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Patent Searching and Data


Matches 301 - 350 out of 2,893

Document Document Title
WO/2004/056900A1
The invention relates to a direct synthesis method for producing etherified melamine resin condensates having average molar masses of 500 to 50,000. Said method is characterized by the fact that a) an etherified melamine resin precondens...  
WO/2004/056899A1
The invention relates to synthetic material dispersions consisting of (a) an aqueous phase of solutions of hydrophilic melamine resin precondensates and a latent hardening catalyst in water or in mixtures of water and alcohols C1-C6, (b)...  
WO2004003044A8
Alternating co-polymers involving the polycondensation of dihydrazides or diamines with dialdehydes reversibly exchange either one or both of their fundamental repeating monomer units in the presence of different monomer units. Furthermo...  
WO2004003044A3
Alternating co-polymers involving the polycondensation of dihydrazides or diamines with dialdehydes reversibly exchange either one or both of their fundamental repeating monomer units in the presence of different monomer units. Furthermo...  
WO2003101973A3
The invention relates to a compound of formula (I), refer to attached formula sheet, where: X is equal to NR5; R4 is equal to a C1-C12 alkyl group, aryl group, aralkyl group or cycloalkyl group. R1, R2, R3, R5 are equal to an H, alkyl, c...  
WO/2004/020493A1
A crosslinking agent that is an ungelled reaction product of (a) an aminoplast resin and (b) a carboxylic acid-containing compound wherein the crosslinking agent is essentially free of reactive carboxylic acid groups and has a glass tran...  
WO/2004/018581A2
A process for making an article from an amino resin comprising mixing an amino resin with a halogenated catalyst in a sufficient amount to form a reaction mass, shaping the reaction mass and heating said reaction mass to produce a cured ...  
WO2003082004A3
A seed for enhancing the extended delivery of nitrogen needed for plant development and growth, the seed having a slow release nitrogen coating (Fig. 1) of a particulate UF polymer adhered to the seed with an adhesive binder.  
WO/2004/003044A2
Alternating co-polymers involving the polycondensation of dihydrazides or diamines with dialdehydes reversibly exchange either one or both of their fundamental repeating monomer units in the presence of different monomer units. Furthermo...  
WO2003082005A3
A slow release, particulate urea-formaldehyde polymer useful as a fertilizer for enhancing the extended delivery of nitrogen needed for plant development and growth and a granular fertilizer made with the particulate urea formaldehyde po...  
WO/2003/106524A1
Compositions for producing aminoplast products by means of melt processing consist of: A) 95 to 99.9 % by mass of solvent-free meltable polycondensates of melamine resins having molar masses ranging from 300 to 300000; A) 0.1 to 5 % by m...  
WO2003082003A3
A coated aggregate material for enhancing the extended delivery of nitrogen needed for plant development and growth, the coated aggregate metarial having a slow release (extended-release) nitrogen coating of a particulate UF polymer adhe...  
WO/2003/101973A2
The invention relates to a compound of formula (I), refer to attached formula sheet, where: X is equal to NR5; R4 is equal to a C1-C12 alkyl group, aryl group, aralkyl group or cycloalkyl group. R1, R2, R3, R5 are equal to an H, alkyl, c...  
WO/2003/095516A1
Treatment of off-gas deriving from the pyrolysis reaction of urea to produce melamine, carried out in liquid phase at a high pressure, wherein the melamine content present in the off-gas is separated by washing the off-gas with a cooling...  
WO/2003/093339A1
A melamine-urea-formaldehyde resin modified with a cyclic urea prepolymer and sodium metabisulfite. Products prepared with the binder include wood composites such as particleboard and medium density fiberboard.  
WO2003011935A3
The present invention provides a crosslinking agent which may have reactive benzoxazine groups prepared from (a) at least one aromatic compound, (b) at least one aminotriazine compound, and (c) at least one other compound having active h...  
WO/2003/082004A2
A seed for enhancing the extended delivery of nitrogen needed for plant development and growth, the seed having a slow release nitrogen coating (Fig. 1) of a particulate UF polymer adhered to the seed with an adhesive binder.  
WO/2003/082003A2
A coated aggregate material for enhancing the extended delivery of nitrogen needed for plant development and growth, the coated aggregate metarial having a slow release (extended-release) nitrogen coating of a particulate UF polymer adhe...  
WO/2003/082005A2
A slow release, particulate urea-formaldehyde polymer useful as a fertilizer for enhancing the extended delivery of nitrogen needed for plant development and growth and a granular fertilizer made with the particulate urea formaldehyde po...  
WO/2003/082775A1
A method for treating a seedling by dipping the roots of the seedling into a composition containing a slow release, particulate urea-formaldehyde polymer, which is useful as a fertilizer for enhancing the extended delivery of nitrogen ne...  
WO2002028934A8
The invention relates to an aqueous resin composition, comprising, in addition to water, a resin content in the range of from 65 to 80 % by weight, based on the aqueous resin composition. The resin is obtainable from melamine and formald...  
WO/2003/074580A1
The invention relates to a method for the production of spherical mono or oligo dispersed particles made of melamine resin, having a diameter of 0.1-50 µm, by condensing melamine and formaldehyde in an aqueous medium. In order to produc...  
WO2002051898A8
Method for controlling the production of aqueous formaldehyde resin compositions applied in the manufacture of wood-based panels, in which formaldehyde takes part in a reaction with one or a combination of co resin forming material (of t...  
WO/2003/059978A1
The invention relates to a two-constituent composition, wherein the first constituent (A) contains at least one polyurethane prepolymer which has isocyanate end groups and is produced from at least one aromatic polyisocyanate and at leas...  
WO/2003/055928A1
Disclosed are water-soluble aminoplast-ether copolymers of the following structural type:, in which Z represents an aminoplast unit on the basis of unsubstituted glycoluril or glycoluril that has been substituted with a reactive OR group...  
WO2002026872A8
The invention relates to hydrophilic, open-cell, elastic foams consisting of melamine/formaldehyde resins. Said foams can be obtained by (a) heating and cross-linking an aqueous solution or dispersion, containing, respectively, at least ...  
WO/2003/022899A1
A binder for abrasive products, coated abrasive articles and a method of making the same comprising a urea formaldehyde resin precursor cured in the presence of a sole catalyst which consists essentially of at least one salt of an acid w...  
WO/2003/011934A1
A crosslinking agent is provided which is an ungelled reaction product of (a) an aminoplast resin and (b) a compound having active hydrogen groups reactive with the aminoplast resin (a) such that the crosslinking agent is essentially fre...  
WO/2003/011970A1
A crosslinking agent which is an ungelled reaction product of (a) at least one aminoplast resin, (b) at least one polyfunctional polymer having functional groups reactive with aminoplast resin (a) and having a glass transition temperatur...  
WO/2003/011933A1
A crosslinking agent is provided, prepared by reacting (A) an aminoplast resin; (B) a reactive urethane group-containing adduct and (C) at least one other compound having active hydrogen groups reactive with aminoplast resin (A). Compoun...  
WO/2003/011932A1
A crosslinking agent is provided, prepared by reacting (A) an aminoplast resin; (B) a reactive urethane group-containing adduct of a polyfunctional polymer and monoisocyanate, and (C) at least one other compound having active hydrogen gr...  
WO/2003/011936A1
A crosslinking agent having reactive benzoxazine groups is provided. The crosslinking agent is an ungelled reaction product of aminoplast resin, a polyhydric aromatic compound, and at least one compound having active hydrogen groups reac...  
WO/2003/011935A2
The present invention provides a crosslinking agent which may have reactive benzoxazine groups prepared from (a) at least one aromatic compound, (b) at least one aminotriazine compound, and (c) at least one other compound having active h...  
WO2000078835A3
The preparation of a high parity cylic-urea-formadehyde prepolymer (cyclic urea prepolymer) is performed at a temperature of at least 85 DEG C and a pH between 7 and 9, whereby per mole of urea at least 4 mole formaldehyde and 0.5 - 1.2 ...  
WO/2002/077050A1
The invention relates to discrete microcavity particles having a flexible polymer wall structure, a method for the production of said particles and the use of the same as compounding materials for thermoplastic polymers, additives for pa...  
WO/2002/077051A1
The invention relates to a process for preparing a liquid melamine urea formaldehyde resin that has long term stability. The invention also relates to a liquid MUF resin with a high formaldehyde and melamine content. The invention furthe...  
WO/2002/070576A1
A process for producing spherical compound hardened melamine resin particles with excellent water resistance having colloidal silica localized around the surface, whereby the particle diameter can be controlled over a broad range of from...  
WO2002051897A3
The present invention provides a crosslinker for organic coatings having an amino resin core with substituents including more than one olefin functional group, a silicon-containing group, and at least one alkoxyalkyl or alkylol group. Co...  
WO/2002/066455A1
The invention relates to a process for the separation of an aqueous mixture of trioxane and formaldehyde and corresponding applications. The aqueous mixture of trioxane and formaldehyde has a first trioxane:formaldehyde ratio. The proces...  
WO2002048261A3
The invention relates to a method for curing aminoplast resins according to which inorganic particles, which have a laminated structure and which comprise interlamellarly exchangeable cations of the flowing type: alkali cations, alkaline...  
WO2002024799A3
The present invention provides a crosslinking agent having reactive benzoxazine groups that is the ungelled reaction product of (a) at least one mono-hydroxy aromatic compound and (b) at least one aminotriazine compound having one or les...  
WO2002024607A3
Die Erfindung betrifft ein Verfahren zur Herstellung von Methylenharnstoff-Polymeren unter Verwendung von Harnstoff, einem Formaldehydprodukt sowie einer Säure. Der Harnstoff wird zusammen mit dem Formaldehydprodukt in einen Mehrwellen-...  
WO/2002/051898A1
Method for controlling the production of aqueous formaldehyde resin compositions applied in the manufacture of wood-based panels, in which formaldehyde takes part in a reaction with one or a combination of co resin forming material (of t...  
WO/2002/051897A2
The present invention provides a crosslinker for organic coatings having an amino resin core with substituents including more than one olefin functional group, a silicon-containing group, and at least one alkoxyalkyl or alkylol group. Co...  
WO/2002/048261A2
The invention relates to a method for curing aminoplast resins according to which inorganic particles, which have a laminated structure and which comprise interlamellarly exchangeable cations of the flowing type: alkali cations, alkaline...  
WO2002024798A3
A crosslinking agent which is the ungelled reaction product of (a) an aldehyde condensate of glycoluril and (b) a polyol is provided. The crosslinking agent is essentially free of hydroxyl functionality and has a glass transition tempera...  
WO/2002/042366A1
The invention relates to a foam for purifying and filtrating air, particularly filtrating toxic compounds, such as for instance tar and polycyclic aromatic hydrocarbons (PAHs) from tobacco smoke, and to a method to prepare this foam. The...  
WO/2002/040564A1
The invention relates to etherified 2,4-diamino-1,3,5-triazine-aldehyde resins, which in contrast to conventional resins of this type, have softening points higher than 100 °C and which can be processed, without hardening, in the melt a...  
WO2001094436A3
The invention relates to a method for producing elastic foamed materials which are based on a melamine/formaldehyde condensation product. According to the inventive method, a pre-condensate, having a mol ratio of melamine to formaldehyde...  
WO2002016458A3
A controlled release urea-formaldehyde liquid resin a nitrogen level or at least 28wt% and its method of manufacture. The controlled release urea-formaldehyde resin is useful as a fertilizer.  

Matches 301 - 350 out of 2,893