SYNTHESIS OF LOW TEMPERATURE CHEMICAL RESISTANT URETHANE ELASTOMERS
Abstract
The preparation of urethane-urea elastomers was investiga ed. A statistically designed set of experiments was completed investigating 5 variables at 2 levels. Two aromatic diamines were compared at two levels of amine to hydroxyl ratio. Two aromatic diisocyanates at 2 levels of concentration were also compared. Two polyols of 1500 equivalent weight were utilized to round out the 5 variables. These polyols are PLURACOL TP-4542 and Teracol 30. The use of ortho dichlorobenzidine (DCB) at a 1.5 NH2/OH ratio in combination with tolylene diisocyanate and the polypropylene-ethylene ether triol came the closest to meeting the Army specification for an oil resistant rubber with good low temperature flexibility. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1962
- Accession Number
- AD0288088