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7579075 |
Phenolic novolak resin for shell mold, process for producing the same, and resin coated sand
It is an object of the present invention to provide a phenolic novolak resin for a shell mold which is capable of simultaneously solving a problem of gas defect caused by a tar generated at the...
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7407994 |
Cold-box binders containing an epoxy resin, acrylate, and isooctyl tallate
This invention relates to foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy resin; (b) an acrylate; (c) an alkyl ester...
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7270879 |
Particulate material containing thermoplastics and methods for making and using the same
Disclosed herein is a particle comprising a particulate substrate; and a thermoplastic elastomer present on or in the substrate as an amount sufficient to improve the dust suppression of the...
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7129283 |
Binders containing an epoxy resin, an ester of a fatty acid, and a fluorinated acid
This invention relates to foundry binder systems, which cure in the presence of sulfur dioxide and an oxidizing agent, comprising (a) an epoxy resin; (b) an ester of a fatty acid; (c) a fluorinated...
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7122583 |
Cold-box binders containing an epoxy resin, acrylate, and certain akyl esters
This invention relates to foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy resin; (b) an acrylate; (c) an alkyl ester...
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7081487 |
Cold-box binders containing an epoxy resin and ester of a fatty acid
This invention relates to foundry binder systems, which cure in the presence of sulfur dioxide and an oxidizing agent, comprising (a) an epoxy resin; (b) an ester of a fatty acid; (c) an effective...
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7019047 |
Acrylate-free binders containing an epoxy resin and an alkyl silicate
This invention relates to foundry binder systems, which cure in the presence of sulfur dioxide and an oxidizing agent, comprising (a) an epoxy resin; (b) an alkyl silicate; (c) an ester of a fatty...
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6818707 |
Spray dried phenolic resole molding powder with crystalline phenolic compounds
A binder composition comprising a blend of a crystalline phenolic compound having two or more hydroxyphenyl groups and a thermosetting spray dried phenolic resole resin is disclosed. The binder...
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6772820 |
Polyurethane based binder system for the manufacture of foundry cores and molds
A cold-box process for preparing a foundry shape, e.g. mold or core, that uses a binder comprising a phenolic resin component and an isocyanate component, wherein the phenolic resin component...
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6710101 |
High surface area magnesia curing agent
Binder compositions of the present invention are useful in refractory and foundry applications. The compositions include an aggregate, a liquid resole resin, and a magnesium hardening agent. The...
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6684936 |
Erosion-resistant cold-box foundry binder systems
This invention relates to erosion resistant foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy resin; (b) a...
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6662854 |
Cold-box foundry binder systems having improved shakeout
This invention relates to foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an aliphatic epoxy resin; (b) a multifunctional...
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6632527 |
Composite proppant, composite filtration media and methods for making and using same
Composite particles made of a binder and filler material are provided for use in subterranean formations. The filler is finely divided mineral and optional fiber. The particles are proppants useful...
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6604567 |
Free radically cured cold-box binders containing an alkyl silicate
This invention relates to foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy resin; (b) an acrylate; (c) an alkyl...
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6569918 |
Polymer composition for curing novolac resins
A polymer composition that can be used to cure a novolac resin at a lower temperature than conventional curing agents and with reduced emission of volatile compounds is disclosed. The curing agent...
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6559203 |
Foundry binder systems containing an alkyl resorcinol and their use
This invention relates to an organic foundry binder containing an alkyl resorcinol, or preferably a readily available mixture of alkyl resorcinols, and derivatives thereof. Preferably, the organic...
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6554051 |
Phenolic resin and binding agent for producing moulds and cores according to the phenolic resin-polyurethane method
A method of preparing foundry shapes, e.g. molds and cores, by mixing a foundry aggregate with a foundry binder, shaping the mixture in a pattern, curing the mixture, and removing the mixture from...
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6479567 |
Furan no-bake foundry binders and their use
This invention relates to furan no-bake foundry binders comprising (a) furfuryl alcohol and/or a reactive furan resin, (b) an activator selected from the group consisting of resorcinol, resorcinol...
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6429236 |
Acrylic-modified phenolic-urethane foundry binders
The subject invention relates to a foundry binder system that cures in the presence of a volatile amine curing catalyst. The binder system comprises a Part I component comprising (1) a phenolic...
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6426374 |
Foundry binder compositions and mixes that contain a divalent sulfur compound
This invention relates to foundry binder compositions that contain a divalent sulfur compound, and/or foundry mixes where the aggregate contains a divalent sulfur compound. The foundry binders and...
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6232368 |
Ester cured binders
An embodiment of the present invention provides a method for improving the tensile strength of foundry cores and molds over what may be conventionally achieved. The use of acidic methylene...
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6172133 |
Caking additive composition for forming self-hardening mold
The present invention relates to a specific binder composition for molding by self-hardening comprising 6.0 to 25.0% by weight of metal salts of aliphatic sulfonic acid, a specific hardener...
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6133359 |
Non-stick coatings
A non-stick coating composition comprising fluorocarbon resins and from 5 to 25% by weight of refractory fibers. The composition preferably additionally includes a liquid medium in which the fibers...
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6046252 |
Curatives for phenolic novolacs
A binder composition of a phenolic novolac resin and a (lower) alkoxylated triazine-formaldehyde resin curing agent is disclosed. The triazine resins have sufficient carbon atoms in the alkoxy...
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6017978 |
Polyurethane forming no-bake foundry binders
This invention relates to a polyurethane no-bake foundry binder comprising (1) phenolic resin component which comprises (a) a phenolic resin, (b) hydrofluoric acid, and (c) a silane, and (2) an...
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5962567 |
Bound multi-component sand additive
Two or more sand additive particles are made to adhere to each other, using a binder. The finished product consists of free-flowing particles that are composed of the additive particles bound...
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5925691 |
Binder composition for mold and method for producing mold
Binder compositions for a mold each comprising a specific alkaline phenol-aldehyde resin are disclosed. Methods for producing a mold using any of the binder compositions are also disclosed.
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5910521 |
Benzoxazine polymer composition
There is provided a composition that is the product of mixing and reaction a resole, an alcoholate of an amino triazine, and aldehyde. This composition is useful as a thermosetting resin. This...
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5908914 |
Benzylic ether phenolic resole resins and their uses
This invention relates to benzylic ether phenolic resole resins prepared in a sealed reaction vessel and their uses. The benzylic ether phenolic resole resins are prepared by heating phenol and an...
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5861446 |
Coated sand composition for light-alloy casting
A coated sand composition for light-alloy casting includes refractory particles blended with phenol resin, bromide and adsorbent which adsorbs decomposition product gas from the bromide.
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5856375 |
Use of bisphenol a tar in furan no-bake foundry binders
Broadly, the present invention relates to furan no-bake foundry binders where bisphenol A tar (BPAT) is used to replace a portion of the furfuryl alcohol and any conventional filler optionally...
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5840785 |
Molding process feedstock using a copper triflate catalyst
An improved feedstock material for D-RIM type PIM processes to manufacture parts. The feedstock includes metal or powders or a mixture thereof which is coated with a surfactant to improve rheology...
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5760104 |
Mixtures 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...
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5731249 |
Spray-on refractory composition
The object of the present invention is to provide a spray-on (gunning) refractory composition having high anti-stripping property, adhesive strength and corrosion resistant property suitable even...
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5650478 |
Liquid binding agents
A liquid binding agent comprised of a phenolic resin, thinning agents and a curing agent, characterized in that the phenolic resin is produced by condensation catalyzed under alkaline conditions of...
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5646199 |
Composition for mold
A binder resin composition, a curing agent composition, a caking additive composition, a kit, a casting mold composition and a process for manufacturing a casting mold are disclosed, wherein a...
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5616631 |
Binder composition for mold making, binder/curing agent composition for mold making, sand composition for mold making, and process of making mold
Sand compositions containing a binder composition and a curing agent, in which the binder composition comprises (a) a binder comprising an acid-curable resin and (b) from 0.5 to 63.0% by weight,...
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5612393 |
Casting core composition
The invention relates to a casting core composition including refractory mullite grains and 1.0-2.2 wt % of a phenolic resin for binding the mullite grains. The mullite grains are substantially...
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5602192 |
Process for producing sand mold
A foundry mold is produced from sand by blending, with one another, sand, a binder comprising a ester cured-phenolic resin, a curing agent comprising an organic ester compound and one or more...
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5591810 |
Curable furan resin(s) modified with phenolic resin(s) for use as binders for cements and coating compositions having improved thermal stability processes for their preparation and their use
Curable furan resins modified with phenolic resins for use as binders for cements and coating compositions having improved thermal stability, processes for their preparation and their use....
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5567743 |
Reclamation of ester-cured phenolic resin bonded foundry sands
This invention relates to a process for reclaiming ester-cured phenolic resin bonded sand. The process comprises contacting attrition reclaimed sand with a compound which converts potassium...
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5457142 |
Hot-box foundry mix
This invention relates to a hot-box foundry mix. The hot-box foundry mix comprises (a) an aggregate (b) a thermosetting resin; (c) a latent acid curing catalyst; and (d) an effective benchlife...
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5424376 |
Ester cured no-bake foundry binder system
The invention relates to an ester cured no-bake foundry binder system preferably comprising as separate components (a) an aqueous basic solution of a phenolic resole resin; and (b) a hardener...
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5411997 |
Mud material used for iron tap hole in blast furnace
The object of the present invention is to develop an innovative mud material which has the properties of a resin-type mud material for improving the working environment, which mud material is...
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5405881 |
Ester cured no-bake foundry binder systems
The invention relates to an ester cured no-bake foundry binder system preferably comprising as separate components (a) an aqueous basic solution of a phenolic resole resin; (b) a hardener...
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5378793 |
Process for hardening phenolic resins
This invention relates to a hardener for producing phenolic resins from phenolic resoles which comprises a partial phosphate ester. The hardener is produced by reacting condensed phosphoric acids...
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5376696 |
Foundry mixes based upon reclaimed sand
The subject invention relates to foundry mixes comprised of (a) an aqueous basic solution of a phenolic resole resin; (b) a major amount of reclaimed sand which has first been treated with an...
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5354788 |
Dialdehyde modified phenolic foundry sand core binder resins, processes for making same, and process for preparing foundry cores and molds employing same
A phenolic resole resin for use as a foundry binder which has been internally modified to reduce its hot strength and thereby enhance its shakeout property is disclosed. The resin is the reaction...
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5346942 |
Monolithic refractories
The present invention provides a monolithic refractory with self-flowability. A monolithic refractory of the first invention of the present invention contains refractory aggregates, liquid novolak...
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5334630 |
Thixotropic compositions
This invention relates to a thixotropic laminating resin composition comprising an acid hardenable phenol-aldehyde resin, a highly dispersed hydrophobic amorphous silica and a viscosity modifier...
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