Abstract: Hydrocarbon polymers which have been chloronitrosylated and chlorosulfonated to introduce nitrogen and sulfur containing polar groups into the polymer or composites of chlorosulfonated and chloronitrosylated hydrocarbon polymers may readily be crosslinked with heat forming products having improved physical properties.

Abstract: Segmented electrodes for use in electrolytic filter press cells obviate and reduce the problems of current distributions attributable to poor bipolar electrical connections, and electrode flatness. The electrodes are supported on the electrical boss as well as on the central barrier.

Abstract: The central web of a bipolar electrolytic filter press cell has a plurality of nubs projecting therefrom to support the electrode and to maintain their flatness.

Abstract: Organic polymers are crosslinked with polyfunctional chloronitroso containing compounds.

Abstract: 1. A solid polyurethane propellant binder composition which comprises a polyurethane composition comprising the reaction product of nitrocellulose plasticized with a plasticizer selected from the group consisting of nitroglycerin and triethyleneglycol dinitrate, an aromatic diisocyanate and a polyol having a molecular weight of about 500 to 3,000 selected from the group consisting of dicarboxylic acid-polyol-polyesters and polyoxyalkylene ethers, and mixtures thereof, wherein said plasticizer is present in the proportion of about 40 to 60 parts by weight per 100 parts by weight of binder composition, wherein said nitrocellulose contains about 11.0 to 13.0% nitrogen and is present in the proportion of about 0.7 to 1.0 part per part of said polyol, and wherein said diisocyanate is present in an amount to provide an NCO/OH ratio of said diisocyanate to said polyol of about 1.2/1 to 3.0/1.

Abstract: A method for the preparation of a liquid concentrate solution containing 10 to 60 percent by weight water from which a metal cleaning solution may be prepared by dilution with additional water.The liquid concentrate was prepared from ferrous sulfate, an oxidant, an acid, a fluoride ion source and water. It may optionally contain ammonia and urea.

Abstract: Improved drycleaning results (when compared on the International Fabricare Institute rating scale of cleaning/greying ratios) are obtained by the addition of up to one ounce per gallon of drycleaning solvent of a 1-hydroxyethyl-2-fatty acid imidazoline and "free" water (water added after an emulsion of water and detergent is formed in the drycleaning bath).

Abstract: Alkali stable surfactants are prepared by the sequential reaction of polyoxyalkylene compounds with high molecular weight alkyl vinyl ether followed by low molecular weight alkyl vinyl ether.

Abstract: In a diaphragm-type electrolytic cell for the production of chlorine and caustic alkali from alkali metal chloride solutions and having a plate type of coated metallic anode there are provided means for attaching the plate and detaching the plate anode from the cell base means without movement or destruction of either the cell base or the non-conductive corrosion resistant liner above the bus bar.

Abstract: Graft copolymer dispersions of improved viscosity and superior particle size distribution are prepared by the in situ polymerization of vinyl monomers in unsaturation-containing polyols in the presence of a free-radical catalyst and certain chain transferring agents at temperatures below 100.degree. C. The dispersions are low viscous liquids which may be advantageously employed in the preparation of polyurethanes.

Abstract: Graft copolymer dispersions of low viscosity and improved particle size distribution are prepared by mixing a free radical catalyst and a vinyl monomer in a static mixer and thereafter adding the catalyst-monomer mix to a polyol. The dispersions are low viscous liquids which may be advantageously employed in the preparation of polyurethanes.

Abstract: By reacting a proper proportion of an alkylene oxide with methylene dianiline (MDA), there is obtained a curing agent or cross-linking agent useful in place of methylene-bis-orthochloro aniline (MOCA) for making polyurethane foams. The invention provides a solution to the problem of finding a substitute for MOCA, which has become suspected as a carcinogen.

Abstract: The use of composite cathodes comprising a metal substrate having thereon a coating of rhenium in electrolytic cells for the electrolysis of aqueous alkali metal halide solutions reduces the cell voltage requirements in comparison to the conventional ferrous metal cathodes traditionally used in such cells.

Abstract: In an electrolytic cell for the production of halogen and caustic from an aqueous alkali metal halide solution containing anode and cathode compartments separated by a diaphragm an improved diaphragm is provided. The diaphragm is a porous sheet material made of a tetrafluoroethylene polymer having a low amorphous content and a micro-structure characterized by nodes interconnected by fibrils having a porosity of about 50 to 90 percent and a very tortuous path of interconnection. The improved diaphragm has an extremely long service life.

Abstract: Rigid cellular foams characterized by carbodiimide linkages are prepared by the catalytic condensation of an organic polyisocyanate in the presence of a catalytically sufficient amount of a carbodiimide catalyst and an exotherm generating reactant which is either (a) an oxazolidine or (b) an enamine. The foams hereof are characterized by excellent flame retardancy, weight retention and low friability.

Abstract: Glycosides are prepared by reacting a monosaccharide or a compound hydrolyzable to a monosaccharide with 3-chloro-1,2-propanediol in the presence of an acid catalyst producing a 2-hydroxy-3-chloropropyl glycoside. The glycoside is then reacted with a base and an amine having at least one alkyl group that contains 8 to 30 carbon atoms to produce an alkali soluble surfactant.

Abstract: The process for curing polymers with chloronitroso compounds can be accelerated by incorporating metallic compounds as accelerators.

Abstract: Finely-divided dispersed solids are prepared by polymerizing in the presence of a free radical catalyst and an organic solvent a major amount of an ethylenically unsaturated monomer or mixture of monomers and a minor amount of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, an equivalent weight of from 500 to 10,000 and containing a polymerizable carbon-to-carbon double bond. The resulting polymeric solids are particularly useful in the preparation of reinforced polymer compositions.

Abstract: Novel polyacetal compounds which are useful as surfactants are prepared by a transacetalization reaction. Polyoxyalkylene polymers are acetal terminated by reaction with alkyl vinyl ether compounds. These blocks are then subjected to a transacetalization reaction resulting in polyacetal compounds.

Abstract: Composites based on polyurethane foams heat sealed to a substrate are prepared from polyurethane foams employing a graft polyol as a component of the foam-forming reaction mixture. The resulting composites possess exceptional bonding strength.