Abstract: A plastisol composition which in the fused state exhibits superior abrasion resistance is described. The plastisol composition in addition to the vinyl chloride polymer paste resin and liquid plasticizer contains as a minor constituent a combination of (a) a polybutadiene diepoxide resin or a cycloaliphatic diepoxide resin, (b) an acid anhydride curing agent for the diepoxide resin, and (c) a cure catalyst for the diepoxide resin.

Abstract: A heterogeneous rubber composition having improved flex crack growth resistance and heat buildup is made by blending together separate fractions of chemically similar rubber compounds and ingredients such as carbon black.

Abstract: The present invention pertains to the chlorination of polyvinyl chloride resin particles by exposing said particles of polyvinyl chloride particles while associated with chlorine to high-intensity pulsating actinic radiation.

Abstract: The panel (10) has a rigid foam layer (12) of synthetic organic polymeric foam, a protective weathering layer (14) of thermoplastic sheet material and a generally flexible backer layer (16) of stereoreticulate material interposed between the foam and weathering layers. Interstices (30) of the backer layer (16) adjacent the foam layer (12) are filled with the resin of the foam layer (12) providing a physical bond and a protective substrate (32) for the foam layer. The weathering layer (14) may be adhered to the backer layer (34) by application of heat.

Abstract: Dimethyldioctadecylammonium molybdates having the empirical formula?(CH.sub.3).sub.2 (C.sub.18 H.sub.37).sub.2 N!.sub.a Mo.sub.b O.sub.cwhere a, b and c are (2, 6, 19); (6, 7, 24) or (4, 8, 26) are disclosed as novel amine molybdates which are useful as smoke retardant additives for vinyl chloride polymer compositions.

Abstract: A process is disclosed which permits the photochlorination of poly(vinyl chloride) resin ("PVC"), in an aqueous medium without the use of swelling agents such as are conventionally used. The chlorination reaction proceeds in an aqueous suspension having a high PVC concentration, yet allows the production of essentially uniformly chlorinated poly(vinyl chloride) resin ("CPVC") of excellent quality and uniformity, with a heat distortion temperature ("HDT") of at least 100.degree. C. The transfer of chlorine from the gaseous phase into the aqueous phase, and then into the solid PVC phase, has been accelerated by this process which provides a critical combination of photo-illumination, elevated temperature and elevated pressure in a reactor devoid of oxygen and a swelling agent for the PVC. The "water-chlorination process" of this invention provides a "soak" period, after removal of oxygen from the aqueous PVC suspension, at a soak temperature of about 60.degree. C. to about 75.degree. C.

Abstract: A low density foam product is formed from a chlorinated polyvinyl chloride polymer (CPVC) composition containing a primary blowing agent and a nucleating system comprised of an alkali metal borohydride and a proton donor activator.

Abstract: Didodecyldimethylammonium molybdates having the empirical formula[(CH.sub.3).sub.2 (C.sub.12 H.sub.25).sub.2 N].sub.a Mo.sub.b O.sub.cwhere a, b and c are (2,6,19); (6,7,24) or (4,8,26) are disclosed as novel amine molybdates which are useful as smoke retardant additives for vinyl chloride polymer compositions.

Abstract: Tetrapentylammonium molybdates having the empirical formula[(C.sub.5 H.sub.11).sub.4 N].sub.a Mo.sub.b O.sub.c H.sub.dwhere a, b and c are (2,2,7); (3,5,17); (2,6,19); (6,7,24) or (4,8,26) and d is O or 1 are disclosed as novel amine molybdates which are useful as smoke retardant additives for vinyl chloride polymer compositions.

Abstract: Tri(tridecyl)ammonium molybdates having the empirical formula[(C.sub.13 H.sub.27).sub.3 NH].sub.a Mo.sub.b O.sub.cwhere a, b and c are (2,6,19); (4,8,26) or (6,7,24) are disclosed as novel amine molybdates which are useful as smoke retardant additives for vinyl chloride polymer compositions.

Abstract: Trioctylammonium molybdates having the empirical formula[(C.sub.8 H.sub.17).sub.3 NH].sub.a Mo.sub.b O.sub.cwhere a, b and c are (2, 6, 19); (6, 7, 24) or (4, 8, 26) are disclosed as novel amine molybdates which are useful as smoke retardant additives for vinyl chloride polymer compositions.

Abstract: Amine molybdates are formed by reacting an amine with a molybdenum compound in a reaction mixture comprised of at least two immiscible liquid materials, one of which is an aqueous phase and another of which is a volatile organic solvent in which the amine molybdate to be formed is readily soluble. An inorganic or organic acid desirably is added to the reaction mixture.

Abstract: A bituminous emulsion roof resaturant for application over an existing roof surface to rejuvenate the roof system is provided. The roof resaturant has an oil phase that is comprised of a bitumen and aromatic hydrocarbons. The oil phase is suspended as droplets or discrete particles in a water phase that contains an emulsifier and up to 2.0 parts by weight of glyoxal per 100 parts by weight of water in the water phase.

Abstract: A low density foam product is formed from a chlorinated polyvinyl chloride polymer (CPVC) composition containing a primary blowing agent and a nucleating system comprised of an alkali metal borohydride and a proton donor activator.

Abstract: A process is disclosed for the preparation of chlorinated poly(vinyl chloride), (hereinafter "CPVC" for brevity), in the form of free-flowing macrogranules which are derived from solid free-flowing macrogranules of poly(vinyl chloride), (hereinafter "PVC" for brevity), by causing from about 0.6 to about 3.0 parts by weight (wt) of liquid chlorine which are absorbed perunit wt of solid PVC macrogranules to react with the PVC, without shedding reacted material from the macrogranules. The macrogranules of PVC containing absorbed liquid chlorine held therewithin, are maintained in a wetted but free-flowing, apparently dry reaction mass (due to which the process is referred to as "the relatively dry chlorination" or "the low liquid chlorine" process), in a reaction zone maintained at a temperature in the range from about -50.degree. C. to about 50.degree. C., and a pressure sufficient to maintain the chlorine in its liquid state.

Abstract: The invention pertains to chlorinated vinyl chloride polymer compositions containing, in addition to a chlorinated vinyl chloride polymer, a primary stabilizer for the chlorinated vinyl chloride polymer and a metal salt of phosphoric acid.

Abstract: A process is disclosed for recovering chlorinated poly(vinyl chloride) ("CPVC") which is dissolved in liquid chlorine ("Cl.sub.2 ") to form a CPVC solution. CPVC is recovered by adding the CPVC solution to a halogenated lower alkaline ("HLA"), which is simultaneously an excellent solvent for liquid Cl.sub.2 and a very poor solvent for CPVC. This peculiar property causes the CPVC to be precipitated from the three-component mixture as a finely divided solid with different morphological properties than if the HLA was added to the CPVC solution. The solid CPVC precipitated may then be separated from the solution of liquid Cl.sub.2 in the HLA. This solution of Cl.sub.2 in HLA is further separated into its component liquids, namely HLA and liquid Cl.sub.2 which are then each reused.

Abstract: Polymer compositions are disclosed that contain finely-divided additives of sulfate glasses and sulfate glass-ceramic materials comprised of potassium sulfate and zinc sulfate as smoke retardant additives. Glass sulfates and glass-ceramic materials comprised of potassium sulfate, zinc sulfate and sodium sulfate produce results superior to those obtained using the potassium sulfate-zinc sulfate binary system. The inclusion of a transition metal sulfate as a component of the sulfate glass or sulfate glass-ceramic material also produces superior results over those resulting from use of the potassium sulfate-zinc sulfate binary glasses and glass-ceramic materials.

Abstract: When molding rubber or plastic articles in a closed mold, a film of a liquid coating material having a boiling point above the ambient temperature of the work area and below the temperature at which the molding is to occur is applied to the surface of the mold cavity and/or the surface of the article to be molded just before the mold is closed. The mold cavity then is heated to a temperature above the boiling point of the liquid coating material. The pressure maintaining the mold closed is suddenly reduced exposing vapor release passages between mating surfaces of the mold segments. The liquid coating material at the elevated temperature and reduced pressure within the mold cavity rapidly vaporizes and exhausts through the vapor release passages flushing air entrapped within the mold cavity when the mold was closed from the mold cavity. The mold once again is closed before air can seep back into the mold cavity. Normal molding procedures thereafter are followed.

Abstract: A process is disclosed for photochlorinating poly(vinyl chloride), ("PVC"), suspended in liquid chlorine ("Cl.sub.2 ") which swells the PVC and permits chlorination to occur in a gel phase. PVC starting material is in the form of solid free-flowing macrogranules which are slurried in from about 5 to about 50 times their weight of liquid Cl.sub.2 in a reaction zone maintained at a temperature in the range from about -50.degree. C. to about 50.degree. C., and a pressure sufficient to maintain the chlorine in its liquid state. Since liquid Cl.sub.2 itself swells the PVC to provide a gel phase in which photochlorination occurs, no conventional chlorinated hydrocarbon swelling agents, catalytic materials and the like are necessary. The process may be operated as a batch process, or a continuous process. Typical chlorine content of PVC is about 56.7 percent by weight (% by wt), and the product of chlorination is chlorinated poly(vinyl chloride), ("CPVC"). When formed, this CPVC is dissolved in the liquid Cl.sub.