Abstract: A process for the production of expanded polyurea elastomers which comprises reacting:a) an aliphatic polyetheramine having primary amino functions and essentially no free hydroxyl groups;b) carbon dioxide in the form of carbamate, obtained by reacting carbon dioxide with a portion of the aliphatic polyetheramines;c) a polyisocyanate;d) water; ande) a catalyst having a tertiary amino group;in the presence off) an inert, halogen-free blowing agent.

Abstract: New catalysts are made available for the production of polyurethane and polyepoxide resins being derivates of 2-azabicyclo[2.2.2]hept-5-enes and 2-azabicyclo[2.2.1]heptanes substituted in 2- and optionally in 3-position. Also provided is a process for preparing same by reacting cyclopentadiene with salts of strong acids of ammonia or of primary amines and aldehydes and, optionally, by subsequent catalytic hydrogenation of the reaction product.

Abstract: A process for producing crystalline acrylamidoalkyltrialkylammonium chloride by reacting a substituted acrylamide with methyl chloride in the presence of a reaction medium from the group consisting of acetone, methyl tert butyl ether and cyclohexane is provided.

Abstract: Disclosed is a polyacrylic acid-esters based adhesive copolymer prepared from 85-65 percent by weight of 2-ethylhexylacrylate; O-20-n-butylacrylate; 8-12 acrylonitrile 2-6 acrylic acid; 0.5 to 2 acrylamide and/or 0.5 to 2 hydroxyalkylmethacrylate and from 1 to 2 percent by weight basis copolymer of an external cross linking agent having at least two ClCH.sub.2 CO groups. The adhesive is prepared in the form of aqueous dispersion, having a solids content of about 40 to 60 percent by weight and a viscosity range of about 800 to 1000 cPs.

Abstract: Isobutene is separated from a charge hydrocarbon stream, which may contain butadiene, in two stages in the first of which isobutene is present in excess and in the second of which isobutene is present in deficiency. In the first stage, a strongly acidic ion exchanger is used and in the second stage, an exchanger with a less powerful H.sup.+ loading is used.

Abstract: Cold cross linking polyacrylic acid esters-based dispersion adhesives having a viscosity in the range of 800 to 1000 cps and a solids content of about 40 to 60 weight percent containing a copolymer prepared from 65 to 85 weight percent of 2-ethylhexyl acrylate; 0 to 20 weight percent of n-butylacrylate; 8 to 12 weight percent of acrylonitrile; 2 to 6 weight percent of acrylic acid; 0.5 to 2 weight percent of hydroxylakylmethacrylate; 1.0 to 5 weight percent, basis copolymer, of an internal or external acetoacetic ester cross-linking agent derived from the esterification with C.sub.2 to C.sub.6 diols or 1,1,1-tris(acetoxymethyl) alkanes wherein the alkane group contains from 3 to 7 carbon atoms and optionally, calophonium and other fillers or adhesive additives.

Abstract: Cold cross-linked polyacrylic acid esters-based dispersion adhesives containing:(a) a copolymer prepared from, in wt.% 85-50 2-ethyl-hexylacrylate, 0-35 n-butylacrylate, 8-12 acrylonitrile, 2-6 acrylic acid, 0.5-2 acrylamide and/or 0.5-2 hydroxyalkylmethacrylate and, based on the amount of the aforementioned monomers, from 0.2 to 3.0 percent of 2-(.alpha.-chloro-acetoxy)-alkyl-acrylate or-methacrylate,(b) 1-5 wt.%, based on the weight of copolymer, of a polyaminoamide comprising terminal amino groups, and optionally (c) rosin, fillers, and/or other adhesive additives.The adhesives are prepared in the form of an aqueous dispersion having a solids content of from about 40 to 60 wt.% and a viscosity in the range of from 800 to 1000 cPs.

Abstract: Novel powder coating compositions consisting of resinous polyhydroxyl compounds as film-forming agents, a cross-linking agent, an activator, and conventional additives are described. In contrast to the known powder coating compositions, the activator rather than cross-linking agent is blocked. The novel cross-linking agents employed are bisazlactones. Activators for use in cross-linking reactions are strong acids which are blocked, i.e they are employed in the form of their thermolabile esters or amine salts. The powder coating compositions of this invention are storable and they can be baked at predetermined temperatures to provide high gloss and elastic coatings.