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7214758 |
Rubber adhesive composition for textile materials
This invention relates to an adhesive composition comprising: an elastomeric latex; a phenol, an aldehyde and an alkylated melamine-formaldehyde resin suitable for use in the adhesion of textile...
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6723801 |
Polyphenol resin, process for its production, epoxy resin composition and its use
An object of the present invention is to provide an epoxy resin composition which has high flexibility, can be molded to a thin membrane, and can become a noninflammable cured product. The present...
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6608161 |
Process for producing phenol-dicarbonyl condensates with increased fluorescence, epoxy resins, epoxy resin systems and laminates made with the same
The present invention provides a process for producing phenol-dicarbonyl condensates high in fluorescence by reacting a phenolic compound with a 1,2-dicarbonyl compound in the presence of a...
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6410776 |
Method for producing resols
The invention relates to a process for the preparation of resols by reacting phenolic compounds with aldehydes with catalysis by metal salts whose cation can easily be precipitated as...
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6165675 |
Isolation of novolak resin by low temperature sub surface forced steam distillation
A water insoluble, aqueous alkali soluble novolak resin, process for producing such a novolak resin, a photoresist containing such a novolak resin, and a method for producing a semiconductor...
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6045966 |
Fractionated novolak resin and photoresist composition therefrom
The present invention provides a method for producing a film forming, fractionated novolak resin having consistent molecular weight and superior performance in photoresist composition, by isolating...
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6001949 |
Novolak type phenolic resins and methods of manufacturing thereof
One of the objects of the present invention is to offer novolak type phenolic resins which use phenols and aldehydes as raw materials and give narrow molecular weight distributions. The novolak...
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5986035 |
High-molecular weight high-ortho novolak type phenolic resin
Provided is a high-molecular weight high-ortho novolak type phenolic resin excellent in handleability, heat resistance characteristics, curability and electric characteristics suitable for various...
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5976761 |
Fractionation of phenol formaldehyde condensate and photoresist compositions produced therefrom
A process for producing a water insoluble, aqueous alkali soluble, film forming novolak resin having low metal ions, made by the fractionation of a phenol formaldehyde condensation product, a...
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5952425 |
Preferred structure of phenolic resin curative for thermoplastic vulcanizate
Phenolic resin curatives having a majority of dibenzyl ether linkages were unexpectedly found to be very effective in curing unsaturated rubbers in a blend of a crystalline polyolefin and said...
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5932389 |
Controlled alternating and block copolymer resins
This invention relates to alternating and block copolymer resins of uniform and controlled chain length and methods for preparing the same. The alternating copolymer resins are formed from the...
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5916966 |
Stabilized phenolic resin melamine dispersions and methods of making same
Disclosed is a stabilized phenolic resin melamine dispersion comprising a liquid alkaline resole resin composition and solid melamine crystal dispersed throughout the resin composition. The liquid...
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5708121 |
Storage stable melamine-modified phenolic resole resins using an alkaline condensation and polyhydroxyl compound stabilization
This invention relates to an emulsifiable melamine-modified phenolic resole resin composition useful as a binder for glass fibers. The invention is more particularly directed to the process of...
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5571886 |
Aromatic novolak resins
An essentially aromatic alkali soluble novolak resin comprising the product resulting from the acid condensation of an aromatic aldehyde and a phenol where the resin has a molecular weight in...
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5543487 |
Hydroxymethylated resorcinol coupling agent and method for bonding wood
A hydroxymethylated resorcinol coupling agent is provided, including a hydroxymethylated resorcinol as an active ingredient, which enables commercial thermosetting adhesives such as bisphenol-A...
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5505998 |
Acidic glass fiber binding composition, method of use and curable glass fiber compositions
Described is an acidic glass fiber binding composition comprising an aqueous soluble phenol formaldehyde resin having low free formaldehyde, an effective amount of a formaldehyde scavenger, and an...
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5412058 |
Novolaks of the phenol-dense aldehyde type
New formaldehyde-phenol resins of the novolak type comprising aliphatic aldehyde radicals with 6 or more carbon atoms and with the molar ratio between these heavy aldehyde radicals and the phenolic...
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5378791 |
Phenolic resins
This invention relates to a process for producing low molecular weight phenol-aldehyde resin which has predominantly 4 phenolic units in a chain and in which the phenolic ring has a substituent R...
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5372879 |
Biaxially oriented polyester film
The present invention provides a biaxially oriented polyester film made of a polyester containing 0.01 to 5% by weight of crosslinked polymer particles characterized by: (1) having a particle...
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5367040 |
Precure resistant thermoset resin for molded wood composites
A process for the production of modified phenol-formaldehyde resins includes the use of a difunctional phenolic compound as the phenolic component of the resins. The inventive resins resist...
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5350827 |
Selected structurally defined novolak binder resins and their use in radiation-sensitive compositions
A novolak resin composition comprising at least one unit of the reaction product of a para-, para-bonded bisphenol having formula (A): ##STR1## wherein R 1 =hydrogen, lower alkyl group having 1-4...
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5344909 |
Latent catalyzed phenolic resole resin composition
A latent catalyzed phenolic resin composition is provided containing a thermosetting phenolic resole resin and a latent catalyst consisting essentially of a primary or secondary amine salt of a...
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5319063 |
Phenolic resin and method for preparing same
A phenolic resin can be obtained by a condensation reaction between a specific trifunctional aromatic compound and a phenolic compound. This resin can be reacted with a curing agent such as a...
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5296584 |
Resole 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...
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5216111 |
Aromatic novolak resins and blends
An essentially aromatic alkali soluble novolak resin comprising the product resulting from the acid condensation of an aromatic aldehyde and a phenol where the resin has a molecular weight in...
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5151496 |
Substituted phenol-formaldehyde novolac resins containing reduced quantities of 2-functional components and epoxy novolac resins prepared therefrom
The 2-functional component of substituted phenol-aldehyde novolac resins is reduced. Epoxy novolac resins prepared from the novolac resin containing reduced quantities of 2-functional product...
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5089589 |
Process for the preparation of novolaks and their use
The preparation of novolaks from phenols or mixtures of different phenols, and oxo compounds or mixtures of oxo compounds by condensation of the reactants in a medium having a low water content in...
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5079314 |
Curable compositions containing epoxidized phenolformaldehyde resins containing reduced quantities of 2-functional components
Phenol-aldehyde novolac resins having reduced quantities of 2-functional material are prepared by removing all or part of the 2-functional material from this product resulting from reacting phenol...
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5074946 |
Wood bending methods employing fast curing phenolic resins
It has now been found that when there is a partial or complete replacement of the sodium hydroxide that is used to make a sodium phenolate resole resin by a molar equivalent of potassium hydroxide,...
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5073622 |
Process for the preparation of novolak resins with low metal ion content
The invention relates to a process for the preparation of novolak resins having a low amount of metal ions. In the process, a conventional resin in an organic solution is brought into contact with...
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5053479 |
Thermally stable phenolic resin compositions and their use in light-sensitive compositions
A phenolic novolak resin comprising the product of a condensation reaction of an aldehyde comprising a haloacetaldehyde source or a mixture of a haloacetaldehyde source and a formaldehyde source...
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5023311 |
High-molecular-weight soluble novolak resin and process for preparation thereof
Disclosed is a novel, organic solvent-soluble novolak resin having a high molecular weight and an inherent viscosity of at least 0.1. This high-molecular-weight novolak resin can be prepared with a...
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4839445 |
Spherical particles of thermosetting phenolic resin and process for producing the same
The present invention relates to a process for producing spherical thermosetting phenolic resin particles having a size of no larger than about 1,000 microns, and the spherical thermosetting...
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4758478 |
Fast curing phenolic resins and bonding methods employing same
It has now been found that when there is a partial or complete replacement of the sodium hydroxide that is used to make a sodium phenolate resole resin by a molar equivalent of potassium hydroxide,...
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4656239 |
Process for the preparation of phenol formaldehyde resole resins
The process described herein involves the gradual addition of aqueous formaldehyde, containing 35-60 percent by weight of formaldehyde, to a phenol maintained at a temperature of 60°-100° C.,...
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4649188 |
Method for reducing 2-functional components in novolac resins and epoxy novolac resins prepared therefrom
The 2-functional content of phenol-aldehyde novolac resins is reduced by water extraction. Epoxy novolac resins prepared from the novolac resin containing less 2-functional product exhibit...
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4640971 |
Microspherical particles of resole resins and process for producing the same
A resole resin in the form of microspherical particles whose surfaces are partly or entirely covered with a coating of a substantially water-insoluble inorganic salt and which are not larger than...
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4639496 |
Method for the manufacture of a polymer reacted with FeCl.sub.3
Method for the manufacture of a polymer with triaromatic methane units as basic building blocks, the electric conductivity of which is obtained through the formation of charge transfer complexes....
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4585837 |
Resoles containing zirconium metal atoms
There are disclosed thermosetting resoles containing chemically bonded boron, tungsten and/or zirconium atoms. The metal containing resoles of this invention are useful, for example, as...
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4578448 |
High-ortho phenol-formaldehyde resoles containing hemiformal groups
Disclosed are high-ortho phenol-formaldehyde resoles having stable hemiformal groups. These resoles are of low viscosity, are essentially free of unbound water and volatile organic compounds. They...
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4564466 |
Method for the manufacture of a polymer
Method for the manufacture of a polymer with triaromatic methane units as basic building blocks, the electric conductivity of which is obtained through the formation of charge transfer complexes....
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4542204 |
Method for particulate production of condensate of aldehyde compound and phenol compound
A method for a condensate of an aldehyde compound and a phenol compound, said method comprising dispersing a viscous condensate obtained by the reaction of an aldehyde compound with a phenol...
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4483788 |
Electric field responsive fluids
An electroviscous (EV) fluid composition whose fluid properties are altered in the presence of an electric field comprises water-containing particles of a phenol-formaldehyde polymer dispersed in a...
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4468507 |
Method of limiting rate of heat evolution during acid-catalyzed phenol/polymethylolphenol condensations
Large-scale preparation of branched novolacs by the acid catalyzed, exothermic condensation of methylol-reactive phenols with polymethylol diphenols is made practical by first carrying out the...
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4454298 |
Granular or powdery phenol-aldehyde resin and process for production thereof
A granular or powdery resin which is a condensation product of a phenol and an aldehyde and optionally a nitrogen-containing compound having at least two active hydrogens, said granular or powdery...
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4433119 |
Liquid 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,...
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4427800 |
Phenolic resin for refractory uses
Refractory shaped articles are prepared by heating refractory mixes comprised of refractory particles and a liquid phenolic resole resin having a methylol group index of about 0.8 or less and a...
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4424300 |
Powdered phenol-formaldehyde resin
Phenol-formaldehyde resin powder capable of both heat softening and fast-cure is produced by spray drying a blend of resole and novolac prepolymers. The powder, when mixed, heated and pressed with...
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4414379 |
Granular or powdery nitrogen-containing phenol-aldehyde copolymer resin and process for production thereof
A granular or powdery nitrogen-containing phenol-aldehyde copolymer resin which is a condensation product of a phenol, a nitrogen-containing compound having at least two active hydrogen atoms and...
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4414378 |
Granular or powdery phenol-formaldehyde resin and process for production thereof
A granular or powdery resin which is a condensation product of a phenol and formaldehyde, said granular or powdery resin being characterized by (A) containing spherical primary particles and...
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