SYNTHESIS OF LOW TEMPERATURE OIL RESISTANT URETHANE ELASTOMERS.
Abstract
Cast urethane-urea elastomers were prepared from blends of high molecular weight polyethers and polytetramethylene ether glycols which meet the mechanical strength, compression set at 100C and low temperature flexibility at -55C (-67F) requirements of the contract. This leaves only the ASTM No. 3 oil resistance requirement to be satisfied. Work has continued on evaluation of various diisoycanates, diamines, and low molecular weight chain extenders in the elastomer formulations. Also, a 4700 molecular weight polyether diol was evaluated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 31, 1964
- Accession Number
- AD0607284
Entities
People
- S. L. Axelrood
- W. J. Lajiness