Abstract: An aqueous liquid detergent composition containing a nonionic surfactant, a builder, a particular hydroxypropyl methylcellulose ether and optionally an anionic surfactant is disclosed having unusual stability, especially at low temperatures. The hydroxypropyl methylcellulose is characterized as having 28-30% methoxyl and 7-12% hydroxypropyl substitution with molecular weight from 5-250 cps nominal viscosity in 2% aqueous solution at 68.degree. F.

Abstract: Disclosed is an improved implement comprising a cemented carbide supported composite abrasive compact which is brazed to a cemented carbide substrate with a brazing filler metal having a liquidus substantially above 700.degree. C. The composite compact preferably is a composite polycrystalline diamond compact. The brazing filler metal is a brazing alloy having a liquidus not substantially above 1,004.degree. C. and which has the following composition, by weight:Au: 18-39.5%Ni: 3.5-14.5%Pd: 2.5-10.5%Mn: 7.5-9.0%Cu: Balance.

Abstract: There is described a process and apparatus for flaring the end of a thermoplastic tube to form a flange thereon to provide a flanged adapter for joining sections of plastic pipes. An end portion of a tube of suitable thermoplastic resin is heated to soften it and is then placed in a flanged sleeve with the heated tube end projecting from the sleeve. A flanged male plug is inserted into the heated end of the tube and the plug is pushed by means of a press into the tube to cause the flanged plug to flare the heated end of the tube outwardly through an obtuse angle against the flange of the sleeve so that a flange is formed on the tube. A cylindrical member embraces the flanges of plug and sleeve and limits outer flow of the formed tube flange. The tube is then cooled in situ in the press, is removed from the press after cooling and placed in a cold water tank for further cooling. After cooling, the flanged tube is constrained between top and bottom clamping disks and is reheated to about 160.degree. F.

Abstract: The high pressure/high temperature (HP/HT) process for making diamond or CBN compacts has been modified by placing partitions within the crystal mass before HP/HT processing. With reference to FIG. 3, within the shield metal sleeve 11 and shield metal cup 14 are placed pliable metal shapes 20 in a honeycomb pattern. The abrasive crystals within the tubes 18 and outside the tubes 26 is sintered, and a compact containing the tubes embedded therein results. This compact can be acid leached to give a plurality of small compacts which need little if any additional shaping. The partitions can also be left intact as chip arresters.

Abstract: The invention is a coated abrasive grinding disk for mounting in the chuck of a drill or the like wherein the grinding pad is of a thermoplastic material having a layer of abrasive material bonded thereto with a layer of thermosetting plastics material.

Abstract: A composite grinding wheel comprising a support center with a peripheral groove containing a ring of metal bonded abrasive bonded thereto is made by placing in the bottom of an annular mold cavity, a ring whose internal bore is larger than and spaced from the inner smaller diameter of the mold cavity. The mold cavity above the ring is then filled with a sufficient volume of a mixture of metal bond and abrasive particles and closed off by an annular support center supported by the mold and having a central hub portion of smaller diameter than the internal bore in the ring and an axial height extending upwardly to an upper outer flange extending radially over the top of the mold cavity. The support center and ring are pressed together thereby compacting the mixture of metal bond and abrasive particles together between the upper outer flange and ring until the central hub extends into the ring and is substantially aligned with the bottom of the mold cavity and side of the ring.

Abstract: A method and apparatus for making a polymeric coated layer is provided, the method comprising the steps of providing a strand layer with the strands thereof disposed in a predetermined pattern, forming the strand layer to comprise a first substantially planar layer of strands disposed in superimposed relation with a second substantially planar layer of strands whereby the strands of the first layer are not woven with the strands of the second layer, disposing a liquid polymeric coating on the strand layer while the strands thereof are disposed in the pattern thereof, doctoring the coating, stretching the strand layer in one direction after the step of disposing the coating thereon, and drying the coating with a heating unit to at least a degree thereof that will hold the strands of the strand layer in substantially the pattern thereof whereby the coating effectively is the sole securement securing the strands of the first layer to the strands of the second layer and thereby imparts its flexible characteristic

Abstract: Disclosed is an improvement in method for both dry grinding and wet grinding a workpiece selected from cemented tungsten carbide and combinations of cemented tungsten carbide and steel with a single resin bonded grinding element having metal-coated diamond particles embedded in the grinding surface thereof. Such improved method comprises providing coated diamond particles useful for both dry grinding and wet grinding operations which comprises diamond coated particles coated with two layers of metal, the inner layer consisting of between about 40% and 130% by weight of said diamond particle of nickel and the outer layer consisting of between about 20% and 70% by weight of said diamond particle of silver, wherein the total weight of both said silver and nickel coatings does not exceed above about 200% by weight of the uncoated diamond particle.

Abstract: There is provided a sintered angular shape granular sandblasting material obtained by the calcination of asbestos tailings at a temperature of from 1300.degree. C. to 1450.degree. C., said asbestos tailings being characterized by having a MgO:SiO.sub.2 ratio lower than 1.0, the granular sandblasting material being characterized by a cold compression mechanical strength of from 10 to 160 MPa, by a granulometry of -40 to +150 mesh (Tyler), and by being substantially free of dust.

Abstract: Carbon electrodes are impregnated with pitch during transport in mobile vessels which first travel to a heating station where the electrodes are heated in several stages by gases which are hotter from stage to stage. The vessels next travels to a station where the sealed vessels are connected with a suction pump to evacuate the fluid from their interiors and from the pores of the electrodes therein and where the vessels are substantially filled with pitch which is caused to penetrate into the empty pores. The vessels then travel to a station where the contents of the vessels are pressurized to ensure complete permeation of electrodes with pitch. The vessels subsequently travel an optional station where the electrodes in the vessels are baked to convert the pitch into coke, and to one or more cooling stations where the electrodes are heated by air, water and/or nitrogen.

Abstract: D-Limonene-based aqueous cleaning compositions for hard and/or flexible substrates are provided wherein the normally water-immiscible d-limonene is stabilized in clear aqueous solution by the combined effect of carefully selected and proportioned surface active agents, and a coupling agent, suitably in the form of a glycol or a lower alkyl glycol ether. One or more surfactants can be employed with a glycol or glycol ether as the coupling agent. Preferred formulations contain selected anionic, nonionic, or mixed anionic-nonionic surfactants. The compositions can also contain small amounts of additives adapting the compositions to particular uses. The new cleaning compositions contain by weight, 78 to 96 parts of a d-limonene/surfactant/water mixture containing 10-60% d-limonene, 10-30% surfactant, and 20-70% water, coupling agent in the amount of 2-10 parts by weight, and 2-12 parts of additives adapting the compositions to particular uses.

Abstract: An arrangement for stamping an outer surface of a synthetic thermoplastic bar material in thermoplastic condition has a guiding element for a bar material, a rotary stamping tool with a working surface shaped in correspondence with a desired pattern to be stamped and rolling over the bar material, and a negative pressure element located in the region of the stamping tool and arranged for attracting the bar material against the working surface of the stamping tool.

Abstract: A method for granulating a cationic surfactant having good water dispersibility and good storage stability comprising the steps of:(i) mixing 100 parts by weight of a powdered di (long-chain alkyl) quaternary ammonium salt having an average particle diameter of 150 .mu.m or less with 10 to 30 parts by weight of finely divided silica having an average primary particle diameter of 0.1 .mu.m or less;(ii) adding 20 to 80 parts by weight of a self-adhesive substance to the resultant mixture in the step (i), followed by granulation; and(iii) adding 30 to 150 parts by weight of at least one member selected from the group consisting of finely divided zeolite having an average primary particle diameter of 0.1 to 10 .mu.m, finely divided calcium carbonate having an average primary particle diameter of 0.01 to 10 .mu.m, and a mixture thereof, followed by granulation.

Abstract: A polypropylene strap for use in packaging articles. The polypropylene strap has a high tensile strength, a low elongation, a high ridigity, a high abrasion resistance, and flexible surfaces, and it is not easily split in the longitudinal direction. This strap has superficial layers stretched at a low draw rate of 1.2-3, and a inner portion stretched at a high draw rate of 10-18. The total thickness of the superficial layers is 5-50% of the total thickness of the strap. The strap is manufactured by stretching a belt-like material, which has been extruded from a die, in the lengthwise direction thereof at a volume ratio of 4-9, heating the surfaces of the resulting belt-like material to put the molecular chains in the superficial layers only thereof in a non-oriented state, and then stretching the belt-like material as a whole at a draw ratio of 1.2-3.

Abstract: A coupling element shaper comprises a pair of parallel externally threaded screw members corotatable in a common direction and disposed on opposite sides of a mandrel along which a core thread is fed while a filamentary material is wound around the mandrel into a row of helically coiled coupling elements. Each screw member has a portion varying in pitch to gradually reduce in a direction from one end to the opposite end thereof. The core thread is squeezed by the coupling elements as shaped by such portion so as to have a certain degree of stretchability which can cancel or take out its shrinkage when the coupling elements are sewn to a slide fastener stringer tape.

Abstract: 2-naphthyl phosphoramidites are readily and inexpensively prepared by the reaction of N-dichlorophosphinoamines with a 2-naphthol in an alkylamine. The 2-naphthyl phosphoramidites are stabilizers for polymers such as the polyolefins and enhance the stabilizing activity of hydroxyphenylalkyleneyl isocyanurates.

Abstract: A series of novel water-dispersible corrosion inhibiting solutions are disclosed which contain a composition which includes the reaction product of an amine mixture and an organic monomer acid mixture. A process for the inhibition of corrosion in aqueous environment is also disclosed. The process is particularly useful for protecting metal surfaces in subterranean petroleum pumping wells.

Abstract: A heated die (10) is divided into four segments slidable with respect to adjacent segments so that when opposing segments (12) and (16) move together and forward, segments (14) and (18) are moving out and back. Thus, friable material may be formed and drawn through die (10) by the action of the die.

Abstract: Use of fine-grained pentaerythritol, dipentaerythritol or a mixture of these compounds as a pore forming additive in porous ceramic products such as ceramic abrasive wheels and ceramic filters.

Abstract: A gang tool assembly for drilling a precise pattern of holes in a workpiece or otherwise cutting surfaces and the like on such workpiece and including a mounting panel of cured settable material having a pattern of holes formed therein to receive supports for powered tool heads to detachably support the same to form a gang pattern of either drills or cutters for simultaneously drilling a pattern of holes in a workpiece or forming a surface thereon. The mounting panel is formed by mounting a pattern of pins upon a base mold plate, surrounding said plate with mold sidewalls, placing sleeves upon said pins, pouring a settable slurry of high fracture strength of uniform thickness around said pins, allowing the material to cure to rigid condition, and removing the molded rigid panel and sleeves in situ therein from said base mold plate and pins to provide a rigid supporting panel for a gang of powered tool heads having supports extending through said sleeves.