Abstract: A process for preparing diorganopolysiloxanes containing terminal triorganosiloxy groups which comprises reacting in a 1st step, a cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolyzate with from 0.05 to 3 percent by weight of triorganochlorosilane, based on the weight of the cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolyzate employed in the presence of from 1 to 50 ppm by weight of phosphonitrile chloride, based on the total weight of the organosilicon compounds employed, to form a reaction mixture containing .alpha.-triorganosiloxy-.omega.-chlorodiorganopolysiloxane, and in a 2nd step, adding to the reaction mixture obtained in the 1st step and containing the .alpha.-triorganosiloxy-.omega.-chlorodiorganopolysiloxane, a diorganopolysiloxane having one Si-bonded hydroxyl group in each of the terminal units in an amount of from 1 to 1.

Abstract: Curable compositions containing a reaction product of at least one bisphenol polyglycidyl ether, at least one epoxidized novolak and at least one brominated bisphenol, in combination with a polyphenylene ether and further components including specific catalysts and hardeners, may be used in the preparation of laminates useful as printed circuit boards and having excellent physical and electrical properties.

Abstract: The subject invention relates to foundry binder systems, which are cured with gaseous sulfur dioxide, comprising as separate components:1. a blend of an acrylated epoxy resin and a monoester solvent and;2. an organic solvent; and a blend of an epoxy resin and an aromatic hydrocarbon solvent which is part of component (a), (b), or both.The invention also relates to the use of the foundry binder systems to prepare foundry mixes, foundry shapes, and metal articles.

Abstract: Stabilized composition containing a polymer of vinyl chloride or the like and at least one primary stabilizer and, as the costabilizer, mercaptals or monothioacetals of thioglycolic acid esters of the formula ##STR1## The costabilizers contained in the compositions do not exhibit any unpleasant odor, yet improve the initial color and also the total stability of the molding compositions.

Abstract: Fully imidized polyimidisiloxanes which are based on oxydiphthalic anhydride are soluble in diglyme which gives them particular utility in the micro-electronics industry. The polymers are prepared from oxydiphthalic anhydride, a difunctional siloxane monomer and an organic diamine that provides an assymetrical structure in the polyimidesiloxane polymer chain. The polyimide-siloxane can be prepared with functional groups which render them directly curable. The polyimidesiloxanes can also be prepared with functional groups which when reacted with an unsaturated compound renders the polymers curable. The products of the invention can be used in the form of solutions in the micro-electronic industry. The polymers can also be used in wire and cable coating and to prepare films, fibers, and molded and extruded articles.

Abstract: The present invention relates to a poly(cyanoarylether)based resin composition comprising 100 parts by weight of poly(cyanoarylether) having a repeating unit represented by the formula: ##STR1## (wherein Ar is ##STR2## as a main constitutional component and 0.01 to 3 parts by weight of at least one crystallization nucleating agent selected from the group consisting of talc, mica and carbon black each having a particle diameter of not more than 3 .mu.m.In the composition of the present invention, the rate of crystallization of poly(cyanoarylether) is greatly improved. Thus, the productivity of molding can be increased. Furthermore, the composition of the present invention can provide moldings having excellent heat resistance without annealing.

Abstract: A modified block copolymer composition comprising a thermoplastic polymer and a modified block copolymer consisting essentially of a base block copolymer of a monovinyl substituted aromatic hydrocarbon polymer block and an olefin compound polymer block having an ethylenic unsaturation degree not exceeding 20%, the base block copolymer having a molecular unit containing a carboxylic acid group and/or a group derived therefrom grafted thereto. The modified block copolymer composition of the present invention is a resinous composition excellent in impact resistance, adhesion, paint adhesion, weatherability, resistance to thermal deterioration, transparency and gloss or a rubbery or leather-like composition excellent in heat resistance, abrasion resistance, compression set resistance, adhesion, transparency, oil resistance, weatherability and resistance to heat aging.

Abstract: A binder composition which comprises an aqueous alkaline solution of a phenolic resole resin and an additive wherein the additive is phenoxyethanol or a derivative of phenoxyethanol.

Abstract: A low stress agent which increases the coherence of organic materials and an inorganic filler, decreases the modulus in molded articles which absorb stress and impact energy is prepared by a process which comprises preparing a silane-modified reactive liquid polymer from a silane coupling agent and a reactive liquid polymer containing functional groups or double bonds, treating the surface of an inorganic filler with a silane coupling agent, and reacting said silane modified reactive liquid polymer with said treated inorganic filler. An epoxy resin or phenol resin composition which contains the low stress agent is very suitable for use in encapsulating a semiconductor.

Abstract: Composites comprised of reinforcing fibers in a continuous matrix of poly(biphenylene sulfide) resin and methods of producing such composites are provided. The poly(biphenylene sulfide) resin is produced by reacting 4,4'-difluorobiphenyl with an alkali metal sulfide in a polar organic compound whereby the resin has a high melting point and a high melt viscosity, and the composites formed therefrom have excellent mechanical properties and retention of mechanical properties at high temperatures.

Abstract: A composition for producing a metallic sintered body consisting essentially of a mixture of a powered metal having an average particle size of not more than 50 microns with a lactone resin having a relative viscosity value in the range of from 1.15 to 3.20 is disclosed.The composition has excellent properties such as mechanical strength of a green body thereof, and only a short time being necessary for removal or elimination of binder in comparison with conventional sintering compositions.Furthermore, the binder in the present composition is substantially composed of a single component; accordingly, manufacturing process control can be simplified by use of the lactone resin.Furthermore, a method for producing a metallic sintered body using such composition is also disclosed.

Abstract: Molding compounds comprising aromatic polyamides which contain from 0.001 to 10% by weight of a low molecular weight sulfonic acid amide display low melt viscosities and an increased resistance to hydrolysis and are thermoplastically processible.

Abstract: Epoxide resins which are reinforced with aramid fibers and in which the adhesion between fibers and resin is improved by means of a pretreatment of the fibers with organosilanes.

Abstract: A process for coloring high molecular organic material, which comprises the use of isoindolines of formula I ##STR1## wherein A is a group of formula ##STR2## wherein R is a group selected from --CONHR.sub.1, --COOR.sub.2 and ##STR3## and R.sub.1 is hydrogen, C hd 1-C.sub.4 alkyl, phenyl or phenyl which is substituted by one or more identical or different members of the group consisting of halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, --COR.sub.3, --NHCOR.sub.4 or ##STR4## in which formulae R.sub.3 is C.sub.1 -C.sub.4 alkoxy, --NH.sub.2 or --NHR.sub.4,R.sub.4 is C.sub.1 -C.sub.4 alkyl andR.sub.5 is hydrogen, halogen or C.sub.1 -C.sub.4 alkyl, andR.sub.2 is C.sub.1 -C.sub.4 alkyl and Q is --NH or --S--;or A is a group of formula ##STR5## wherein V is NH or O, X.sub.1 and X.sub.3 are each independently of the other halogen, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylmercapto, or phenoxy or phenylmercapto, each unsubstituted or substituted by halogen, C hd 1-C.sub.4 alkyl or C.sub.1 -C.sub.

Abstract: A process for forming a low smoke, low flame spread composition comprising mixing polybenzimidazole fiber; an inorganic powder filler; and a non-fluorinated phosphazene polymer of the formula ##STR1## where x is an integer from about 20 to about 50,000, Q and Q' are the same or different and are C.sub.1 to C.sub.6 linear or branched alkoxy or substituted or unsubstituted aryloxy and Q" is a group having olefinic unsaturation; and a fluorinate phosphazene polymer of the formula ##STR2## where y is an integer from about 20 to about 50,000 Q.sub.f and Q'.sub.f are the same or different and are --OCH.sub.2 (CF.sub.2).sub.n CF.sub.3 or --OCH.sub.2 (CF.sub.2).sub.n CF.sub.2 H where n is the integer 1 to 20 and Q"' is a group having olefinic unsaturation.

Abstract: New epoxy resin binder compositions which have outstanding pot life but can be cured to form products having excellent physical properties are obtained by mixing the epoxy resin with a new curing agent comprising a reaction product of methylene chloride and monoethanol amine in special proportions. The new binders are particularly suited for use in combination with Portland cement, sand and water to form improved overlay coatings for already form concrete or asphalt surfaces.

Abstract: Polyester films with a good slitting property and good slipping property contain, in first and second embodiments, at least 0.005% by weight of calcium carbonate particles. The particle size S.sub.c of the polyester crystals, crystal face orientation index X.sub.i and the difference .DELTA.n between the refractive indices in the machine direction and in the transverse direction of the polyester film have a specific relationship, or the internal haze H, face orientation coefficient f.sub.n or the difference .DELTA.n between the refractive indices in the machine direction and in the transverse direction have a specific relationship. By satisfying the specific relationship, a good slitting property and good slipping property are obtained. A third embodiment provides a polyester film containing at least 0.005% by weight of calcium carbonate particles, which has a specific center line average roughness Ra, face orientation coefficient f.sub.n, the difference .DELTA.

Abstract: The invention relates to thermoplastic polycarbonate molding compositions which are rendered resistant to gamma-radiation by incorporating therewith about 0.1 to about 10 percent by weight of a stabilizing agent conforming to ##STR1## wherein R.sub.1 denotes a hydrogen atom or a C.sub.1 -C.sub.4 alkyl, R.sub.2 denotes a hydrogen atom, a C.sub.1 -C.sub.30 alkyl or acyl radical, silyl or pyranyl where said alkyl and acyl radicals may be either branched or linear, n is an integer of from 0 to 70, p is 0 or 1 and m is 1 to 4.

Abstract: The resin composition which contains thermosetting resin as Component (A), a thermoplastic resin as Component (B), and at least one compound selected from the group consisting of an epoxy resin capable of dissolving the thermoplastic resin and a reactive diluent possessing at least one epoxy group as Component (C) in a ratio such that the proportions of Components (A), (B), and (C) fall respectively in the ranges of 30 to 96% by weight, 2 to 50% by weight, and 2 to 49% by weight, based on the total weight of the resin composition. The resin composition is capable of producing a molded article combining the highly satisfactory mechanical and thermal properties of a thermosetting resin and the highly satisfactory toughness of a thermoplastic resin.

Abstract: Flame sprayable coating compositions are prepared from (A) a melt blended, pre-reacted component comprising (1) from about 75 to about 98 percent by weight of at least one solid epoxy resin having a degree of polymerization of from about 0 to about 7; and (2) from about 5 to about 15 percent by weight of at least one olefinic polymer containing from about 0.1 to about 55 percent by weight of a group reactive with vicinal epoxy groups; (B) a melt blended, pre-reacted component comprising (3) from about 10 to about 60 percent by weight of at least one solid epoxy resin having a degree of polymerization of from about 1 to about 6; and (4) from about 40 to about 90 percent by weight of at least one olefinic polymer containing from about 0.