Abstract: There is disclosed an improved method of making chlorinated derivatives of ethylene wherein chlorine-containing by-products are burned in a catalytic combustion reactor to produce primarily a hydrogen halide which is recycled to the chlorinated derivative reaction and the heat of combustion from said reactor is utilized to preheat the materials used in said chlorinated derivative reaction. The catalyst employed is one containing 5% to 20% of UO.sub.3 (uranium trioxide) on 80% to 95% Al.sub.2 O.sub.3, SiO.sub.2 or a combination of Al.sub.2 O.sub.3 and SiO.sub.2 as a support and having a surface area of at least 50 square meters per gram. The catalytic combustion reaction is carried out at temperatures in the range of about 350.degree. C. to about 450.degree. C. to produce a mixture of gases containing essentially hydrogen chloride and being substantially free of elemental chlorine and chlorohydrocarbon compounds, said gases being then mixed with ethylene and reacted to form ethylene dichloride (EDC).

Abstract: A reaction vessel having on the internal surfaces thereof a coating containing, as a primary ingredient, a straight chain or branched polyaromatic amine made by the reaction of any one by itself, except the polyhydric phenols, or more than one, of the compounds selected from polyamino benzenes, polyhydric phenols, aminophenols, alkyl-substituted aminophenols, diphenylamines, and alkyl-substituted diphenylamines, which coating is applied to said surfaces from an organic solvent solution. Also included are the above compounds having a halogen substitution on the ring. Further, there is included the process for coating said internal surfaces whereby polymer build-up on said surfaces is substantially eliminated.

Abstract: This invention relates to a polymerization reaction vessel having a coating on the inner surfaces thereof resulting from applying thereto a coating composition containing, as a primary ingredient, a straight chain or branched polyaromatic amine dissolved in an aqueous alkali metal hydroxide solution. When polymerizing olefinic monomers, such as vinyl halides, vinylidene halides, and vinylidene monomers having at least one terminal CH.sub.2 =C< grouping, and mixtures thereof, in the presence of said coating, polymer build-up on the inner surfaces of the reaction vessel is substantially eliminated. Further, multiple charges or batches of polymer can be made in said internally coated reaction vessel without opening the same between charges thus preventing the escape of unreacted monomer to the atmosphere.

Abstract: Solvent resistant films are obtained from compositions containing a polymer of vinyl chloride, vinylidene chloride or vinyl acetate, and a hydroxyl-containing monomer copolymerizable therewith, and a thermosetting resin of the group of urea-formaldehyde, melamine and isocyanate resins.

Abstract: Strong heat-sealable nonwoven fabrics, textiles, papers and other substrates which have been treated with a polymer latex derived predominantly from polymers of vinyl halides or vinylidene halides which have been overpolymerized with one or more of .alpha.,.beta. -olefinically unsaturated carboxylic acids, olefinically unsaturated amides or their N-alkylol and N-alkoxyalkyl derivatives, and esters of acrylic and methacrylic acids. Copolymers of vinyl halide or vinylidene halide with vinylidene monomers containing a terminal CH.sub.2 =C< group may also be overpolymerized in the same way in making the heat sealable articles.

Abstract: There is disclosed a process for polymerizing olefinic monomers, such as vinyl halides, vinylidene halides and vinylidene monomers having at least one terminal CH.sub.2 =C< grouping, and mixtures thereof whereby polymer build-up on the inner surfaces of the reactor is substantially eliminated. The process is carried out in a reaction vessel the inner surfaces of which are coated with a coating composition containing, as a primary ingredient, polyethyleneimine and wherein the polymerization medium in contact with said coated surfaces contains a water-soluble divalent tin salt as a water-phase polymerization inhibitor. The coating and inhibitor produce a synergistic effect.