Matches 251 - 300 out of 469 < 1 2 3 4 5 6 7 8 9 10 >
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4764323 Method of treating hollow articles, in particular polyethylene terephthalate preforms  
A method of treating PET preforms and bottles consists of subjecting the preforms or the bottles to a carbon dioxide atmosphere at a higher temperature than the critical temperature of carbon...
4755336 Process for making polyester blend fiber  
A process is provided wherein a polymer blend of a poly(butylene terephthalate) and about 5 to 25% by weight of poly(ethylene terephthalate) is melt spun to form a fiber or yarn which is then drawn...
4755335 Method of improving impregnation of poly (meta-phenylene isophthalamide) fibers  
A process for diffusing and subliming water-soluble and water-insoluble materials into never-dried, water-swollen aromatic polyamide fibers, using steam heated at certain temperatures.
4753761 Method for production of expansible macromolecular material and porous macromolecular membrane  
An expansible macromolecular material is produced by a method which comprises mixing an aqueous polyvinyl alcohol solution, an acidic aqueous macromolecular electrolyte solution, and a basic...
4749537 Process for the production of formed members for the disinfection of water  
A process for the production of a prolonged release shaped product for the disinfection of water or aqueous solutions which comprises shaping, by deformation at a pressure of at least 8000 kg/cm 2...
4747992 Process for fabricating a belt  
A process is disclosed for forming at least one thin substantially uniform fluid coating comprising polymeric film forming material on a cylindrical mandrel, solidifying the fluid coating to form a...
4735757 Process for producing improved ceramic fiber moldings  
A process for producing an improved ceramic fiber molding by submersing the molding into a suspension containing colloidal silica and/or colloidal alumina and chromium oxide powder. The chromium...
4732720 Process for the production of uniformly dyeable nylon 66 fiber  
A nylon 66 fiber capable of being uniformly dyed is made by extruding a melt of nylon 66, passing the extruded filaments through a heating zone provided at the surface of the extrusion nozzle and...
4731212 Method for continuously manufacturing slide fastener coupling elements  
In a method for continuously manufacturing slide fastener coupling elements, a molded strip of coupling element blanks is folded by a first folder unit about its longitudinal axis while still hot...
4721587 Process of making heat-strengthened yarn  
Application of hydrophobic silica to an anisotropic-melt forming polyester yarn reduces interfilament and intrafilament fusion during heat-strengthening. Improvements in adhesion of yarn to certain...
4704242 Method for injection molding and removing binder from large cross section ceramic shapes  
A method for fabricating injection molded ceramic shapes suitable for densification by sintering or hot isostatic pressing has been developed. The method is applicable to ceramic articles of large,...
4702497 Method of encoding a symbol or message on a plastic material and an article on which a symbol has been so encoded  
The method includes the steps of inscribing or imprinting a symbol or message on a substantially flat surface of a block of plastic while the same is at an elevated temperature by the application...
4699809 Process for preparation of coated oriented plastic container  
Disclosed is a process for the preparation of a coated oriented plastic container, which comprises coating an aqueous latex or organic solvent solution of a vinylidene chloride copolymer on at...
4668454 Heat-strengthening process  
Use of surfactant in coating of yarn from anisotropic melt-forming polyester with alkali metal salts enhances heat-strengthening acceleration effect.
4650624 Process for the production of filaments and fibres from acrylonitrile polymers  
Damage to the natural tone of acrylic fibres, produced according to a continuous dry spinning process, can be avoided if from 0.025 to 0.2% by weight of ethylene diamine tetra-acetic acid, based on...
4628978 Pneumatic radial tires  
A pneumatic radial tire having a high durability is disclosed, which comprises a carcass composed of at least one ply containing polyester fiber cords embedded in rubber. This polyester fiber cord...
4627998 Carbon fiber reinforced concrete  
A process for manufacturing a precast composite structure of a matrix of cured carbon fiber reinforced concrete and at least one ferrous metallic member at least partly buried in said matrix, by...
4624810 Production of a solid stick in a container  
A solid stick composition, in a container, is moved through a protective tunnel wherein the stick is cooled to effect solidification, remelted to fill any void in the stick, cooled to solidify, and...
4612147 Process for the manufacture of hydrophilic polyester fibers  
Polyester fibers containing one or more oxalate complexes of the general formula Me n [Z(C 2 O 4 ) m ] are drawn and subjected to a hydrosetting process at temperatures of 90° to 170° C. in...
4591465 Method of producing polymeric electret element  
In producing an electret element having piezoelectric properties by subjecting a vinylidene cyanide copolymer to a polarization treatment, the copolymer is heat-treated at a temperature below the...
4576766 Photochromic compounds and their use in photoreactive lenses  
A method is disclosed for manufacturing transparent plastic articles, primarily plano or opthalmic photoreactive lenses, which comprises incorporating fulgides or fulgimides containing an...
4574066 Process for the expeditious formation of a high strength shaped article of poly(6-oxy-2-naphthoate-4-oxybenzoate)  
Melt extruded poly(6-oxy-2-naphthoate-4-oxybenzoate) shaped articles of relatively high strength and modulus are produced in a lesser period of time than commonly heretofore required in the prior...
4562030 Process for manufacture of glass fiber-reinforced cement non-plate article  
A glass fiber-reinforced cement non-plate article which is composed of an inside mortar layer comprising a mixture of normal Portland cement and glass fiber chopped strand, an outside mortar layer...
4545947 Method of strengthening polypropylene hose  
A method of treating polypropylene hose to increase its strength and durability is provided by flexing the hose through a plurality of 360 degree rotations while in a bent form to alternately...
4533508 Metal oxide fibers from acrylate salts  
An improved process for the preparation of metal oxide fibers, which process employs the acrylate salt of the metal.
4518553 Process for producing a wax-like stick product  
A process for producing a wax-like stick product by pouring molten ingredients into the open bottom of a container for the stick, cooling to partial solidification, heating to melt the upper...
4510112 Process for fabricating ZnO-based varistors  
The invention is a process for producing ZnO-based varistors incorporating a metal oxide dopant. In one form, the invention comprises providing a varistor powder mix of colloidal particles of ZnO...
4508674 Process for the production of a polyester fiber dyeable under normal pressure  
A fiber consisting essentially of polyethylene terephthalate capable of being dyed under normal pressure and having an initial modulus at 30° C. of about 55 g/d to about 130 g/d, a relationship...
4505870 Preparation of low residual solvent content polyacrylonitrile filaments  
Polyacrylonitrile filaments having a residual solvent content of less than 5% by weight and a total linear density of over 100,000 dtex can be prepared without contact with an extracting agent for...
4503007 Polypropylene strap and method of manufacturing the same  
A polypropylene strap for use in packaging articles. The polypropylene strap has a high tensile strength, a low elongation, a high ridigity, a high abrasion resistance, and flexible surfaces, and...
4469650 Special carbon material  
A high-hardness and high-strength carbon material is produced by disposing a body of graphite carbon, e.g. precompacted graphite or a mass of powdery graphite carbon, of a predetermined shape and...
4466933 Heat-resistant foamed plastic materials  
There are provided methods for making heat-resistant, foamed, crystalline plastic materials. For example, polyethylene terephthalate may be foamed with a polycarbonate, extruded into a foamed sheet...
4456575 Process for forming a continuous filament yarn from a melt spinnable synthetic polymer  
A process for forming a continuous filament yarn from a melt-spinnable synthetic linear polymer and novel yarns of polyethylene terephthalate and yarns of polyhexamethylene adipamide produced by...
4444710 Process for increasing void volume of hollow filaments  
A process for increasing the percent void of hollow filaments by contacting the filaments with water at a temperature of at least about 92° C. for at least about 3 seconds. It is necessary that...
4429104 Prepration of shaped articles of intractable polymers  
Shaped articles composed of polymers formed from residues which are not melt processable characterized in that the shaped article has been formed from a readily processable melt of a copolymer...
4427610 Method and apparatus for curing concrete products  
A method and apparatus for rapidly manufacturing concrete or like poducts having an advanced state of cure by blending together a calcareous cementitious binder, aggregate, and water to form a mix,...
4416942 Laminates of lamellar articles and polyolefins  
A laminate of a first layer of a lamellar heterogeneous blend of a polyolefin and a condensation polymer incompatible with the polyolefin, and a second layer of a polyolefin, said layers being melt...
4399090 Method of producing mouldings and layers of inorganic materials  
Bake out is accelerated and made possible at a lower temperature when at least one metal organic compound defined by the general formula M R n in which M=V III , Mn II , Mn III , IN III , Ca,...
4383960 Process and mechanism for the elimination of excess water from a mixture of plaster and water, and the product obtained  
This invention is concerned with the plaster industry and, more precisely, with the elimination of excess water in objects containing hydratable calcium sulphate and water. It offers to subject the...
4377546 Process for producing aromatic heterocyclic polymer alloys  
A novel method is taught for preparing polymeric alloys composed of a mixture of an aromatic heterocyclic rod-like reinforcing polymer and an aromatic heterocyclic coil-like amorphous mixture with...
4374076 Method for making cast epoxy resin bodies and epoxy formulation therefor  
A method for making cast precision epoxy resin bodies and an epoxy resin formulation for use therein, the epoxy resin formulation having Component A consisting essentially of from 40 to 70% by...
4371493 Method of making bouncing silicone putty-like compositions  
Silicone putty-like substance is made by mixing dimethyl silicone gum with a boron compound (e.g., boric acid) and a reinforcing filler, and making sheet stocks of the mixture. The sheet stocks are...
4359441 Polymeric filaments and process for forming such material  
Process and apparatus for modifying melt spun filaments after extrusion and solidification by tensioning and exposing to a heated fluid environment. By this invention it is possible to directly...
4345414 Shaping process  
A process for setting in a desired shape a product at least a portion of which comprises electrostatically spun fibres is disclosed. The process comprises maintaining the product in the desired...
4343753 Method for finishing a tubular felted sleeve  
A method is disclosed for use in the finishing of sleeves (23) made by needle felting thermoplastics fibres. The sleeves (23) are placed over cylindrical supports (13) mounted for rotation about...
4342718 Method and apparatus for the thermal treatment of impregnated material webs  
A material web impregnated with a settable synthetic resin travels in vertical direction, from the bottom towards the top, through a first heat treatment zone where the solvent of the synthetic...
4332763 Method of making a cosmetic substance  
The invention makes available a cosmetic product in the form of a solid body, preferably a stick, which can be used as a cream by reason of its composition. The product is produced from a mixture...
4306856 Pre-heating apparatus for a thermoforming machine  
There is disclosed a pre-heating apparatus for a thermoforming machine for uniformly heating a thermoplastics sheet or plate throughout, the apparatus comprising a first heating section (A), a...
4305901 Wet extrusion of reinforced thermoplastic  
A method is described for the extrusion of a mixture of a water-based latex emulsion, fibers and fillers.
4287332 Process for improving the chemical resistance of aromatic polyesters  
Provess for improving the chemical resistance of copolyesters derived from aromatic dicarboxylic acids, certain substituted aromatic diols and, optionally, aromatic hydroxy acids. The process...
Matches 251 - 300 out of 469 < 1 2 3 4 5 6 7 8 9 10 >