NEW BBEMTBRBBGB EBB PBLYBBTENE!
katil
Bill
10 400 F That's right! Heat any grade of Cosden Polyvis SH to as much as 400° F. and see the stability of this fine polybutene for yourself. Even after prolonged heating, this totally new Cosden Polyvis SH remains: • water white • bland in odor • completely stable (no degradation due to heat).
For sealants, calking and as adhesives, Cosden Polyvis SH Polybutenes have proved to be superior to o t h e r s . Test t h e m in your own application. Write for additional information today! Ask for the complete brochure on Cosden Polybutenes which details their properties and applications.
Polyvis SH is a registered trade name for Cosden's polyisobutylene.
COSDEN OIL & CHEMICAL COMPANY — BIG SPRING, TEXAS a wholly owned subsidiary of American Petrofina, Inc.
C&EN
13
