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Class 525/497 - Heterocyclic nitrogen reactant or polymer therefrom, e.g., melamine, etc.


Subclass of Class 525 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter which contains a hetero-N-cyclic reactant
No. of patents: 52
Last issue date: 03/18/2008


1    
NumberTitleIssue Date
7345101Aqueous composition of reaction product of epoxy and phosphorus materials with curing agent
A corrosion resistant, alkali resistant coating composition is disclosed. The composition comprises a binder comprising a reaction product of an epoxy-containing material and a phosphorus-containing material together with a curing agent. Aminoplasts, especially mela...
03/18/2008
7323534Phenol-formaldehyde resole resins, method of manufacture, methods of use, and articles formed therefrom
A composition is disclosed, which comprises a hydroxyaromatic-aldehyde resole resin comprising an aldehyde and a hydroxyaromatic compound, modified with a urea-aldehyde condensate. The composition has improved premix stability, improved cure efficiency, comparable t...
01/29/2008
7087664Resin film and multilayer printed wiring board using thereof
A resin film comprising (A) an epoxy resin having two or more glycidyl groups in a molecule, (B) an epoxy resin curing agent, (C) a thermoplastic resin, and (D) a filler, wherein the filler content in at least either one of the surface regions on the cross-section o...
08/08/2006
6992151Phosphorus-containing flame-retardant hardener, and epoxy resins cured by the same
The present invention discloses an active-hydrogen-containing curing agent having a phosphorus group, and a flame retardant cured epoxy resin which can be prepared via an addition reaction between the active hydrogen and the epoxide group of an epoxy resin. The cure...
01/31/2006
6936651Compatibility improvement in crystalline thermoplastics with mineral fillers
A composition for forming a crystalline thermoplastic (such as polyacetal) composition for improving compatibility using a ternary blend that includes a mineral filler and elastomer material and an article made therefrom. The mineral filler may be coated or uncoated...
08/30/2005
6864344Sulfonated condensation products which are stabile in storage, method for the production thereof, and their use
Sulfonated condensation products that are stable in storage and have increased thermal stability are based on aminoplastic formers having at least two amino groups or naphthalene and formaldehyde and, optionally include organic nitrogen bases which additionally cont...
03/08/2005
6846567Surface-protected transparent plastic composite
A surface-protected plastic composite material comprising a transparent plastic, a coating layer (I) as a first layer stacked on the transparent plastic and a thermally cured coating layer (II) as a second layer stacked on the first layer, the coating layer (I) bein...
01/25/2005
6800717Acid catalyzed copolymerization of water and epoxy resin and uses thereof
Non-gelled polymeric polyols are prepared by the acid catalyzed copolymerization of epoxy resins and water. When the starting resin is an epoxy resin derived from bisphenol-A, the resulting product has much lower levels of bisphenol-A and diglycidyl ether of bisphen...
10/05/2004
6613848Phosphorus-containing phenolic, thiophenolic or aminophenyl flame-retardant hardener, and epoxy resins cured thereby
A hardener for an epoxy resin comprises a phenolic, thiophenolic, aminophenyl, tris-phenolic, tris-thiophenolic, tris-aminophenyl, tetrakis-phenolic, tetrakis-thiophenolic, or tetrakis-aminophenyl compounds; or phenol-formaldehyde or phenol-formaldeh...
09/02/2003
6566459Melamine-urea-formaldehyde resins modified with cyclic urea prepolymer and sodium metabisulfite
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....
05/20/2003
6528595Adhesive of thiirane and oxirane-containing compound and oxirane-containing compound
A composition useful as a sealant, coating, a potting agent for a printed circuit board, a prepreg or an adhesive comprises a compound (A) wherein all or a part of the oxirane rings in an epoxy compound is replaced with thiirane rings represented by the f...
03/04/2003
6500447pH-sensitive microcapsules
The present invention provides pH-sensitive micro-capsules, compositions containing them, methods for their preparation and methods for their use....
12/31/2002
6399719Cyclic urea-formaldehyde prepolymer-modified melamine-containing resins, and use in binders for cellulosic-based composites
A melamine-containing resin modified with a cyclic urea prepolymer comprising urea, formaldehyde and ammonia or a primary amine. The prepolymer-modified melamine-containing resin provides useful binders alone, or when combined or coreacted with other resi...
06/04/2002
6391967Flame retarding thermoplastic resin composition
This invention discloses a flame retarding thermoplastic resin composition, which is comprised of (i) a thermoplastic resin and (ii) a phenolic resin compound as a flame retardant, wherein the phenolic resin compound contains a nitrogen-containing heteroc...
05/21/2002
5847058Alkylresorcinol modified phenol-aldehyde resol resin and binder system, and method of making same
A process for the production of a storage-stable, modified phenol-aldehyde resol resin includes the use of an alkylresorcinol modifier and preferably a readily-available mixture of alkylresorcinols. A binder system includes the modified phenol-aldehyde re...
12/08/1998
5760104Mixtures of phenolic novolaks for use with refractory aggregate and methods for making same
A binder solution of a phenolic novolak resin in solvent, preferably furfuryl alcohol containing at least one chemical agent such as amines containing one to five, preferably two to four, nitrogen atoms, glycerine or mixtures thereof. Preferably, the bind...
06/02/1998
5756599Binder resin, binder system, cellulosic composite articles, and method of making the same
A process for producing a phenol-aldehyde (e.g., cresol-aldehyde) resin that is modified with a dihydroxybenzene compound. The resin may form a binder system when combined with a curing agent which includes an additional source of an aldehyde. The resin a...
05/26/1998
5646219Method of preparing binder system and product thereof
A process for the production of a modified phenol-aldehyde resin which may form a binder system when combined with a curing agent which includes an additional source of an aldehyde, e.g., a phenol-formaldehyde resin. The inventive phenol-aldehyde resin ma...
07/08/1997
5342916Condensation polymers of sulfonated phenols, urea, other organic nitrogen-bases, and formaldehyde, and their use as tanning agents and as spraying aids for redispersible polymer powders
Condensation polymers of sulfonated phenols, urea, other organic nitrogen-bases and formaldehyde, obtainable by (A) sulfonation of phenols with from 1.0 to 1.5 moles of sulfuric acid per mole of phenol and (B) condensation of these sulfonation products with (a...
08/30/1994
5304456Negative photoresist composition
A negative photoresist composition containing an alkali-soluble resin which is obtainable through a condensation reaction of an aldehyde with a phenol compound containing a compound of the general formula: ##STR1## wherein R1 to R9
04/19/1994
5296584Resole melamine dispersions as adhesives
The invention relates to a composition consisting of a melamine solid suspended or dispersed in a resole resin. The method of the invention favors the intermolecular condensation polymerization reaction between phenol and melamine, rather than homopolymer...
03/22/1994
5260405Lignin modified binding agents
A binding agent for molding compositions and molded bodies produced by reacting a low molecular weight lignin from the Organosolv process with phenol in a weight ratio of 1:20 to 3:1 at 100° to 180° C., adjusting the pH to an acidic value and condensing...
11/09/1993
5254639Binding agents
A binding agent for molded bodies and molding compositions produced by prereacting a mixture of 5 to 60% by weight of lignin or a lignin fraction produced by the Organosolv process and 40 to 95% by weight of a phenol novolac resin and subjecting the latte...
10/19/1993
5171797Water borne hermetic coating
An hydrolytically stable, heat-curable composition useful as an hermetic varnish for electrical conductors comprising an aqueous solution with or without organic co-solvents of: 1) an adduct of an epoxide of a phenol-formaldehyde condensate and a dialkano...
12/15/1992
4978711Aqueous aminoresin solutions for low-formaldehyde surface bonding
Aqueous aminoresin solutions for low-formaldehyde surface bonding, based on condensates of melamine, urea, phenol and formaldehyde having a molar ratio of from 1.4 to 1.8 moles of formaldehyde, from 0.04 mole to 0.1 mole of melamine and from 0.015 to 0.04...
12/18/1990
4954581Amino resin and a method for its production
The invention relates to a resin for the production of cellulose based products, such as particle boards. The resin is a condensation product of formaldehyde, urea and phenol and optionally melamine with a molar ratio of 1.4-0.8 moles of urea, 0.006-0.04 ...
09/04/1990
4857609Amino resin and a method for its production
The invention relates to a resin for the production of cellulose based products, such as particle boards. The resin is a condensation product of formaldehyde, urea and phenol and optionally melamine with a molar ratio of 1.4-0.8 moles of urea, 0.006-0.04 ...
08/15/1989
4845162Curable phenolic and polyamide blends
The present invention relates to a composition comprising a phenolic resin, as for example phenol formaldehyde, an active hydrogen containing polymer as for example a polyamide, and a curing agent, such as a polyepoxide....
07/04/1989
4831089Method for the production of amino resin
The invention relates to a method for the production of a resin which is used for manufacturing of an adhesive for cellulose based products. According to the method 30-70% by weight of a urea phenol resin with a molar ratio of 1.4-0.6 moles or urea, 0.006...
05/16/1989
4699949Hardening of acid-hardenable compositions containing a blocked hardening catalyst, using heat
Compounds of formula I or II ##STR1## in which n is 1 or 2, R1 is phenyl, substituted phenyl, alkyl, substituted alkyl, hydrogen, --OH or amino, R2 is hydrogen, R3 is hydrogen, alkyl, substituted alkyl, phenyl or subs...
10/13/1987
4593078Polyglycidyl ethers, their preparation and their use in preparing thermosetting coating compositions
The present invention is directed to polyglycidyl ethers having, on average, n epoxy groups per molecule, where 12...
06/03/1986
4433119Liquid thermosetting compositions containing hemiformals of phenol
There are described liquid compositions of a hemiformal of phenol and/or a hemiformal of a methylolated phenol with a miscible polymers such as phenol-formaldehyde resoles, phenol-formaldehyde, novolacs, aromatic polyesters, unsaturated polyesters, poly(a...
02/21/1984
4350800Process for the preparation of synthetic resins based on resorcinol compounds
A process for the preparation of synthetic resins based on resorcinol compounds which comprises reacting a resorcinol pitch which is obtained in the manufacture of resorcinol from benzenedisulfonic acid in at least one step with an oxo-compound selected f...
09/21/1982
4345054High-molecular-weight novolak types substituted phenolic resins and process for preparation thereof
A high-molecular-weight novolak type substituted phenolic resin having a number average molecular weight of at least 1500 is prepared by reacting (A) (i) a phenol comprised mainly of a bifunctional phenol or (ii) a low-molecular-weight novolak type substi...
08/17/1982
4342852Setting type resin composition containing a substantially linear, high-molecular-weight novolak substituted phenolic resin
Disclosed is a setting type resin composition comprising (A) a setting type resin and (B) 10 to 200 parts by weight, per 100 parts by weight of said resin (A), of a substantially linear, high-molecular-weight novolak type substituted phenolic resin which ...
08/03/1982
4285848Wood adhesive from phenol, formaldehyde, melamine and urea
Preparation of this adhesive is characterized by initial condensation of phenol and formaldehyde, which is followed by sequential condensation of melamine and then urea to produce a wood adhesive which passes the standard 6-cycle test....
08/25/1981
4276209Co-condensates based on phenol-butyraldehyde resins, their preparation and their use
Co-condensates are prepared by condensing from 0.8 to 2.0 moles of butyraldehyde with 1 mole of a phenol at from 80° to 220° C. with the addition, before, during or after the condensation, of from 5 to 50% by weight, based on the mixture of phenol and b...
06/30/1981
4196109Phenolic resin-triazine modifier for alkyd resins
The invention is directed to alkyd resin compositions which contain, in addition to the alkyd (1) a phenolic resin containing carboxyl substituents and (2) a triazine derivative or a resinous condensation product thereof. Upon heat treatment, to effect cu...
04/01/1980
4195154Novel 2-amido- or 2-amino-alkyl ethers of polyhydric polyphenols and process for preparing same
The title compounds are of the formula: ##STR1## wherein R is a chemical bond, oxygen, sulfur, alkylene or alkylidene; W is hydrogen or a (--CR1 R2 --CR3 R4 --NHR5) group with the proviso that at...
03/25/1980
4170611Process for preparing bonding agents for light-colored weatherproof wood materials
A process for preparing bonding agents for light-colored weatherproof wood materials, based on alkali-condensed phenol-formaldehyde mixed condensates....
10/09/1979
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