Pentaerythritol Alkyds From Natural Drying Oils There has recently been
linseed and soy, 30% phthalic anhydride
a great expansion in the
can be used with P E N T E K , 2 5 % w i t h
use of P e n t a e r y t h r i t o l
D I P E N T E K —and a b o u t 18-20% w i t h
alcohols in the manufac
TRIPENTEK. T h e properties of these resins will be
ture of alkyd resins. Usually these resins are made by alco
superior to those of alkyd resins in which
holizing a natural oil such as linseed or
glycerol is the sole polyhydric alcohol
soy, with a polyhydric alcohol—and then
and which contain approximately 40%
adding a dibasic acid—generally phthalic
phthalic anhydride.
anhydride—although maleic, fumaric, suc
O u r chemists m i l be glad to discuss the
cinic or adipic acids are sometimes used.
possible application of these or o t h e r
T h e Heyden Pentaerythritol alcohols,
Heyden Chemicals to the improvement of
P E N T E K , D I P E N T E K and T R I P E N -
your products.
TEIC, are all used in making alkyd resins. T h e formulation must be done carefully, as there is a critical amount of phthalic
Technical Data
Sheets
will be mailed upon
request.
anhydride which can be used with the Pentaerythritol alcohol, if acid numbers below 15 are t o be secured without prema ture gelation. W i t h the softer oils such as
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