Chemistry Reference
In-Depth Information
PROPYLENE DERIVATIVES
E
PICHLOROHYDRIN
Uses
Virtually all epoxy resins are made with starting materials
based on epichlorohydrin, principally by reaction with
bisphenol A. It is also used for the preparation of resins
to increase the wet strength of paper. Both epichlorohydrin
and glycidol are used in the manufacture of
pharmaceuticals.
Manufacture
Cl
CH
2
=CH-CH
3
CH
2
=CH-CH
2
-Cl
HO
CH
2
CH
CH
2
Cl
O
O
calcium hydroxide
CH
2
CH
CH
2
Cl
CH
2
CH
CH
2
OH
glycidol
epichlorohydrin
Suppliers
Dow Chemical, Shell Chemical.
Epoxy resins are widely used in high-strength adhesives, corrosion-resistant
coatings, and corrosion-resistant pipes and tanks. The simplest starting mate-
rial for these thermoset polymers is made from phenol, acetone (to bisphenol
A), and epichlorohydrin.
CH
3
CH
3
CO
CH
3
+
2
HO
2 epichlorohydrin
HO
C
OH
CH
3
phenol
acetone
bisphenol A
O
O
CH
3
CH
2
CH
CH
2
O
C
O
CH
2
CH
CH
2
CH
3
