Solid Polyol Benzoates : These six Polyol Benzoates are colorless solids w i t h melt points ranging b e t w e e n 46 and 98°C and w i t h t h e exception of Sucrose Benzoate exhibit a tendency t o supercool and recrystallize s l o w l y after being cooled b e l o w t h e melt point. Sucrose Benzoate unlike t h e others is a non-crystalline solid.
o. Λ
c-o-c-c-o-c-c-o-c-c-o-c *„ H H, H H, H H, 2
2
Triethylene Glycol Dibenzoate
C 1 2 H i4
0 3 (OH)09
2
Melting Point 47°C 358 Molecular Weight (theory) Color (liquid) 200 APHA Refractive Index 50°C (liquid)..1.5252 Volatility (mg/hr/cm2) 347°F 5.0 Availability Commercial
Sucrose Benzoate
Softening Point (Ball and Ring)...98°C Form Non-crystalline flake Molecular Weight (approx.) 1100 Color 60 APHA Refractive Index 25°C 1.5770 Availability Semi-works
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ο Glyceryl Trihpn7nato ι noenzoaxe
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Neopentylglycol Dibenzoate
^O
Melting Point 71°C Molecular Weight (theory) 404 C o ) o r (|iquid) 2 0 0 APHA Refractive Index 50°C ( l i q u i d ) . . 1 . 5 5 8 4 Volatility ( m g / h r / c m 2 ) 347°F 0.2 Availability Developmental
Melting Point 49°C 312 Molecular Weight (theory) Color (liquid) 200 APHA Refractive Index 50°C ( l i q u i d ) . . 1 . 5 2 9 8 Volatility ( m g / h r / c m 2 ) 347°F 7.5 Availability Developmental
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. ^ ^ Trimethylolethane Tribenzoate
Pentaerythritol Tetrabenzoate
Melting Point 73°C 432 Molecular Weight Color (liquid) 200 APHA Refractive Index 50°C ( l i q u i d ) . . 1 . 5 5 3 8 2 Volatility ( m g / h r / c m ) 347°F 0.3 Availability Developmental
Melting Point 95°C Molecular Weight 552 Color (liquid) 200 APHA Refractive Index 50°C (liquid)..1.5715 2 Volatility ( m g / h r / c m ) 347°F 0.1 Availability Developmental
ask
/ I
VELSICOL CHEMICAL CORPORATION INDUSTRIAL CHEMICALS DIVISION , Chattanooga, Tenn. 37410
4902 Central Avem
Please send technical information on Solid Polyol Benzoates to:
Velsicol Industrial Chemicals Division
The tri- and tetrabenzoate esters have a m u c h lower t e n d e n c y to volatilize at high t e m p e r a t u r e s t h a n seen with m o n o m e r plasticizers in this s a m e m o l e c u l a r w e i g h t r a n g e . T h e five c r y s t a l line Polyol Benzoates are c o m p a t i b l e a t low levels a n d t e n d to b l o o m or crystalize on a g i n g w h e n at higher levels in m a n y p o l y m e r s y s t e m s . In c o m b i n a t i o n w i t h resin s y s t e m s : D i b e n zoates a c t as plasticizers w i t h s o f t e n i n g a n d f l e x i b i l i t y effect. Tribenzoates modify with effect b e t w e e n plasticizers a n d h a r d resins. T e t r a b e n z o a t e a n d S u crose B e n z o a t e serve as h a r d resin w i t h s t i f f e n i n g a n d e m b r i t t l i n g e f f e c t ( m o d e r a t e d i f in c o m b i n a t i o n w i t h a plasticizer).
CEN-10316
TITLEFIRMADDRESSCITY
_STATE_
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International Representative: Velsicol International Corporation, C.A., P. 0 . Box 1687 Nassau, Bahamas C&EN 13
