Polyurethane Catalysts
Polyurethanes are polymers prepared by the reaction between an isocyanate (NCO functionality) and a polyol (OH functionality). These reactions are catalysed by metal organics and amines. Tin, Bismuth, Lead, Mercury, Zinc and Potassium organics, as well as tertiary amines, are used as the primary catalysts.
DriCAT®8320 and DriCAT®8316 – Bismuth Neodecanoate for flexible foams and elastomers
Duroct® Zinc 22% and DriCAT®3020 – Zinc 2-Ethylhexanoates and Zinc Neodecanoates as cure rate profile modifiers
Duroct® Potassium 10%, Duroct® Potassium 15% and DriCAT® Potassium 15%MEG – Potassium carboxylates -for rigid foams and unsaturated polyester resins in synergy with cobalt
The process of selecting a catalyst depends on several factors. Addition of metal catalysts in concentrations of ppm by weight has a profound effect on the reaction rate. In addition, catalyst selection will also depend on the cure profile requirements as they relate to the desired handling times and the properties of the cured product. Finally, environmental, and regulatory considerations cannot be ignored.
Grade
Chemical Name
Metal Content %
DriCAT®3020
Zinc Neodecanoate
19 (min)
Duroct® Zinc 22%
Zinc bis(2-ethylhexanoate)
22
DriCAT®8316
Bismuth (3+) Neodecanoate
16
DriCAT®8320
Bismuth (3+) Neodecanoate
20
DriCAT®8328
Bismuth tris(2-ethyl hexanoate)
28
Duroct®Potassium 15%
Potassium carboxylate
15
Duroct®Potassium 10%
Potassium carboxylate
10
DriCAT®Potassium 15%MEG
Potassium carboxylate
15
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To the best of our knowledge, the information contained herein is accurate and reliable as of the date of publication; however, we do not assume any liability whatsoever for the accuracy and completeness of the above information. Plastribution Speciality Chemicals makes no warranties which extend beyond the description contained herein. It is the customers’ responsibility to inspect and to test our products in order to satisfy themselves as to the suitability of the products to their particular purpose. The customers are responsible for the appropriate, safe and legal use, processing and handling our products.
