Abstract: A primer composition comprising:(A) an organosilicon compound formed by binding an organosilicon compound represented by the general formula (I): ##EQU1## wherein R.sup.1 represents a monovalent hydrocarbon group; X represents a hydrogen atom, a lower alkyl group, etc.; and 0.ltoreq.a<0.2, 0.ltoreq.b<0.2 and 1<c<4,with an organopolysiloxane represented by the general formula (II): ##EQU2## wherein R.sup.2 represents a monovalent hydrocarbon group containing no aliphatic unsaturated group; R.sup.3 represents an alkenyl group; Y represents a hydrogen atom, a lower alkyl group, etc.; and 1.8<d<2.2, 0.004<e<0.2 and 0.ltoreq.f<0.2,in a particular proportion;(B) an organic titanate; and(C) an organic solvent.This primer composition achieves adhesion with good durability at high temperatures, particularly in high temperature oils.

Abstract: A chipping-resistant coating resin composition having an active-hydrogen containing compound and a blocked isocyanate. The active-hydrogen containing compound is composed of(a) 100 parts by weight of a polyol (A) and(b) from 1 to about 30 parts by weight of a polyamine (B) and(2) The blocked isocyanate (C) contains from about 1 to about 15 percent by weight of effective isocyanate groups, and is contained in a proportion wherein the equivalent ratio of the sum of the hydroxyl groups in the polyol (A) and the primary and/or secondary amino groups in the polyamine (B) to the effective isocyanate groups in the blocked isocyanate (C), that is, {(A)+(B)}:(C) is in the range of from about 50:100 to about 100:50, is disclosed.A chipping-resistant coating compound composition containing, in addition to the above chipping-resistant coating resin composition, pigments, catalysts and/or stabilizers, is also disclosed.Further, a process for forming coating films having a thickness of about 100 .mu.

Abstract: Macrocyclic polyester oligomer compositions comprising alkylene isophthalate or terephthalate units or the like are prepared by the reaction of a diol with a diacid chloride in the presence of at least one amine characterized by substantially no steric hindrance around the basic nitrogen atom. The reaction is conducted under substantially anhydrous conditions and at a temperature form about -25.degree. to about +25.degree. C. The resulting macrocyclic oligomers may be converted to linear polyesters by contact with catalysts including alkali metal salicylates, stannous alkoxides and organotin compounds.

Abstract: A water repellency treatment agent which is non-corrosive to metals, comprising a solution as a volatile solvent of 1-20 wt % of silyl phosphate containing 1-10 wt % of phosphorus, and less than 20 wt % of an organopolysiloxane of general formula R.sub.a SiO.sub.(4-a)/2 having a viscosity of 5-10,000 centistokes at 25.degree. C., wherein the letter a has a value in the range 1.95<a<2.20, and R is a monovalent organic group selected from saturated or unsaturated monovalent hydrocarbon groups with 1-30 carbon atoms, halogenated hydrocarbon groups, alkoxy groups, hydroxyl groups and hydrogen atoms.

Abstract: A water-base paint for coating the inside surface of a metallic can, said paint comprising fine particles of a polyester resin dispersed in an aqueous medium in the presence of a surface-active agent, wherein(A) the polyester resin comprises units derived from a dicarboxylic acid and units derived from a diol, the units derived from the dicarboxylic acid containing units derived from terephthalic acid and units derived from isophthalic acid in a mole ratio of from 10:90 to 80:20, and at least 30 mole % of the units derived from the diol being derived from ethylene glycol,(B) the surface-active agent is composed of at least one compound selected from alkylaryl sulfonic acid salts, alkylsulfonic acid salts, dialkylsulfosuccinic acid salts, alkylphosphoric acid salts, polyoxyethylene alkylarylether sulfonic acid salts and polyoxyethylene alkylether sulfonic acid salts, and(C) the fine particles of the polyester resin have an average particle diameter of not more than 3 microns.

Abstract: Storage-stable, curable polyorganosiloxane compositions, whether solvent-free, in solution in an organic solvent or in aqueous emulsion, contain (A) a polydiorganosiloxane having silanol endgroups, (B) a polydiorganohydrosilane, and (C) a catalytically effective amount of a latent tin catalyst of the formula (1): ##STR1## and are cured into elastomeric state by heating to a temperature at least equal to the decomposition temperature of the latent catalyst (C); such polyorganosioxane compositions are well adopted for the thin-layer coating of a wide variety of useful substrates, e.g., paper.

Abstract: Organosilicon compounds containing at least one acylamino-substituted hydrocarbon radical are prepared by reacting an organohydroxysilicon compound containing at least one silicon-bonded hydroxy radical with a base to yield a silanolate. The silanolate is reacted with a cyclic aminosilane compound to form a siloxyalkylamide that is then reacted with an acyl chloride to give the desired product. All reactions can be carried out in a single reaction vessel using a nonaqueous solvent.

Abstract: A release agent composition which manifests almost no silicone migration and a very low slickness while nevertheless having a low release value is achieved by means of a release agent composition which is based on a methylalkenylpolysiloxane, an alkylhydrogenpolysiloxane crosslinker for the methylalkenylpolysiloxane, an organopolysiloxane containing monovalent hydrocarbon groups which lacks aliphatically unsaturated bonds and which contains 6 to 18 carbon atoms which functions to lighten the releaseability of the cured film, to check silicone migration, and to reduce the slickness, and a catalytic quantity of a platinum-type catalyst.

Abstract: An antistatic agent containing a cationic and/or amphoteric, water-soluble or water-dispersible and heat-reactive blocked urethane prepolymer as an essential component, said prepolymer having at least one cationic group and/or at least one amphoteric group in its molecule and having isocyanate groups blocked with a thermally dissociable blocking agent. The antistatic agent is applicable to various materials and can give the antistatic property with the water repellency, which can be kept for a long term, to the materials.

Abstract: Masonry structures are susceptible to cracking due to distortion caused by movement of their foundation, vibration, and/or drying out subsequent to the construction of the structure. Such cracking often occurs after the structure has been painted. This results in the crack being transmitted through the coating of paint. Upon repainting of the masonry structure new cracks often develop and are transmitted through the paint coating within a short period of time.This invention discloses a crack resistant coating for masonary structures comprising:(1) a crack absorbing layer which is contiguous to the masonry structure which contains beads which are essentially spherical and which are bound by a resin binder, and(2) a conventional coating layer which is contiguous to and covers the crack absorbing layer.

Abstract: A deep penetrating sealer composition which renders the treated surface resistant to water, metal ions and chloride ion penetration comprising a mixture of (1) an aromatic solvent, (2) a chlorinated solvent, (3) an aliphatic hydrocarbon solvent, and (3) a hydroxy-substituted polyorganosiloxane.

Abstract: A one-component adhesive and/or sealing mass which is stable and pumpable at temperatures up to 30.degree. C. containsat least one prepolymer on the basis of a polyurethane, which contains from 0.1 to 15 percent by weight, referred to the prepolymer, of free, reactive isocyanate groups, andat least one with heat activatable hardener.Thereby the stoichiometric ratio between said prepolymer and said hardener is chosen in such a way that only a partial cross-linkage is possible during heating said mass to temperatures from 60.degree. C. to 180.degree. C., and that a product is obtained having from high viscous to plastic characteristics.The inventive masses may be used for bonding and/or sealing of one or more materials of the same or different origin to a composite.

Abstract: Cohesive bonding between silicone rubber compositions and plastics is achieved using primer compositions comprising a solution of at least one member of a specified class of organotitanate esters in an organic liquid. Cohesive bonding of silicone rubber compositions to both plastic and metals is achieved by including at least one member from either of two specified classes of organosilicon compounds in the primer composition together with the organotitanate ester.

Abstract: The process for preparing polyurethanes by the reaction of a bicyclic amide acetal and a polyisocyanate in the presence of a plasticizer such as dioctyl phthalate and a polyurethane catalyst such as stannous octoate is described.

Abstract: This invention relates to organosiloxane compositions which have application as protective coatings for soft substrates. The compositions of the invention include a substituent selected from each of the following classes of compositions: organo-alkoxysilanes; polyoxymethylenes; monocarboxylic organic acids; and optionally inorganic hydroxyacids. The coatings formed form these compositions have properties as adhesion promoters and are abrasion resistant.

Abstract: Masonry structures are susceptible to cracking due to distortion caused by movement of their foundation, vibration, and/or drying out subsequent to the construction of the structure. Such cracking often occurs after the structure has been painted. This results in the crack being transmitted through the coating of paint. Upon repainting of the masonry structure new cracks often develop and are transmitted through the paint coating within a short period of time.This invention discloses a crack resistant coating for masonry structures comprising:(1) a crack absorbing layer which is contiguous to the masonry structure which contains beads which are essentially spherical and which are bound by a resin binder, and(2) a conventional coating layer which is contiguous to and covers the crack absorbing layer.

Abstract: Liquid bromine-containing alkoxylation products of butyne-(1,4)-diol which are storage stable are produced. More specifically, 1.5 to 2.5 mols alkylene oxide are reacted with each mol of butyne-(1,4)-diol present at elevated temperature in the presence of a catalyst. The catalyst is selected from (1) thioethers having a molecular weight of up to 5000 obtained by adding a mercaptan and/or mercaptoalcohol to an unsaturated hydrocarbon and/or (2) thioethers other than those of (1) having a molecular weight of from 500 to 5000 and/or (3) alkali metal chlorides. This alkoxylation product is then reacted with bromine at -10.degree. to 80.degree. C. The bromide is reoxidized with aqueous hydrogen peroxide solution, stabilized with a relatively non-volatile epoxide and dehydrated. The product thus obtained is particularly useful in the production of flame resistant isocyanate addition products such as polyurethane foams.

Abstract: Copolymer polyols are prepared by polymerizing ethylenically unsaturated monomer in a polyahl mixture in the presence of a triiodomethyl compound. The use of the triiodomethyl compound provides a lower viscosity, more stable copolymer polyahl.

Abstract: A process for copolymerizing acrylonitrile (AN) with an amount of a monomer of a specific structure in an organic solvent which can dissolve AN but cannot dissolve polyacrylonitrile (PAN). The polymer dispersion in the solvent is stable upon storage. The dispersed particles of the polymer are uniform and fine, and are sufficiently prevented from agglomeration and agglutination.

Abstract: A composition consisting essentially of (A) a polymer having at least one nitrogen-hydrogen bond; and (B) a readily hydrolyzable, anhydrous additive selected from the group consisting of titanates, zirconates, vanadates, germanates, and mixtures thereof is disclosed. The uniqueness of this invention is that the polymer is crosslinked upon exposure to moisture, such as water vapor but is reverted to noncrosslinked polymer after exposure to liquid water. Furthermore, the components can be stored together, in the absence of moisture, with no gelation.

Abstract: Polymerization slurries of elastomeric isoolefin homopolymers and copolymers, such as butyl rubber, in diluents such as methyl chloride are effectively stabilized against agglomeration of polymer particles through addition of minor proportions of an hydrogenated preformed copolymer stabilizer having both a lyophobic and a lyophilic portion. The chemical and structural nature of the lyophobic and lyophilic portions which comprise the copolymer stabilizer are significant in determining the extent and method of hydrogenation for production of the most effective stabilizer. Agglomeration of polymer products is effectively prevented, yielding a number of significant processing advantages. The process is especially adaptable to the production of isobutylene-isoprene butyl rubber.

Abstract: A highly branched copolymer particularly suitable for forming pressure sensitive adhesives prepared in the presence of specified amounts of tert-butylchloride. Conjugated diene monomers are copolymerized with monovinylaromatic monomers in the presence of an organolithium initiator and a suitable amount of tertiary butylchloride. The holding power of adhesives prepared thereby is greatly increased.

Abstract: The invention concerns a material having good resistance to mechanical stresses and heat and in particular having substantial resistance to the penetration of a directed flame such as the pointed flame of a blowpipe.The material comprises a substance which can be polymerized such as a polyurethane, sulfur, and possibly halogenated compounds, phosphorus-bearing compounds, phosphohalogenated compounds, trivalent antimony oxide, solid or liquid fillers and pigments.The material may be used for the production of strong walls, in particular by filling internal cavities of armoured doors, walls of strong rooms or safes.

Abstract: Polymerization slurries of elastomeric isoolefin homopolymers and copolymers, such as butyl rubber, in diluents such as methyl chloride are effectively stabilized against agglomeration of polymer particles through addition of minor proportions of (i) a preformed copolymer stabilizer having both a lyophobic or lyophilic portion, or (ii) an in situ formed stabilizer from a functional lyophilic stabilizer precursor capable of copolymerizing or otherwise chemically bonding with the polymer product. Agglomeration of polymer products is effectively prevented, yielding a number of significant processing advantages. The process is especially adaptable to the production of isobutylene-isoprene butyl rubber.