Abstract: Improved melt blending process for preparing block copolymer of poly(4,7-dioxadecamethylene adipamide)-polycaprolactam, which is also known as N-30203-6//6, involves continuing the melt blending until the polymer is characterized in that the maximum amount of the block copolymer recovered from an aqueous formic acid solution containing the dissolved block copolymer exceeds about 90%. Fiber prepared from such a characterized block copolymer does not fuse when scoured in boiling water.

Abstract: Process for preparing block copolymer involves dry blending salt of a prepolyamide, e.g. a 30203-6 salt, and particules of melt-spinnable polyamide. Blend is heated to a temperature in the range of between from the melting point of higher melting component to below amide-interchange temperature of a blend of the melt-spinnable polyamide and the homopolymer which would result from the polymerization of the salt. Heating and mixing are continued until substantially all of the salt and the polyamide are converted into a block copolymer. The latter can be used to make fibers.

Abstract: Improved low smoking composition and method for cold forming metal parts is disclosed. The composition contains water, block copolymer of ethylene oxide and polypropylene oxide and which copolymer has a molecular weight of from about 1800 to about 2900, a sulfo-chlorinated fatty acid, potassium hydroxide and a compound having the following structure: ##STR1## wherein R is a C.sub.10 -C.sub.20 aliphatic group and the total of z, x and y are such that the compound is water soluble. The composition also has utility as a lubricant for plain bearings and ways.

Abstract: Process for forming block copolymer involves mixing dry salt of a prepolyamide and a molten melt-spinnable polyamide. Mixture is heated to a temperature in the range of between from the melting point of higher melting component of the mixture to below amide-interchange temperature of a blend of the melt-spinnable polyamide and the homopolymer which would result from the polymerization of the salt. Mixing and heating is continued until substantially all of the salt and the polyamide are converted into a block copolymer. The latter can be used to make fibers. One example of a suitable salt is a 30203-6 salt.

Abstract: Ionic hydrogenolysis of Binor-S, a C.sub.14 heptacyclic saturated hydrocarbon, yields a low melting point product containing predominantly hexacyclics and lesser amounts of pentacyclics. Hydrogenolysis occurs at about 50.degree.-200.degree. C and at about 100-10,000 p.s.i.g. in the presence of a palladium-on-carbon catalyst, palladium-on-alumina or Raney nickel and is promoted by a hydrogen halide or its equivalent. Resulting product has utility as a high energy fuel.

Abstract: A metalworking liquid having utility as a recycleable general purpose cutting and grinding coolant contains a major amount of aqueous solution of a block copolymer of ethylene oxide and propylene oxide and having a molecular weight of about 1800-2900, and an amount of both an alkanolamine cinnamate and a boron amine complex effective to inhibit corrosion. Also the liquid generally contains a germicide, an anti-foaming agent and a pH control agent. At an elevated temperature said liquid undergoes a phase separation in which most of the foregoing materials do not remain in the contaminated water which then can be discarded. The remaining mixture can be diluted with clean water and reused.

Abstract: Binor-S is prepared by the dimerization of norbornadiene (bicyclo[2.2.1]hepta-2,5-diene) at an excellent conversion and an excellent selectivity using an effective amount of a two component catalytic system of tris(triphenylphosphine)rhodium chloride and diethylaluminum chloride or ethylaluminum dichloride or aluminum ethylsesquichloride. The range of mole ratio of norbornadiene to tris(triphenylphosphine)rhodium chloride is between from about 100 to about 1000 and the range of mole ratio of one of the aluminum chlorides to the rhodium chloride is between from about 0.5 to about 100. The reaction rate is rapid. Binor-S can be used as precursor for hydrocarbons having utility for either jet or rocket propulsion.

Abstract: Synthetic paper pulp is prepared by extruding a foam sheet of a synthetic thermoplastic fiber forming resin, which resin contains from 0.1 to 5.0 wt. % and preferably from 1 to 2 wt. % of a soap such as aluminum stearate, attenuating the foam sheet as it is extruded and applying either heat or a shearing action to the attenuated sheet to cause it to break down into short fibers containing numerous fibrils. This pulp is then either used directly or blended with natural pulp, wet laid to form a coarse paper and then formed into a final paper product by application of heat and pressure. The soap serves to improve the wettability of the resulting fibers.

Abstract: A blasting composition comprising a mixture of inorganic nitrate and a sensitizer containing at least 30 weight percent of an alkyl ether of Binor-S has substantially more explosive force than an equal volumetric amount of a mixture of ammonium nitrate and diesel fuel. The latter is used in large quantities as a commercial explosive. The sensitizer containing the ether is a liquid having a low pour point, high density and high net volumetric heat of combustion compared to diesel fuel.

Abstract: A blasting composition comprising a mixture of inorganic nitrate, e.g., ammonium nitrate, and a high density hydrocarbon liquid has substantially more explosive force than an equal volumetric amount of a mixture of ammonium nitrate and diesel fuel. The latter is a commercial explosive currently used in large quantities. A high density hydrocarbon liquid is one having a density .gtoreq. 0.910; net heating value .gtoreq. 135,000 BTU/gal., and a pour point .ltoreq. -30.degree. F. Examples of such hydrocarbons include exo-tetrahydrodicyclopentadiene or a mixture of C.sub.14 H.sub.18 hexacyclic dimers of norbornadiene. Also disclosed is an improved method of blasting.

Abstract: An agricultural spray oil composition comprising a major amount of a petroleum hydrocarbon oil having an unsulfonated residue of at least 75 and a viscosity at 100.degree. F. in the range of 60 to 350, and a minor amount of a vegetable oil. The spray oil composition provides a particularly improved carrier which enhances the effectiveness of selective herbicides.

Abstract: Improved method of coldworking a metal workpiece involves using a low smoking lubricating composition containing certain amounts of water, potassium nitrite, potassium soap of a sulfurized fatty acid, glycerine, defoaming agent and a block copolymer of ethylene oxide grafted on a polypropylene oxide which copolymer has both a molecular weight range and contains an amount of ethylene oxide content sufficient to cause the composition to remain homogeneous between ambient temperature and the composition's boiling temperature.

Abstract: A novel solid polyamide polymer is prepared by the condensation of an alkyladamantane diamine of the structure: ##SPC1##Wherein each of R.sub.1 and R.sub.2 is an alkyl radical having 1-10 carbon atoms and a cyclic hydrocarbon diacid having the following structure, HCOORCOOH wherein R is an arylene or alkyl substituted arylene, or an alicyclic hydrocarbon or an alkyl substituted alicyclic hydrocarbon. The solid polymer is useful in forming films, transparent molded articles, and other similar thermoplastic products.

Abstract: A low smoke point (e.g., 29) jet fuel can be used to produce a higher smoke point fuel (e.g., 40+) by blending with an additional more highly paraffinic fuel (e.g., high in C.sub.10 -C.sub.12 normal paraffins) boiling mainly within the fuel oil boiling range (e.g., 10% point of at least 270.degree.F and 90% point less than 540.degree.F). A preferred group of paraffinic fuels comprises n-decane, n-dodecane and mixtures thereof. Hydrogenated butylene and/or propylene polymers (e.g., trimer, tetramer), preferably hydrogenated propylene "tetramer" boiling mainly above 350.degree.F (e.g., 10% point of 360.degree.F), can also be used as additional components. The preferred 29+ smoke point fuel for blending with n-dodecane is obtained by a two stage hydrogenation of a paraffinic straight run kerosene having an API gravity of at least 42, and containing 12 to 16 weight percent aromatics and at least 45 weight percent paraffins. The blended fuel also can have a desirably low freeze point.

Abstract: A low smoking lubricating composition for cold forming metal contains certain amounts of water, potassium nitrite, potassium soap of a chlorinated fatty acid, potassium soap of a sulfurized fatty acid, glycerine, defoaming agent and a block copolymer of ethylene oxide grafted on a polypropylene oxide which copolymer has a suitable molecular weight range and contains a sufficient amount of ethylene oxide to cause the composition to remain homogeneous between ambient temperature and the composition's boiling temperature.

Abstract: This invention relates to novel liquid tertiary diamides having the following structural formula: ##EQU1## wherein n = 0 - 10 R = --(CH.sub.2).sub.m --CH.sub.3 wherein m = 4 - 12One such diamide is N,N'-2,2,5,5-tetramethylhexamethylene-N,N'-dimethylpelargonamide. The diamides have utility as heat transfer fluids and plasticizers.

Abstract: Suitable pitch is formed into a filament continuously and upward by various means located at the bottom of a vessel containing a hot buoyant liquid. The liquid buoys up the fragile filament as it ascends the vessel from a lower region held at one temperature to an upper region where the temperature is about 450.degree.-700.degree.C. The filament emerges upward out of the liquid to move further through a still higher temperature (>900.degree.C) zone which upon leaving the previously formed pitch is a carbon filament. The liquid can be a blend of suitable molten inorganic salts or a molten inorganic oxide.

Abstract: An improvement to a liquid propellant gun system wherein a hydrocarbon used n conjunction with nitric acid is predominantly the exo form of tetrahydrodicyclopentadiene and/or its methyl or dimethyl or ethyl derivatives or a mixture thereof. Other suitable hydrocarbons are as follows: a mixture of trans-syn-2-methyldecalin and trans-anti-1-methyldecalin, trans-perhydroacenaphthene and perhydrofluorene.

Abstract: Testing apparatus and method for use in evaluating thermal stability of quenching oil wherein a relatively small quantity of the oil contacts a metallic heating element maintained at a temperature between about 1000.degree.-1500.degree.F. The contacting oil comes from a relatively large amount of oil and just prior to contact it is at a temperature lower than the flash point of the oil. Operation is continuous and substantially compresses testing time. Following the testing an oil sample can be chemically tested to determine its degree of degradation which is an indication of its thermal stability.

Abstract: Non-woven fabrics are produced from polyolefin foam fibrillated webs. The webs are treated with an aqueous solution of a small amount of chromic acid in strong sulfuric acid to improve the adhesion thereof when they are laminated under heat and pressure to form a non-woven fabric.