Abstract: Resinous substance suitable for use as film-forming component in anti-corrosive and can-coating paint and varnish compositions, which consists of the product obtained by reacting a normally solid polyepoxide with cashew nut oil in such amounts as to ensure equivalence between the phenolic hydroxyl groups of the cashew nut oil and the epoxy groups of the polyepoxide, and modifying the resulting reaction product with fatty acids having at least 8 carbon atoms per molecule, using a molar ratio of from 0.1:1 to 0.8:1 between said fatty acids and the cashew nut oil used in the reaction with the polyepoxide.
Abstract: Shaped articles of polyvinyl chloride resins containing low-molecular plasticizers are irradiated with ultraviolet light of a wavelength in the vacuum ultraviolet region to cause the shaped articles to form therein a cross linked layer capable of preventing otherwise possible exudation of plasticizers to their surface.
Type:
Grant
Filed:
October 27, 1978
Date of Patent:
June 9, 1981
Assignees:
Agency of Industrial Science and Technology, Ministry of International Trade & Industry
Abstract: A fuser member and method of fusing or fixing thermoplastic resin powder images to a substrate in a fuser assembly of the type wherein a polymeric release agent having functional groups is applied to the surface of the fuser member is disclosed. The fuser member comprises a base member having an elastomer surface with metal-containing filler therein. Metal containing fillers include metals, metal alloys, metal oxides and metal salts. Exemplary of such a fuser member is an aluminum base member coated with poly(vinylidene fluoride-hexafluoropropylene) copolymer having lead oxide filler dispersed therein and utilizing mercapto-functional polyorganosiloxane as a release agent.
Abstract: A coating composition comprising a carboxy-functional siloxane fluid, an organic titanate and a volatile diluent is applied to a water-impermeable surface and dried. The treated surface has the properties of promoting water-droplet formation, rather than water-film formation when rained upon and releasing frozen water, such as ice, snow, sleet and frost under a very low force.
Abstract: Uniform and repeatable formation of a resistance element on a substrate is achieved by spinning the coated objects which are still in a wet state while rotating them about an orthogonal axis to subject the wet indicator formulation to centrifugal forces which forces the indicator formulation into contact with the substrate.
Type:
Grant
Filed:
April 16, 1980
Date of Patent:
June 2, 1981
Assignee:
Calspan Corporation
Inventors:
Vito A. DePalma, Anne E. Meyer, Albert K. Ashby
Abstract: Conductors are formed in slots in a plate by filling the slots with a carrier medium having high viscosity in which metallic particles are dispersed and then, by lowering the viscosity of the medium, permitting the particles to settle to the bottom of the slots. The carrier medium is then removed, and the metal particles are bonded to the bottom of the slots. A rake-like device is also used to shape all of the electrodes so that they are uniformly spaced from the top surface of the plate.
Abstract: A surface of a substrate 11 (FIG. 2) is uniformly coated with a liquid L by wetting the surface with the liquid and compressibly contacting the wetted surface with an applicator member 10 having an outer layer 14 of a compressible liquid absorbing material with inverse sponge characteristics and an inner layer 13 of compliant material. Preferably the member is a roller 10 having a silicone rubber or polyurethane inner layer and a chamois outer layer. A plurality of the rollers 10 are arranged to be in compressive contact with the surfaces of a plurality of substrates 11 as the substrates are being removed from the liquid L (arrow A), the movement of the substrates 11 causing rotation (arrow F) of the rollers to apply a uniform coating of the liquid on the contacted surfaces.
Type:
Grant
Filed:
April 23, 1979
Date of Patent:
May 26, 1981
Assignee:
Western Electric Company, Inc.
Inventors:
Donald Dinella, Albert H. Haller, Theodore D. Polakowski, Jr.
Abstract: A spray of ink, paint, or other marking liquid is formed and sprayed through a stencil member for marking a part with a stencil character. Various means are provided to periodically move the stencil member for removal of marking fluid to keep the system clean. In one system, the stencil member is rotatable and marking fluid is removed periodically by centrifugal force by rotating the member at a sufficient speed. Removal of the marking fluid may be facilitated by the application of solvent or fresh marking fluid. In another embodiment, the stencil member is moved to a marking liquid removal location where the marking liquid is removed by suction, solvent action, and the like. The removed marking liquid may be collected by providing an absorbent member positioned to receive the removed liquid, or by providing collecting gutters or the like.
Type:
Grant
Filed:
August 8, 1979
Date of Patent:
May 26, 1981
Assignee:
Diffracto Ltd.
Inventors:
Timothy R. Pryor, David M. Alway, Omer L. Hageniers
Abstract: The invention relates to a negative electron resist for application in electron lithography. It consists of an organic copolymer formed by copolymerization of butadiene or isoprene with glycidyl acrylate or glycidyl methacrylate. The resist exhibits the high sensitivity to irradiation by electrons and, at the same time, a good adhesion to the base and a resistance towards common etching agents. The copolymer is advantageously prepared by radical polymerization and a high purity of the product does not require further purification. The electron resist manufactured in this way has the long-term workability.
Abstract: Defects in the coating of webs with aqueous solutions of hydrophilic colloids traceable to the effects of web splices are reduced. The webs are butt-joined by a splicing tape applied to their back side and are provided with a hydrophobic coating over their front side at the splicing region. The invention is particularly advantageous in the manufacture of photographic material.
Type:
Grant
Filed:
October 10, 1978
Date of Patent:
May 26, 1981
Assignee:
AGFA-GEVAERT N.V.
Inventors:
Paul A. Verkinderen, Ludovicus H. Verhoeven, Lucien A. Christiaen, Camille F. Pira, Michel L. Marckx
Abstract: The invention relates to a low-viscosity, solvent-free epoxy-based coating composition consisting essentially of:(a) an epoxy fraction consisting of polyphenol epoxy resins and mixtures thereof; and(b) a curing fraction consisting essentially of:(1) a non-volatile, aromatic extender selected from the group consisting of coal tar, distillates of coke and petroleum with boiling points above about 200.degree. C., and mixtures thereof;(2) an amine curing agent having a molecular weight of about 200-600 selected from the group consisting of:(i) cycloaliphatic diamines having a single amine group directly attached to a single ring structure and the other amine group directly attached to a carbon atom in an aliphatic chain or to a second ring structure;(ii) polyamines having polyaliphatic oxide back-bones; and,(iii) mixtures thereof; and,(3) a curing accelerator selected from the group consisting of tertiary amines.
Abstract: An improvement in a process for forming a refractory lining on the interior walls of the metallurgical vessel which interior walls are coaxial to the principal axis of the vessel wherein a refractory mass containing a binder is centrifugally slung onto the interior walls in a direction normal thereto while the vessel is at a standstill is disclosed. According to the invention, the refractory mass is initially shaped into balls prior to being centrifugally slung and the balls are centrifugally slung in rapid succession to form a mass jet. Also disclosed, is a device for so slinging a refractory mass on the walls of a vessel comprising a slinger head having a slinger wheel and a motor and at least one supply conduit for supplying refractory mass to be slung. The slinger wheel of the slinger head is disposed on one end of a shaft which shaft is extendable into a vessel, the slinger wheel being connected to an actuatable by a slinger motor.
Abstract: In application of metered finish to a high speed running yarn, a felt plug or other resistance to fluid flow is provided in the finish passageway just prior to the exit.
Abstract: Non-woven fabrics are prepared from synthetic fibers by impregnating the fibers with a liquid binder system containing a polymer of from 35 to 60 weight percent of a hard monomer, 0 to 45 weight percent of butadiene or isoprene, 10 to 50 weight percent of an acrylate having from 1 to 8 carbon atoms in the ester portion and 1 to 5 weight percent of an ethylenically unsaturated mono- or dicarboxylic acid.
Abstract: What is disclosed are a method for coating or adhering a substrate material which comprises applying to said substrate material a plastisol composition comprising a polymer of vinyl chloride and then baking the composition onto the substrate material at a temperature between about 100.degree. C. and 200.degree. C., said plastisol composition further comprising from 0.05 to 5 percent, by weight of said plastisol composition, of an adhesion improver which is a compound or compounds having an azomethine group and a silane group and plastisol compositions for practising such a method.
Type:
Grant
Filed:
September 26, 1979
Date of Patent:
May 19, 1981
Assignee:
Schering Aktiengesellschaft
Inventors:
Christian Burba, Hans-Gunter Volland, Norbert Esper
Abstract: A screen support in the form of a segmental collar for use in a screen stenciling operation. The collar segments are movable into engagement with at least the transverse marginal edges of a glass substrate for accurately locating the same relative to an overlying screen and for providing support for the screen, and especially the perforated pattern formed therein, to maintain the same in a flat, horizontal plane during the stenciling operation.
Abstract: A cannula/catheter is provided which is suitable for long term or semi-permanent through-the-skin function while permitting tissue ingrowth which promotes healing and seals out sources of infection. The catheter is provided with a sheath formed of an elastomeric coating which is glow discharge treated, folded back on itself to form a cuff and surgically implanted and anchored in place. The cuff portion of the sheath is advanced outwardly by the growth of skin adherent to its periphery while the catheter is maintained in its original position.
Abstract: Superior wire enamels comprise polyester imides prepared in the presence of a monobutyl ether of a mixed diglycol having a free secondary hydroxyl group and dissolved in a solvent comprising predominantly a polar oxygenated compound selected from a monoether or monoester of an alkylene, or polyalkylene, glycol. Electrical conductors coated with such enamels are also disclosed.
Abstract: A process for producing a corrosion-, heat- and oxidation-resistant shaped rticle which comprises coating a shaped article composed of at least one material selected from metals, carbonaceous substances and ceramics with a coating composition comprising a semi-inorganic compound, and heat-treating the coated article, said semi-inorganic compound being at least one polymer selected from the group consisting of polycarbosilanes and polycarbosiloxanes.
Type:
Grant
Filed:
November 8, 1979
Date of Patent:
May 12, 1981
Assignee:
The Foundation: The Research Institute for Special Inorganic Materials
Abstract: In the reactive deposition of the core material from a gas which is passed through the tube onto the inner wall of the tube by means of a plasma zone, while a relative motion is effected in the axial direction between the tube and a plasma-producing device, the rate of precipitation is increased without impairing the quality of the core material coat, the reactive deposition being effected at a pressure of from 1 to 100 Torr and a temperature zone being superimposed on the plasma zone.
Type:
Grant
Filed:
September 28, 1979
Date of Patent:
June 2, 1981
Assignee:
U.S. Philips Corporation
Inventors:
Dieter Kuppers, Hans Lydtin, Ludwig Rehder