Abstract: A process for producing nonflammable laminated materials which includes the steps of impregnating a cellulose-containing material with an impregnating solution containing a phenolic-resol resin solution, at least one plasticizer for the resin and optionally flameproofing agents, subsequently drying the impregnated material to effect preliminary condensation of the resin and thereafter curing superimposed layers of the impregnated and preliminary condensed material by the application of heat and pressure. The phenol-resol resin solution used contains 50-80% by weight of an ammonia alkaline-condensed phenol-resol resin with a solids content of 65-80% by weight and with a molecular weight distribution determined by gel chromatography of: dimers 20-26%; tri- and tetramers 6-12%; penta- and oligomers 24-36%; expressed in percent per unit area and hexamethylenetetramine in amounts of 1-15% by weight based on the weight of the impregnating solution.

Abstract: A jointer for laminated tapes for use in the production of sheathed cables formed by longitudinally or helically wrapping cable cores with metal tapes laminated with plastic films and by joining the overlapped portions of said tapes by way of heat fusion is disclosed. The method comprises the use of pressing blocks consisting of metal material having a high heat conductivity and respectively having machined surfaces opposing in parallel to each other for the application of uniform pressure to both surfaces of the laminated tapes held therebetween. A heating piece is provided which is electrically insulated from and mounted to the bottom of the pressing block and having relatively high electric resistance and being supplied with electric current thereby pulse heating the portions of the laminated tapes to be spliced.

Abstract: A method of manufacturing laminated panels or foils consisting of a lead sheet and a synthetic sheet by using lead alloyed with antimony and/or coating the lead sheet with an alloy of lead. Optionally a protective film serving as an adhesive may be applied onto the surface that is to be welded to the synthetic material. A novel compound material consisting of a lead sheet and a plastics sheet.

Abstract: A method is disclosed for making a ring for sealing the opening between a reactor vessel and the wall of the cavity in which it sits. The method permits forming the sealing ring in segments at an off-site location, thereby eliminating the transportation problems encountered with an integral sealing ring. According to the method, seals and coatings can be applied to the individual segments before the segments are shipped, and the seals and coatings are completed when the sealing ring has been assembled at the site. This allows a segmented ring to be provided without high on-site fabrication costs.

Abstract: The disclosed method for forming an epoxy adhesive-bonded joint between a plurality of substrates is particularly well suited to an assembly line operation. The method involves forming an intimate mixture of the two components of a two-part adhesive system under conditions such that substantial curing will not occur until heat and/or pressure are applied. The application of heat and/or pressure for a short period of time initiates the curing reaction which will continue to completion under substantially normal ambient conditions. The initial bond strength is sufficient to hold mated substrates together with the bond strength increasing even when the curing process is completed under normal ambient conditions. For example, substrates can be coated with an intimate mixture of a two-part system suitable for use in this invention, stored for a period of time, mated on an assembly line under cure initiation conditions, and allowed to cure at normal room temperature and atmospheric pressure.

Abstract: A bonding material is disclosed which is stable at high temperature and radiation levels, which may be conductive and which is particularly suited as a couplant to ultrasonically and electrically couple an ultrasonic or acoustic transducer to a surface. The material comprises a carborane polysiloxane adhesive, a vehicle-solvent which will evaporate such that the bonding material cures by vehicle-solvent release, and a wetting agent. The material may also contain conductive materials which are suitable for the conditions of intended use and may also be enriched in B.sup.11 to avoid the adverse effects of B.sup.10 when subjected to radiation.

Abstract: Locating a tacky polymer-coated steel sheet on a magnetic rubber-covered glass support by sliding the support out from under a shield and carrying the steel sheet with the magnetic support gradually to place the sheet on the support.

Abstract: A process is disclosed for the joining of lines of acetalyzed polyvinyl alcohol foam with each other or with textile fabrics. The process is characterized by the fact that the parts of the lines to be joined together are brought into contact with each other and hot pressed, in the presence of moisture at tool temperatures of from 100.degree. to 300.degree. C. and a pressure of 1-10 kp/cm.sup.2. The process is further characterized by the fact that the line of acetalyzed polyvinyl alcohol foam is saturated with water to its swelling limit, and by the application of the process to a line of formaldehyde-acetalyzed polyvinyl alcohol foam, of which the degree of acetalyzation amounts to about 20% by weight.

Abstract: An adhesion assistant or binder composition for bonding polyolefin surfaces with metal surfaces comprising an aqueous dispersion of an ethylene/vinyl acetate copolymer from 0.5 to 5 parts by weight based on 100 parts of the copolymer of a cross-linking peroxide compound and from 1 to 10 parts by weight based on 100 parts of the copolymer of a low-molecular-weight 1,2-polybutadiene; as well as a process for producing composite bodies by heat and pressure utilizing the above adhesion assistant between polyolefin surfaces and metal surfaces.

Abstract: A method for forming a strong bond between a substrate and a solid thermoplastic polymer which comprises melting a thermoplastic polymer having an effective open time (a period after melting the polymer during which it remains aggressively tacky and bondable below the melting temperature), cooling it below the melting temperature, contacting the open polymer with a substrate and allowing the polymer to revert to its non-bondable, solid state. Also disclosed are a class of copolyesters suitable for use in the method and certain novel articles adapted for carrying out the method.

Abstract: The primer compositions consist essentially of a mercapto-containing organosilane or organopolysiloxane as one component and a titanic acid ester as the other. They are suitable for adhesively bonding a room-temperature-curing silicone rubber elastomer irrespective of its crosslinking mechanism to various substrates. The bond obtained by use of the primer composition is very strong and highly resistant to water or sea water even on prolonged immersion at high temperatures.

Abstract: A process for producing a thin metal structure with a self-supporting frame, such as a grid, characterized by forming a galvanic resistant coating on a first surface of a carrier member with the coating exposing portions of the first surface adjacent the end of the carrier member and portions of the first surface in the configuration of the metal structure to be formed, depositing a layer of metal on the exposed portion of the first surface, removing the galvanic resistant coating, applying an etch resistant coating on the edges of thecarrier member and at least a portion of a second surface adjacent the edges of the carrier member and then selectively etching the carrier member to remove the carrier member except for that portion protected by the etch resistant coating to form the thin metal structure mounted on a self-supporting frame. The carrier member may either be a single member or a multi-layer member which has a metal coating forming the first surface.

Abstract: In preparing a dry, laminating impregnated paper or cloth by impregnating a paper or cloth with a resin solution containing a polymerization catalyst, a cross-linking monomer and, if necessary, a releasing agent, followed by drying, the use as the resin of a resin composition consisting of (A) 10 to 90 % by weight of an organic solvent-soluble diallyl phthalate prepolymer having an average molecular weight of 2,000 to 20,000 and a softening point of 70.degree. to 140.degree. C. which prepolymer has been obtained by partially polymerizing a diallyl phthalate monomer and separating and purifying the resulting prepolymer, and 90 to 10 % by weight, in total, of (B) an organic solvent-soluble non-crystalline unsaturated polyester and (C) an organic solvent-soluble benzoguanamine resin obtained by condensing in an alkaline reaction system 1 mole of benzoguanamine with 1 to 4 moles of formaldehyde, the weight ratio of (C)/(B) being up to 0.

Abstract: Poly-sulphonyloxyurethanes of the formulaA[O--CO--NH--O--SO.sub.2 --R].sub.n (1)wherein A is a linking group to which the oxygen atoms are attached at alkyl, cycloalkyl or aryl carbon atoms, n is an integer of value at least 2, and each R which may be the same or different, is an optionally substituted alkyl or aryl group, and their salts, especially salts with cations based on tertiary amines, are useful cross-linking or chain-extending agents for natural or synthetic polymers, or may be used as adhesives for binding these materials to each other or to metal substrates.

Abstract: A material which has two reactive groups, one of which is reactive with the irst of two dissimilar polymeric materials but not the second and the other of which is reactive with the second but not the first, is utilized to bind layers of the two polymeric materials together. The groups that are reactive with the first polymeric material are reacted with it as a layer of that material cures. Then a layer of the uncured second polymeric material is placed on the first and the groups that are reactive with it are reacted with it as it cures.

Abstract: A two part adhesive composition characterized by rapid curing and long shelf life is disclosed. The adhesive composition comprises a first component of an acrylic monomer and saccharin or copper saccharinate and a second component comprising a p-toluenesulfinic acid salt which functions as an activator therefor.

Abstract: The invention relates to adhesive compositions comprising vinyl containing organopolysiloxanes, organopolysiloxanes having Si-bonded hydrogen atoms and catalysts which promote the addition of the Si-bonded hydrogen atoms to the vinyl groups.These adhesives may be combined with other electrically conductive materials and used in connecting flexible heating resistors to electrodes.

Abstract: This disclosure relates to methods of producing thin layers of silicon as well as thin layers of silicon on insulating substrates such as silicon dioxide or polycrystalline silicon by forming either an n- layer of single crystal silicon over a p++ layer of single crystal silicon or a p- layer of single crystal silicon over an n++ layer of single crystal silicon and then removing either the n++ or p++ single crystal substrate, as the case may be, by utilizing an etch which will only etch the n++ or p++ region and will stop when the n- or p- region, as the case may be, has been reached.

Abstract: Bonded textile sheet materials having improved water vapor absorbency can be manufactured by bonding the sheets with polymeric binders and additionally impregnating these sheets with glycidyl ethers, chlorohydrin compounds corresponding thereto and/or reaction products of the chlorohydrin compounds with compounds containing NH groups, and drying the impregnated sheets at elevated temperatures and at the same time fixing the impregnants by means of compounds containing NH groups.

Abstract: A memory device and method is disclosed wherein positions of ions associated with a film are varied locally with respect to the film's surface by an electric field. A writing and erasing field is created by voltage modulating the film's conducting substrate in synchronization with low intensity electron bombardment of a local area of the film's surface by a scanning electron beam.The ion's position in the film varies the film's surface potential and alters the angular distribution imparted by its surface to primary diffracted and secondary emitted electrons. In the invention's read mode a scanning electron beam, combined with a detector discriminator, analyzes these emitted electrons to determine the surface potential at each address on the film thus reading out data stored in the film. A second means of reading out stored information utilizing detection of low energy electrons selectively diffracted by ions near the film's surface is disclosed.