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4943611 |
Resin composition for spacers of information recording disc
A resin composition for spacers of an information recording disc which comprises: (A) a random copolymer of ethylene and at least one cycloolefin having an intrinsic viscosity [η] of from 0.05 to...
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4639908 |
High density information records made of conductive resin compositions comprising inorganic power stabilizers
High density information records made of vinyl chloride resin compositions which comprise conductive powder and inorganic compounds in the form of powder having an antacidic action and a...
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4631717 |
High density information records of an electrostatic capacitance type
High density information records formed from conductive resin compositions which comprise a graft polymer obtained by subjecting vinyl chloride monomer to graft polymerization with a copolymer of...
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4592861 |
Antistatic thermoplastic composition comprising a graft polymer, halogenated thermoplastic polymer and conductive carbon black
An antistatic thermoplastic composition comprising a blend of a thermoplastic graft polymer; a thermoplastic halogenated polymer; and an amount of conductive carbon black effective to cause the...
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4582863 |
Polymer concentrate containing an antistatic agent, process for the production thereof and the use thereof
A polymer concentrate containing an antistatic agent and a process for the production thereof are provided, in which the antistatic agent is applied to the particle surface of a finely divided...
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4569962 |
Perfluoropolyether compositions which are soluble in non-fluorinated solvents
Polymeric compositions are provided in which perfluoropolyethers have been solubilized in non-fluorinated solvents by combining them with a solubilizing agent such as azotic conjugated compounds,...
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4558087 |
Vinyl chloride resin composition for production of hard articles
A vinyl chloride resin composition for production of hard articles. The composition comprises 100 parts by weight of a graft polymer and not more than 40 parts by weight of electrically conductive...
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4548739 |
High density information records made of conductive resin compositions comprising a specifically-treated vinyl chloride-base resin
A high density information record of the electrostatic capacitance type comprising a record substrate on which signal information is recorded as geometric variations. The record substrate is made...
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4515843 |
Disc-shaped information carrier having a high storage density
A disc-shaped information carrier produced by thermoplastic deformation comprising a pressed mass including a co-polymer of vinyl chloride having additives incorporated therein. The carrier has...
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4515830 |
Solvent-cast capacitive high density information disc
Sandwich-type capacitive electronic discs having thin conductive layers are prepared by adding a thermally processed conductive molding composition comprising a thermoplastic resin, conductive...
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4472295 |
Conductive molding composition and discs therefrom
A high density capacitive information disc recording medium fabricated from a conductive plastic molding composition including a moldable plastic and conductive carbon black particles having a...
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4465615 |
Electroconductive resin composition and a videodisc record
An electroconductive resin composition is a blend of 5-30% by weight carbon black and a graft-polymer. The graft-polymer is obtained by graft polymerizing 99-76 parts by weight of monomeric vinyl...
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4430460 |
Process for preparing conductive PVC molding compositions
Low density conductive carbon black agglomerated particles are finely divided to a particle size below 0.044 millimeter and added in a portionwise manner to a PVC resin in a closed system. The...
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4412941 |
Recording disc compositions comprising polymers of monovinyl-substituted hydrocarbons, conductive carbon black and lubricants
Electrically-conductive compositions comprising about 65-85 weight percent of a resin component based on conjugated alkadienes having 4 to 8 carbon atoms and monovinyl-substituted arenes having 8...
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4384055 |
Hard vinyl chloride resin composition for information signal recording media
A hard vinyl chloride resin composition for information signal recording media, said composition consisting essentially of (A) 100 parts by weight of a copolymer having a specific viscosity of...
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4378310 |
Conductive molding composition
An improved molding composition having a high thermal stability, including a vinyl chloride/vinyl acetate copolymer-based resin, sufficient finely divided conductive particles to obtain the desired...
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4349385 |
Method of preparing a FeOOH pigment
The invention relates to a method of manufacturing an improved pigment of FeOOH particles. The starting material is an acidic or alkaline aqueous dispersion of FeOOH particles which has been...
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4299736 |
Conductive molding composition and discs therefrom
Polyvinyl chloride base molding compositions containing conductive carbon particles which have been treated with a fatty acid chloride have reduced melt viscosities, improved processabilities, and...
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4283315 |
Gramophone record composition
Gramophone records are prepared from a vinyl polymer composition containing a fatty acid soap of an alkaline earth metal or zinc, sugar or polyol fatty acid esters and fatty acid mixed glycerides...
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4280941 |
Video discs and molding compositions therefor
A polyvinyl chloride based molding composition containing polymer grafted conductive carbon particles has good processability, low heat distortion temperature and good dispersion of the conductive...
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4228050 |
Conductive molding composition
An improved molding composition having a bulk resistivity below about 500 ohm-cm at 900 megahertz for compression molding video discs comprising sufficient conductive carbon black particles to...
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4176104 |
Polystyrene phonograph record injection molding compositions of improved transparency
Phonograph record molding compositions having polystyrene as the major constituent are formulated to have wear resistance properties superior to other polystyrene injection molded compositions...
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4151132 |
Molding composition
An improved molding composition for compression molding non-coated video discs containing about 12-20 percent of conductive carbon black particles, about 10 percent of a vinyl chloride-vinyl...
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4129536 |
Vinyl chloride based injection molding composition
A vinyl chloride based injection molding composition comprises a vinyl chloride-propylene copolymer, a mercapto tin stabilizer, an acrylic processing aid and an ester wax lubricant. This...
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4125654 |
Information signal recording disc
A phonograph or video disc comprises at least one unsaturated nitrile copolymer and has therein an unsaturated nitrile content of from 40 to 90 percent by weight, and the disc exhibits a Clash-Berg...
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4088617 |
Phonographic record molding composition
A phonograph record molding composition formed by copolymerizing a vinyl aromatic monomer with an acrylic ester monomer in the presence of one or more waxes which composition is especially suitable...
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3975321 |
Sound reproduction compositions
Novel sound reproduction molding compositions of good processing qualities are disclosed, based on copolymer of vinyl chloride and propylene. Records obtained therefrom, have good audio qualities...
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3960790 |
Disc record and method of compounding disc record composition
A method of making a disc record molding composition by compounding a copolymer of vinyl chloride-vinyl acetate and a homopolymer of vinyl chloride, with carbon black, a resin stabilizer, a resin...
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3957917 |
Resin composition for shaping information carrier
A composition for molding information carriers, such composition consisting of a uniformly kneaded mixture of (I) 100 parts by weight of a composite resin having a specific viscosity of 0.16 to...
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3942996 |
Radiation sensitive recording material
A radiation sensitive recording material contains a layer of a layer-forming substance and incorporated therein an organic halogen compound capable of producing hydrogenhalide when struck by high...
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3846361 |
PHONOGRAPH RECORD COMPOSITION AND PROCESS
A phonograph record composition including polyvinyl chloride thermoplastic resin alone or in combination with a copolymer of vinyl chloride and vinyl acetate, toluene in an amount sufficient to...
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3423347 |
COMPOSITIONS CONTAINING A THERMOPLASTIC RESIN AND A TETRAESTER OF PENTAERYTHRITOL
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3280063 |
Esters of a monohydric aliphatic alcohol having 10-20 carbon atoms with a mononuclear aromatic acid having 3-6 carboxy groups as flow promoters for sound record compositions
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3135379 |
Phonograph record containing polypropylene
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2993234 |
Method of manufacturing antistatic record disks
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2979476 |
Method of blending polystyrene and wax
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2954363 |
Stabilized masses of polyvinyl compounds containing halogen
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2944045 |
Stabilized vinyl resin compositions
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2927092 |
Polystyrene phonograph record compositions
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2830962 |
Process of preparing wax modified polystyrene compositions
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2792309 |
Phonograph records containing silicone oils and resins
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2787602 |
Phonograph record
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2779744 |
Polystyrene phonograph record composition and method of making same
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3833541 |
Title is not available
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3775357 |
Title is not available
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3770667 |
Title is not available
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