Solvay Specialty Polymers Usa, LLC

Lee Carvell

Hong Chen

Charles R Hoppin

Jiqiang Xia

DeeDee Smith

William E Sattich

Peter Mushenheim

Erik Nelson

Described herein are polyphenylene sulfide ('PPS') polymers having excellent transparency to infrared ('IR') radiation. It was surprisingly discovered that PPS polymer composition including PPS polymers having a selected metal ion (Ca, K, and Mg) concentration at least 400 parts per million by weight (&#x201c;ppm&#x201d;), had significantly increase IR transparency, relative to corresponding PPS polymer compositions including a PPS polymer having a selected metal ion concentration less than 400 ppm. Additionally, described herein are methods for laser welding the PPS polymer compositions.

Polyphenylene sulfide polymer compositions and corresponding laser welding applications

Described here are polyphenylene sulfide ('PPS') polymers having significantly improved processability. It was surprisingly found that PPS polymers, terminated with specific end-capping agents in specific amounts, had significantly improved melt stability. Because of the significantly improved melt stability, the PPS polymers can be advantageously incorporated into melt processing techniques.

Polyphenylene sulfide polymers having improved melt-stability

Growing community of inventors

Cumming, GA, United States of America

Lee Carvell