PROGRESS REPORT Primary plasticizer improves insulation and auto vinyls
a r e available i n a n y q u a n t i t y , u p t o t a n k c a r lots.
F L E X O L Plasticizer 13-13 (di-tridecyl p h t h a l a t e ) i s a n e w p r i m a r y plasticizer for v i n y l chloride resins a n d copolymers. T h i s plasticizer is p a r t i c u l a r l y useful i n f o r m u l a t i o n s for v i n y l a u t o m o t i v e u p h o l s t e r y w h e r e low s o a p y w a t e r e x t r a c t i o n a n d anti-fogging p r o p erties a r e critically i m p o r t a n t .
P h y s i c a l P r o p e r t i e s of F L E X O L 13-13 Molecular W e i g h t - . 530 Specific G r a v i t y , 25/25°C 0.950 Boiling P o i n t , °C. a t 3.5 m m . H g . . . . 285 Pour Point, °F. . . . - 3 5 F l a s h P o i n t , °F. . . . 450 Viscosity, cps. a t 25°C. 190 Refractive Index, a t 25°C. . . . . . . 1.4835 You can obtain complete information on t h e i n t e r e s t i n g properties of b o t h F L E X O L 13-13 a n d 13-13X t h r o u g h y o u r nearest CARBIDE Technical Representa t i v e , or b y using t h e c o u p o n below.
New triol for firm to super-soft foams
F L E X O L 13-13 h a s excellent viscosity stabilizing a c t i o n i n plastisol s y s t e m s . I n i t i a l viscosity is higher t h a n t h a t o b t a i n e d w i t h o t h e r p h t h a l a t e esters, d u e t o t h e i n h e r e n t higher viscosity of t h e ester. I t s c o m b i n a t i o n of good electrical p r o p e r t i e s , v e r y low volatility, good h e a t s t a b i l i t y , a n d low m o i s t u r e e x t r a c t i o n m a k e t h i s n e w m a t e r i a l ideal for a p p l i c a t i o n s r e q u i r i n g effective oil and water resistance—high-tempera t u r e wire i n s u l a t i o n , g a s k e t i n g , a n d jacketing compounds. Also, C A R B I D E h a s d e v e l o p e d F L E X O L
Plasticizer 13-13X (containing 0.25 weight p e r c e n t b i s p h e n o l A) a s a lowcost, superior plasticizer for h i g h - t e m perature vinyl insulation compounds. F L E X O L Plasticizers 13-13 a n d 13-13X Union Carbide Chemicals Company Div. of Union Carbide Corporation 270 Park Avenue, New York 17, N . Y.
T h e basic need of t h e flexible p o l y e t h e r foam i n d u s t r y for a diversified interm e d i a t e h a s been m e t w i t h N I A X T r i o l LM-52. Using this material a n d varying t h e f o r m u l a t i o n slightly, i t is possible t o p r o d u c e flexible p o l y e t h e r foams for a wide r a n g e of end-uses. O n e of t h e m o r e i m p o r t a n t a d v a n t a g e s of N I A X T r i o l L M - 5 2 is i t s usefulness i n p r o d u c i n g foams w i t h v a r y i n g physical properties. I n addition, N I A X T r i o l L M - 5 2 c a n t o l e r a t e a wide r a n g e of t i n c a t a l y s t c o n c e n t r a t i o n s w i t h little or n o sacrifice of p r o p e r t i e s —a factor of m a j o r i m p o r t a n c e in t h e processing of flexible p o l y e t h e r foams. U s i n g N I A X T r i o l L M - 5 2 a s t h e sole i n t e r m e d i a t e , foams c a n b e m a d e h a v ing one-inch R M A ' s of 8 t o 33 p o u n d s p e r 50 s q u a r e inches, a n d four-inch R M A ' s of 14 t o 50 p o u n d s p e r 50 s q u a r e inches. T h i s v a r i e t y of load-bearing properties w a s o b t a i n e d b y c h a n g i n g only t h e a m o u n t of silicone oil a n d water used, a n d adding different a m o u n t s of U C O N P r o p e l l a n t 1 1 . F i r m , m e d i u m , soft, a n d super-soft foams for v a r i o u s furniture a p p l i c a t i o n s can b e o b t a i n e d b y using N I A X T r i o l L M - 5 2 . C h a n g e s in a u t o m o t i v e speci-
C &EN
-Improved Acrylates
fications should require only m i n o r a d d i tions or r e d u c t i o n s of o t h e r m a t e r i a l s used i n t h e f o r m u l a t i o n . Your CARBIDE Technical Representa t i v e will p r o v i d e c o m p l e t e information, or y o u m a y use t h e c o u p o n below.
Lower inhibitor levels in improved acrylates C A R B I D E ' S c o n t i n u i n g policy of i m p r o v i n g t h e q u a l i t y of a c r y l a t e s h a s resulted in t h e d e v e l o p m e n t of n e w grades of e t h y l , b u t y l , a n d 2-ethylhexyl a c r y l a t e s —all w i t h lower c o n c e n t r a t i o n s of h y d r o q u i n o n e ( H Q ) or t h e m o n o m e t h y l e t h e r of h y d r o q u i n o n e ( M M H Q ) . Lower i n h i b i t o r levels offer several distinct advantages during production of latexes. F o r m u l a t o r s need less catalyst t o o v e r c o m e t h e i n h i b i t o r , polymerizations start faster, and the possibility of color d e v e l o p m e n t from t h e c a t a l y s t - i n h i b i t o r reaction is greatly reduced. T h e following t a b l e s u m m a r i z e s inhibitor levels for acrylic acid a n d i t s esters. T h e n e w grades a r e i n d i c a t e d b y asterisks (*): Ethyl acrylate Butyl acrylate 2-Ethylhexyl acrylate Acrylic acid, glacial Acrylic acid, aqueous
HQ ppm
MMHQ ppm
200*
200
60*
100
60*
100 60*
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500
—
500
E x t e n s i v e t e s t s i n d i c a t e t h a t these new, low-inhibitor grades c a n be shipped a n d stored i n t h e s a m e w a y a s higherconcentration grades. Full i n f o r m a t i o n on t h e s e i m p r o v e d m a t e r i a l s is o b t a i n a b l e t h r o u g h your CARBIDE Technical Representative. FLEXOL, NIAX, and UCON are registered marks.
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- N I A X Triol LM-52
Send information on: D FLEXOL Plasticizer 13-13 • NIAX Triol LM-52 • Physical Properties of Synthetic Organic Chemicals
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