Class 106/38.8 - Wax, bituminous material or tarry residue containing

Subclass of Class 106 - Compositions: coating or plastic
Definition: Compositions in the preparation of which a wax, bituminous
No. of patents: 30
Last issue date: 03/11/2008

Number	Title	Issue Date
7341619	Olefin waxes having improved hardness or viscosity In one embodiment, we disclose hardened olefin waxes and processes for preparing them. In another embodiment, we disclose oxidized olefin waxes having low viscosity and processes for preparing them. The waxes are suitable for use as polishes, coatings, or inks, amon...	03/11/2008
6921786	Pattern material An expendable and machinable pattern material capable of being cast in large blocks without shrinkage and machined to a casting shape useful in the lost pattern process of investment casting, the material consisting essentially of ethylene-vinyl resin, fatty acid ke...	07/26/2005
6918954	Colloidal silicate dispersion, method for its preparation and its use The present invention is directed to a colloidal aqueous silicate dispersion containing silica and alumina, the molar ratio between silica and alumina being 2-12, as well as to a method for its preparation. Said method is characterized by dissolving a particulate mi...	07/19/2005
6485553	Filler material and wax composition for use in investment casting A wax composition for use in investment casting having improved properties includes polyethylene terephthalate as a filler material. The amount of polyethylene terephthalate used in the wax composition ranges from about 5 to about 50 parts by weight of th...	11/26/2002
6237670	Treatment of thermoplastic materials with chelating agents, and related products The metal content of a thermoplastic composition containing an undesirably high concentration of metal can be reduced by adding to 100 parts by weight of the composition at least about 0.3 parts by weight of a chelating agent and sufficient water to chela...	05/29/2001
6069195	Lubricant system for polyvinylchloride, polyvinylchloride articles, and a method for manufacturing the same A lubricant system providing desirable properties for both internal and external lubricity for polyvinylchloride resins is disclosed. Also disclosed is the use of the lubricants disclosed herein in an extruder. Polyvinylchloride articles obtained using th...	05/30/2000
5983982	Investment casting with improved as-cast surface finish The pattern material with substantially spherical filler particulates is used to produce investment cast components with improved surface quality, reduced finishing costs, and reduced core breakage. The pattern material comprises substantially spherical p...	11/16/1999
5731272	Lubricant and method of manufacturing briquette using the same Disclosed is a method of manufacturing briquettes of reduced iron, wherein a residual oil on distillation containing petroleum asphalt or petroleum pitch is sprayed on the surfaces of rolls. The petroleum asphalt or petroleum pitch are thermally cracked i...	03/24/1998
5618336	External release agent An external release agent is disclosed which contains: I. Light Pigments: 10 to 60 parts by weight of amorphous silica gel powder, optionally containing up to approximately 65% by weight of water of crystallization and having an average particle diameter of ar...	04/08/1997
5587008	Sand molding media for iron castings A sand molding medium for the use in founding of iron. The medium includes wettable uintaite as a carbon source supplemental to sea coal. The wettable uintaite is included in a carbon additive that is combined with sea coal to formulate the carbon compone...	12/24/1996
5372637	Aqueous compositions for delivering active ingredients and methods of making and using same An aqueous composition comprising an active ingredient, a volatile organic compound and water, which is homogenized so that at least 90% by weight of the active ingredient are in particles of less than 1.0 micron in diameter, may be used to deliver an act...	12/13/1994
5176864	Lost wax process utilizing a high temperature wax-based material The present invention is a wax-based material for use in the lost wax process where the wax must be capable of withstanding temperatures of up to 350° F., the wax-based material including: (a) a high temperature brittle wax; (b) about 5-30 wt % organic p...	01/05/1993
5006583	Filler and wax composition for investment casting Irregular shaped particles of cross-linked copolymer of styrene-divinylbenzene in which essentially 90% or more of the particles pass through a 100 mesh screen (U.S. Sieve Series) and essentially 50% pass through a 200 mesh screen (U.S. Sieve Series) is p...	04/09/1991
4585485	Refractory sliding nozzle plate A refractory for use in casting of molten metal which essentially comprises refractory material comprising corundum and monoclinic zirconia as principal mineral phase and including Al2 O3 and ZrO2, silicon-containing powde...	04/29/1986
4518288	Machinable wax for prototype patterns A block of machinable wax (B) is anchored to a fastening plate (A) with a layer of adhesive (20) in one embodiment and with wax machine screws (30, 32, 34) in another embodiment. The fastening plate and machinable wax block are adapted to be used in machi...	05/21/1985
4505750	Foundry mold and core sands The addition of a hydrophobic, organophilic, water-wettable fibrous material to foundry sands increases the flowability of the sand and enables the production of molds or cores from the foundry sand which retain the sharp edges of the mold, inhibits expan...	03/19/1985
4316744	High ratio silicate foundry sand binders Binder solution for preparing sand cores of initial high strength but with essentially no strength after casting metals above 700° C., said binder solution comprising an aqueous solution of sodium, potassium or lithium silicate having an overall molar ra...	02/23/1982
4265665	Foundry molds containing glassy metal alloy filaments Foundry sand molds and cores are provided which incorporate glassy metal reinforcing filaments. Molds prepared from the sand composition of this invention provide greater strength before and during metal casting. As the casting solidifies, the temperature...	05/05/1981
4203771	Green sand composition for casting Properties of a green sand for casting composed of siliceous sand, a combination of Na-type and Ca-type bentonite and water can be improved by utilizing surface activating characteristics of a waste liquor from the pulp manufacturing process. When a pulp ...	05/20/1980
4174225	Manufacturing moulds or mould cores A method for manufacturing casting molds or mold cores comprising shaping an aqueous mixture of sand, binder, a hydrocarbon resinous material and a porous, heat-resistant inorganic material....	11/13/1979
4162238	Foundry mold or core compositions and method Compositions and method for producing foundry sand cores or molds of initial high strength but with essentially no strength after casting metals above 700° C. which involves shaping and setting a composition containing foundry sand and a binder comprisin...	07/24/1979
4144075	Wax composition for investment casting and casting method Investment casting wax compositions having improved properties and characteristics and improved usefulness in investment casting processes comprises base wax compositions having incorporated therein hexamethylenetetramine, HMTA, as a filler in an amount o...	03/13/1979
4137085	Green sand composition for casting Properties of a green sand for casting composed of siliceous sand, bentonite and water can be improved by utilizing surface activating characteristics of a waste liquor from the pulp manufacturing process. When a pulp cooking waste liquor having a pH of 9...	01/30/1979
4108672	Alumina core for casting DS materials An alumina core for investment casting directionally solidified eutectic and superalloy materials consists of a central portion which has porosity which is continuous throughout. The material of the central portion has a micro-structure which is character...	08/22/1978
4089691	Method for manufacturing foundry cores A method for manufacturing a foundry core comprising mixing sand and a binder system containing a saccharide-containing material, glyoxal and an alkali halide....	05/16/1978
4078035	Method for making disposable model for precision investment casting A method for making a disposable model for a precision investment casting, which comprises casting a naphthalene or para-dichlorobenzene-containing modeling material into a pattern mold at a temperature of 150° C or less, preferably 80 to 150° C and fur...	03/07/1978
4064083	Pattern material composition For use in making investment molds by the lost pattern process, a pattern material which is machinable and has the capability of being melted out of the molds without cracking them, the material consisting basically of an ethylene-vinyl resin and at least...	12/20/1977
4046579	Disposable pattern composition A disposable pattern material for investment casting processes incorporating 4,4'-isopropylidene diphenol and a thermoplastic material....	09/06/1977
4017433	Pitch water soluble resin and alkyd resin as binder composition for refractory particles A binder composition comprising pitch, an aqueous solution of a water soluble resin, and an organic solvent solution of a thermosetting polymer. The binding composition in combination with particulate refractory aggregate forms a molding composition suita...	04/12/1977
3964915	Investment wax An improved pattern material for the production of precision investment casting molds, the pattern material being characterized by a low injection temperature, a low coefficient of expansion and insubstantial cavitation after injection into a pattern die....	06/22/1976

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Class 106/38.8 - Wax, bituminous material or tarry residue containing