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4579882 |
Shielding material of electromagnetic waves
The shielding material of electromagnetic waves of the invention is formed f a polymeric material as the matrix and an inorganic powder, e.g. mica flakes, metallized on the surface of the particles...
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4566990 |
Synergistic effect of metal flake and metal or metal coated fiber on EMI shielding effectiveness of thermoplastics
Conductive thermoplastic having high EMI shielding effectiveness comprise a thermoplastic condensation polymer and incorporated therein a synergistic combination of metal flake and conductive metal...
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4563494 |
Synthetic resin composition and process for producing the same
A synthetic resin composition is provided which comprises at least one lanthanoid-containing compound selected from the group consisting of oxides, hydroxides, inorganic and/or organic acid salts...
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4557859 |
Vulcanized olefin-based rubber composition
A vulcanized olefin-based rubber composition is disclosed which is produced by vulcanizing an olefin-based rubber composition with a sulfur-containing substance alone or with a sulfur-containing...
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4556506 |
Aqueous electroconductive compositions
Aqueous electroconductive compositions comprising (A) a partially hydrolyzed polyacrylamide, (B) a difunctional zwitterion, (C) a surfactant, (D) metallic flakes or powders and (E) water can be...
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4555422 |
Heat shrinkable magnetic shielding article
An article comprising a magnetic shielding thermoplastic polymeric material containing a powdery ferrite and a heat shrinkable thermoplastic polymeric material layer. Due to its specific structure,...
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4552688 |
Electroconductive silicone elastomer compositions
The present invention provides an electroconductive silicone elastomer composition comprising: (A) 100 parts by weight of a polydiorganosiloxane having an average degree of polymerization of 500...
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4548861 |
Foam rigidizing process and products produced therewith
A composite, rigid, structural, foam panel (11) comprising: (i) a flexible, non-structural, open cell reticulated or semi-reticulated, foam sheet (10); and (ii), an essentially closed cell resinous...
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4547312 |
Electrically conductive elastomers from emulsions
A composition which provides an elastomeric, electrically conductive product upon removal of the water at ambient conditions is described. The composition comprises an emulsion (A) having a...
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4545914 |
Conductive elastomers from electrically conductive fibers in silicone emulsion
A composition which provides an electrically conductive product upon removal of the water at ambient conditions is described. The composition comprises a dispersed phase of elastomer and a...
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4545926 |
Conductive polymer compositions and devices
Conductive polymer compositions comprises a polymeric material having dispersed therein (a) conductive particles composed of a highly conductive material and (b) a particulate filler. The...
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4518524 |
Silver coating composition for use in electronic applications and the like
A new silver dispersion coating composition containing a special additional pigment material useful as an electrically conductive coating on electronic equipment or the like. The new coating...
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4517118 |
New nickel coating composition for shielding electronic equipment and the like
A new nickel dispersion coating composition containing a special additional pigment material useful as a shielding coating to protect electronic equipment or the like from electromagnetic...
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4508640 |
Electromagnetic wave-shielding materials
An electromagnetic wave-shielding material is disclosed. The material is comprised of one or more electromagnetic wave-shielding layers and one or more surface layers. The shielding layers are...
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4493912 |
Electromagnetic wave attenuating composition
A method of preparing a novel electromagnetic wave attenuating composition comprising forming a curable film forming coating composition and thereafter dispersing an effective amount of an...
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4492648 |
Light-collecting systems using halogenated perylene derivatives as light converters
Light-collecting system, characterized in that it contains a dyestuff of the formula ##STR1## in which Hal designates identical or different halogen atoms from the series comprising fluorine,...
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4492778 |
Method for making fluorescent light-collectors
A method for making a light-collector of a transparent plastic and a fluorescent dye, wherein the monomers forming transparent plastics are mass-prepolymerized in the presence of radical catalysts...
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4487868 |
Foundry core compositions
A foundry core composition containing a rapid-curing furfuryl alcohol and phenolic resole resin system useful in the "hot-box" process is provided. This composition includes an acidic curing...
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4474685 |
High performance molding compounds for shielding electromagnetic interference
High shielding efficiencies to emissions of electromagnetic interference are achieved with molding compositions comprised of thermosetting resins and a multi-component electroconductive filler...
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4471078 |
Process for preparation of selective light absorptive methacrylic resins
A methacrylic resin capable of selectively absorbing light rays having a wavelength of 580 nm is advantageously produced either by dispersing or dissolving neodymium compound in a resin-forming...
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4468485 |
Method of preparing polymer lattices of homogeneous interpenetrated structure
A method of preparing polymer lattices of homogeneous interpenetrated structure, starting from a mixture of at least two basic prepolymer constituents is characterized by the fact that a microwave...
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4466912 |
Conductive thermoplastic compositions
Thermoplastic compositions comprising a polycarbonate resin, a graft copolymer and conductive particles are provided suitable for the preparation of molded articles characterized in that they...
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4443565 |
Thermoplastic resin composition containing metal foil fragments and process for its production
A thermoplastic resin composition comprises 100 parts by weight of metal foil fragments, from 1 to 10 parts by weight of a first polymer covering the surfaces of the metal foil fragments and...
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4414339 |
Low density, electromagnetic radiation absorption composition
Low density compositions containing colloidal-size particulates of an ELM absorber such as Fe 3 O 4 and a particulate of an ELM attenuator such as carbonyl iron dispersed in a dielectric matrix...
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4413069 |
Composition with selectively active modifier and method
Method for in situ release into a matrix of modifying reagent by exposure of selectively responsive means to electromagnetic radiation using a composition comprising a modifiable matrix and means...
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4411700 |
Desensitizer compositions
A desensitizer composition containing an imidazole derivative shown by the following general formula (I) ##STR1## wherein R 1 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or an...
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4411699 |
Desensitizer compositions
A desensitizer composition containing the amidine derivative shown by following general formula can be effectively used for partially desensitizing a developer sheet of pressure-sensitive copying...
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4395497 |
Preparation of electrically conductive soluble heteropolyphenylenes
A process for the preparation of electrically conductive heteropolyphenylenes, wherein from 0.5 to 5 per cent by weight of an activating additive is introduced, in the absence of moisture and of...
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4388422 |
Fiber-reinforced composite materials
A composite plastic material having improved shielding against electromagnetic interference is provided by injection molding a molding compound comprising elongated granules obtained by...
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4360607 |
Microwave energy sensitizing concentrate
A composition of matter suitable for sensitizing thermoplastic compositions to the heating effects of microwave energy in which the components of the composition are (1) an alcohol amine or...
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4281072 |
Amorphous complexes of polythioethers with salts
A polymeric material which comprises an amorphous solid solution formed between a metallic compound and a polymer by virtue of ether, thioether or urethane linkages contained therein, the metal of...
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4198322 |
One-step curing method for manufacture of neutron absorbing plates
A one-step curing method for the manufacture of neutron absorbing articles, such as those of long thin plate form for use in storage racks for spent nuclear fuel, includes curing a mixture of boron...
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4181626 |
Method of preparing tungsten hexacarbonyl containing polymers and polymers prepared thereby
Disclosed are light absorbing solutions of tungsten hexacarbonyl in olefinically unsaturated carboxylic acids and light absorbing polymers prepared from allyl carbonate, olefinically unsaturated...
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4165265 |
Multi-stage irradiation method of curing a photocurable coating composition
A method of curing a photo-curable coating composition comprises multi-stage irradiation steps with actinic radiations in the presence of air: the initial step involving irradiation with actinic...
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4116906 |
Coatings for preventing reflection of electromagnetic wave and coating material for forming said coatings
Coatings (or coat) for preventing reflection of electromagnetic wave on iron structures and coating material for use in forming said coatings, said coatings comprising ferrite powders and iron...
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4093684 |
Solid solderable polyurethane data signal recording medium
In a process for data signal recording in which a recording medium is impinged upon by an intensity-modulated, focused laser beam to form a hole in at least one layer of the recording medium, the...
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4046983 |
Microwave heating oven having seal means for preventing the leakage of microwave energy
A microwave heating oven has a seal located in the path formed by a gap between the oven body and the oven door for preventing microwave leakage. The seal may comprise several seals, and includes a...
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4011197 |
Method of curing organosiloxane compositions using microwaves
Organosiloxane compositions which contain at least five weight percent of organic radicals selected from aryl radicals, chlorinated aliphatic hydrocarbon radicals, fluorinated aliphatic hydrocarbon...
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3951904 |
Electromagnetic wave absorbing material containing carbon microspheres
An electromagnetic wave absorbing material comprising as a conductive material hollow carbon microspheres which are prepared by the use of a coal-base or petroleum-base pitch material and which...
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3866009 |
SEAL MEANS FOR PREVENTING THE LEAKAGE OF MICROWAVE ENERGY FROM MICROWAVE HEATING OVEN
A microwave oven having prevention material for microwave leakage located in the path formed by a gap between the oven door and the oven body. The prevention means may comprise several seals and...
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3843593 |
RADAR ABSORPTIVE COATING COMPOSITION OF AN ACRYLIC POLYMER, A POLYESTER AND AN ISOCYANATE CROSS-LINKING AGENT
A coating composition that forms a durable, flexible radar absorptive coating for aircraft that contains as the binder An acrylic graft copolymer having attached to its backbone side chain ester...
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3816281 |
POLY (VINYL PYRROLIDONE) STABILIZED POLYMERIZED EPOXY COMPOSITIONS AND PROCESS FOR IRRADIATING SAME
Polymerization of epoxides and mixtures of epoxides with lactones and vinyl compounds, polymerizable through the action of cationic catalysts, is controlled by providing, in association with a...
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3742176 |
METHOD FOR PREVENTING THE LEAKAGE OF MICROWAVE ENERGY FROM MICROWAVE HEATING OVEN
The object of the present invention is to provide a method for preventing the leakage of microwave energy through the gap between the oven and the door during the operation of the microwave heating...
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2996709 |
Flexible electromagnetic radiationabsorptive article
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