Abstract: Disclosed is a polymer and its preparation by reacting part of the monomers in the reactor in such a way as to obtain a high molecular weight product, and reacting at least one other portion of the monomer in the same reactor in such a way as to obtain at least one low molecular weight fraction. The products are useful in contact adhesives, particularly when blended with an aminoplast or phenoplast as a tackifier and crosslinker, and with a thickening agent such as polyvinyl alcohol.

Abstract: Disclosed are contact adhesives, containing aqueous polymeric latexes, particularly acrylic latexes. Contact adhesives are adhesives which dry to a non-tacky state but which will adhere to another surface of the same dried adhesive. A unique feature of the adhesives is that the polymer used therein has an extremely wide range of molecular weights with substantial proportions of the product having a low molecular weight and substantial portions having a very high molecular weight, preferably with fairly uniform progression from low molecular weight to high molecular weight. However, blends of a low molecular weight fraction and a high molecular weight polymer may also be used. The preferred procedure is to prepare an emulsion polymer by reacting part of the material in the reactor in such a way as to obtain a high molecular weight product and to react at least one other portion of the monomer in the same reactor in such a way as to obtain at least one low molecular weight fraction.

Abstract: This invention relates to novel compounds of the formula ##STR1## wherein R.sup.1 is lower alkenyl or lower alkynyl; R.sup.2 is lower alkenyl, lower alkynyl or cycloalkyl; R.sup.3 is hydrogen; R.sup.4 is alkyl, cycloalkyl or lower alkoxycarbonylalkyl or R.sup.2 and R.sup.3 are joined to form dimethyleneoxy (i.e. --CH.sub.2 OCH.sub.2 --) or R.sup.3 and R.sup.4 taken together with the nitrogen to which they are attached, form a 5- to 6- membered heterocyclic ring, compositions containing said compounds and a method of employing said compounds as arthropod repellents.

Abstract: Methacrolein is produced by the catalytic vapor phase oxidation of isobutylene (including compounds converted to isobutylene). The catalyst has the following formula: Mo.sub.a P.sub.b Fe.sub.c Co.sub.d Ni.sub.e Bi.sub.f Te.sub.g Sb.sub.h Cs.sub.i Zr.sub.j X.sub.k O.sub.x wherein a-k represent the number of atoms of the particular element depicted, X is another element and x is the number of oxygens present.

Abstract: Disclosed herein are certain novel compounds which are most properly designated as 3-isothiazolones. These compounds and compositions containing them exhibit a broad spectrum of biocidal properties and are particularly effective for the control of microorganisms.

Abstract: The method of modifying latex paints for maintenance paint applications, primarily on iron or steel industrial and transportation structures, in order to provide both short term and long term corrosion resistance, and the resulting composition, are described. Two types of corrosion encountered in painting ferrous surfaces with latex paint are: (1) flash rusting which occurs as a result of contact with the water from the latex and results in rust bleed-through at the time the paint is drying, and (2) rust bleeding, which may occur over a period of months or years. It has now been found that the benefits of both water soluble corrosion inhibitors, for preventing flash rusting, and water insoluble corrosion inhibitors, for minimizing blistering and rust bleeding, are achieved by utilizing a soluble complex of a polyvalent metal, a volatile complexing agent, and a corrosion inhibiting anion. This complex may be represented by the formulaM(Z).sub.

Abstract: The method of modifying latex paints for maintenance paint applications, primarily on iron or steel industrial and transportation structures, in order to provide both short term and long term corrosion resistance, and the resulting composition, are described. Two types of corrosion encountered in painting ferrous surfaces with latex paint are: (1) flash rusting which occurs as a result of contact with the water from the latex and results in rust bleed-through at the time the paint is drying, and (2) rust bleeding, which may occur over a period of months or years. It has now been found that the benefits of both water soluble corrosion inhibitors, for preventing flash rusting, and water insoluble corrosion inhibitors, for minimizing blistering and rust bleeding, are achieved by utilizing a soluble complex of a polyvalent metal, a volatile complexing agent, and a corrosion inhibiting anion. This complex may be represented by the formulaM(Z).sub.

Abstract: This invention relates to solid nonionic crosslinked resins containing amine or phosphine borane adducts and their use as reducing agents for metal ions.

Abstract: Metal salt complexes of 3-isothiazolones and compositions containing them exhibit useful biocidal properties, including bactericidal, fungicidal, and algaecidal properties.

Abstract: This application discloses a composition and a method for catalyzing and crosslinking of a polyepoxy compound and an acrylic resin containing carboxylic acid groups, the catalyst being in the form of a metal chelate, particularly of manganese, zinc or chromium. The compositions, when substantially freed of volatile solvent and adjusted to a viscosity resembling that of gunnable caulking compositions, are particularly well adapted as a replacement for the metallic body solder used in automobile manufacture to fill out imperfections, welded joints and the like, when applied thereto and cured.

Abstract: A sulfonic acid salt of an acyloxyalkylamine is prepared by reaction of an organic acid or amino-acid with a sulfonic acid salt of an alkanolamine. Isocyanates are prepared therefrom by reaction with phosgene.

Abstract: By conducting solution polymerization in the presence of minor amounts of water, higher molecular weight polymers are obtained.

Abstract: A procedure is provided for producing a wound dressing having a crushed or uncrushed foam bonded to a woven, knit or nonwoven absorbent layer, particularly woven cotton gauze. The foam is self-bonded to the absorbent layer, i.e., no adhesive is needed to bond the foam. The foam may be applied by one of several methods. One procedure comprises applying a thin layer of foamed latex on a release medium. The dry foam, still on the release paper, is then simultaneously crushed and transfer bonded to the absorbent layer. A second method comprises applying the foam directly on the absorbent layer and crushing if desired. A third method comprises applying unfoamed material on the fabric and then causing foaming by the use of blowing agents then crushing if desired.

Abstract: Acetyl- and carbalkoxythioureidobenzophenones having a substituted amine adjacent to the thioureido radical are disclosed as having anthelmintic and antifungal activity.

Abstract: Hydrocurable compositions of a hydroxy(polyalkylenecarbonyloxy)alkyleneoxazolidine and a polyfunctional isocyanate are disclosed. The compositions are useful in forming films, paints, coatings, fibers, seamless flooring, coatings, impregnants and adhesives for natural and synthetic materials. The compositions are prepared by treating a hydroxy(polyalkylenecarbonyloxy)alkyleneoxazolidine with a polyfunctional isocyanate or by treating a bisoxazolidine isocyanate prepolymer with a polyfunctional isocyanate.

Abstract: The application discloses a mixture of high molecular weight hard resins such as polymethyl methacrylate, cellulose acetate butyrate, and cellulose nitrate containing a minor proportion of a very viscous or solid oligomer of one or more vinyl monomers such as methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, tertiary butyl methacrylate, isobutyl methacrylate, or tertiary butyl acrylate, which monomers when polymerized give a polymer which has a glass transition temperature calculated by the formula used for high molecular weight polymers to be at least 30.degree. C., and preferably at least 50.degree. C. The oligomers have a number averaging chain length of 4 to 25 mers. They have a narrow molecular weight distribution such that the ratio of the weight average molecular weight to the number average molecular weight is 2 or less, preferably less than 1.5. This ratio is referred to as the heterogeneity index.

Abstract: Hydrocurable compositions of a hydroxy(polyalkylenecarbonyloxy)alkyleneoxazolidine and a polyfunctional isocyanate are disclosed. The compositions are useful in forming films, paints, coatings, fibers, seamless flooring, coatings, impregnants and adhesives for natural and synthetic materials. The compositions are prepared by treating a hydroxy(polyalkylenecarbonyloxy)alkyleneoxazolidine with a polyfunctional isocyanate or by treating a bisoxazolidine isocyanate prepolymer with a polyfunctional isocyanate.