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Doverphos Solid Phosphites

Doverphos S-9228® is a proprietary solid phosphite used to give improved performance for Polyolefin resins, Engineering resins and powder coatings. This product offers high activity with excellent color, thermal, and hydrolytic stability. Doverphos S-9228® has broad FDA and global food approvals. Dover Chemical offers this product as a powder or as a non-dusting form, and also in blends.


Doverphos® Solid Phosphites

Click on product name below to view technical data sheet

Product

Chemical Name

Appearance

 Acid Number  (mgKOH/gm)

Melting Point,  ºC

Specific Gravity @ 60ºC

%P

Doverphos S-9228®
U.S. Patent No. 5,364,895 and 5,438,086

Bis (2,4-dicumylphenyl) pentaerythritol diphosphite

Free Flowing Powder

1.0 max

230 min

----

7.3

Doverphos S-9228T
U.S. Patent No. 5,364,895 and 5,438,086

 Bis (2,4-dicumylphenyl) pentaerythritol diphosphite

Free Flowing Powder

 1.0 max

 225 min

 ----

 7.3

Doverphos S-9228PC 
U.S. Patent No. 5,364,895 and 5,438,086         

Bis (2,4-dicumylphenyl) pentaerythritol diphosphite

Free Flowing Powder

 1.0 max

 225 min

 ----

 7.3

Doverphos S-480

Tris (2,4-di-tert-butylphenyl) phosphite

Free Flowing Powder

----

180 min

----

4.8

Doverphos S-680

Distearyl pentaerythritol diphosphite

Flake

1.0 max

40 - 70

0.923 - 0.938

7.8 - 8.2

Doverphos S-682

Distearyl pentaerythritol diphosphite    w/<1% TIPA

Flake

0.5 max

40 - 70

0.923 - 0.938

 7.8 - 8.2  

 

DISCLAIMER: 
All specifications and suggestions in this bulletin concerning the use of our products are based upon tests and data believed to be reliable. Since actual use by others is beyond our control, no guarantee, expressed or implied, is made by Dover Chemical as to the effects of such use or the results to be obtained.

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