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4806410 |
Processes for the production of antistatic or static dissipative paper, and the paper products thus produced, and apparatus utilized
Processes for the production of antistatic or static dissipative papers. The papers produced may be expeditiously used in dunnage converter machines operable to produce an antistatic (static...
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4799996 |
Metallizable substrate composites and printed circuits produced therefrom
Substrate composites, well adopted for the production of metallized printed circuits and facilely prepared by, e.g., papermaking procedures, include a central core layer comprising fibrous...
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4795676 |
Electrostatic recording material
In an electrostatic recording material being composed of a multi-layered sheet support having an electroconductive layer and a dielectric layer formed successively thereon, the number of...
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4784893 |
Heat conductive circuit board and method for manufacturing the same
A heat conductive circuit board includes an insulating layer provided on a metal substrate, and an electrically conductive metal foil formed on the insulating layer, and the insulating layer is...
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4778711 |
Paper for receiving toner images in electrophotography
An electrophotographic image transfer paper for a copier including a fixing operation, comprises a sheet of raw paper, and a receiving layer on the paper for reducing blistering of the sheet during...
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4752355 |
Pressboard and process for its preparation
High temperature resistant pressboard having a desirable combination of compression set values and oil absorption is prepared by a process whereby a low density pressboard is first prepared by...
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4752522 |
Electrostatic recording material
An electrostatic recording material comprising a substrate treated for low electric resistance and a dielectric layer formed on the substrate and composed of a composition comprising an insulating...
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4737889 |
Polarizable electrode body and method for its making
A polarizable electrode body which has as a constituting member a paper-type body having activated carbon fiber and a fibrous binding medium as its composition, and also a electric double-layer...
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4728395 |
Controlled resistivity carbon fiber paper and fabric sheet products and method of manufacture
A method of manufacturing controlled electrical resistivity carbon fiber sheet products employing a carbonizable starting material, heating and drawing the starting material (if required,)...
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4726882 |
Product and method of continuously manufacturing thin porous conductive strips by paper-making techniques as electrodes for fuel cells
A method of continuously manufacturing thin porous conductive strips, the strips including at least one layer based on a substance which contains carbon and a binder, the method comprising the...
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4711702 |
Protective containerboard
Antistatic cartons of containerboard having 0.3 to 3.5 percent by weight conductive carbon for protecting electrostatic discharge sensitive devices. The containerboard is made from an alkaline pulp...
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4689282 |
Method and paper for printing by magnetography and documents printed on paper of this type
A method for printing by magnetography under atmospheric conditions of relative humidity exceeding 65 or even 75% consists in transferring to a sheet of paper a fusible magnetic ink in powdered...
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4652324 |
Process for the production of laminated sheet
A process for the production of a laminated sheet is disclosed, which comprises impregnating a base paper for laminated sheet using a wood pulp having an α-cellulose content of 87.0% or more with...
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4647360 |
Inert carbon fiber diaphragm
A diaphragm or membrane for use in electrolysis cells resistant to chemical action thereof is disclosed. In the preferred and illustrated embodiment, a fluoropolymer binder cooperative with a...
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4645566 |
Process for producing electroconductive films
A process for producing an electroconductive film having a volume resistivity of fiber oriented direction of not more than 1×10 8 ohm cm comprising mixing from 94.5% to 40% volume of a...
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4618401 |
Battery separator material
A novel, improved battery separator material particularly adaptable for use in maintenance free batteries. The battery separator material includes a diatomaceous earth filler, an acrylate copolymer...
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4606790 |
Conductive paper and method
A multi-ply, fibrous material-based, conductive structure, and a method of making such a structure, which comprises as an integral structural member thereof at least one ply having an integral,...
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4595457 |
Oil-impregnatable insulating board
An aqueous slurry comprising fibrous particles of a heat-resistant aromatic polymer and short fibers made of said polymer or insulating inorganic short fibers, or a mixture thereof, is made into a...
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4589954 |
Fibrous sheet material for conductive high-pressure laminate
A fibrous sheet material suitable for use in a high-pressure laminate of improved electrical conductivity, which fibrous sheet material comprises a dried paper sheet material saturated with a...
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4541894 |
Metallizable, essentially isotropic polymeric substrates well adopted for printed circuits
Essentially isotropic metallizable polymeric substrates having very low coefficients of thermal expansion are well adopted for printed circuits, are facilely prepared by papermaking technique and...
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4519873 |
Process for producing fibrous sheet
A heat resistant thin paper excellent in electrical insulating property can be obtained by subjecting pulp-like particles of aromatic polyamide or aromatic polyamide-imide, which have a low...
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4455350 |
Conductive laminate sheet material and method of preparation
A static-dissipating, synthetic surface-covering sheet laminate material which comprises a plurality of cured, resin-saturated paper sheet materials laminated together under heat and pressure, and...
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4450424 |
Electrical insulating system
An insulating system is described that incorporates a cellulosic material which is impregnated with a nitrogen content no less than 0.2% by weight and a overall density not greater than 0.9 gm/cm 3...
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4450203 |
Electrographic coatings containing acrylamide copolymers
Electrically conductive paper is coated with an insulating coating comprising an organic solvent-soluble solution copolymer of monoethylenically unsaturated monomers comprising from about 1% to...
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4448807 |
Preparation of an electrographic recording material
A process for making an electrographic recording material which comprises applying to a conductive support an electrically insulating layer comprising an intimate blend of a vinyl ester...
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4446204 |
Security paper with authenticity features
Security paper with authenticity characteristics embodied therein or printed thereon which are both ferrimagnetic and also only slightly absorbed in the infrared spectral region. The presence of...
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4439485 |
Electric discharge recording materials
A discharge recording material produced by successively forming a colored layer comprising mainly carbonblack and a binder, a deposited metal layer and optionally a protective layer on a support is...
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4410584 |
Electrostatic recording member
An electrostatic recording member comprising a recording layer, an electrically conductive layer and a support, wherein the electrically conductive layer is composed of from 2 to 40 parts by weight...
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4407697 |
Process for making electrical insulating paper and the product thereof
The invention relates to a method for improving the thermal stability and dielectric integrity of a cellulosic web product. The cellulosic web is impregnated with a nitrogen donor compound such...
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4397882 |
Process for the production of hard paper
A process for the preparation of hard paper involves impregnating lengths of cellulose-containing material with plasticizer-containing mixture of a phenol-resol resin solution and cresol-resol...
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4397883 |
Electrographic recording material
An electrographic recording material comprising a conductive paper support coated with an electrically insulating layer comprising an intimate blend of a vinyl ester interpolymer latex and up to...
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4396667 |
Electrostatic recording medium
An electrostatic recording medium comprising a support, a conductive layer formed on one surface of the support and made of zinc oxide dispersed in a combination of a cationic polyelectrolyte and a...
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4387144 |
Battery separator material
A battery separator having a low electrical resistance after extended use is made by thermal consolidation and thermal embossing of a paper web formed from a furnish containing a synthetic pulp the...
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4375492 |
Dielectric record material
A reactive dielectric record material is disclosed which comprises certain chromogenic material and certain phenolic material. This record material produces images by means of a dielectric process...
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4374895 |
Electrostatic recording element
An electrostatic recording element which is capable of forming clear images thereon independently from the temperature and humidity of the ambient atmosphere, and of being stored for a long period...
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4347104 |
Moisture-insensitive electrically-conductive paper
Electrically-conductive paper comprising a mixture of electrically-conductive fibers, wood pulp and synthetic wood pulp, the ratio between the two types of pulp being so selected that the...
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4327174 |
Method of preparing a carrier material for photography
This invention relates to a carrier material for photographic purposes which is formed of paper coated with a synthetic resin. The paper contains a water soluble inorganic salt that enhances its...
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4326914 |
Diaphragms for electrochemical cells and the manufacture thereof
The invention relates to a method for the manufacture of diaphragms of fibrous potassium titanate and an organic binder for electrochemical cells and has as the object to develop such a method in...
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4325848 |
Cellulose-based electric insulation material containing boric anhydride and process for producing same
The present invention relates to a cellulose-based electric insulation material and to a process for producing thereof. The cellulose-based electric insulation material contains from 0.02 to 1.1...
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4316943 |
Water-insensitive electroconductive article comprising a substrate coated with polymers of diallyldimethyl-ammonium chloride and N-methylolacrylamide and method of coating
Electroductive article comprising a coating composition of copolymers containing from 70 percent to 85 percent by weight diallyldimethylammonium chloride and at least 15 percent but less than 30...
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4304626 |
Method for making water and solvent resistant paper
The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing...
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4293629 |
Electrostatic master and method for making the same
The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing...
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4273825 |
Electric insulating sheet
A laminated composite comprising a web of heat-resistant base material having a sufficient structural strength and a web of tiny mica flakes laid on said web of base material by multilayer-paper...
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4268595 |
Electrostatic recording material and method for the production thereof
An electrostatic recording material comprising a support having formed thereon a dielectric layer composed of a terpolymer consisting of (a) methacrylic acid, (b) a monomer selected from the group...
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4259398 |
Electrical insulating material
An electrical insulating material composed of a mica flake layer and a heat resistant base material layer is prepared by superposing the mica flake sheet containing at most 9% by weight of...
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4234378 |
Magnet paper sheet and a method for manufacturing the same
An improved method for manufacturing a magnet paper sheet which comprises: thoroughly mixing about 70-90 parts by weight of magnetoplumbite barium ferrite powder and/or magnetoplumbite strontium...
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4232101 |
Photosensitive paper for electrophotography with an electrically conductive coating of a fluorine resin
A photosensitive paper for electrophotography comprising a paper substrate, an electrophotographic photosensitive layer formed on one surface of the substrate and an electrically conductive coating...
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4222901 |
Electroconductive polymers having improved solvent holdout properties
Electroconductive copolymers of diallyldimethylammonium chloride and at least 15 percent by weight acrylamide which exhibit improved solvent holdout.
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4196044 |
Product and process for making a creped and calendered cellulosic electrical paper
A process for producing cellulosic products which are particularly suitable for use as electrical insulators. The product is produced by creping base paper or stock and thereafter calendering the...
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4180434 |
Mica paper containing cellulose
A novel electrically insulating mica paper containing cellulose, but no binding agent and having a tensile strength and a porosity higher than those of pure mica paper is disclosed. The tensile...
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