Abstract: A process for the production of a final curable resin comprising the steps of reacting a cyclopentadiene type compound with a compound having a double bond and hydroxyl group in the molecule to obtain a hydroxyl group-containing resin, reacting the thus obtained resinous polyol and at least one other polyol with a polybasic acid to obtain a hydroxyl group-containing alkyd resin and then esterifying the alkyd resin with an .alpha.,.beta.-unsaturated carboxylic acid thereby obtain the final curable resin. In one embodiment, this invention relates to said final curable resins and also to curable coating compositions containing same.

Abstract: Thermosetting powders, suitable for application by electrostatic spraying, onto conductive surfaces to form decorative and protective coatings. The powders contain, as essential ingredients, crosslinkable acrylic polymer, or polymers, a polyisocyanate as a crosslinking agent, and sucrose benzoate.

Abstract: This invention relates to a method for obtaining materials and products based on urea-formaldehyde resin. Thus, the invention is a method of obtaining composite materials and products, particularly for construction and building purposes, based on urea-formaldehyde resins. It relates particularly to cast materials and products. As the active filler and curing agent for the urea-formaldehyde resin there is used phosphogypsum, which is a by-product of phosphoric acid production and which can be used either moist or dried. Moist phosphogypsum usually contains 40 weight percent of water and is added in up to 40 to 90 weight percent of the overall mixture. The dried phosphogypsum contains only water of crystallization since its "loose" water has been extracted. It is added in quantities of from 30 to 50 weight percent of the overall mixture. This method does not require special temperatures and pressures, i.e., it can be used at atmospheric pressure and at room temperature.

Abstract: A pre-mixed adhesive composition comprised of a vinyl acetate co-polymer emulsion including a cross-linking catalyst and a cross-linking inhibitor providing a good cured water resistant Type II bond and extended shelf life so that the adhesive composition will not gel over an extended period of time and will therefore be usable for direct gluing application to semi-porous and porous substrates.

Abstract: Soil is stabilized and strengthened by application of solutions of calcium polysulfides. Compositions useful for soil stabilization comprise aqueous solutions of calcium polysulfide or aqueous mixtures of calcium polysulfides and dispersed organic polymers. Emulsifiers provide soil penetration.

Abstract: Process for the polymerization of vinyl chloride in aqueous suspension in the presence of a dispersing system comprising a cellulosic derivative and an anionic emulsifying agent wherein the polymerizaton is initiated by an oil-soluble initiator and a water-soluble free radical polymerization initiator is added in the course of polymerization. The thus obtained polyvinyl chloride powders are particularly suitable for the production of battery separators.

Abstract: The volatile alkali salt of the reaction product of a waxy starch product having a high amylopectin content and styrene-maleic anhydride copolymer and the method of making such product comprising hydrolyzing the copolymer in the presence of the high amylopectin starch product at an elevated temperature and in the presence of water for a time sufficient to hydrolyze the copolymer, disperse the starch in water, and permit the copolymer and starch to react, adding a volatile alkali to the heated mixture, and continuing the heating for a time sufficient to form the volatile alkali salt of said reaction product. The invention also comprises coatings comprising the volatile alkali salt of said reaction product.

Abstract: A carbonate resin having the phenolic hydrogen end atoms replaced by stress corrodant preventive groups which are halohydrocarbon groups, halocarbon groups or a silane groups or the hydrogen end atoms replaced by a capping group having fluorescent properties to provide ultraviolet light and stress corrosive protection.

Abstract: A method of producing substantially pure polyhalophenoxyphosphazene homopolymers or copolymers which are free from phenoxy groups formed by reduction of halophenols is provided. The method involves as a first step preparing a substantially pure sodium salt of a halogen-substituted phenol (in the case of homopolymers) or the substantially pure sodium salts of a mixture of a halogen-substituted phenol and an alkyl or alkoxy-substituted phenol, alkanol, or fluoroalkanol (in the case of copolymers) by reacting said halogen-substituted phenol or mixture with sodium hydride. Following this procedure, the resultant sodium salt or salts are reacted with a poly(dichlorophosphazene) of the formula (NPCl.sub.2).sub.n, in which n is from 20 to 50,000, to produce a mixture of polyhalophenoxyphosphazene homopolymer or copolymer and sodium chloride. The sodium chloride is then separated from the mixture to produce a substantially pure polyhalophenoxyphosphazene homopolymer or copolymer which is free from phenoxy groups.

Abstract: Hot processed bituminous mixed composition, particularly for road construction, characterized by containing non-hygroscopic, crystal water-containing substances, that upon heating to the mixing temperature of the mixed bituminous composition will completely or partly release their crystal water. The invention further relates to a filler as component of the mixed composition.

Abstract: Highly absorbent cellulosic fibers are made by incorporating therein from 2%-35% based on the weight of cellulose of a polymerized acrylamido-2-methylpropane sulfonic acid or a copolymer of acrylamido-2-methylpropane sulfonic acid with any one or combination of other polymerizable hydrophilic monomers such as acrylic acid, methacrylic acid, acrylonitrile and the like.

Abstract: A process for producing a curable resin is provided which comprises the steps of polymerizing a five-member cyclic compound (A) having an unsaturated conjugated double bond and represented by the general formula (A) given below; ##STR1## (wherein R is an organic residue having from 1 to 3 carbon atoms; m and n are integers and are in the relation of m+n=6)or Diels-Alder addition product thereof (A) with at least one phenolic compound (B) selected from the group consisting of monohydric and polyhydric phenols and alkyl substituents thereof to obtain a resin (I) having at least one phenolic hydroxyl group and an average molecular weight of from 300 to 2000; hydrogenating said resin (I) to convert the aromatic ring of the phenolic compound unit into the cyclohexane structure thereby to obtain a resin (II); and esterifying said resin (II) with an .alpha., .beta.-unsaturated carboxylic acid (C). A curable coating composition is also provided which comprises as vehicle the above curable resin.

Abstract: A heavy bodied reversible hydrocolloid dental impression material is disclosed. This material comprises agar-agar as the main component in which there is added a small amount of locust bean gum, potassium or zinc sulfate, a borate and nonionic poly(ethyleneoxide)homopolymer. This dental impression material is effective, for example, for bonding to an alginate material.

Abstract: Water-soluble dyestuffs of the formula ##STR1## in which Y is oxygen or an imino group, R.sup.1 and R.sup.2 are hydrogen, halogen or lower alkyl or lower alkoxy, n is 1 to 3 and Z is a cation, are useful for fluorescent inks.

Abstract: Cardable cellulosic fibers having improved water and fluid absorbency are made by incorporating therein an alkali metal or ammonium salt of a copolymer of acrylic acid and methacrylic acid prepared by a process wherein the two monomers are mixed together in ratios during the polymerization so that the amount of copolymer chains substantially richer in methacrylic acid moieties than the total ratio of acrylic acid and methacrylic acid monomers included in the copolymerization process and the number of copolymer chains considerably lower in degree of polymerization than the copolymer average are minimized.

Abstract: A liquid multi-purpose coating composition is disclosed which has significant resistance to heat transfer. The coating composition may be applied to many different types of substrates including wood, metal, concrete and other structural materials. The composition is a water-based liquid containing principally kaolin, staple fibers and a dispersing agent. The coating composition and articles coated therewith exhibit excellent insulating properties against heat and radiant energy. Considerable energy savings and various economies are obtained by the insulative compositions.

Abstract: The present invention relates to a group of novel compounds defined as covalently bound poly-N-vinyl pyrrolidinone (PVP)-heparins. These compounds are synthesized on the basis of a novel concept that heparin molecules can be modified to have new desirable qualities by binding heparin covalently to an appropriate polymer carrier which has the desired characteristics.Heparin is hydrophilic and thereby insoluble in organic solvent. It has a short half-life in vivo. PVP-heparins, on the other hand, not only retain the anticoagulant activities of heparin, but also have the solubility (in organic solvents) and longer half-life in vivo of PVP.PVP-heparins are produced either in anhydrous or heterogeneous media wherein PVP is activated by thionyl chloride to produce an imidoyl ion which is subsequently bound to heparin. PVP-heparin produced in anhydrous media is chloroform soluble and has been found useful for coating plastics and similar substances.

Abstract: Resins for use in making resin-coated granules are made by preparing a novolak resin from a phenol and formaldehyde in the presence of lactose and/or galactose, using an acid catalyst. Melt-coating the resin with an amine curing agent on to particulate refractory material gives resin-coated granules which can be moulded to make foundry moulds. The lactose and/or galactose can replace part of the phenol conventionally employed in preparing novolak resins and avoids the need for plasticizers.

Abstract: A method and composition is disclosed which is particularly suitable for forming a firm, bound aggregate-water support for floral arrangements with at least 60% by weight water. The composition comprises a water-insoluble, water-retaining binder, such as a particulate, water-insoluble, water-swellable, cross-linked polymer, and inert non-packing, highly porous water-trapping, aggregate particles dispersed throughout, the particles being present in an amount and having a bulk density and surface area effective to disperse the composition throughout the water as the composition is added to it without hand kneading or stirring. The binder should have water retention properties of at least 100 gm/gm. The aggregate particles should have an open structure and water retention properties of at least 4 gm/gm, have a surface area of at least about 10 m.sup.2 /gm and an apparent bulk density of not over 30 lbs/sq.ft. to avoid packing.

Abstract: A process for preparing a solid pigment dispersed composition which comprises subjecting a liquid composition comprising at least one ethylenically unsaturated polymerizable compound, at least one resin dissolved or dispersed therein and at least one pigment dispersed therein to suspension or bulk polymerization, if necessary, with previous color matching.