Abstract: The Comparative Tracking Index of a flame retardant polyketone blend of polyketone polymer and glass filler is improved by formulating the flame retardant as a mixture of alkaline earth metal hydroxide or carbonate and zinc compound.

Abstract: An accelerator system for the cold crosslinking of polymers which harden on exposure to moisture by hydrolysis/condensation, comprising: (C) x parts by weight of a catalyst for crosslinking the said polymers by polycondensation, x ranging from 0.01 to 10; (E) Y parts by weight of a solid inorganic compound containing an amount y of water in the form of water of hydration and/or water adsorbed by capillary condensation, this amount y ranging from 0.5 to 40 parts by weight, and which can represent up to 70% of the weight of the said solid inorganic compound; (F) z parts by weight of fillers, z ranging from 0 to 50; (D) 100-(x+Y+z) parts by weight of a diluent or of a solvent of the said catalyst (C), the diluent or solvent having a dynamic viscosity at 25.degree. C. of the order of 50 to 200,000 mPa.s; the respective amounts of the four constituents (C), (E), (F) and (D) being such that the system obtained exists in the form of a manipulable paste.

Abstract: A water soluble chemical composition for use as a soil stabilizer, conditer and structuring agent includes a dispersing agent such as a polyanionic sulfonated urea-melamine formaldehyde condensate, an aggregating agent such as a non-ionic water soluble urea-formaldehyde condensate having relative weight average molecular weights between 400 to 10,000 and polydispersity between 2.5 to 10, and a basic salt like di-sodium tetra borate and/or a neutral salt like sodium chloride and a nitrogen potassium or phosphorous containing compound such as potassium nitrate, phosphoric acid, potassium dihydrogen orthophosphate and the like, wherein the ratio of urea-formaldehyde to sulfonated urea-melamine-formaldehyde is between 0.2:1 to 2.0:1 and the final solid contents of this composition is between 1-15%. These compositions are then sprayed on top of sand or soil with conventional equipment and will impart significant improvements in their mechanical properties and their erosion resistance to water and wind.

Abstract: Resin-salt plastic or polymeric reaction products are produced by reacting a resin, such as polyvinyl alcohol, with a metal salt, such as sodium chloride, in a reaction medium under agitation and conditions in which the resin does not precipitate or kick out of the reaction medium, but is solubilized in the reaction medium and reacts with the salt. The amount of salt present is at least 2.3 weight percent of the resin and is preferably added to the reaction medium in a single charge. The reaction product is separated from a mother liquor and preferably washed to remove unreacted materials and contaminants. The resin-salt reaction product, the mother liquor, and the wash liquid each have utility in the manufacture of commercially useful products.

Abstract: A processes for producing a (co)polycarbonate having a low terminal hydroxyl group concentration and being excellent in heat resistance and hue, which comprises melt-polycondensing a dihydroxy compound with a carbonic diester in the presence of a catalyst for transesterification selected from the group consisting of a nitrogen-containing basic compound, an alkali metal borate and an alkaline earth metal borate and in the presence of a specific ester compound.

Abstract: A halogen-free resin mixture comprising an epoxy resin, a hardener, a flame retardant as well as additives, a self-extinguishing prepreg composed of this resin mixture as well as its advantageous application, particularly as an insulation material. The halogen-free resin mixture being composed of:a) 20-60 weight % epoxy resin;b) 20-60 weight % phenolic novolak hardener;c) 5-65 weight % zinc borate as flame retardant; andd) 0-30 weight % additives.

Abstract: The invention relates to a material which comprises at least 20% of polyphenylene ether and which comprises as a flame-retardant 0.05-10% by weight of a boron compound, for example, boric acid, B.sub.2 O.sub.3, borate, salts or borate esters related to the polyphenylene ether, as well as optionally a plasticiser and further conventionally used additives.

Abstract: A power coating composition comprises at least one film-forming polymeric material and has dry-blended therewith two or more dry-blended additives selected from solid, particulate, inorganic, water-insoluble materials which may be ceramic or mineral materials and/or may be oxides, mixed oxides, hydrated oxides, hydroxides, oxide-hydroxides or oxysalts of metals and metalloids, at least 95% by volume of the powder coating composition having a particle size not exceeding 50 microns.

Abstract: A method for producing halogen-free, antimony-free and phosphorous-free polyamide fibers is described by incorporating an additive into the polyamide which comprises a vulcanizable mixture of silicones and a catalyst in a thermoplastic matrix. The fibers have improved flame retardancy and are used for the manufacture of carpets.

Abstract: A semiconductor device obtained by encapsulating a semiconductor element with a thermosetting resin composition comprising a thermosetting resin (Component I) and a hardener (Component II) having the following components III and IV incorporated therein. The semiconductor device is thus provided with a high heat resistance at infrared reflow step and a high flame retardance, showing a drastically enhanced reliability.(III) A metal hydroxide represented by the following general formula (1):n(M.sub.a O.sub.b).cH.sub.2 O (1)wherein M represents a metallic element; a, b and c each represents a positive number; and n represents a positive number of 1 or more, with the proviso that when M.sub.a O.sub.b is repeated, the plurality of M's may be the same or different and that a and b may be the same or different; and(IV) a metal oxide represented by the following general formula (2):n'(Q.sub.d O.sub.

Abstract: A method for producing halogen-free, antimony-free and phorphorous-free polyamide fibers is described by incorporating an additive into the polyamide which comprises a vulcanizable mixture of silicones and a catalyst in a thermoplastic matrix. The fibers have improved flame retardancy and are used for the manufacture of carpets.

Abstract: A method for producing halogen-free, antimony-free and phosphorous-free polyamide fibers is described by incorporating an additive into the polyamide which comprises a vulcanizable mixture of silicones and a catalyst in a thermoplastic matrix. The fibers have improved flame retardancy and are used for the manufacture of carpets.

Abstract: This invention relates to an N-vinyl heterocyclic copolymer in substantially pure deionized water or in aqueous alcoholic solution which exhibits significantly reduced color and odor and which is obtained by contacting an alcohol-copolymer mixture with water and a nitrogen containing, trivalent boron complex compound selected from the group of borane-ammonia, borane-lower alkylamine, tetra-lower alkyl ammonium octahydrotriborate, morpholine-borane, lower alkyl morpholine-borane, silylamino borane and mixtures thereof and stripping alcohol from the resulting mixture under vacuum at between about 100 and about 740 mm Hg below absolute whereby an aqueous, 10-70 wt. % solids solution of the copolymer is obtained having a water white color stability of more than a year.

Abstract: A polyarylene sulfide resin composition having an excellent fluidability and a good moldability is disclosed. The resin composition is useful as a material for an optical pick-up part which has a high reliability and a high tenacity and does not generate deviation of an optical axis with changes in environmental conditions such as temperature and humidity. The polyarylene sulfide resin composition comprises, as main components, a polyarylene sulfide resin, a fibrous filler and a particulate filler, and, optionally, a silane coupling agent and an alicyclic hydrocarbon.

Abstract: This invention relates to non-aqueous, indefinitely conformable, halogen free, intumescent putty useful in an opening as a firestop material to deter the spread of fire, smoke, and vapors during a fire.

Abstract: This invention relates to a flame-retardant polyurethane spray system prepared by mixing at an isocyanate index of from 90 to 120(A) an isocyanate composition containing(a) an organic polyisocyanate, and(b) 0 to 50 wt. %, relative to the organic polyisocyanate, of a halogen-containing organic flame retardant; and(B) an isocyanate-reactive composition containing(a) 10 to 80 wt. % of an isocyanate-reactive compound having a molecular weight of 400 to 10,000 and functionality of 2 to 7;(b) 1 to 50 wt. % of an isocyanate-reactive compound having a molecular weight less than 399 and functionality of 2 to 6;(c) 0 to 15 wt. % of an isocyanate-reactive tertiary amine polyether having a molecular weight of 100 to 1000;(d) 5 to 55 wt.

Abstract: A stable, non-aqueous liquid suspension of delayed boron cross-linkers comprises an anhydrous boron compound or a sparingly soluble borate suspended in a mixture of mineral spirits (commonly termed as naphtha) and a resin. Anhydrous boron compounds suitable for suspension include, but are not limited to, anhydrous borax, anhydrous boric acid, or a mixture of both the anhydrous borax and anhydrous boric acid. Sparingly soluble borates suitable for suspension include, but are not limited to, alkaline earth metal borates, alkali metal borates, or a mixture thereof. The mixture between the mineral spirits and resin produces a mineral spirits-resin solution. Alternatively, the mineral spirits may be replaced with a suitable oil which forms an oil-resin solution when mixed with the resin. The oil-resin solution suspends the anhydrous boron compound or the sparingly soluble borate to produce a stable, non-aqueous liquid suspension of delayed boron cross-linkers.

Abstract: A novel plastic composition and method for making the same comprising a host polymer having substantially uniformly distributed therethrough a non-miscible liquid crystal polymer and red amorphous phosphorus. The liquid crystal polymer is present in a concentration sufficient to encapsulate said red amorphous phosphorus such that a substantial portion of the red amorphous phosphorus does not contact the host polymer.

Abstract: A coating composition comprising hydrogen silsesquioxane resin and a phosphor filler diluted in a solvent. These compositions are used to form luminescent coatings on substrates.

Abstract: A copolymeric polycarbonate containing repeating constituent units having formula [I] below and repeating constituent units having formula [II] below in a molar ratio of from 98:2 to 40:60. ##STR1## The above-described copolymeric polycarbonates have excellent resistance to chemicals, heat resistance and flame retardancy without compromising the impact resistance and good hues intrinsic to polycarbonates.

Abstract: A polymer composition for electrical part material comprising, (I) a polymer blend which comprises (A) at least one polymer selected from specific types of polyether imides and polyesters, and (B) at least one polymer selected from specific types of polyphenylene ethers, polyolefins, and polycarbonates, and (II) a copolymer of maleic anhydride and vinyl type compound or (II') an epoxy-modified styrene-type copolymer. The composition has excellent compatibility, heat resistance, mechanical characteristics, platability, moldability, and electric characteristics. It is an ideal material for use as an electrical part material due to its low dielectric constant and low dielectric dissipation factor at high frequency.

Abstract: A cross-linked gel-like composition of matter. The composition is capable of being used as a modeling compound, as well as being moldable, extrudable, stretchable, and being inflated into bubbles for use as a play activity. The composition is based on a cohesive polyvinyl alcohol non-adhesive and substantially non-drying composition that is safe if accidentally ingested and can be washed from fabrics and carpets with water.

Abstract: A polymer composition for electrical part material comprising, (I) a polymer blend which comprises (A) at least one polymer selected from specific types of polyether imides and polyesters, and (B) at least one polymer selected from specific types of polyphenylene ethers, polyolefins, and polycarbonates, and (II) a copolymer of maleic anhydride and vinyl type compound or (II') an epoxy-modified styrene-type copolymer. The composition has excellent compatibility, heat resistance, mechanical characteristics, platability, moldability, and electric characteristics. It is an ideal material for use as an electrical part material due to its low dielectric constant and low dielectric dissipation factor at high frequency.

Abstract: The invention is an aqueous composition for forming fireproof coatings and caulking. The composition is halogen, asbestos and antimony-free. The composition contains 5-20% by weight of a binder resin; 10-60% by weight of a particulate flameproofing agent; 0.2 to 27.5% by weight of non-asbestos inorganic fibers with an average length of 300 micron; 0.1 to 10% by weight of a plasticizer; and water.

Abstract: A method of gelling a guar or derivatized guar polymer solution utilized to perform a hydraulic fracturing operation includes the step of adjusting the pH of the guar or derivatized guar polymer solution to between about 8.5 and 12.5. After adjusting the pH, an anhydrous boron compound or a sparingly soluble borate suspended in a mineral spirits-resin solution or an oil-resin solution is added to the guar or derivatized guar polymer solution. The guar or derivatized guar polymer solution and the anhydrous boron compound or the sparingly soluble borate solution suspended in the mineral spirits-resin solution or the oil-resin solution is then pumped into a subterranean formation under sufficient pressure to cause a fracture in the formation rock.

Abstract: The use of calcium pyroborate to protect plastic materials from microbiological, growth, attack, or degradation, is described. The calcium pyroborate may be modified to reduce its solubility in water and provide longer microbicide effectiveness.

Abstract: The composition of the present invention is a kind of crosslinked, flame-retardant resin composition, which comprises a base polymer of EVA-VC, chlorinated polyethylene, thermal stabilizers, antioxidants, flame-retardant fillers, lubricants and monomers with multifunctional group.The composition essentially comprises 100 weight parts of EVA-VC, 10 to 70 weight parts of chlorinated polyethylene, 40 to 120 weight parts of flame-retardant fillers, and 5 to 20 weight parts of monomer with multifunctional group.In addition, the composition is crosslinked by electron beam to be used as the material for sheath layer of electric wire or cable durable to high voltages.

Abstract: Zinc borate compositions having a ZnO:B.sub.2 O.sub.3 ratio of 4:1. The hydrated zinc borate 4ZnO.B.sub.2 O.sub.3.H.sub.2 O and anhydrous zinc borate 4ZnO.B.sub.2 O.sub.3 are especially useful as fire-retardants and smoke-suppressant additives for polymeric compositions.

Abstract: A process for reducing the pH of anionic polyurethane dispersions which are stabilized by carboxylate or sulfonate groups, which comprises adding a compound which has from one to four ester groups but no acid group or acid halide or anhydride group to the dispersions.

Abstract: Polyamide-based compositions, well suited for molding into a variety of shaped articles useful, e.g., in the electrical and electronics industries, contain an effective flame-retardant amount of red phosphorus and a corrosion/migration-reducing amount of at least one zinc compound selected from among zinc oxide, zinc sulfide and an oxygen-containing zinc salt, e.g., zinc borate.

Abstract: The invention relates to a material which comprises at least 20% of polyphenylene ether and which comprises as a flame-retardant 0.05-10% by weight of a boron compound, for example, boric acid, B.sub.2 O.sub.3, borate, salts or borate esters related to the polyphenylene ether, as well as, optionally, a plasticiser and further conventionally used additives.

Abstract: The film-forming polymeric compositions described include a synthetic, thermoplastic polymer and a starchy material, with a high amylopectin content; they enable the production of films, sheets and the like having good liquid- and gas-barrier effects and improved mechanical properties.

Abstract: There is disclosed a flame retardative polycarbonate resin composition which comprises 100 parts by weight of an aromatic polycarbonate resin (A), 0.01 to 0.5 part by weight of an alkali/or alkaline-earth metal salt of a perfluoroalkanesulfonic acid (B), 0.03 to 5 parts by weight of an organopolysiloxane containing organoxysilyl group bonded to a silicon atom through a divalent hydrocarbon group (C), and optionally 5 to 120 parts by weight of an inorganic filler. The above composition has excellent flame retardancy capable of preventing dripping thereof at the time of combustion of a thin-walled material made from the highly fluidized composition while maintaining the dimensional stability and the mechanical properties such as impact resistance that are inherent in polycarbonate.

Abstract: A flame retardant thermoplastic resin composition which comprises (A) 50 to 90% by weight of a thermoplastic resin which is the base polymer and 50 to 10% by weight of a total of (B) a nitrogen-containing condensed phosphoric acid compound, (C) a comb-like polymer consisting of a polyethylene main chain and a polyoxyalkylene side chain and (D) a metal-containing compound having a carbonization accelerating effect, the amounts of the components (B), (C) and (D) being 5 to 49% by weight, 1 to 15% by weight and 0 to 10% by weight, respectively, in which the total amount of the components (A), (B), (C) and (D) is 100% by weight; a process for producing the composition; a flame-retardant consisting of the components (B), (C) and (D); and a process for producing the flame-retardant.

Abstract: A flame retardant polymer composition comprising at least one polymer selected from the group consisting of a polyamide, polyolefin, polyester, polyacrylic, polystyrene, polyurethane and polycarbonate, a flame retardant effective amount of an additive comprising at least one(a) hexavalent oxygenated sulfur compound and optionally at least one of(b) a char forming agent,(c) a metal compound,(d) a filler or reinforcing agent, and(e) a flow modifier.By excluding halogens and phosphorus beneficial results are achieved without the negative consequences attending their presence.

Abstract: Optical grade polycarbonate resin compositions and methods for their preparation are disclosed. The disclosed compositions are comprised of polycarbonate resins and esters of aliphatic carboxylic acids and alcohols and exhibit good mold release and thermal stability while experiencing little discoloration during molding.

Abstract: In the manufacture of synthetic foams and also especially in that of timber materials using urea-formaldehyde condensate binders, the mol ratio between urea and formaldehyde is decisive for the resultant final rigidity and the presence of free gaseous formaldehyde. In order, with a favourable mol ratio, to reduce the quantity of gaseous formaldehyde remaining in the timber material and at the same time to obtain effective fire resistance in both synthetic foams and timber materials adhesively secured with isocyanate, the invention proposes a combination of effective substances to be added to the initial raw materials as a granulate with a grain size of 80 to 1,500 my.

Abstract: The invention relates to readily processible polyamide molding compounds which have very good mechanical and electrical properties as well as high surface quality and are based on polyamide, magnesium hydroxide and polyhydroxy compounds of the Novolak type.

Abstract: EPM and/or EPDM compositions exhibiting superior green strength as compared to conventional EPM/EPDM compositions are attained by adding, along with the rubber curing agents and various conventional additives as desired, colemanite and/or alumina trihydrate. Colemanite, alumina trihydrate or a mixture of the two have unexpectedly been found to enhance the green strength of EPM/EPDM compositions prior to vulcanization. The green strength promoters of this invention utilized in EPM/EPDM rubber compositions allows for faster mixing (shorter mixing cycles) and improved processing rates, such as faster calender throughput rates, to be achieved.

Abstract: Polycarbonate resin compositions suitable for optical uses and methods for their preparation are disclosed. The disclosed compositions are comprised of polycarbonate resins and .alpha.-olefin oligomers and exhibit good mold release and thermal stability while experiencing little discoloration or molecular weight reduction during molding.

Abstract: The present invention relates to a composition for paste, designed, in particular, to be used as a toy paste, which is obtained by immobilization of an aqueous solution of polyvinyl alcohol with a borax.

Abstract: The impact strength of articles made from a flame-retarded formulated HIPS resin containing an impact modifier is increased by forming a concentrate or masterbatch containing the flame retardant and impact modifier, blending the concentrate with HIPS resin, and extruding the resultant blend.

Abstract: A compactible polybenzimidazole composition contains from about 95 to about 5 weight percent of solid lubricant particles which are uniformly dispersed and encapsulated in from about 55 to about 95 weight percent of polybenzimidazole. The solid lubricant comprises graphite and boron nitride in a weight ratio of about 10:1 to about 1:10. The composition is useful for preparing self lubricating, shaped articles such as bearings, bearing sleeves, rings, seals, etc. which exhibit low friction properties.

Abstract: Stabilization of poly(hydroxy acid)s, particularly poly(lactic acid), to thermal processing with selected boron compounds is disclosed. The most preferred stabilizer is boric oxide (B.sub.2 O.sub.3).

Abstract: A room temperature setting carbonaceous cement comprising a solid carbonaceous material, a catalyst and a liquid carbonizable component, and a boron containing or phosphorus containing material, which when treated with the catalyst will possess increased oxidation resistance at elevated temperatures.

Abstract: A modeling dough comprising gelled poly(vinyl alcohol), water and a filler provides a dough resistant to flaking, cracking, and crumbling. In the disclosed invention, the poly(vinyl alcohol) resin is gelled, thereby providing a water-based resin system that is not sticky yet very ductile. Prior to drying, the dough also exhibits the properties of bounceability and the ability to pick up newsprint. After the dough is air-dried, the poly resin serves to bind the components into a solid, durable product. The filler accounts for a large portion of the volume of the dough, so the overall volume is not greatly affected by water loss upon drying. The dough is water-based and easy to wash from skin, carpets, and other surfaces. Dyes and pigments can be easily incorporated into the formula. The dried product is sandable and paintable.

Abstract: The present invention provides an acetal resin composition comprising:(A) 100 parts by weight of oxymethylene copolymers;(B) 0.05 to 2 parts by weight of hindered phenol type antioxidants; and(C) 0.002 to 0.3 parts by weight of ion adsorbents selected from the group consisting of (i) an ion adsorbent comprising (a) one or more oxides selected from the alkaline metal oxides and the alkaline earth metal oxides and (b) one or more trivalent metallic oxides, and (ii) an ion adsorbent represented by the general formula:M.sub.1 1-X M.sub.2X (OH).sub.2 A.sup.n-.sub.x/n.mH.sub.2 O(1)wherein M.sub.1 is one or more bivalent alkaline earth metal atoms, M.sub.2 is a trivalent metal, A.sup.n- is an anion of valence n, 0<X.ltoreq.0.5, and m is a positive number.

Abstract: Aqueous silicone dispersions crosslinkable into elastomeric state on removal of water therefrom under ambient conditions, well adapted, e.g., for the production of elastomeric silicone seals in the construction industry, include an oil-in-water base emulsion (A) of an .alpha.,.omega.-(dihydroxy)polydiorganosiloxane stabilized with at least one anionic or nonionic surface-active agent, or mixture thereof, (B) an aqueous latex of an organic (co)polymer having a particle size ranging from 0.01 to 0.5 .mu.m and a solids content ranging from 20% to 70% by weight, (C) an effective crosslinking amount of at least one crosslinking agent, (D) an effective amount of at least one nonsiliceous filler material, and (E), optionally, a catalytically effective amount of a metal curing catalyst, such aqueous dispersions further having a solids content of at least 40% by weight.

Abstract: A flame retarded composition for wire insulations that includes a polyethylene blend having a high density polyethylene, in an amount from about 50 to about 95 parts per hundred, and a very low density polyethylene, in an amount from about 5 to about 50 parts per hundred, a primary brominated flame retardant, in an amount from about 30 to about 40 parts per hundred, a secondary chlorinated flame retardant, in an amount from about 5 to about 15 parts per hundred, a first flame retarding synergist, in an amount from about 12 to 20 parts per hundred, a second flame retarding synergist, in an amount from about 7 to about 11 parts per hundred, a first hindered phenolic stabilizer, in an amount from about 0.05 to about 0.30 parts per hundred, and a second hundred phenolic stabilizer, in an amount from about 0 to about 0.30 parts per hundred, a polypropylene polymer in an amount from 2 to 10 parts per hundred.

Abstract: Stabilized aqueous solutions of one or more 3-isothiazolones of the general Formula I or II ##STR1## are given, characterized in that they contain at least 0.1 wt. % taken on the total solution of a 3-isothiazolone, of a hydroperoxide-free organic and/or manganese-free inorganic oxidizing agent, as well as optionally a stabilizer for the oxidizing agent.