The Dow Chemical Company

Ravi B Shanker

R Garth Pews

Duane R Romer

Michael E Mills

George J Quarderer, Jr

Chieh-Chun Chau

Yoshihiko Teramoto

Myrna Serrano

Timothy L Faley

Masaru Nakagawa

Timothy J Rehg

Substituted thiadiazoles which correspond to the formula: ##STR1## wherein R represents ##STR2## X represents --Br, --Cl, --F, --CH.sub.3, --OCH.sub.3, --COOCH.sub.3, --NO.sub.2, --SCH.sub.3, --SO.sub.2 CH.sub.3 or --CF.sub.3 and Y is --SCN or --SCH.sub.2 SCN. These compounds have been found to exhibit antimicrobial and marine antifouling activity in industrial and commercial applications and compositions containing these compounds are so employed.

Substituted thiadiazoles, compositions containing them and their use as

Polybenzazole polymer dopes are spun into fibers at high speed by passing through a spinneret with proper selection of hole geometry, followed by spin-drawing to a spin-draw ratio of at least 20, washing, taking up and drying. The take up speed is at least about 150 meters per minute, and the fibers are spun in at least 10 km lengths without a break.

Method for spinning a polybenzazole fiber

Growing community of inventors

Midland, MI, United States of America

Ravi B Shanker