Heart Helping Halocarbon - Industrial & Engineering Chemistry (ACS

May 18, 2012 - Heart Helping Halocarbon. Ind. Eng. Chem. , 1960, 52 (11), pp 34A–36A. DOI: 10.1021/i650611a724. Publication Date: November 1960...
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ATTENTION?!! NEW PRODUCT PLANNERS: NEW USES FOUND FOR UNIQUE PROPERTIES OF METALLIC OXIDE PIGMENTS You ordinarily think of metallic oxide pigments being used to produce coloring agents, catalysts, polishing agents and mag­ netic materials. Today, however, new pro­ duct planners and production engineers are finding that uses for the unique physical and chemical properties of metallic oxides are surprisingly far afield from traditional usages. Below is a review of their characteristics. Look them over. You may get the germ of an idea which will lead you to the improve­ ment of existing products, or to the reduc­ tion of new product manufacturing costs. Should an application suggest itself . . . let us know. We'll be glad to cooperate with you in exploring the possibilities. Address Department 2, C. K. Williams & Co., 640 N. 13th St., Easton, Pennsylvania. PROPERTIES

CHARACTERISTICS

Pure Red Iron Oxides

Fe^Os-99.5% SpG.-5.15 Color—Salmon to purplish red

Pure Yellow Iron Oxides

Fe20 3 H 2 0-99% SpG.-4.03 Color—Lemon to dark orange

Pure Black Iron Oxides

FeaOi-96% min. SpG.-4.96 Color—Blue Black

Pure Chromium Oxides (and Hydrates)

Cr203-99% SpG.-5.20 Color—Light to dark green

Natural Oxides—Ochers, Umbers, Siennas, Metal­ lic Browns, Red Oxides

Wide range of ferric oxide content and red, yellow and brown colors

Venetian Reds

FeaOa-40% SpG.-3.45 Color—Light to medium red

Cuprous Oxide

CuaO-97% min.

Extenders—Barytes, Calcium Carbonate, Calcium Sulfate, Silica

Wide range

C. K. WILLIAMS & CO. E. St. Louis, III. Easton, Penna. Emeryville, Calif.

Composition: The basic col­ ors of the iron and chro­ mium oxides are determined by chemical c o m p o s i t i o n . Reds are ferric oxide (Fe2O.i); yellows, hydrated ferric oxide (FeaOa.HnO); blacks, ferro-ferric oxide (FesOO; and greens, chromic oxide (Cra Ο»)· All these compounds are chemically stable and light permanent. Particle Shape: Physical properties such as oil ab­ sorption and suspension characteristics are depend­ ent on particle shape, con­ t r o l l e d by m a n u f a c t u r i n g processes. Size: Color range is con­ t r o l l e d by p a r t i c l e s i z e average size increases as color darkens. Uniformity of size determines brightness. Purity: Freedom from im­ purities is essential for su­ perior pigment properties and to prevent deleterious effects in end-products. Con­ trol of soluble salts, man­ ganese and copper content are an important part of the Williams' manufacturing op­ eration.

I/EC

REPORTS

and if it is too hard, it will damage expensive floor coverings. With the introduction of the new fall styles, a heel lift that eliminates these problems made its appearance. Called Silent Step, the new lifts are made of an unusually tough urethane rubber developed by D u Pont. Adiprene will often outwear the soles of shoes on which the lifts are used. It eliminates the "feather­ ing" problem—the spreading that causes lifts to snag stockings, or become caught, loosened, and lost. Because of its resiliency, the Adi­ prene lift cushions and softens the striking power of ladies wearing stiletto heels—a 112-pound woman can exert the equivalent of 3000 to 4000 p.s.i. through her heel. In addition to preventing gouging and puncturing of floor coverings, the cushioning action has a comfort feature, too, since the lifts act as shock absorbers on hard surfaces. Adiprene urethane rubber, which combines toughness and resilience with load-carrying ability and abra­ sion resistance, was commercially introduced last year by Du Pont. As the fall season rolled around, some thirty ladies' shoe manufac­ turers were using the material in their heel lifts.

Heart Helping Halocarbon ΓΛ.

WELCOME TRANSFUSION to open-

heart surgery technique has come about with a piece of equipment m a d e from a versatile construction material, Minnesota Mining and Manufacturing's Kel-F plastic. Utilization of the material is in the filtering apparatus employed in the combination heart-lung facsimile ma­ chine used in a great number of delicate cardiac operations. Glass and other materials had been used previously in this type of work, but several shortcomings m a d e the operation much too complex because of cold sterilization, siliconing, warp­ ing, fracturing, etc. Transparency is a must in the filtering system, be­ cause the filtering operation must be observed in order to keep a constant check on air bubbles which can cause (Continued on page 36 A)

WILLIAMS COLORS

P^mmJlJ Itch/weuM attt&but "

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PIGMENTS

Circle No. 7 on Readers' Service Card

34 A

INDUSTRIAL AND ENGINEERING CHEMISTRY

Circle No. 52 on Readers' Service Card

Problem:

To cut cost of conveying, storing and blending flour

I/EC

REPORTS A N D

air-embolism in the patient. T h e filtration is actually done with a 60-mesh stainless steel screen, held together by the Kel-F disks containing a specially treated "window" of Kel-F. Major advantages of this type of construction are its resistance to thermal shock and its ability to withstand high-temperature steam

INTERPRETS

autoclaving in conventional hospital sterilizing equipment. Fracturing, softening, and warping of the 3-M product are nonexistent even after hundreds of sterilizations. Dr. Alvin A. Bakst of New York, who dreamed u p the idea for this filter, has performed many successful open-heart operations calling for the tedious outside heart-lung equipment.

Space Cocoons for Orbiting Astronauts Proposed satellite life jacket—formed of foamed resin during free fall—could permit re-entry to atmosphere

Solution: SPROUT-WALDRON

PNEU-FLO® SYSTEM With just one man on each shift, the C. F. Mueller Company unloads, blends and distributes 125,000,000 lbs. of flour a year at its six-story plant in Jersey City. SproutWaldron's bulk handling and Pneu-Flo positive pressure system recently i n s t a l l e d has saved more than 25,000 square feet of floor space, reduced handling costs by $150,000 per year, freed more than $40,000 worth of equipment, simplified close check weighing of incoming raw materials, increased safety and reduced housekeeping and maintenance. The system unloads and conveys to storage a minimum of one carload of flour in four hours; provides maximum diversity of storage ; sizes all incoming material at a rate equal to or greater than the unloading rate ; transfers the material at rates of 30,000 lbs. per hour. The full story of this reliable pneumatic handling system is told in Bulletin 1-57. Copies are available on request. CW/105

SPROUT-WALDRON Muncy, Pennsylvania Size Reduction · Size Classification · Mixing Bulk Materials Handling · Pelleting Circle No. 53 on Readers' Service Card 36 A

Space man "spins" plastic foam cocoon for fast, safe return from ailing space ship. Vehicle protects him from heat of re-entry

^ • N E of many types of emergencies which space pioneers may face in the next few years is a fast return to earth from a disabled manned satellite. A plastic-foam "cocoon," visualized by research engineers at General Electric's Missile and Space Vehicle Dept., in Philadelphia, could be an answer to the problem of getting back to terra firma in a hurry. Foamed of polyurethanes (or improved modifications) during free fall, the cocoon would protect the spaceman from heat of atmospheric friction during re-entry and then cushion him against the moderate shock of a parachute landing. After this, the h u m a n meteorite would

INDUSTRIAL AND ENGINEERING CHEMISTRY

peel out of his covering and await rescuers guided to him by automatic radio beacon. T h e simplest type of cocoon system is a satellite life jacket known as the M O O S E (Man O u t of Space Easiest). Here, the astronaut—in a space suit with attendant oxygen supply, recovery aids, a n d survival gear—dons (or is already wearing) a very loose plastic bag. Straps or cords assure his proper position inside his placental pouch. T o this he attaches tanks containing foaming plastic and mixer. T o deorbit, he takes a retrorocket package, visually orients himself to earth, and measures the altitude a n d {Continued on page 38 A)