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5928582 |
Microporous membranes, method of manufacture
A microporous membrane and method of manufacture is presented utilizing irradiation and thermal induction phase separation techniques. During manufacture, microsphereulites are created by...
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5916499 |
Method for producing porous carbon material product
The bran has been less usable and have not been treated as industrial resources. The present invention is a method for producing a porous carbon material product and a hard porous carbon material...
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5910275 |
Process for producing a sponge cloth
A sponge cloth of decrystallized cellulose modified by the acetyl group content, where the average degree of substitution is 0.2 to 1.5. The cloth does not contain any organic or inorganic sulfur...
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5908598 |
Fibrous webs having enhanced electret properties
The present invention relates to a method of making a fibrous electret material which includes the steps of (1) forming a fibrous web of nonconductive thermoplastic fibers from a blend of...
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5906780 |
Process for producing a sponge
A sponge of decrystallized cellulose modified by an acetyl group content, where the average degree of substitution is 0.2 to 1.5. No organic or inorganic sulfur compounds are present in the sponge....
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5900197 |
Production process of porous retainer for rolling bearing
A process is provided for the production of a porous retainer for use in a rolling bearing for holding rolling elements. The process comprises the following steps: (1) blending a polyimide...
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5884670 |
Synthetic resin tube and producing method thereof
A synthetic resin tube comprises an internal layer which is made of non-rigid synthetic resin and has a substantially smooth inner circumferential surface, and an external layer which is formed by...
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5885493 |
Method of drying articles
A method of drying a green particulate article includes the steps of: a. Providing a green article which includes a particulate material and a pore phase material, the pore phase material...
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5877270 |
Water solvent extraction degreasing method and molded products produced therewith
A water solvent extraction degreasing method capable of reducing degreasing time without consideration of abrupt decomposition/vaporization and swelling caused by heat. An organic binder is removed...
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5858893 |
Ceramic composition with low dielectric constant and method of making same
Multiphase ceramic materials for use in electronic applications such as patch antennas and multilayered ceramic devices may be fabricated by providing a novel combination of a glassy precursor...
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5859175 |
Process for the preparation of polyether amide solutions, steam-sterilizable dialysis membranes obtainable using the polyether-amide solutions, and a process for the production of these membranes
Process for the preparation of polyether-amide solutions, steam-sterilizable dialysis membranes obtainable using the polyether-amide solutions, and a process for the production of these membranes....
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5855718 |
Method of and apparatus for making partially solidified three-dimensional objects on a layer-by-layer basis from a solidifiable medium
A method and apparatus for building three-dimensional objects having an internal structure, wherein the structure is discontinuous and is composed from a plurality of patterns and bridging patterns...
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5854379 |
Thermal decomposition degreasing method and molded products thereof
A low-cost thermal decomposition degreasing method capable of drastically reducing the time required for a degreasing process which involves heating, vaporization and thermal decomposition, while...
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5846460 |
Method of preparing silicon nitride porous body
A silicon nitride ceramic porous body having excellent acid and alkali resistance, mechanical strength, and durability can be employed as a filter or a catalytic carrier. The silicon nitride porous...
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5830554 |
Method of producing of microporous polyolefin membrane
An efficient method of producing a microporous polyolefin membrane having improved tensile strength and pierce strength is provided, in which a solution having dissolved therein 5% by weight to 50%...
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5789075 |
Aerogel composites, process for producing the same and their use
The present invention relates to mat-shaped composites having porosities above 60% and densities below 0.6 g/cm 3 , comprising an aerogel and fibers dispersed therein, the aerogel having cracks and...
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5788888 |
Three-dimensional articles of lyotropic polymers and methods for the preparation
Described is a process for preparing a three-dimensional article of a lyotropic polymer comprising the steps of (a) forming a shaped article of a liquid crystalline solution of a lyotropic polymer;...
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5772934 |
Process to produce lithium-polymer batteries
A polymer bonded sheet product suitable for use as an electrode in a non-aqueous battery system. A porous electrode sheet is impregnated with a solid polymer electrolyte, so as to diffuse into the...
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5772935 |
Method of continuous extraction of plasticizer from battery separator membranes and the like during their manufacture, and extractor apparatus therefor
Plasticizer extraction from polymer membranes such as battery separators and the like, by exposure to a solvent-water combination. The water or steam is supplied to form an additional interface in...
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5770121 |
Solid state coagulation of optical quality polymer thin films
A method for preparing optical quality, thin films of polymers and co-polymers, as well as blends of such polymers or co-polymers with flexible polymers and co-polymers which comprises (a)...
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5767230 |
Process for removing volatiles from post-consumer recycled polyolefin chips
A process comprising contacting PCR polyolefin chips containing volatile impurities with a heated gas at a superficial velocity sufficient to substantially reduce the volatile impurities. This...
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5759678 |
High-strength porous film and process for producing the same
The present invention relates to a high-strength porous film or sheet consisting essentially of a high-molecular-weight polyethylene resin having a viscosity-average molecular weight of not less...
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5750065 |
Adsorption of PCB's using biosorbents
A method for producing biosorbents for adsorption of PCB's in which at least one proteinaceous material is contacted with a molar excess of at least one PCB congener mixture, forming a protein/PCB...
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5733488 |
Method of making a foamable film
The present invention is directed to a method of making a foamable film of at least one thermoplastic resin with at least one liquid blowing agent incorporated therein, said method comprising...
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5733485 |
Elimination of surface irregularities on the wraparound window of a torpedo nose array
The present invention relates to a method for eliminating surface irregulties on the wraparound window of a torpedo nose array. The method broadly comprises the steps of preheating an oven to a...
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5723083 |
Method for forming parts from inorganic particulate material
A method for forming parts from inorganic particulate materials is diclosed. The method utilizes a two-component binder composition which is removable at a faster rate than conventional binder...
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5718862 |
Secondary shaping of ionically crosslinked polymer compositions for medical devices
A method for preparing a medical device having the steps: (1) treating an ionically crosslinked hydrogel to strip a substantial amount of the ionic crosslinks while retaining the hydrogel in a...
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5702652 |
Controlled cooling of porous materials
Method and apparatus for cooling porous materials whereby first gases are passed through a porous material, such as polyurethane foam, in a first zone at a predetermined flow rate to cool the...
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5702655 |
Method for charging powdery heat insulator into a thermally insulated, double-shelled tank
Provided is a method for charging a powdery heat insulator into a thermally insulated, double-shelled tank between its inner vessel and outer vessel. The method comprises causing a powdery heat...
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5691397 |
Isolation of the calcium-phosphate crystals of bone
The present invention is a process for first removing and isolating the calcium-phosphate crystals of bone from a substantial amount of the organic matrix and cellular constituents of bone without...
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5683634 |
Process of making porous films or sheets
A porous film or sheet including a resin composition mainly of an ultra-high molecular weight polyethylene having a viscosity-average molecular weight of not less than 500,000, and having a...
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5676905 |
Methods for manufacturing articles of manufacture from hydraulically settable mixtures
Methods and systems for readily and economically manufacturing hydraulically settable articles, particularly containers, from microstructurally engineered hydraulically settable mixtures. The...
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5667691 |
Process for extracting water and acetic acid from the aqueous phase of cellulose acetate
A new process has been developed for separating the water and acetic acid present in the aqueous phase contained in cellulose acetate flakes precipitated from esterification solutions of cellulose....
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5665289 |
Solid polymer solution binders for shaping of finely-divided inert particles
A new class of binders for binding finely divided inert inorganic molding particles when shaped into objects by known mechanical shaping techniques such as injection molding. The novel binders are...
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5658512 |
Method for producing a tire forming bladder
A method for producing a bladder includes shaping a mass of crude rubber containing an oil component into a specified bladder shape by a mold; vulcanizing the shaped bladder in the mold; removing...
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5643511 |
Process for making microporous films of ultrahigh molecular weight polyethylene
The invention relates to microporous films of ultrahigh molecular weight polyethylene and to a process for the preparation thereof by forming a solution of UHMWPE in an evaporable solvent into a...
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5635121 |
Apparatus and process for filing ceramics
Making denser ceramic sinters by carrying out the sintering operation at elevated temperatures and in 100% oxygen at a pressure of at least 1.5 atmospheres, and then cooling the sinter without...
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5631303 |
Process for removing plastics from microstructures
A process for removing plastics from microstructures is disclosed. The metallic microstructure is treated with a high-boiling fluid at a temperature above 140° C. for 10 to 90 minutes and...
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5626805 |
Process of making vinylidene fluoride porous membrane
A method of making a polyvinylidene fluoride porous membrane having an asymmetric structure, excellent mechanical strength and a narrow range of pore diameter distribution comprises: blending (i)...
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5626814 |
Method of making a self-inflating structure
A self-inflating structure consists essentially of a block of open-cell, resiliently compressible, foam material which has been shaped to a desired form and covered with an airtight envelope having...
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5624627 |
Process for preparing surface-modified biaxially oriented film of high molecular weight polyethylene
The biaxially oriented films of high molecular weight polyethylene is formed and its surface modified to provide a hydrophilic property to the resulting film. The film is prepared by melt-kneading...
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5611369 |
Concrete hydration system
A hydration system having one or more units (10, 10', 10") for providing a continuous flow of water to newly placed concrete has a plurality of spaced elongated soaker tubes (12) extending parallel...
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5602197 |
Reversible polymer gel binders for powder forming
Thermoplastic binder compositions comprising a high molecular weight polymer component and a molten wax component are compounded with sinterable ceramic or other inorganic powders. Upon cooling, a...
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5578257 |
Binder removal from multilayer ceramic structures
A process for removing poly(vinylbutyral) binder from multilayer alumina structures containing metal circuitry. The green structure is heated in a defined atmosphere which is reducing or neutral...
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5562876 |
Method of maintaining a low residue open-cell felted foam
Open-Cell urethane foam is thoroughly dried in a convection oven or controlled atmosphere and then compressed with heat to a felt immediately. Alternatively, the dried foam is sealed in a plastic...
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5536543 |
Illuminated soft feel button
An illuminated plastic lighting of alphanumeric symbols, such as letters, numbers or words, in soft feel buttons is provided, wherein a translucent rigid base portion is covered with a soft opaque...
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5507984 |
Method for preparing poly(phenylene sulfide) membranes
A process is disclosed for preparing a poly(phenylene sulfide) (PPS) separation membrane in which a PPS is treated with oxygen to increase its bulk viscosity to at least about 20,000 poise. The...
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5505888 |
Process for preparation of cellulose acetate fibers useful in preparation of paper products
A process to prepare cellulose acetate fibers useful for preparation of paper products. This process includes (A) tensioning a running band of cellulose acetate filter tow, (B) contacting the...
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5486331 |
Process for degreasing ceramic molded bodies
A process for degreasing ceramic molded bodies containing a large quantity of paraffin wax includes a constant-temperature heating conducted for a certain period of time appropriately determined...
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5468438 |
Production method of molding strips
When forming a molding strip of varying cross-sectional shape along its length, lengths for finishing into molding strips are extruded with a prescribed cross-sectional shape through an extrusion...
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