| Patent Number |
Title Of Patent |
Date Issued |
| 6162840 |
Impregnation, sealing and coating compounds |
December 19, 2000 |
| The invention concerns the use of monomer-free saturated or unsaturated polyester resins or mixtures of saturated and unsaturated polyester resins containing structural units of general formulae (I) and/or (II), in which n=1-10, as impregnation, sealing and coating compounds for electric |
| 4435541 |
Antistatic thermoplastic molding masses containing styrene-acrylonitrile grafted polyether |
March 6, 1984 |
| Thermoplastic molding masses based on the copolymerization of styrene and/or .alpha.-methylstyrene and acrylonitrile, which may be modified to be impact resistant with rubberlike polymers, are made antistatic by adding 0.01 to 1.5 percent by weight of a graft polyol which is a polyhy |
| 4390686 |
Polyester-amide resin |
June 28, 1983 |
| A method of insulating an electrical conductor by applying thereto a coating of a polyesterimide resin which can be hardened through its free OH groups from a resin melt at above 100.degree. C., wherein the resin used is solvent-free and has been prepared by esterification or ester-e |
| 4360543 |
Method of insulating an electrical conductor |
November 23, 1982 |
| A method of insulating an electrical conductor by applying thereto a coating of a polyesterimide resin which can be hardened through its free OH groups from a resin melt at above 100.degree. C., wherein the resin used is solvent-free and has been prepared by esterification or ester-e |
| 4186241 |
Insulated wire and method for producing same |
January 29, 1980 |
| A partially crystalline thermoplastic polyamide for use in the preparation of insulated wires through the extrusion of a thermoplastic coating, consisting of terephthalic acid or a functional derivative thereof, hexamethylenediamine and isophoronediamine; also disclosed are a process |
| 4170684 |
Conductors having insulation of polyester imide resin |
October 9, 1979 |
| Polyester imide resins containing 5-membered imide rings between the ester groups. The resins are soluble in cresol, and cresol solutions are useful as enameling lacquers for wire conductors. |
| 4169085 |
Aqueous electrically insulating varnish and a process for its production |
September 25, 1979 |
| An aqueous electrically insulating varnish is provided along with a process for producing the varnish; the process comprises the steps of reacting cyclopentane tetracarboxylic acid with dicyclic, diprimary aromatic diamine in the presence of water and neutralizing the condensation produc |
| 4147817 |
Process for insulating electrical conductors with heat-resistant resins |
April 3, 1979 |
| A process for providing electrical conductors with a heat resistant, insulating coating of resin. The process comprises passing the conductors through a melt of a resin which is polyester curable through free hydroxy groups, having crosslinking equivalent weight of 400-1600, which is |
| 4145474 |
Method of manufacturing insulated electric wire of the enamelled-wire type by extrusion |
March 20, 1979 |
| A method of extruding a thin sheath of plastic material about electric wire, utilizing a plastic material capable of being shaped by extrusion after having been heated in a screw extruder, this material exhibiting the technical characteristics required for enamel-type insulation after |
| 4145351 |
Diimidodicarboxylic acids |
March 20, 1979 |
| Diimidodicarboxylic acids for the preparation of polyester resins which in addition to ester groups, contain imide groups between functional groups of the molecule. The imide groups are in the form of 5-membered imide rings resulting from the condensation of, for example, an aromatic |
| 4145334 |
Polyester imide resins |
March 20, 1979 |
| Polyester imide resin having ester groups of acid and alcohol moieties in the chain, and also in the chain a content of 5-membered imide rings of the general formula: ##STR1## The resin is soluble in cresol solvent and can be combined with such solvents to form a lacquer suitable |
| 4131693 |
Hardenable polyesterurethane composition for producing a directly tinnable wire |
December 26, 1978 |
| A varnish is provided for coating a wire which is directly tinnable. The varnish comprises hardenable polyester urethane having a urethane equivalent weight of 150-850, the polyester being formed as the product of the reaction of a saturated polyester containing at least two hydroxyl |
| 4104221 |
Process for making water diluted electroinsulation enamels |
August 1, 1978 |
| Water dilutable electroinsulation enamels are made by reacting a hydroxyl group containing polyesteramide of low acid number with at least one amine in an amount of 5 to 30% by weight relative to the weight of the ester imide whereupon the reaction product is diluted with water until it |
| 3950452 |
Polyurethane high-voltage insulator appliance |
April 13, 1976 |
| A weather-resistant high-voltage electrical insulator appliance, or at least a portion thereof which is exposed to the atmosphere, is formed of a solvent-free aliphatic polyurethane which is at least substantially free of aromatic groups. |
