CHARLES E. KEED

Cvaluation of Silicone Release igents for Shell Rlolding Process COURTE8V DOW CORNINQ DORP

2323

COMPOUNDING PRINCIPLE§ OF SILICONE RUBBERS C. W. Pfeifer . , , , , , , , , , , , , ,

SILICONE RESINS I N TEXTILES . . . . . . Fred Fortess

2325

SILICONES I N NAVAL SHIPBOARD ELECTRICAL EQUIPMENT H. P. Walker a n d G. M. Van Lear . , , . . , , , , 2349

SILICONE FLUIDS C. C. Currie . ,

2331

SILICONE MOLDING R E S I N S H. N. Homeyer, J. H.Preston, S . Casapulla, and E. M. Beekman

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2349

2334

SILICONE OILS FOR LUBRICATING STEEL VERSUS STEEL Gordon C. Gainer , , , . . . . . , , . . , , . , . .

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2355

STRUCTURE AND P R O P E R T I E S R. R. McGregor

SlLICONES IN PROTECTIVE COATINGS M. A. Glaser . , , , . , . , . . .

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2342

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of all the groups of industrially important polymers, silicones assume the widest variety of forms and g~ into the broadest range of applications. Silicone resins, rubbers, fluids, emulsions, greases, a i d water repellents are among the many products representative of this new group of engineering materials which have evolved out of the unique characteristics of organosilicon cornpounmd~.a i d are now influencing the product design, opera Ling, and maintenance practices o f man? different industries. This symposium was organized hj t h e Divisions of Industrial and Engjneetng ( h e m i s t y arid Paint, Plastics, and Printing La& Chemistry to review the latest developments in the more import a n t and rapidly growing types of sillicoiae applications. These applications and the silicone properties making them possible become more significant against the background of the introductory arise from the basic paper which shows ~ Q W the? nature of the organic chemistry o f hilieon, partic.ulasly from the nature of the siloxane bond, and the type, n u n h e r , and arrangement of suhslituent organic groups on silicon. Relative Sizes of Equivalent Coil Spring and

CHARLES E. KEED 2322

K n i t that c t i l i a e s Compressibility of S%rone Fluid

INDUSTRIAL AND ENGINEERING CHEMISTRY

Vol. 46,No. 11