Abstract: There is provided an adhesive system comprised of a pressure-sensitive adhesive matrix having dispersed therein organic particulate solids having a particle size no greater than 300 microns, and generally no greater than 225 microns, which matrix may have at least one, and generally two, sides coated with an unfilled pressure-sensitive adhesive material, which adhesive materials generally may be acrylic materials. Such adhesive system is one generally provided as a sheet, including elongated tapes, having a thickness of from about 25 to 60 mils.

Abstract: There is provided an adhesive system comprised of a pressure-sensitive adhesive matrix having dispersed. therein organic particulate solids having a particle size no greater than 300 microns, and generally no greater than 225 microns, which matrix may have at least one, and generally two, sides coated with an unfilled pressure-sensitive adhesive material, which adhesive materials generally may be acrylic materials. Such adhesive system is one generally provided as a sheet, including elongated tapes, having a thickness of from about 25 to 60 mils.

Abstract: An adhesive system having a pressure-sensitive adhesive matrix and dispersed therein particulate solids wherein the adhesive system has a light transmission within the range of 15 to 80 percent transmission, and preferably 25 to 75 percent transmission. The adhesive system may include a coating of untilled pressure sensitive material. The particulate solids preferably have a particle size no greater than 300 microns, and may be organic particulate solids, preferably certain polymeric compositions.

Abstract: A method and apparatus for rapidly dissolving particles of dry water soluble polymers or gums in water. A suspension of polymer particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby the finely divided particles are forced into solution. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.

Abstract: A method for rapidly dissolving particles of dry water soluble polymers or gums in water. A suspension of polymer particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby the finely divided particles are forced into solution. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.

Abstract: A method for rapidly dissolving particles of dry water soluble polymers or gums in water. A suspension of polymer particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby the finely divided particles are forced into solution. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.

Abstract: Novel polymeric compositions useful as thickeners and rheology modifiers for oil-in-water emulsion systems are disclosed. The water-soluble or swellable compositions described contain, prior to polymerization, from:______________________________________ 10-70% Acrylamide or methacrylamide; 20-70% Acrylic acid, methacrylic acid, or their water-soluble salts; 5-50% Of a hydroxyalkylacrylate; 0-10% Of a polyfunctional monomeric branching material; and, 0-15% Low molecular weight water-soluble copolymer of a non-ionic or anionic water-soluble vinyl addition monomer and lower alkylacrylate. ______________________________________Optionally a water-soluble polymer dispersant may be added to the composition after polymerization.

Abstract: Water-soluble aniline-formaldehyde-polyamine polymers provide excellent flocculants for low turbidity waters.

Abstract: An improved method for scavenging dissolved oxygen from alkaline waters which comprises using dihydroxy acetone catalyzed with at least 1 percent based on the weight of said dihydroxy acetone, of a catalyst from the group consisting of hydroquinone and a water-soluble compound of manganese.

Abstract: An improved aqueous defoamer composition of the type comprising from 70-90% by weight of a water-insoluble organic liquid, from 0.1 to about 20% of a hydrophobic silica suspended in the organic liquid, and from about 1 to about 20% of an oil-soluble spreading agent, the improvement which comprises utilizing as the hydrophobic silica a silica which has at least a portion of its surface esterified with a fatty epoxide.The invention also contemplates an improved method for hydrophobizing silica particles by reacting them in an organic liquid with a fatty epoxide.

Abstract: An improved method for scavenging dissolved oxygen from alkaline waters which comprises treating said waters with at least 10 ppm of methylene blue in its reduced or leuco base form.

Abstract: A process of stabilizing soil which comprises contacting such soil with an aqueous solution of a water-soluble diacrylate ester of a polyoxyalkylene glycol monomer, which solution also contains a water-soluble polymerization catalyst capable of polymerizing the monomer into a water-insoluble gel.

Abstract: Water-based anti-blemish paints useful for coating the outside of tires prior to final shaping and curing is disclosed.Typical compositions have the following formula:______________________________________ Ingredients % By Weight ______________________________________ Water 65-85 Surfactant 0.

Abstract: A method of removing dissolved oxygen from boiler water which comprises adding to the water an oxygen scavenging amount of carbohydrazide.

Abstract: Water-based anti-blemish paints useful for coating the outside of tires prior to final shaping and curing is disclosed.Typical compositions have the following formula:______________________________________ Ingredients % By Weight ______________________________________ Water 65-85 Surfactant 0.

Abstract: As antifoulants in the processing of crude oil to minimize deposition of condensates and polymeric deposits on heat exchangers, compounds of the following structure have been utilized: ##STR1## X = OH, NH.sub.2, NHR, NHCH.sub.2 CHOHR (R = straight or branched chain alkyl containing 2 to 20, preferably 6 to 16, carbon atoms.)Y = h, ch.sub.2M = ammonia, amine containing 1-54 carbons where the total number of carbon atoms in X and M is .gtoreq. 8 but .ltoreq. 54.n .gtoreq. 1As preferred compounds, sulfanilic acid amine salts are preferred in the above formula where X = NH.sub.2, NHR, NHCH.sub.2 CHOHR.Also preferred are phenolic compounds which are sulfonated and subsequently partially or completely neutralized with amines as in the above formula where X = OH.The compounds show an effective dosage range from about 40 ppm to 300 ppm and the effective percent reduction in fouling in crude oils ranging from 42-94%.

Abstract: Substituted succinic acids and salts thereof having the formula: ##STR1## where R is H or ##STR2## and M is H, alkali metal, or an amine, are useful as chelants and stabilizers for heavy metal ions.

Abstract: Stable water-in-oil emulsions of water soluble ethylenically unsaturated polymers are prepared using as a water-in-oil emulsifying agent a partially esterified lower N,N-dialkanol substituted fatty amide.Additionally, from 5-50 weight percent of the surfactant may be from surfactants of the following classes:A. salts of fatty tertiary amines, said fatty tertiary amine having one alkyl group containing from 15-22 carbon atoms, and two alkyl groups having from 1-3 carbon atoms, said salt selected from the group of anions consisting of halogens, sulfate, and sulfite;B. quaternary salts of the above fatty tertiary amines;C. alkali metal salts of fatty acids containing 15-22 carbon atoms; and,D. alkyl or alkyl aryl sulfates and sulfonates containing 8-22 carbon atoms.The above system yields latices of small particle size having improved storage stability.

Abstract: Oil-in-water type emulsions of bis trichloromethyl sulfone which can be made from dimethyl sulfide and sodium hypochlorite. Emulsification is achieved by using the by-product aqueous brine solution from the formation reaction thereby avoiding the ecological problem of brine waste disposal and resulting in a simple one-pot type emulsion preparation procedure. The technique is also particularly well adapted to making mixed biocide concentrate formulations containing emulsified bis trichloromethyl sulfone.

Abstract: A series of microbicides which show 1- and 24-hour kill, 48-hour inhibition, and satisfactory simulated cooling tower inhibition against microorganisms such as bacteria, fungi, and algae prevalent in aqueous systems. The compounds are (2-hydroxy R) polyamines produced by reacting an R substituted alkylene oxide utilized in 1-2 mole quantities and reacted with a molar amount of an alkylene polyamine. The R substituent on the alkylene oxide is preferably alkyl where the chain length may be C.sub.6 -C.sub.20 as in epoxy alkanes, which may be straight or branched, saturated or unsaturated. The R substituent may also be aryl, aralkyl, or alkaryl, such as styrene oxide. The compounds are known as mono and bis (2-hydroxy R) polyamines depending upon whether 1 or 2 moles of the alkylene oxide are utilized. Protection in simulated cooling tower operation is achieved by dosages ranging as low as 1 ppm with an effective dosage range of 1-100 ppm.