Abstract: Salicylate esters have been found to be suitable blocking agents for polyisocyanates, enabling preparation of hydroxy terminated polybutadiene based polyurethane bound propellant grains having extended pot life. Unblocking occurs readily at normal propellant cure temperatures, allowing normal cure rates.

Abstract: This invention relates to an improved process for the production of urethanes (i.e. carbamic acid esters) by reacting organic nitro compounds with carbon monoxide and organic compounds containing at least one hydroxy group in the presence of a unique catalyst system. The catalyst system consists of palladium or a palladium compound and iron oxychloride or a mixture of iron compounds containing iron oxychloride.

Abstract: Compounds of the formula ##STR1## wherein R is aliphatic hydrocarbyl, alicyclic hydrocarbyl or aryl suitably substituted, if desired, or a heterocyclic group, R.sup.1 is hydrogen or alkyl, R.sup.2 is alkyl or alkoxy, R.sup.3 is ##STR2## wherein a is 0 or 1, R.sup.4 is hydrogen or CW'.sub.3, the W' being hydrogen or halogen, Z is halogen and X is halogen, hydroxy, alkoxy, acetoxy, carbethoxyalkoxy, phenoxy, alkylthio, carbethoxyalkylthio, phenylthio, phosphono, dithiophosphonoxy, phosphoramido, isocyanato, isothiocyanato, alkyl- and dialkylthiocarbamoylthio, alkyl- and dialkylcarbamoyloxy, alkylsulfonyl, etc., have herbicidal activity.

Abstract: An aromatic urethane (e.g., methyl naphthyl urethane) is prepared by reacting an aromatic hydroxy compound, such as alpha-naphthol, with an aliphatic urethane, such as dimethyl urethane, in the presence of a catalyst consisting of a Lewis acid.

Abstract: A process for the cross-linking or chain extension of hycrocarbon polymers which contain ethylenically unsaturated groups which comprises forming an intimate mixture of the polymer with a carbamate of the formula: ##STR1## WHEREIN R.sub.1 is an optionally substituted hydrocarbyl radical, m is an integer, and A is H or an optionally substituted hydrocarbyl radical of valency m, and subjecting the mixture to heat.Novel compounds of preferred use include those in which m=1 and at least one of R and A is alkyl or 7 or more carbon atoms, or in which m=2 and A is phenylene or alkylene or alkenylene of 2 to 4 carbon atoms.

Abstract: Carbamates are manufactured by reaction of alcohols with urea in the presence of ion exchangers containing nickel.The products are starting materials for the manufacture of textile finishing agents, dyes and plant protection agents.

Abstract: A method of preparing an N-substituted carbamate comprising reacting by heating in sulfolane at a temperature ranging from about 65.degree. C. to about 100.degree. C. (1) an alkali metal cyanate, (2) at least one sulfolane-soluble organic halide of the formula RX wherein X is halogen and R represents a radical selected from the group consisting of alkyl, alkenyl, aralkyl and aralkenyl, and (3) at least one sulfolane-soluble non-aromatic monohydric or polyhydric alcohol, and isolating the N-substituted carbamate thereby produced from the resulting reaction mass.

Abstract: Compounds which contain azo or peroxide linkages as well as the radical of an ultraviolet light stabilizing group are described. These compounds function as polymerization initiators which cause an ultraviolet light stabilization group to be chemically bound to the polymer.

Abstract: Novel compounds which upon heating are converted into the corresponding phenol which is a catalyst for the trimerization of compounds having isocyanato groups to form isocyanurates have the formula: ##STR1## in which N REPRESENTS AN INTEGER OF FROM 1 TO 4A represents an aromatic hydrocarbon group obtained by removing the NCO group from a monomeric aromatic monoisocyanate containing 6 - 14 carbon atoms,R.sub.1 and R.sub.2 may be the same or different and represent a C.sub.1 to C.sub.6 alkyl group or a polymethylene chain containing 4 to 8 carbon atoms which together with the nitrogen atom form a heterocyclic ring,R.sub.3 may be hydrogen, chlorine, bromine or a C.sub.1 - C.sub.18 -alkyl group.

Abstract: Compounds of the formula ##STR1## wherein R is aliphatic hydrocarbyl, alicyclic hydrocarbyl or aryl suitably substituted, if desired, or a heterocyclic group, R.sup.1 is hydrogen or alkyl, R.sup.2 is alkyl or alkoxy, R.sup.3 is ##STR2## wherein a is 0 or 1, R.sup.4 is hydrogen or CW'.sub.3, the W' being hydrogen or halogen, Z is halogen and X is halogen, hydroxy, alkoxy, acetoxy, carbethoxyalkoxy, phenoxy, alkylthio, carbethoxyalkylthio, phenylthio, phosphono, dithiophosphonoxy, phosphoramido, isocyanato, isothiocyanato, alkyl- and dialkylthiocarbamoylthio, alkyl- and dialkylcarbamoyloxy, alkylsulfonyl, etc., have herbicidal activity.

Abstract: Prostan-1-ol esters and intermediates for their preparation are described; the former compounds exhibit improved organ specificity and a longer duration of activity at lower dosages than the corresponding non-esterified prostaglandins and are useful, inter alia, in triggering abortion, inducing labor and regulating the menstrual cycle.

Abstract: A new series of substituted esters of 3-hydroxyindone compounds have been found to have exceptional miticidal and herbicidal activity.

Abstract: A new series of substituted esters of 3-hydroxyindone compounds have been found to have exceptional miticidal and herbicidal activity.

Abstract: Novel carbonic acid esters are disclosed which are useful in a process for introducing esterified carboxy-type protective groups on amino and/or imino groups in amino and/or imino group - containing compounds for the temporary protection of said amino and/or imino groups. Additionally, processes for preparing said esters are also disclosed.

Abstract: A new class of N'-(aminoacylaminophenyl) acetamidines: ##STR1## in which R.sup.1 and R.sup.2 are the same or different and represent hydrogen, alkyl, aryl or the substituted derivatives thereof or, together with the nitrogen atom to which they are attached, an heterocyclic ring; and R.sup.3 is hydrogen, alkyl, aryl, aralkyl, or a heterocyclic moiety including the substituted derivatives thereof. The products have utility as anthelmintics.The products are obtained by treating a suitable amino-acid or a carbonyl-activated amino-acid, with the appropriate N'-(4-aminophenyl)-N,N-dimethylacetamidine. In addition, the products are obtained by treating a suitable N'-(haloacylaminophenylacetamidine with an appropriate amine.

Abstract: Substituted 2-(carbamoyl)oxyimino-3-iminobutyramides and 2-(carbamoyl)oxyimino-3-iminobutyrates of the formula ##STR1## where Q is --OR.sub.4 or --NR.sub.5 R.sub.6, and A, R, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are as hereinafter defined are useful as aphicides. The compounds are made by reacting an amine with a substituted 2-hydroxyiminoacetoacetamide (or 2-hydroxyiminopropionylacetamide) or an alkyl 2-hydroxyiminoacetoacetate (or 2-hydroxyiminopropionylacetate), then carbamylating the resulting substituted 2-hydroxyimino-3-iminobutyramide (or 2-hydroxyimino-3-iminovaleramide) or 2-hydroxyimino-3-iminobutyrate (or 2-hydroxyimino)-3-iminovalerate).

Abstract: Perfluoroalkylthio glycols and esters thereof can be prepared by the free-radical catalyzed addition of a perfluoroalkylthiol to an acetylenic alcohol or ester thereof. The compounds obtained are useful intermediates for the synthesis of fluorochemicals with low free surface energies having oil and water repellent properties. In one embodiment, a perfluoroalkylthio glycol can be reacted with a diisocyanate to obtain a polyurethane containing perfluoroalkylthio groups, which polyurethanes are useful as coatings to provide oil and water repellence to textiles and as additives to plastics to provide mold-release and other desirable properties.