Abstract: Products made using the RIM process where the reaction mixture contains an acidic release agent have improved green strength when the reaction mixture also contains a peralkylated polyalkylene polyamine.

Abstract: Water-resisting organic optical material having excellent transmittancy in visible range and less than 40% transmittancy in infra red range can be easily prepared by adding a metal compound for supplying a desired amount of Cu++ ion, together with a compound for supplying carboxyl radical, phosphoric radical and/or sulfonic radical to a matrix resin.

Abstract: Polyamines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, which have the general formula: ##STR1## wherein n is 0-1000; R.sub.1 =R.sub.2, and R.sub.1 and R.sub.2 are from the group --CH.sub.2 --CH.sub.2 --; --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3)H--CH.sub.2 --; and R.sub.3 and R.sub.4 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH.

Abstract: The present invention is directed to the discovery that certain additives of the type described in U.S. Pat. No. 3,726,952 effectively slow down the reaction rate of certain RIM systems based upon aliphatic amine terminated polyethers.

Abstract: A cyanoacrylate monomer adhesive formulation which has improved thermal properties resulting from the inclusion in the formulation of an effective amount for enhancing the thermal resistance of the cured polymer of a mono, poly or hetero aromatic compound characterized by at least three substitutions on an aromatic ring thereof, two or more of said substitutions being electron withdrawing groups selected from the group consisting of NO.sub.2, CN, CF.sub.3, NR.sup.1.sub.3.sup.+, SR.sup.1.sub.2.sup.+, C(.dbd.O)R.sup.1, C(.dbd.O)OR.sup.1, NO, CCl.sub.3, SO.sub.2, S(.dbd.O), SO.sub.3, SO.sub.2 R.sup.1, SO.sub.2 OR.sup.1 and F, one or more of said substitutions being leaving groups selected from the group consisting of F, Br, Cl, I, NO.sub.2, CN, SOR.sup.1, SO.sub.2 R.sup.1 and SO.sub.2 OR.sup.1, and R.sup.1 is an optionally substituted hydrocarbon group. Example such compounds have the formula: ##STR1## where L is the leaving group and the W groups are the electron withdrawing groups.

Abstract: An electrically conductive polyurethane elastomer obtained by the reaction of a polytetramethylene ether glycol having the formula HO[(CH.sub.2).sub.4 O].sub.x H where x is from 8 to 41 and from about 20 to about 95 parts by weight per 100 parts by weight of said glycol of at least one diisocyanate, a sufficient amount of chain extender and cross linking agents to provide a crosslinked elastomer and an amount of an asymmetric ionic quarternary ammonium salt having the formula: ##STR1## where R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are C.sub.n H.sub.2n+1 and 1.ltoreq.n.ltoreq.25 sufficient to provide a D.C. volume resistivity of from about 10.sup.7 to about 10.sup.11 ohm cm. In a preferred embodiment the asymmetric ionic quarternary ammonium salt is hexadecyl ethyl dimethyl ammonium ethyl sulfate.

Abstract: A stable polymer dispersion in polyoxyalkylenepolyamine is provided by the in situ polymerization of at two different monomers selected respectively from (a) a first monomer capable of forming a homopolymer which does not precipitate out upon the in situ polymerization and (b) a second monomer capable of forming a homopolymer which precipitates out upon the in situ polymerization. The dispersion is useful as a raw materials of polyurea RIM, forms, elastomers and other products.

Abstract: Polymer/polyol compositions, obtained by polymerizing an ethylenically unsaturated monomer in situ in a polyol in the presence of inner-olefin containing at least 5 carbon atoms, are of lower viscosity and can provide polyurethanes having improved properties. Polymer/polyol compositions, obtained by polymerizing an ethylenically unsaturated monomer, in situ in a polyol in the presence of an azo compound and a peroxide having a 10 hours half-life period temperature which is lower by at least 10.degree. C. than that of the azo compound, have improved stability even at higher styrene content.

Abstract: The invention relates to the use of a substantially clear and at least largely solventless, aqueous, one-component polyurethane dispersion based on the reaction products ofa polyol mixture consisting completely or partly of polypropylene glycol,a mixture of polyfunctional isocyanates consisting completely or partly of .alpha.,.alpha.,.alpha.',.alpha.'-tetramethyl xylene diisocyanate (TMXDI),a functional component capable of salt formation in aqueous solution andoptionally a chain-extending agentas a universal household adhesive and to a process for its production in the absence of inert solvents.

Abstract: Aqueous dispersions of a copolymer obtained by free-radical polymerization and containing from 0.01 to 40% w/w of polymerized units of comonomers having at least one aldehyde or keto group, which dispersions contain at least one polyisocyanate in which the isocyanate groups are blocked by oximes.

Abstract: The invention provides an aqueous coating composition curable at ambient temperature comprising a compound having at least 2.alpha.,.beta.-ethylenically unsaturated carboxylate groups; a polyamino amide having an amine number ranging from 60-1000; and either a nitroalkane, a formic acid ester, or an organic compound occurring in at least 2 tautomeric forms, and in one of the tautomeric forms a labile hydrogen atom is linked to a carbon atom. A process of coating a substrate with such composition is also provided.

Abstract: A condensation curable organopolysiloxane composition, capable of curing in the presence of moisture in air to become a rubber-like elastic material, comprising a compound having at least one carbon-bonded hydroxyimino group in its molecule. The composition is capable of inhibiting effectively, and for a long time, the propagation of any of a variety of fungi on the surface of a cured product of the composition.

Abstract: Aqueous dispersions of fluorine-containing polymersThe aqueous solvent-free dispersions contain polymers of monomers of the formulae (1) and (2)H.sub.2 C.dbd.CR--COOC.sub.2 H.sub.4 --C.sub.n F.sub.2n+1 (1)where R is fluorine, chlorine, hydrogen or methyl and n is from 5 to 18,H.sub.2 C.dbd.CRX (2)where R is hydrogen or methyl and X is a group of the formula C.sub.6 H.sub.5, CO.sub.2 CH.sub.2 C.sub.6 H.sub.5, CO.sub.2 C.sub.2 H.sub.4 C.sub.6 H.sub.5, CN, CO.sub.2 CH.sub.2 C.sub.6 H.sub.4 Cl, CO.sub.2 C.sub.6 H.sub.4 --C.sub.1 --C.sub.4 --alkyl, CO.sub.2 C.sub.2 H.sub.2n+1, where n is from 10 to 22, CONHY, where Y is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -hydroxyalkyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl or CO.sub.2 -C.sub.1 -C.sub.20 -alkyl, and one or more emulsifiers of the formula (3)C.sub.n F.sub.2n+1 --CR.sup.1 R.sup.2 --CHR.sup.3 --(CH.sub.2).sub.x --NR.sub.2 O (3)where R is C.sub.1 -C.sub.4 -alkyl or hydroxyethyl R.sup.1 and R.sup.2 are identical or different and each is C.

Abstract: A nonwoven fabric, particularly composed by long-stock synthetic resin yarns such as polyethylene and polypropylene is provided at one or both surfaces thereof with an ink-setting layer formed by coating, drying and curing a resin composition containing some of acrylic resins, synthetic rubbers and polyester resins. The ink-setting layer is excellent in the transfer property and fixing ability to an oil ink which is ordinarily used for offset printing, and prevents the nonwoven fabric from being swelled or transformed by a petroleum high-boiling-point solvent contained in the oil ink. Preferably, a low-temperature cross-linking agent is incorporated with the resin composition of the ink-setting layer so as to complete cross-linking of the resin composition at a low temperature at which heat shrinkage or heat damage of the nonwoven fabric will not be caused, in a shortened period of time.

Abstract: A process for preparing solid polymer blends and composites of controlled porosity in microemulsions containing both hydrophilic and hydrophobic phases. The microemulsions are prepared with surfactant systems that may include a cosolvent as a part thereof, together with a hydrophilic monomer, or monomers, dissolved in the hydrophilic phase of the microemulsion, and a hydrophobic monomer, or monomers, dissolved in the hydrophobic phase. Polymerization of the monomers thus present is carried out to provide highly uniform dispersions of the resulting polymers in each other. The invention allows for the control of the morphology of the blends, the improvement in compatability of otherwise incompatible polymers, and improvements in the processability of the polymers due to enhanced thermal and mechanical properties.

Abstract: Macrocyclic poly(alkylene dicarboxylate) oligomers are prepared in high yield by the reaction of a dicarboxylic acid chloride such as terephthaloyl chloride with at least one bis(hydroxyalkyl) ester such as bis(4-hydroxybutyl) terephthalate, in the presence of a highly unhindered amine or a mixture thereof with at least one other tertiary amine such as triethylamine, in a substantially inert organic solvent such as methylene, chlorobenzene or a mixture thereof. The concentration of the reagents in the reaction mixture are at least 0.08M.

Abstract: Ingredients or precursor for synthesizing or formulating urethane polymers and prepolymers are dried by admixing therewith an enamine which reacts with the water. While some ingredients, such as polyols and solvents, can be individually dried in this manner, the enamine preferably is added after the polyol(s), solvent(s) and additives have been blended. When prepolymers having a relatively low free isocyanate content are to be synthesized or admixed with other ingredients, a sufficient amount of an isocyanate, preferably the same one used for synthesis, is added to react with amines liberated by the enamine-water reaction to produce an inert urea derivative.

Abstract: A silicone rubber composition that will be cured using as catalyst a platinum family metal and an organic peroxide, comprising as its constituent component an organosilizane compound represented by the following general formula:(R.sup.2).sub.3 SiNH(R.sup.3 R.sup.4 SiO).sub.n R.sup.3 R.sup.4 SiNHSi(R.sup.2).sub.3wherein R.sup.2 represents a substituted or unsubstituted monovalent hydrocarbon group, R.sup.3 and R.sup.4, which may be the same or different, each represent a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group, and n is an integer of 2 to 20. Even if a large amount of a silica filler is blended in this silicone rubber composition, the silicone rubber composition is excellent in that it has suitable plasticity and is low in crepe hardening and good in workability such as rollability and extrudability.

Abstract: Concentrated, aqueous, colloidal dispersions of tetrafluoroethylene polymers having a polymer solids content of 25 to 70% by weight, which comprise, as the dispersion stabilizer, an amine oxide of the formula ##STR1## in which R.sup.1 is an alkyl radical having 6 to 22 carbon atoms or a mixture of such alkyl radicals and R.sup.2 is an alkyl radical having 1 to 22 carbon atoms or a mixture of such alkyl radicals, and in which R.sup.1 and R.sup.2 are identical or different and 50 to 0% by weight of the alkyl radicals R.sup.1 and R.sup.2 can be replaced by alkenyl radicals having 6 to 22 carbon atoms and having 1 to 3 C.dbd.C double bonds, are obtained by concentration with addition of these dispersion stabilizers. The dispersions are used for impregnating yarns and textile sheet-like structures.

Abstract: The present invention is directed to a novel internal release agent, a mixture of isocyanate reactive materials containing the release agent and a RIM process using the release agent. The novel release agent is the reaction product of i) an ester prepared by reacting a specific tetrol with a mixture of saturated and unsaturated acids, and ii) a neutralizing agent.

Abstract: An isocyanate-reactive composition having a plurality of isocyanate-reactive groups comprising:(i) at least one polyol having a number average molecular weight of from 2000 to 12,000;(ii) at least one low molecular weight polyol, including water, immiscible in said high molecular weight compound and having a molecular weight in the range of 18-500; and(iii) a compatibilizing amount of an amidine compound of the Formula (1) ##STR1## wherein each of R.sup.1 to R.sup.4 represent H or, independently or together, an organic radical selected from:(a) alkyl radicals having 1 to 25 carbon atoms;(b) cyclo alkyl radicals having 5 to 25 carbon atoms;(c) aralkyl and/or aryl radicals having 6 to 18 carbon atoms, and(d) polymeric chains containing hetero atoms selected from polyether, polythioether, polyester, polycarbonate and polyacetal chains.The amidine improves the stability of compositions comprising high and low molecular weight polyols.

Abstract: A method of producing a polyether copolymer by reacting a dihalogenobenzonitrile, 1,4-bis(4'-halobenzoyl)benzene, with 4,4'-biphenol in an aprotic polar solvent in the presence of an alkali metal compound to produce a polyether copolymer having repeating units represented by the following general formula (I) ##STR1## and the repeating units represented by the following formula (II) ##STR2## The molar ratio of the repeating units represented by the formula (I) based on the total of the repeating units represented by the formula (I) and the repeating units represented by the formula (II) (the molar ratio of (I)/{(I)+(II)}) is from 0.1 to 0.8. The polyether copolymer has a melt viscosity (the viscosity under no shearing stress) of at least 500 poise as measured 400.degree. C.

Abstract: This invention provides:(i) an acitve energy beam-curable composition for coating the surface of optical fibers therewith, the composition comprising about 100 parts by weight of an active energy beam-curable substance, about 0.5 to about 100 parts by weight of a particulate substance having a mean particle size of about 0.2 to about 200 .mu.m and optionally a photopolymerization initiator;(ii) a coated optical fiber prepared by applying the composition of item (i) to the surface of an optical fiber and curing the coating;(iii) a bundle-type optical fiber cable prepared using the coated optical fiber of item (ii);(iv) an optical fiber unit of the tape type prepared by applying the composition of item (i) to optical fibers and curing the coating; and(v) an optical fiber prepared using the optical fiber unit of item (iv).

Abstract: A room temperature curable organopolysiloxane composition comprising a diorganopolysiloxane having a hydroxyl group or alkoxy groups, a filler, a particular alkoxysilane, an organosilicon compound having a particular guanidinyl group, and an organic tin compound, and further comprising an organosilicon compound having at least one group represented by the general formula: ##STR1## where R.sup.4 is a substituted or unsubstituted monovalent hydrocarbon group, or a substituted or unsubstituted phenyl group, R.sup.5 and R.sup.6 are each a hydrogen atom, methyl or ethyl group, and n is an integer of 0, 1 or 2. By virtue of the last component, the composition exhibits markedly good storage stability.

Abstract: A nonionic dispersing agent suitable for use in the production of aqueous polyurethane dispersions, said agent having the formula: ##STR1## wherein R.sup.1 represents a monovalent hydrocarbon radical containing 1-12 carbon atoms;R.sup.2 represents hydrogen or a mixture thereof with methyl and/or ethyl, at least 40% of the R.sup.2 substituents in said mixture being hydrogen;R.sup.3 represents an isocyanate-reactive organic radical;R.sup.4 represents H or an isocyanate-reactive organic radical;Z represents an alkylene radical containing 2-4 carbon atoms;m is an integer from 5 to 150, andn is 0 or 1.

Abstract: A shade enhancing agent comprises an aqueous resin emulsion composition obtained by polymerizing a monomer in the presence of a cationic surfactant or a cationic protective colloid, polymerizing a monomer and adding a cationic protective colloid or polymerizing a monomer in the presence of a cationic or nonionic emulsifying dispersant so as to have a cationic group in the molecule, a dry film of said composition having a glass transition point (Tg) in the range between 20.degree. C. and 110.degree. C. and a refractive index of 1.50 or less, said emulsion composition having a zeta potential in the range between +5 and +80 mV at an ion strength of 10.sup.-3 and a pH value of 7.

Abstract: A method of preventing polymer scale deposition in a polymerization vessel during polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization vessel of which the inner wall has been previously first coated with(A) a coating solution comprising a condensate of an aromatic compound and at least one member selected from the group consisting of metal compounds and inorganic colloids, and the coating thus formed has been then coated with(B) a coating solution comprising at least one member selected from the group consisting of anionic polymeric compounds, amphoteric polymeric compounds and hydroxyl group-containing polymeric compounds; and a polymerization vessel having a coating thus formed. According this method, polymer scale deposition on the inner wall, etc. of the polymerization vessel can be effectively prevented.

Abstract: Carboxyl-terminated and hydroxyl-terminated aliphatic polyester compositions derived from 1,4-cyclohexane-dicarboxylic acid, and a glycol component comprising primarily of cycloaliphatic diols and modifying aliphatic glycols, said polyesters being optionally stabilized by the presence of ultraviolet light absorbing compounds and/or hindered amine light stabilizers and being used in powder coating formulations to provide improved weatherability thereto.

Abstract: The present invention relates to spinnable and mouldable polyamide-imide solutions as well as the process for their preparation.They contain 4 to 35% of a polyamide-imide having a polydispersity index.ltoreq.2.1 in a solvent mixture containing 45-100% by weight of DMEU and 0-55% of an aprotic polar solvent. They are obtained by the reaction, in dimethylethyleneurea of pH.ltoreq.7 as polycondensation solvent, of a diisocyanate, an aromatic acid anhydride, optionally an alkali or alkaline earth dicarboxybenzene sulphonate and optionally another aromatic dicarboxylic acid, the polyamide-imide concentration therefore being from 4 to 35%, then by dilution in a polar solvent at a temperature of between 120.degree. and 200.degree. C.The solutions thus obtained are limpid at ambient temperature, capable of being stored and have an improved color.

Abstract: A moisture curable polyurethane composition comprising a polyaldimine represented by the formula (I):Y--N=CH-X).sub.n (I)wherein X is an aryl group having from 6 to 15 carbon atoms, Y is a divalent or trivalent hydrocarbon group having from 2 to 15 carbon atoms or a divalent or trivalent polyoxyalkylene group having a molecular weight of from 70 to 6000, and n is an integer of 2 or 3, and a polyisocyanate and/or a polyurethane prepolymer having 2 or more isocyanate groups; and a water proof material, flooring material, sealing material, wall covering material and paint comprising said composition and various fillers, are disclosed. The polyurethane composition has excellent storage stability and quick rate of curing in application.

Abstract: The present invention relates to a process for producing a resin useful in plastic lenses, to plastic lenses containing the resin and to a process for producing the lenses.

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: Curable fluorosilicone compositions, which contain an aryl amino group-containing organopolysiloxane to enhance heat resistance in the open air.

Abstract: Amino resin solutions having an electrical conductivity of <100 .mu.S/cm for impregnating paper are obtainable byA) methylolation of melamine with aqueous formaldehyde in a molar ratio of from 1:2 to 1:5 in the presence of a tertiary organic amine at a pH of from 7 to 12,B) etherification with a molar excess, based on the methylol groups, of a C.sub.1 -C.sub.4 -alcohol in the presence of an unsubstituted or substituted dicarboxylic acid and/or polycarboxylic acid at a pH of from 3 to 6,C) neutralization of the reaction mixture with an inorganic base and removal of the volatile components by distillation, except for a water content of <10% by weight, based on the reaction mixture, andD) addition of a C.sub.1 -C.sub.4 -alcohol to give a solids content of from 40 to 90% by weight, based on the amino resin solution, and removal of insoluble components by filtration.

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: The present invention relates to resin useful in preparing plastic lenses having a high refractive index comprising reacting an aliphatic polyisocyanate compounds having at least one sulfur atom with one or more of active hydrogen compounds selected from the group consisting of a polyol, a polythiol having sulfur atoms only in a mercapto groups, and a polythiol having at least one sulfur atom other than in the mercapto groups; lenses containing the above-mentioned resin; and a method for the preparation thereof characterized by adding an internal release agent to the mixture of the above-mentioned raw materials in casting lenses from the resin; and lenses obtained by this method.

Abstract: There is provided a self-leveling silicone composition comprising(a) an acyloxy-terminated polydiorganosiloxane,(b) an effective amount of condensation catalyst, and(c) an amount of amine effective for rendering said composition self-leveling.

Abstract: Amphoteric polymers prepared by polymerization of (a) acrylic acid, (b) N,N-dimethyl- or N,N-diethylaminoethyl methacrylate and, optionally, (c) esters of methacrylic or acrylic acid prepared by (i) emulsion polymerization of (b), (c) and the methyl ester of (a), followed by basic hydrolysis, or (ii) polymerization of (a), (b) and (c) in the presence of a strong acid, and photographic emulsions comprised of said polymers in which the molar ratio of (a) to (b) is at least 2 to 1 and a silver halide.

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: The present application relates to a novel method of stabilizing the molecular weight of alkoxylates and stable compositions. The polyoxyalkylene compounds have incorporated into them, from the time of reaction of the alkylene oxide, a free radical type inhibitor which significantly improves stability of both the polymer.

Abstract: A novel method for making stable aqueous microemulsions of high molecular weight polydiorganosiloxanes which comprises sequentially adding at an effective rate a standard emulsion comprised of polydiorganosiloxane precursor, surfactant, and water to a polymerization catalyst medium while mixing to form a clear, stable aqueous microemulsion of polydiorganosiloxane.

Abstract: A thermosetting composition for chemical resistant tile and brick mortar is disclosed. The composition includes a thermosetting resin having a content of 10-25% by weight (and having trace amounts of a promoter such as an amine or amide and optionally having trace amounts of a stabilizer such as cobalt naphthenate) for use with a pre-mixed dry powder comprising the remainder. The pre-mixed dry powder includes an aggregate such as silica having a content of 75-90% by weight, a pigment such as titanium dioxide or iron oxide having a content of 0.25-2% by weight, a catalyst such as benzoyl peroxide having a content of 0.1-4% by weight, and a thickener consisting of organoclay having a content of 1/2-6% by weight.

Abstract: A resin composition being useful for coating on electrically conductive lines comprises (A) a halogen-containing polyester having a halogen content of 0.5 to 30 wt. % and being a polycondensation product of (a), (b) and (c) wherein(a) is a component composed mainly of an aromatic dicarboxylic acid or an ester forming derivative thereof,(b) is a component composed mainly of an aliphatic glycol or an ester forming derivative thereof, and(c) is a component composed of an ester forming compound containing a halogen and 0.1 to 10 wt. %, based on the total composition, of (B) at least one carbodiimide compound.

Abstract: A stable polymer polyol made by the in situ polymerization of two or more monomers in a polyol blend wherein at least one monomer is a bifunctional compound containing both an isocyanate group and an ethylinically unsaturated group and wherein the polyol blend contains a base polyol and an amine terminated polyether which is more reactive with the bifunctional compound than is the base polyol.

Abstract: Polyesters useful as a binder or a component of a binder for powder lacquers and which contain hydroxyls, carboxyls or both and which have an acid value of up to 50, a hydroxyl value of up to 200 and a sum of hydroxyl value and acid value of from 20 to 200 is produced by reacting:(a) an acid component selected from the group consisting of (a1) at least one poly-functional organic carboxylic acid, (a2) at least one ester-forming derivative of a poly-functional organic carboxylic acid, (a3) at least one organic hydroxycarboxylic acid, (a4) at least one lactone of an organic hydroxycarboxylic acid, and mixtures thereof, with the proviso that at least 50 mol-% of component (a) consists of aromatic species of components (a1), (a2), (a3), (a4), or mixtures thereof,with(b) a polyol component which is at least one polyhydric alcohol having a molecular weight in the range from 62 to 250,while maintaining an equivalent ratio of carboxyl groups to hydroxyl groups of form 0.65:1 to 1.

Abstract: An ultra-fine particulated polymer latex having an average particle size of 100 nm or less, a crosslinked structure and a glass transition temperature lower than a value calculated by a weight fraction method.

Abstract: A silicone composition curable to a heat stabilized silicone elastomer comprising at least one polyorganosiloxane having the formula: ##STR1## where R is hydrogen or substituted or unsubstituted alkyl, alkenyl or aryl having less than 19 carbon atoms, each of A and D may be any of methyl, hydroxy or vinyl groups,0<m/n.ltoreq.1 and m+n>350,a complex comprising a transition metal salt of at least one polydentate chelating ligand having the formula: ##STR2## where each R.sub.1 may be an alkyl biradical having 1 to 6 carbon atoms or an aryl biradical having less than 19 carbon atoms R.sub.1, is an X' substituted R.sub.1, each of Z and E may be any of carboxy thiocarboxy, dithiocarboxy, or --N(R.sub.2).sub.2, --As(R.sub.2).sub.2, --S(R.sub.2) where each R.sub.2 may be any of hydrogen or an alkyl radical having 1 to 6 carbon atoms or any aryl radical having less than 19 carbon atoms, X' may be any of hydrogen, carboxy, thiocarboxy, dithiocarboxy, --N(R.sub.2).sub.2, --A.sub.s (R.sub.2).sub.2, or --S(R.sub.

Abstract: A process for the production of optionally foamed moldings having a compact surface by the reaction in closed molds of a mixture of(a) organic polyisocyanates,(b) compounds containing isocyanate-reactive groups and having a molecular weight of 62 to about 10,000 and(c) mold release agents based on salts of (i) saturated or unsaturated aliphatic or cycloaliphatic carboxylic acids or carboxylic acid mixtures containing (on a statistical average) at least 8 carbon atoms per molecule and (ii) tertiary amines,characterized in that the release agents (c) used are salts in which the amine component (ii) is based on tertiary monoamines or mixtures of tertiary monoamines corresponding to the following formula ##STR1## in which R.sub.1 represents a saturated or unsaturated aliphatic hydrocarbon radical containing at least 12 carbon atoms and R.sub.2 and R.sub.

Abstract: An improved coating for heat resistant substrates is an aqueous dispersion of polymers prepared by polymerization of olefinically unsaturated monomers in an aqueous medium in the presence of radical formers and emulsifiers, wherein the emulsifiers are polyisocyanate addition products having a molecular weight below 20,000 and containing from 5 to 1000 milliequivalents of anionic structures corresponding to the following formula--NH--CO--N.sup..crclbar. --C.tbd.Nincorporated therein per 100 g of solids content.

Abstract: Aqueous polymer dispersions useful for coating substrates are prepared by polymerization of olefinically unsaturated monomers in aqueous medium in the presence of radical formers and hydrophilically modified, urethane-group-containing emulsifiers having an average molecular weight below 30,000, wherein the urethane-group-containing emulsifiers are oligourethanes having a branched molecular structure which(i) are produced from organic polyisocyanates and organic compounds containing isocyanate-reactive groups with the reactants containing hydrophilic groups or groups convertible into hydrophilic groups and which are monofunctional or difunctional to isocyanate addition reaction, with the molar ratio of monofunctional hydrophilic components to the corresponding difunctional components being at least 2:1, and which(ii) have a content of chemically incorporated hydrophilic groups sufficient to impart the oligourethane solubility or dispersibility in water, with the proviso that, on a statistical average, at least