions further comprise a crosslinking component (c) reactive with the at least one binder component (a). Additive component (b) has from 12 to 72 carbon atoms, is substantially free of any heteroatoms, is not a crystalline solid at 75° F./24° C. and comprises a mixture of two or more structures selected from the group consisting of aliphatic structures for additive component (b), aromatic-containing structures for additive component (b), cycloaliphatic-containing structures for additive component (b), and mixtures thereof, wherein at least one of the two or more structures is either a cycloaliphatic-containing structure or an aromatic-containing structure.

Abstract: Coating materials curable thermally and with actinic radiation, comprising

Abstract: Polyurethane coatings which are the reaction product of A) an aliphatic, isocyanate-containing prepolymer having an isocyanate content of 1-8 wt. % and a free monomeric diisocyanate content of less than 2 wt. %, and containing 0.1 to 1.5 moles of per 1000 g of prepolymer of aliphatically bound uretdione and oxadiazinetrione groups, and B) a polyol component B) comprising at least 50 equivalent % of a compound corresponding to the formula HO—X—Y—X—OH where Y represents methylene, ethylene, —C≡C—, cyclohexylene-1,4, -1,3, -1,2, or phenylene-1,4, -1,3, -1,2 and X represents methylene, —OCH2CH2— (the oxygen being bound to the Y), or cyclohexylene-1,4, -1,3, -1,2, and where the equivalent ratio of the free NCO groups to isocyanate-reactive groups is 0.90 to 1.5. The coatings are applied to flexible substrates such as textile or leather by the casting or knife coating process by means of reactive compositions.

Abstract: The present invention relates to novel polyurethane prepolymers (PU prepolymers) of low viscosity containing NCO groups blocked with compounds containing phenol groups and to their use for producing polyurethane polymers. The PU prepolymers are prepared by reacting one or more diisocyanates or polyisocyanates with at least one isocyanate-reactive compound with a functionality of at least 1.5 to form an NCO-functional polyurethane prepolymer and subsequently blocking the free NCO groups with at least one hydrocarbon resin containing phenolic OH groups and/or one optionally substituted phenol in the presence of a catalyst which comprises at least one triorganoamine.

Abstract: A self-crosslinking, branched polyurethane preparable by reacting

Abstract: Novel one-component polyurethane systems, to their preparation and use for preparing paints, inks and adhesives. The one-component polyurethane systems include one or more organic and/or inorganic compounds of molybdenum and/or of tungsten in which the molybdenum and/or tungsten has an oxidation state of at least +4.

Abstract: The invention relates to polyurethane-polyurea dispersions, also called PU dispersion, which contain aralkylamine-blocked isocyanate groups, and to their preparation and use. This blocking agent ahs a significantly lower deblocking temperature as compared with the prior art. Coatings produced from this dispersion have high hydrolysis resistances. The arylamine-blocked isocyanate groups are composed of polyisocyanates, polymeric polyols having average molar weights of 400 to 6000, at least one blocking agent, and either or both of nonionically hydrophilicizing compounds or compounds having at least one ionic or potentially ionic group.

Abstract: The present invention provides a reaction product of reactants comprising:

Abstract: The invention relates to novel blocked polyurethane prepolymers, to a process for their preparation, to reactive systems prepared therefrom that cure at room temperature, and to their use.

Abstract: The invention relates to new blocked polyurethane prepolymers, a process for their production and reactive systems produced therefrom that harden at room temperature, and their use.

Abstract: This document discloses a clear, polymeric composition that provides both abrasion resistance and non-fogging properties. The composition may be applied to plastic or glass with or without the use of a solvent carrier, or may be cast into a molded article. The fully cured composition provides a fog-free surface that repels condensation while the interior of the polymeric deposition provides a hydrophilic environment for the absorption of water vapor. This combination of properties is highly efficacious and permanent, functioning independent of any additional non-fogging additives. The current invention is composed of an isocyanate prepolymer and a water-soluble polyhydroxl polymer. An absence or surfactants or crosslinking additives/chain extenders makes the current invention innovative amongst prior art, relying totally upon the inventors' use of certain unique material combinations.

Abstract: 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 ° C. of 5 % or less. A polyol has a glass transition temperature of about 40° C. or more, a hydroxyl number of about 20 mg KOH/g or more and an average molecular weight Mn of about 500 g/mol or more. Also provided is a process for preparing the composition, wherein the isocyanate, the polyol and any other components are preblended in a blender. The polyol and other meltable components of the blend are melted, homogenized and dispersed in an extruder having one or more screws. Further provided are paint compositions, wherein the paint is a high gloss paint. The compositions are environmentally friendly and result in high gloss coatings having beneficial mechanical properties.

Abstract: The present invention provides a cationic resin composition comprising a cationic resin (A) and a blocked polyisocyanate (B) obtained by reacting an active hydrogen-containing component comprising a diol (a) which has two hydroxyl groups having different reactivities from each other and which has a molecular weight of 76 to 150 and a carboxyl group-containing diol (b) having a molecular weight of 106 to 500 with a polyisocyanate compound (c).

Abstract: 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 acid rain resistance. A film-forming polyurethane polyol composition comprises a reaction product of an n-functional isocyanate (wherein n is a number ranging from about 2 to about 5) with at least one diol or triol or mixtures thereof and a compound containing isocyanate-reactive functional groups, preferably a monofunctional alcohol or thiol. The low viscosity polyurethane polyol of the present invention is typically crosslinked/cured using a melamine to produce a cured coating which is highly acid etch resistant as well as having other desirable physical-mechanical properties. The coating compositions have improved flow characteristics compared to compositions containing polyurethane polyols prepared without the monofunctional alcohols or thiols.

Abstract: Reactive compositions which consist of or comprise (A) at least one polyisocyanate whose isocyanate groups have been partly or fully blocked with propargyl alcohol, (B) at least one constituent which contains on average at least two isocyanate-reactive functional groups in the molecule, and (C) at least one catalyst which catalyzes the addition reaction of the isocyanate-reactive functional groups of (B) with the acetylenically unsaturated triple bond of the propargyl groups, and their use as coating materials, adhesives, and sealing compounds.

Abstract: A polyurethane having a thiol substituent pendant from at least one nitrogen and/or at least one carbon atom of the polyurethane.

Abstract: A description is given of polyisocyanates 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 on average from 1.5 to 5 and also of a process for preparing these polyisocyanates in which a polyamine of the formula II in which R, R′, and n are as defined above, is reacted with phosgene. The new polyisocyanates are suitable for producing crosslinked polyurethanes from reaction mixtures with low solvent content and for producing coating compositions or adhesives. Also described are the coating compositions and adhesives, and their use.

Abstract: 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.

Abstract: The present invention relates to novel storage-stable blocked polyisocyanates, to a process for their preparation and to their use in the production of polyurethane materials and coatings.

Abstract: The invention concerns an isocyanate composition at least partially masked, characterized in that it is masked by at least two agents, one of which at least has a non-carbon carboxylic function. The invention is applicable to organic synthesis.

Abstract: 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 and a polyol having a hydroxyl number of between approximately 50 and approximately 250 and a number [lacuna] molar mass of between approximately 500 and approximately 15 000, said coating composition exhibiting a good pot life and a rapid rate of crosslinking at ambient temperature, to produce a crosslinked coating possessing good properties of surface hardness, of flexibility and of impact resistance.

Abstract: A stable and high-solids aqueous dispersion of blocked isocyanates, containing auxiliary solvent, is prepared by (1) preparing a solution of a polyisocyanate mixture of from 20-70% by weight of a blocked, hydrophilically modified polyisocyanate (A) and from 30-80% by weight of a blocked, hydrophobic polyisocyanate (B) in an auxiliary solvent (G) and (2) adding water to this solution, with intensive mixing, in an amount which is such as to give a two-phase system comprising a disperse polyisocyanate phase and a continuous, aqueous phase containing auxiliary solvent. In a preferred embodiment of the invention dispersions are prepared which are virtually free from auxiliary solvent, by first adding a portion of water to the solution (1), substantially removing the auxiliary solvent with intensive mixing and then adding a second portion of water with intensive mixing to the mixture comprising the polyisocyanates (A) and (B) and the first portion of water.

Abstract: The present invention relates to a blocked polyisocyanate containing: A1) 40 to 70 equivalent % of a predominantly linear NCO prepolymer having an NCO content of 5.0 to 10.0 wt. %, A2) 30 to 60 equivalent % of an aliphatic lacquer polyisocyanate, B1) 30 to 60 equivalent % of epsilon-caprolactam and B2) 40 to 70 equivalent % of diisopropylamine or 1,2,4-triazole as blocking agents, wherein the equivalent percents of isocyanate components A1) and A2) add up to 100 %, and the equivalent percents of blocking agents B1) and B2) add up to 100 to 110%, based on the equivalents of component A). The present invention also relates to a process for preparing these blocked polyisocyanates to coating compositions containing these blocked polyisocyanates and to metal substrates coated with these coating compositions.

Abstract: Mixed and hybrid blocked polyisocyanates as cross linking agents in coating compositions, having at least one 1,3-dicarbonyl blocking group and at least one thermally active blocking group such that the molar ratio of 1,3-dicarbonyl blocking groups to thermally active blocking groups is in the range of from 4:1 to 1:9, offer improved intercoat adhesion when overcoated and good stability.

Abstract: The invention relates to aqueous and/or water-dilutable polyisocyanate crosslinkers blocked with diisopropylamine, to their preparation and use in one-component baking lacquers, for example as fillers in automotive lacquering.

Abstract: The present invention relates to an electrodepositable coating composition having a resinous phase dispersed in an aqueous medium. The resinous phase includes (a) an ungelled, active hydrogen-containing, ionic salt group-containing resin; and (b) a curing agent reactive with the active hydrogens of the resin (a). The resinous phase has a covalently bonded halogen content based on total weight of resin solids present in the resinous phase such that when the composition is electrodeposited and cured, the cured film passes flame resistance testing in accordance with IPC-TM-650, and has a dielectric constant of less than or equal to 3.50. The invention also is directed to a method for forming a dielectric coating on an electroconductive substrate using the electrodepositable coating composition, as well as to a substrate coated with the electrodepositable composition.

Abstract: 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 prepolymer, which has NCO groups at the ends and comprises units derived from an oxadiazinetrione compound (A) represented by the following formula (1) and units derived from an active hydrogen compound (B) represented by the following formula (2), is blocked with a unit derived from an end-blocking agent (C) having at least one active hydrogen in one molecule, and that the end-blocked isocyanate prepolymer has a softening point of not lower than 50° C.

Abstract: Adhesion promoting compounds or resins containing a thiazole functionality (including benzothiazole) and a polymerizable functionality (Z) give improved adhesive strength to metal substrates. A representative structure is the following, in which R1 and R2 together can form a cyclic or aromatic structure, or are linear or branched organic moieties.

Abstract: A water based coating composition prepared by dispersing by use of a suspension stabilizer into water a film-forming component of 30 to 90 percent by weight of (a) a blocked isocyanate compound having at least two blocked isocyanate groups in one molecule and a number average molecular weight of 150 to 5000, and 10 to 70 percent by weight of (b) a methylol group or methylol ether group-containing aminoplast crosslinking agent. The film-forming component can be dispersed into water in the form of a mean particle size by a 50 percent cumulative particle size of 0.1 to 10 &mgr;m. The coating film-forming component in the water based coating composition is very stable in water and is particularly suitable for the water-based coating composition. The coating film-forming component scarcely shows solubility and dispersibility into water by itself, but dispersion thereof with the suspension stabilizer shows excellent dispersion stability.

Abstract: A new and useful nonaqueous liquid pigment dispersion is provided which is easy to handle and produces thorough and effective colorations within target media, particularly as compared to standard solid pigments or high-viscosity liquid pigment dispersions. More specifically, the present invention relates to liquid pigment dispersions possessing viscosities of at most 5,000 centipoise at standard temperature and pressure. Such a low viscosity is obtained through the addition of relatively low amounts of aprotic viscosity modifiers possessing dipole moments of at between about 1.0 and 5.0, alternatively measured in terms of a flash point between about −20° C. and 180°, such as, most preferably cyclic carbonates.

Abstract: Low-odor, storage-stable monomer-containing polyisocyanurate is prepared from isophorone diisocyanate by conducting a partial trimerization for 3 minutes to 3 hours in the presence of 0.05-2% by weight of a catalyst, based on the weight of the diisocyanate, the catalyst having the formula [R—NX3]m⊕mY⊖ wherein Y⊖ is a carboxylic acid anion of 4-8 carbons, R is a &bgr;-hydroxyalkyl group of 2-6 carbons, X is an alkylene group of 2-3 carbons and m is a number from 1.0 to 2.0. The three radicals X form a ring with the quaternary nitrogen by way of a common nitrogen atom, which may be partly &bgr;-hydroxyalkylated, said ring optionally having an OH group positioned &agr;, &bgr; or &ggr; to the nitrogen. The reaction proceeds at a temperature of 0-160° C.

Abstract: A blocked isocyanate group-containing resin composition and a thermosetting resin composition using the same that comprise a resin (C) obtainable by modifying a resin (A) having two or more blocked isocyanate groups of a specific molecular structure in one molecule with a specific monohydric alcohol (B), and by replacing the substituent of the blocked isocyanate groups with a group having a larger number of carbon atoms, thereby lowering solubility parameter value. The compositions exhbit good storage stability and good compatibility with base resins for paint.

Abstract: A composition for optical material according to the present invention comprises as essential components, (a) a compound having in one molecule at least one group selected from the group consisting of isocyanate group and isothiocyanate group; (b) a compound having at least one mercapto group in one molecule; and (c) at least one inorganic component selected from the group consisting of sulfur, selenium, and inorganic compounds containing sulfur and/or selenium. A material produced by curing the composition by polymerization has a sufficiently high mechanical strength, and well-balanced optical, properties, i.e., high refractive index and large Abbe's number, and is suitable as an optical material.

Abstract: A light-colored water based intercoat coating composition containing a hydroxyl group-containing resin (A), a curing agent (B) and a color pigment (C), a resulting coating film having a lightness index or a L value of 80 or more, the curing agent (B) being a blocked polyisocyanate curing agent (B1) blocked with a pyrazole blocking agent.

Abstract: 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 acidic cyclic ketones of the general formula (I). The blocked polyisocyanate system of the invention reacts without elimination of the blocking agent and possesses low crosslinking temperatures.

Abstract: Disclosed are aqueous polyurethane compositions which contain at least one aqueous polyurethane dispersion, at least one compound blocked with isocyanate groups, at least one means for improving sliding behaviour, at least one surface-active and flow-control agent as well as optionally conventional bonding agents, dyes and/or pigments. Said aqueous polyurethane dispersions are useful for coating elastomers for obtaining a surface that has a very low coefficient of friction. Elastomer components that are coated according to the invention are useful for sealing window channels, for moveable glass components and/or as profiled joints in vehicle manufacturing, preferably in automobile manufacturing.

Abstract: The present invention relates to a new liquid, storage-stable coating composition, which is suitable for the production of coatings which have an outstanding resistance to external weathering, and binders thereof which are composed of a hardener component comprising an aminoplast resin and/or a blocked polyisocyanate and a specific polyol component of selected units, and to its use for the production of weathering-resistant coatings on any desired heat-resistant substrates.

Abstract: The invention relates to a coating composition comprising at least one OH-functional binder component and at least one component compound, functioning as a crosslinking agent, which has NCO groups blocked with a pyrazole compound.

Abstract: Disclosed are a curable resin composition, which is liquid and therefore has good workability before curing and which can be softened or liquefied at a temperature lower than the thermal decomposition temperature in a short time after curing and a curable compound used in the composition as well as a method of easily disassembling a cured material. The curable compound has at least one thermally dissociable group (a) that does not participate in crosslinking reaction and at least two groups (b) participating in crosslinking reaction selected from the group consisting of an isocyanate group, a blocked isocyanate group, an alkoxysilyl group, an epoxy group, an acid anhydride group, an amino group, a latent amino group, a mercapto group and a carboxyl group.

Abstract: The invention relates to aqueous and/or water-dilutable blocked polyisocyanates, their preparation and use in optionally self-crosslinking one-component systems.