Abstract:
A wax modifying composition comprising the combination of (1) a Friedel-Crafts condensation product of a halogenated paraffin with an aromatic hydrocarbon and (2) an oil soluble copolymer of ethylene and a C3-C30 alpha olefin, or a terpolymer of ethylene with a C3-C30 alpha olefin and a minor amount of a nonconjugated diolefin. The copolymer and terpolymer may be improved by oxidation to form hydroperoxy materials followed by reduction to form reduced oxygenated compounds.
Abstract:
DICYANOFORMAMIDES HAVING AROMATIC MOIETIES AS NOVEL COMPOSITION OF MATTER ARE PREPARED BY THE REACTION OF A DIISOCYANATE HAVING AN AROMATIC MOIETY WITH TWO (2) MOLES OF HYDROGEN CYANIDE IN THE PRESENCE OF A CATALYST WHICH WILL NOT PROMOTE FURTHER POLYMERIZATION.
Abstract:
A HYDROCARBON-OIL SOLUBLE POLYMERIC ADDITIVE HAVING MULTIFUNCTION QUALITIES INCLUDING VISCOSITY-INDEX-IMPROVING PROPERTIES AND SLUDGE-DISPERRSING PROPERTIES IS PREPARED BY REACTING AN OIL-SOLUBLE POLYMERIC MATERIAL WHICH CONTAINS ACID OR ACID ANHYDRIDE GROUPS DISTRIBUTED ALONG THE POLYMER CHAIN WITH A HETEROCYCLIC AMINO COMPOUND UNDER CONDITIONS WHICH CAUSE THE FORMATION OF AN AMIDE OR IMIDE LINKAGE BETWEEN CARBOXYL OR CARBOXYL ANHYDRIDE GROUPS OF THE POLYMER AND THE AMINO GROUPS OF THE HETEROCYCLIC AMINO COMPOUND. THE LATTER IS CHARACTERIZED AS A HETEROCYCLIC AMINO COMPOUND OF THE PSEUDO-AROMATIC TYPE THAT HAS EITHER OXYGEN OR NITROGEN IN THE RING, HAS ONLY ONE GROUP WITH AN ACTIVE AMINO HYDROGEN, CONTAINS NO OTHER ACTIVE HYDROGEN GROUPS, AND HAS THE AMINO GROUP SEPARATED FROM THE RING BY FROM ONE TO FIVE CARBON ATOMS.
Abstract:
HETEROCYCLIC POLYMERS CONTAINING EITHER OR BOTH 4-IMINO1,3-IMIDAZOLIDINE - 2,5 - DIONE - 1,3 - DIYL RINGS AND/OR 5 - IMINO - 1,3 - IMIDAZOLIDINE -2,4 - DIONE - 1,3 - DIYL RINGS ARE PRODUCED IN THE PRESENCE OF AN ADDED CYANIDE ION BY THE REACTION OF DIISOCYANATES WITH HYDROGEN CYANIDE, BY THE REACTION OF DICYANOFORMAMIDES WITH DIISOCYANATES AND BY TEH POLYMERIZATION OF CYANOFORMAMIDYL ISOCYANATES. THE PRESENCE OF THE ADDED CYANIDE ION PRODUCES HETEROCYCLIC POLYMERS WITH SUBSTANTIALLY NO CROSSLINKING THROUGH THE IMINO GROUP OF THE IMIDAZODINE RINGS.
Abstract:
A POLYOLEFIN COMPOSITION IS STABILIZED WITH A SULFURCONTAINING ESTER COMPOUND FORMED BY REACTING A SULFURCONTAINING CARBOXYLIC ACID WITH AN ALCOHOL DERIVED FROM A RESIN ACID, E.G., TETRAHYDROABIETYL ALCOHOL, DIHYDROABIETYL ALCOHOL, DEHYDROABIETYL ALCOHOL, TETRAHYDROPIMARIC ALCOHOL, DIHYDROPIMARIC ALCOHOL, AND MIXTRUES THEREOF.
Abstract:
IMPROVED HYDROCARBON CATALYSTS ARE PREPARED BY TREATING CERTAIN ZEOLITES WITH HYDROGEN FLUORIDE. IT IS PREFERRED THAT THE HYDROGEN FLUORIDE TREATMENT BE ACCOMPLISHED AFTER THOSE PREPARATION STEPS REQUIRING CONTACT OF THE ZEOLITE WITH WATER AT HIGH TEMPERATURES. IT IS ALSO PREFERRED THAT THE ZEOLITE WHICH IS SUBJECTED TO THE HF TREATMENT HAVE A SUBSTANTIAL PORTION OF IS ALKALI METAL CONTENT REPLACED BY THE HYDROGEN ION.
Abstract:
Hydrocarbon residua boiling mostly 1,000* F. and above are catalytically hydrocracked under liquid phase conditions and novel recycle ratios to obtain a product which is predominantly an aromatic gas oil which is eminently suitable either as a solvent or as feed to commercial hydrocracking operations. Although the upper boiling limit of this gas oil may be in the range of 600*-800* F., the process is illustrated with separation into fractions boiling 650* F.- and 650* F.+. An amount of the low-boiling and high-boiling fractions are recycled so that the feed mixture to the reaction zone contains 20 percent of the lowboiling fraction, 40 percent of the high-boiling fraction, and 40 percent of fresh feed while the high-boiling fraction is recycled to extinction at a rate such that the amount present in the feed mixture to the reactor is equal to the amount in the product. 125 percent of an acyclic hydrocarbon modifier is added to the reaction mixture to act as a free radical acceptor under such conditions that is has a residence time of 1 hour or less as compared to 1 to 6 hours for the residua-recycle mixture.
Abstract:
An improved process for dewaxing petroleum oil stocks. A dual solvent consisting of an autorefrigerant and a wax antisolvent is employed to chill the petroleum oil and precipitate out the wax. The autorefrigerant is used to strip the wax antisolvent from both the precipitated wax and the dewaxed oil and may be used additionally as blow gas for the filters.
Abstract:
Cold makeup liquid normally gaseous dewaxing solvent is introduced directly into the chiller of a dewaxing plant by spraying it into the vapor space of the chiller in droplets having a size between 1,000 and 6,000 microns, which are rapidly heated by the ascending solvent vapors from the liquid solvent in the chiller thus preventing shock chilling.
Abstract:
Homopolymers and copolymers of vinyl chloride with vinylidene chloride, vinyl acetate, propylene, acrylates and methacrylates are treated as a slurry with A. A 0.1-10 PERCENT SOLUTION OF AN ALKALINE, WATER-SOLUBLE HYDROXIDE IN ORDER TO REMOVE UNDESIRABLE SIDE PRODUCTS OF POLYMERIZATION TENDING TO DEGRADE THE POLYMER, AND B. A PHENOLIC ANTIOXIDANT SUCH AS A BIS OR TRIS PHENOL OR A SALT, THIO- OR CARBOXYLIC ACID DERIVATIVE THEREOF.