NEW CHEMICALS AND SPECIALTIES - C&EN Global Enterprise

Nov 5, 2010 - Called Darex Everflex, the copolymer can replace polyvinyl acetate in regular Formulations for adhesives and coatings. The company says ...
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NEW CHEMICALS AND SPECIALTIES Sodium Dioctyl Sulfosuccinate Commercial quantities of sodium dioctyl sulfosuccinate are being produced b y Quaker Chemical Products Corp. This material, maxketed u n d e r the brand name of Quaker Dianol F-50, is offered as a faimtly colored, low* viscosity solution containting 509r active material. T h e manufacturer suggests it for use as a dispersing agent in paint formulations, constituent in printing inks, dispersing a g e n t in emudsion polymerization, and wett i n g agent in teNtile finishing baths. CS 1

Internally Plasticized Copolymer Eliminates Need f o r Plasticizers A n internally plasticized vinyl acetate copolymer, which i s said to eliminate probl e m s inherent in t h e compounding of polyvinyl acetate· with chemical plasticizers. is b e i n g produced b y D e w e y and Ahny Chemical C o . Called Darex Everflex, the copolymer c a n replace polyvinyl acetate in regular Formulations for adhesives and costings. T î i e company says its permanent plasticity eliminates the need for additional plasticizers. CS 2

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Aluminum Flux. A noncorrosive flux for aluminum joining has been developed by Euteetic Welding Corp. T h e flux, Eutector FLux 190NG, is said t o lower surface tension and t o provide improved wettability. Tlhe manufacturer says it completely eliminates corrosion caused by t h e absorpt i o n of w a t e r from the atmosphere since it is nonhygroscopic. CS 3 Resin. A. concentrated resin raw material, composed of 6 1 % formaldehyde and 2 4 % urea i n a water solution, is produced b y Allied Chemical & D y e Corp. The solut i o n , UF Concentrate 8 5 , will enable manufacturers t o charge larger quantities of resin-forming ingredients t o a kettle since a smaller aariount of water is used, accordi n g to t h e manufacturer. CS 4 Galvanizing P a i n t . A metallic zinc coating for/ iron and steel, Glopane Stovimg, w h i c h can be applied b y normal stoving technique is offered by Corrosion, L t d . T h e concentration of metallic zinc i n the coating is 9 3 % , by weight of the d a y coating. According t o the manufacturer, it is not necessary for the surface to b e given a n y chemical pretreatment. CS 5 Seed Disinfectant. Dust problems while treating s e e d or h a n d l i n g it afterwards are s a i d to t>e eliminated- w h e n using the double strength ethyl mercury seed disinfectant formulated b y Du Pont. Ceresan 31

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For further information on any item or process mentioned here, see coupon on page 3220 M-2X is applied in a liquid mixture or slurry which dries on t h e seed. It is recomm e n d e d by D u Pont for control of seedborne and soil-borne organisms which attack wheat, rye, barley, oats, sorghum, cotton, and flax. CS 6 Molding C o m p o u n d s . Two urea-formald e h y d e molding compounds a r e offered by American Cyanamid. Beetle C-4980 Brown Molding C o m p o u n d is recomm e n d e d for standard compression molding. It is said to b e ideal for applications requiring good electrical properties. Beetle Molding Compound is a special grade urea designed to meet t h e requirements for plunger and transfer molding. Both materials are produced in granular form. CS 7

with DOW CORNING

ANTIFOAM A Use productive capacity n o w w a s t e d on foam; cut proc­ essing time w / f f i D o w Corning Antifoam A, the silicone defoamer that w o r k s at concentra» tions in the range of:

Insulating Resin. A silicone resin, SR17, which can b e used for a variety of insulating applications is offered by General Electric. Uses for this insulating varnish include coating glass cloth for Navy power cable and class H insulation, providing a tough b o n d for flexible mica tapes and coil wrappers, and impregnating asbestos for layer insulation. Its properties also indicate use as a resin base for protective and decorative paints requiring heat and weathering resistance, the company says. CS 8

3 ppm A in recirculating cooling brines 2.5 ppm 6 in bottling soft drinks 2 ppm à in varnish cooking 200 ppm & in textile resin backings 0.4 ppm 4 in steel pickling baths 6 Effective at remarkably low concentrations in a wide variety of foamers, Dow Corning Antifoam A compound is harmless physiologically. It can be used as received, mixed with one of the foaming ingredients or dispersed in a solvent for industrial applications.

P u t t y . Charlotte Chemical Laboratories, Inc., offers a p u t t y which is said to withstand most mineral acids, gases, and water. Charlab Putty forms a crust on the outside and remains moist and plastic on t h e inside. According to the manufacturer, it will withstand temperatures u p to 1000° F . for a reasonable time. It is suggested for use as packing material for expansion joints and to hold removable sections in denitrating towers. CS 9

6 Equally versatile and more easily dispersed, Dow Corning Antifoam AF Emulsion is a water diluta b l e defoamer containing 3 0 % Antifoam A. Originally designed for use in the food processing industries, Dow Corning Antifoam AF Emulsion has a wide field of industrial usefulness.

Resin. A fast-curing polyester resin, 1C-514 Polyester, is offered to fabricators of reinforced plastics by Tnterchemical Corp. This resin is said to take a full 1.5 minutes off the gel time and approximately 2 minutes off the cure time of conventional polyesters. It is formulated for use with glass fiber reinforcement, b u t m a y be used with other Allers and reinforcement materials, the company says. CS 10 Metal C l e a n e r . Detrex C o r p . has introduced a metal cleaner, Detrex 6 3 , which is specially formulated for use in d i e vitreous enameling industry. It is described as a medium-high alkaline compound containing very high wetting a n d penetrating properties. According to Detrex, it will emulsify large quantities of mineral oils and greases and keep them in a state of suspension. CS Π

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