PURPOSE:To enhance mechanical strength of a plate of battery by providing a treated layer of the mixed liquid consisting of glycerine or glycol or diluted liquid of them and lead powder on the surface of unformed plate. CONSTITUTION:A paste is formed by gradually adding dilute sulfuric acid to lead powder and by kneading them. A plate obtained by filling this paste into an ordinary plate lattice o...

PURPOSE:To easily form a surface protection film on a member to be coated by a method wherein a composite sheet comprising a substrate having a radiation-setting adhesive layer applied thereon is adhered on the coated member, radiation is projected to harden the adhesive layer and then only the substrate is separated for removal. CONSTITUTION:A composition consisting of (A) a radiation sensitive c...

An apparatus and method for testing and verifying the timing logic of a cathode ray tube display in a data processing system. Apparatus associated with the CRT tests and verifies the vertical and horizontal synchronization and the logic associated with the character generator by counting the occurrences of a selected signal having a preestablished rate within a predetermined number of occurences o...

PURPOSE:To prevent shrinkage with age, and to improve the dimensional stability of the rubber foamed body with open cells by kneading a cross-linking agent, other compounding agents and a volatile foaming agent of the low boiling point to a rubber raw material, filling a molding die with the mixture and heating and foaming the mixture. CONSTITUTION:Either of a natural rubber raw material or a synt...

Substantially non-crosslinked pre-foamed particles of a polypropylene resin, characterized by the fact that they are composed of an ethylene/propylene random copolymer or a mixture of an ethylene/propylene random copolymer with low density polyethylene and/or an ethylene/vinyl acetate copolymer as a base resin; and a process for producing pre-foamed particles of a polypropylene resin, which compri...

The non-flammable rigid foam e.g. used as a building material complies with the requirements of DIN 4102 and which provides a non-toxicity of the combustion fumes according to DIN 53436. It has a mass ratio of resin component:filler of at least 1:2,5 and a bulk density amounting to 50 kg/m3 to 450 kg/m3. The resin component is formed by reaction of 50-62 mass parts resolic resin, 0-15 mass parts f...

A method for the manufacture of a moisture-absorbing, two-sheet product comprising one sheet of a material penetrable to moisture and air, and exposing depressions distributed in a certain pattern and forming cavities between the sheets, the cavities containing a highly absorbing material 3 in comminuted form, by a web 1 of material for the first sheet being carried over a roller 5 with depression...

Polyfluorocarbon resin or polychlorofluorocarbon resin, especially polytetrafluoroethylene in powder form is added to a conventional inert inorganic finely divided filler for dental restorative composite compositions, in combination with conventional liquid polymerizable binder systems to provide a composite composition possessing improved mechanical properties, especially wear or abrasion resista...

A process for preparing fiber-reinforced hydraulic composite material having a high mechanical resistance and durability is characterised by treating the hydraulic binder with compounds in solution (for example, carbonates and bicarbonates of ammonia or of alkaline and alkaline earth metals) at variable concentrations from 0.5 to 20 percent by weight and at different treating temperatures in the r...

The invention is a method of combining chemical reagents and comprises the steps of: 1) Dispensing the reagents into a conduit system in the form of discrete volumes or droplets separated from each other by an inert immiscible liquid, and 2) Moving the inert liquid and discrete droplets in such a manner that predetermined discrete volumes coalesce with each other, thereby combining the reagents....

PURPOSE:To prevent a Pd decreasing phenomenon in Ag-PD conductor from occuring by a method wherein a reaction layer of silver and tin is formed on a conductor before soldering operation is started. CONSTITUTION:Sn alloy foil and particles with much Sn content is placed on an Ag-Pd conductor 2 inside dams 3 on the surface of the Ag-Pd conductor 2 on a package 1 and then they are heated and melted t...

A ferrous sulphate hydrate product for use as chromate reducing agent for dry cement is made from a technical or commercial grade ferrous sulphate heptahydrate by one or more treatments selected from moderate drying, powder dilution, physical absorption, and chemical absorption. In particular, the technical grade ferrous sulphate heptahydrate is mixed with fly ash or gypsum and subjected to a mode...

A continuous method of press forming a sheet resin, which is capable of subjecting to a consecutive process the steps of extruding a molten resin, forming the molten resin into a sheet resin strip, cutting the sheet resin strip into sheet resin pieces and press forming the sheet resin pieces. These steps are continuously carried out synchronously with one another by means of synchronizing devices,...