配方类型:

RUBBER, RESINS, WAXES

配方说明:

Polyester Manufacture

配方组成:

Ethylene glycol/41.120
React dimethyl terephthalate, ethylene glycol and zinc acetate with
agitation for 5 hours to a maximum temperature of 210'C during which
time the theoretical amount of methanol (836 ml) distills over. Add
"M&T" color Suppressant-190 to deactivate the first stage catalyst.
2nd Stage
Polyethylene terephthalate is prepared by reacting the following
materials
Dimethyl terephthalate/58.830
Ethylene glycol/41.120
Zinc acetate (catalyst)/0.009
"M&T" Color Suppressant-190/0.040
Zinc acetate (catalyst)/0.009
Dimethyl terephthalate/58.830
Bis 2-hydroxyethyl terephthalate/99.700
Titanium dioxide (delusterant)/0.250
"M&T" Catalyst S-21/0.102
Bis 2-hydroxyethyl terephthalate/99.700
Titanium dioxide (delusterant)/0.250
"M&T" Catalyst S-22/0.343
"M&T" RS-190 (color suppressant)/0.040

配制方法:

React the above materials with agitation in a stainless steel reactor at 280'C and 0.5 millimeters vacuum until the desired intrinsic viscosity is obtained.