CHEMICALS W a t e r Repellency Increased With N e w Silicones A family of silicones designed for use in c o m m o n c o s m e t i c products has been d e v e l o p e d b y GE's silicone products d e p a r t m e n t . D e s i g n a t e d Velvasil silicones, the c h e m i c a l s are said to permit a sharp increase in water repellency a n d protective action against detergents and m a n y other common water-borne irritants. T h e Velvasil silicones are offered in a w i d e range of viscosities and, according to c o m p a n y , m a y b e incorporated into t y p i c a l c o s m e t i c formulations without n e c e s s i t y of n e w e q u i p m e n t or revolutionary manufacturing processes. T h e silicones are stable, odorless, and colorless. C o m p a n y expects t h e m to find w i d e s p r e a d u s e in hand creams, lipstick, creams, or lotions. CS 1
New Insecticide Related To Allethrin An insecticide for controlling house Hies a n d other insects has b e e n developed b y Carbide a n d Carbon Chemicals. First s y n t h e s i z e d in Carbide's research and d e v e l o p m e n t labs at South Charleston, W . Va., t h e c o m p o u n d is
chemically r e l a t e d to allethrin. I t has been n a m e d c y c l e t h r i n . C o m p a n y says cyclethrin is synergized by readily a v a i l a b l e synergists to a f a r greater e x t e n t t h a n allethrin. It can therefore b e u s e d in oil s p a c e sprays a n d in l o w pressure aerosols. Results of field tests i n d i c a t e that treadle spray c o n c e n t r a t e s c o n t a i n i n g cyclethrin afford dairy a n d beef animais excellent p r o t e c t i o n from horse flies. Cyclethrin is a l s o m o r e effectively synergized by s u l f o x i d e and piperonyl bixtoxide t h a n allethrin for k n o c k d o w n of German roaches. Toxicity o f n e w compound t o w a r m - b l o o d e d a n i m a l s is of the s a m e order as allethrin o r the pyxethrîns. CS 2
• Aidrich C h e m i c a l is offering N raethyl - N - n i t r o s o - p - t o l u e n e s u l f o n a m i d e under t r a d e n a m e of D i a z a l d . Compound i s a stable crystalline s o l i d used for preparation o f d i a z o m e h a n e . CS3 • A-C p o l y e t h y l e n e , emulsifiable type, is offered b y A l l i e d C h e m i c a l & D y e in limited q u a n t i t i e s for e v a l u a t i o n on plant run scale. C o m p a n y says small particle s i z e , s t a b l e , clear, high-solids-
c o n t e n t e m u l s i o n s a r e readily o b t a i n e d w i t h this material. A-C polyethylene has p o s s i b l e a p p l i c a t i o n s in l i q u i d c o a t i n g s for glass, paper, b o x b o a r d , textiles, a n d leather. It m a y a l s o p r o v e useful as an i n g r e d i e n t in floor a n d s h o e polish formulations a n d o t h e r protective c o a t i n g s . CS 4 • S t a b i l i z e r for h e a v y p i g m e n t s in paint has b e e n developed b y D e h y d a g , D e u t s c h e Hydrierwerke, Dusseldorf. P r o d u c t is s a i d to h a v e h i g h surface a c t i v i t y w i t h o n l y 0 . 2 to 1.0% of it r e q u i r e d to k e e p p i g m e n t s in solution. E x c l u s i v e U . S. distributor for n e w stabilizer, A g e n t 3 1 - 1 1 , is F a l l e k P r o d ucts. CS 5 • R e a g e n t offered b y D a j a c Labs is 2,4,7-trinitrofluorenone. C o m p o u n d is a l e m o n - y e l l o w crystalline s o l i d w i t h a m e l t i n g p o i n t range of 1 7 5 . 5 ° to 176.5° C. C o m p o u n d h a s b e e n u s e d to f o r m stable, brightly c o l o r e d , sharpmelting complexes with polynuclear hydrocarbons a n d w i t h their derivatives. R e s u l t i n g c o m p l e x e s are m o r e s t a b l e and more easily f o r m e d t h a n corres p o n d i n g picrates. C o m p a n y says rea g e n t s h o u l d p r o v e of particular interest t o laboratories e n g a g e d in p e troleum, c a n c e r , and coal tar research. CS 6
• W a x d e v e l o p e d b y Petrolite is for use i n i n v e s t m e n t , or p r e c i s i o n c a s t i n g industry. D e s i g n a t e d P C - 1 3 , w a x is said to b e h a r d a n d t o u g h w i t h o u t b e ing brittle. Its solidification point is 1 6 0 ° to 1 7 0 ° F. T e s t e d in practical a p p l i c a t i o n s b y firms in i n v e s t m e n t c a s t i n g industry, c o m p a n y says w a x has b e e n f o u n d to b e superior in m o l d ing characteristics t o most o f pattern w a x e s on t h e market. CS 7
COWLES SILICATES FOR
COMPOUNDING
DRYMET anhydrous — the most highly c o n c e n trated form o f s o d i u m metasilicate. Economical, contains no water of crystallization.
DRYORTH® — anhydrous—po^verful, speedy, heavy-duty sodium orthosilicate— an economical constituent of h i ^ h p H cleaning c o m p o u n d s .
CRYSTAMET® — p e n t a h y d r a t e — f o r
FOR USE I N COMPOUNDING Floor Cleaners Laundry Products Metal Cleaners Dairy Cleaners Dishwashing Compounds General Purpose Cleaners Soap Builders Paint Cleaners
c o m p o u n d i n g w h e n l o w e r conceirtratton o f finished product is desired. Can h>e used o n medium p H j o b s .
Paper de-inking Compounds Household Cleaners
C o w l e s detergent silicates are uniform i n c o m p o s i t i o n and particle size—dust free —readily soluble—compatible witfci other alkalies, soaps, phosphates, synthetic d e tergents and other chemicals.
WRITE TODAY for our ORYMET File Folder containing complete t e c h n i c a l information and suggested formulations.
• Maintenance coating offered by A t l a s is b a s e d on D u Pont's H y p a l o n chlorosulfonated polyethylene. Called A t l a s H y p a l o n M a i n t e n a n c e Coating, material is said t o h a v e o u t s t a n d i n g resistance t o w e a t h e r i n g , h i g h temperature, and h i g h l y corrosive f u m e s a n d l i q u i d s i n c l u d i n g nitric a c i d , chlorine d i o x i d e , h y d r o g e n peroxide, a n d chrom i c acid as w e l l as i n o r g a n i c acids, alkalies, a n d salts. CS 8 • S u r f a c e t r e a t i n g m a t e r i a l , Ceilcrete B, offered b y C e i l c o t e i s a thermosett i n g plastic b a s e surfacing w h i c h c o m p a n y r e c o m m e n d s for protection of c o n c r e t e from fluorides, hydrofluoric a c i d , and hvdrofluoric a c i d s o l u t i o n s . CS9
C O W L Ε S C Η Ε M ICA L CÔ M Ρ Α Ν Υ 7016 Euclid A v e n u e ,
360
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For f u r t h e r i n f o r m a t i o n on a n y item m e n t i o n e d h e r e , see cou pon on p a g e 366
X f e v e f a n p 3," O h i o
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