Abstract:
A polymerization process is described in which impact resistant methacrylonitrile homopolymers and copolymers are prepared in the presence of a diene rubber by free radical polymerization at improved rates by conducting the polymerization in aqueous emulsion in the presence of some preformed seed polymer having small particle size.
Abstract:
OIL-SOLUBLE COMPOUNDS ARE PREPARED BY REACTING A NITRO-NITRITO ALKANE CONTAINING AT LEAST TEN CARBON ATOMS, AN ALKYLENE POLYAMINE, AND SULLFUR IN THE MOLAR RATIO OF FROM ABOUT 1,0:0.03:1.0 TO ABOUT 1,0:0.5:2.0, RESPECTIVELY, COMPOUNDS SO FORMED ARE USEFUL ANTI-RUST, ADDITIVES IN OLEAGINOUS COMPOSITIONS.
Abstract:
POLYMERIC MATERIAL, WITH GAS INJECTION, IS CONTINUOUSLY EXTRUDED TO FORM A CONTINUOUS WEB OF FOAM. THE WEB IS THEN DIRECTLY LAMINATED AND THE ARTICLE OF MANUFACTURE IS DIRECTLY THERMOFORMED FROM THE LAMINATED WEB. OPTIONALLY, THE WEB SURFACE CAN BE PRINTED UPON BEFORE LAMINATION. THE PROVIDES AN ARTICLE HAVING A CELLUAR-STRUCTURE POLYMERIC SUBSTRATE HAVING AN IMPRINTED SURFACE PROTECTED BY A LAMINAR-LIKE COATING.
Abstract:
OIL, SOLID PARTICLES SUCH AS BIOLOGICAL SLIME AND FLOATING DEBRIS, ETC., ARE REMOVED FROM WATER BY AN APPARATUS INCLUDING ENDLESS CHAIN MEANS MADE UP OF A SERIES OF INTERCONNECTED FORAMINOUS CHAMBERS HOLDING A REGENERABLE POROUS FILTER MATERIAL SUCH AS POLYURETHANE. PREFERABLY, THE FILTER MATERIAL HAS AN OUTER LARGE PORE SECTION AND AN INNER SMALL PORE SECTION. A PLURALITY OF BUCKETS ARE ATTACHED TO THE CHAIN MEANS AND, AS THE CHAIN MEANS MOVES THROUGH A CLOSED LOOP PATH, THESE BUCKETS CATCH DEBRIS AND DUMP IT INTO A HOLDING BIN. SIMULTANEOUSLY, THE FILTER MARIAL ABSORBS SURFACE AND SUBSURFACE OIL AND THE LIKE FROM WATER TRAVELING THROUGH THE FILTER MATERIAL. THE FILTER MATERIAL IS REGENERATED BY SQEEZING THE FILTER MATERIAL TO RELEASE THE OIL.
Abstract:
IMPROVED ION-CONTAINING AND CONDUCTIVE MEDIUM FOR ELECTROCHEMICAL REACTION APPARATUS COMPRISING PHOSPHORIC ACID AND/OR ARSENIC ACID AND WATER. THE PRINCIPLES OF THIS INVENTION, FOR EXEMPLARY PURPOSES, WILL BE DESCRIBED IN REFERENCE TO A FUEL CELL FOR DIRECTLY CONVERTING CHEMICAL ENERGY INTO ELECTRICAL ENERGY, IT BEING UNDERSTOOD, HOWEVER, THAT THESE PRINCIPLES ARE APPLICABLE TO OTHER TYPES OF ELECTROCHEMICAL REACTION APPARATUS AS WELL.
Abstract:
The method comprises introducing a petroleum hydrocarbon stream containing metals, hydrocarbons having coke-forming tendencies, and residual-type hydrocarbons into the fractionating column associated with a catalytic cracking unit of the refinery. The introduction of the petroleum hydrocarbon stream into the fractionating column is accomplished at a point in the fractionating column above which substantially all of the recycle material is withdrawn from the fractionating column; it may comprise the injection of the petroleum hydrocarbon stream into the baffle section of the fractionating column. The petroleum hydrocarbon stream may be a crude oil, may be desalted, and may have been treated for the removal of any amount of water which is contained therein and which would appreciably and suddenly increase the amount of liquid water being added to the fractionating column.
Abstract:
A SEALANT COMPOSITION SUITABLE FOR HEAT SEALING ELEC TRICAL CONDUITS YET NOT FORM A PERMANENT BOND WITHOUT HEAT SEALING, IS MADE FROM ABOUT 65 TO 85 WEIGHT PERCENT OF ATACTIC POLYPROPYLENE OR ATACTIC PROPYLENEETHYLENE COPOLYMER, 5 TO 15 WEIGHT PERCENT OF CARBON BLACK, 5 TO 10 WEIGHT PERCENT OF ASPHALT AND 5 TO 20 WEIGHT PERCENT OF PETROLEUM MINERAL OIL.
Abstract:
A non-destructive test is provided for determining the ability of a metal coating to adhere to the plastic substrate of a metallized plastic article comprising determining the difference between two separate contact angle values, the first being obtained by measuring the contact angle formed by a drop of liquid resting on a specimen plastic substrate prior to etching said substrate and the second being obtained by measuring the contact angle formed by a drop of liquid resting on an etched plastic substrate. Contact angle values are easily measurable parameters which indicate platability and therefore are valuable in the electroplating of plastics.
Abstract:
Polyamide-imide compositions useful for film preparation are disclosed. These compositions comprise the polyamide-imide polymer, a solvent system for said polymer, and one of the following stripping agents: phosphoric acid, phosphites, esters of phosphoric acid and strong organic acids.
Abstract:
A process for preparing novel carboxylic acids which process comprising heating aromatic compounds which do not readily undergo electrophylic substitution with 3-carboxyphenyl sulfonyl chloride at a temperature of about 150* to 350* C. for a period of about 0.25 to 24 hours in the mole ratio of 4:1 to 20:1.