Abstract: Disclosed is a highly efficient continuous method for the aqueous extraction of water-soluble oxidation catalyst material from a residue such as that generated in the production of dimethyl terephthalate from p-xylene by the molecular oxygen oxidation and methanol esterification process. In the method the desired end product is an aqueous solution of the catalyst material. The residue to be extracted is established in finely dispersed condition in part of the aqueous solution at a weight ratio of aqueous solution to residue of above about 1:1 and maintained in that condition for a length of time sufficient for maximum transfer of catalyst material from the residue to the aqueous solution to take place. The resulting dispersion then is separated in a phase separation zone into an aqueous phase and an extracted residue phase. The separated aqueous phase is withdrawn from the phase separation zone as the aqueous solution.

Abstract: Thermoplastic elastomeric block copolymers having the general formula (AB).sub.n A, wherein each A is a crystalline polypropylene block, each B is a random ethylene-propylene copolymer block and n is an integer from 1 to about 12 exhibit structural and physical properties differences in comparison to related products.

Abstract: Disclosed is an improvement in the process for making an aromatic carboxylic acid or its methyl ester from an aromatic compound having at least one methyl or formyl group bonded directly to a nuclear carbon atom of the aromatic ring. The process comprises effecting oxidation of said compound in the liquid phase with molecular oxygen or a gas containing the same with a catalyst comprising a heavy metal compound, and in the substantial absence of an aliphatic carboxylic acid as a solvent, whereby a reaction mixture comprising the acid is formed. If the ester is desired, the acid then is esterified with methanol. The improvement comprises carrying out the oxidation in the co-presence of a lithium compound at a concentration of 0.1-10 moles per mole of heavy metal compound. The lithium compound is at least partly soluble in the reaction mixture or reacts with an acid component of the reaction mixture to form a lithium compound soluble in the reaction mixture.

Abstract: Disclosed is partially hydrolyzed, DMT process residue. Also disclosed is the reaction product of propylene oxide and the partially hydrolyzed, DMT process residue. The reaction product is useful as a polyol reactant in the preparation of urethane foams.

Abstract: Disclosed is a composition comprising crystalline polypropylene, a hydrogenated copolymer of vinyl toluene and alpha-methyl styrene, and low density polyethylene, which composition has improved extrudability compared to polypropylene alone. Also disclosed are a coated substrate in which the coating is said composition, and a method of making a coated substrate, which comprises extrusion coating the substrate with the composition.

Abstract: Disclosed is an improvement in a method for the recovery for recycle to the cooxidation-coesterification process for the production of dimethyl terephthalate from p-xylene, air and methanol of oxidation catalyst by aqueous extraction of a distillation residue containing the same. To minimize recycle of any iron present in the residue, iron oxidant material (for example, hydrogen peroxide) is admixed in one embodiment with the residue and water in the aqueous extraction procedure, and in a second embodiment with the resulting aqueous extract. In both embodiments, if any iron is present, it is precipitated. In the first embodiment the precipitate stays with the residue. In the second embodiment the aqueous extract is separated from the precipitate.

Abstract: Disclosed is a process for the recovery of aromatic carboxylic acid or ester thereof from the residue fraction of the oxidation or esterification reaction mixture resulting from the oxidation or oxidation and esterification of an aromatic compound having at least one methyl or formyl group directly bonded to a ring carbon atom. The process comprises treating the residue fraction with hydrogen and a hydrogenation catalyst.

Abstract: An improved container is provided in which a gap in the uppermost circumferential reinforcing rib in an annular injection molded mouth portion will accommodate manual removal of a lid without the need for a tool.

Abstract: 5-Amino-5,6-dihydro-dicyclopentadiene is prepared by reacting 5-isothiocyano-5,6-dihydro-dicyclopentadiene and an aqueous caustic medium at a temperature in excess of the melting point of 1,3-bis[5-(5,6-dihydro-dicyclopentadiene)]-2-thiourea while establishing and maintaining a pressure sufficient to maintain the water in the reaction mixture in a liquid state.

Abstract: 5-Isothiocyano-5,6-dihydro-dicyclopentadiene is hydrolyzed with caustic to 5-amino-5,6-dihydro-dicyclopentadiene in a reaction medium comprising a polar organic liquid which is inert under the reaction conditions and which at least partially dissolves the reactants and products.

Abstract: Disclosed is an apparatus for exchanging heat with liquid material and particularly liquid material under superatmospheric pressure. A preferred embodiment of the apparatus comprises a pressure vessel for holding a body of the liquid material, and having an inlet and an outlet for the liquid material. Inside the vessel is an integral tube assembly for conducting heat exchange fluid into, through and out of a body of the liquid material in the vessel. The tube assembly comprises a heat exchange fluid feed header, a heat exchange fluid discharge header, and a plurality of heat transfer tubes from the feed header to the discharge header. In a preferred embodiment of the apparatus, the headers are coaxially aligned with a normally vertical axis, and are vertically spaced apart. The headers are joined to conduits passing through the top and bottom of the vessel. These conduits in combination with the vessel support the tube assembly.

Abstract: Disclosed are novel compounds of the formula ##STR1## in which when R.sup.1 and R.sup.2 are taken separately, R.sup.1 is selected independently from the group consisting of hydrogen and C.sub.1 -C.sub.7 alkyl and R.sup.2 is selected independently from the group consisting of C.sub.1 -C.sub.7 alkyl, phenyl and 2-furanyl, and, when taken together with the carbon atom to which they are attached R.sup.1 and R.sup.2 form a C.sub.3 -C.sub.8 cycloalkyl group; R.sup.3 is selected from the group consisting of C.sub.1 -C.sub.7 alkyl, allyl, phenyl, 3-halophenyl and 3,4-dihalophenyl; and R.sup.4 is selected from the group consisting of C.sub.1 -C.sub.7 alkyl, allyl, cyclohexyl, phenyl, halophenyl, tolyl, anisolyl, nitrophenyl, 3,4-dihalophenyl, 1-naphthyl, p-toluene sulfonyl, trihalomethylphenyl and 2,6-dinitro-4-trihalomethylphenyl. These compounds have herbicidal activity.

Abstract: Disclosed is the stabilization of thermally unstable, fresh dimethyl terephthalate of at least 99.8 weight % purity, free of alkali metal compound material, and produced by the cooxidation-esterification process. Stabilization is effected by incorporating therein a stabilizing quantity of alkali metal acetate material having no significant concentration of either phosphonic acid moiety or phosphite moiety.

Abstract: Disclosed is the herbicidal use of compounds of the formula: ##STR1## in which R.sup.1 is H or CH.sub.3, and, when R.sup.1 is H, R.sup.2 is selected from the group consisting of CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.3, ##STR2## and, when R.sup.1 is CH.sub.3, R.sup.2 is selected from the group consisting of CH.sub.2 --CH.sub.2 --CH.sub.3 and ##STR3## Compounds of the formula in which, when R.sup.1 is H, R.sup.2 is selected from the group consisting of CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.3, ##STR4## and, when R.sup.1 is CH.sub.3, R.sup.2 is CH.sub.2 --CH.sub.2 --CH.sub.3, are new.

Abstract: Disclosed is a process for the catalytic hydrogenation of the aldehyde content of molten aldehydic dimethyl terephthalate (DMT). The process comprises first dissolving in the molten aldehydic DMT a quantity of molecular hydrogen sufficient to hydrogenate at least a substantial portion of the aldehydic content, and then contacting the molten aldehydic DMT with its dissolved hydrogen content with a hydrogenation catalyst for a period of time sufficient for reaction of the dissolved hydrogen with the aldehydic content to take place, but insufficient for substantial ring hydrogenation to occur.

Abstract: Disclosed is a grease base stock characterized by outstanding thermal and oxidation stability, low volatility, and high viscosity index. It comprises a blend of (1) a normally liquid pentaerythritol ester product consisting essentially of pentaerythritol material selected from the group consisting of pentaerythritol and polypentaerythritols, completely esterified by C.sub.4 -C.sub.12 alkanoic acid material, and (2) a neopentyl glycol ester product having a substantially higher 77.degree. F. viscosity than the pentaerythritol ester product and consisting essentially of the reaction product of neopentyl glycol, C.sub.4 -C.sub.12 alkanedioic acid material and C.sub.4 -C.sub.12 alkanol material substantially at mole ratios of n:(n+1):2, n being a whole number in the range from 1 to 12. The weight ratio of the pentaerythritol ester product to the neopentyl glycol ester product is generally in a range from about 2:3 to about 9:1.

Abstract: Disclosed is the stabilization of thermally unstable, fresh dimethyl terephthalate of at least 99.8 weight % purity, free of alkali metal compound material, and produced by the cooxidation-esterification process. Stabilization is effected by incorporating therein a stabilizing quantity of alkali metal compound material having no significant concentration of either phosphonic acid moiety or phosphite moiety.

Abstract: Disclosed are novel compounds of the formula ##STR1## in which when R.sup.1 and R.sup.2 are taken separately, R.sup.1 is selected independently from the group consisting of hydrogen and C.sub.1 -C.sub.7 alkyl and R.sup.2 is selected independently from the group consisting of C.sub.1 -C.sub.7 alkyl, phenyl and 2-furanyl, and, when taken together with the carbon atom to which they are attached R.sup.1 and R.sup.2 form a C.sub.3 -C.sub.8 cycloalkyl group; R.sup.3 is selected from the group consisting of C.sub.1 -C.sub.7 alkyl, allyl, phenyl, 3-halophenyl and 3,4-dihalophenyl; and R.sup.4 is selected from the group consisting of C.sub.1 -C.sub.7 alkyl, allyl, cyclohexyl, phenyl, halophenyl, tolyl, anisolyl, nitrophenyl, 3,4-dihalophenyl, 1-naphthyl, p-toluene sulfonyl, trihalomethylphenyl and 2,6-dinitro-4-trihalomethylphenyl. These compounds have herbicidal activity.

Abstract: Disclosed is a process for making a C.sub.1 -C.sub.7 aliphatic hydrocarbyl ester of an N-[2,6-(C.sub.1 -C.sub.7 alkyl)phenyl] .alpha.-amino-carboxylic acid from the corresponding 2,6-di(C.sub.1 -C.sub.7 alkyl)aniline and the corresponding chlorocarboxylic acid ester, which comprises effecting with a catalytic quantity of di(C.sub.1 -C.sub.7 alkyl)aniline hydrochloride the reaction of said aniline and said ester.

Abstract: Disclosed are novel metal salts of 1,1,5,5-tetrasubstituted dithiobiurets of the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4, when taken independently of each other are selected from the group consisting of C.sub.1 -C.sub.18 alkyl, C.sub.6 -C.sub.12 aryl, C.sub.3 -C.sub.12 cycloalkyl, and these radicals substituted by at least one member of the group consisting of hydroxyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.8 acyl, halo and nitro, and R.sup.1 and R.sup.2, when taken together along with the nitrogen to which they are bonded, and .?.R.sub.3 .!. .Iadd.R.sup.3 .Iaddend.and R.sup.4 when taken together with the nitrogen to which they are bonded, are selected from the group consisting of N-morpholinyl, N-piperidyl, N-pyrrolidyl and N-aziridinyl. The compounds are useful as population control agents.