Eastman Chemical Company

Steven Frederick Wright

John Guy Franjione

Amit Vasant Desai

James E Grant, Jr

Peter Chapman

Andrew Thomas Detwiler

Everett B Shepard

Ping Peter Shang

William Herbert Heise

A build material for additive manufacturing applications is disclosed. The build material includes a build composition in powder form. The build composition includes a semi-crystalline polymer having a glass transition temperature of at least 60&#xb0; C. as measured by DSC and a minimum crystallization half-time of greater than 100 minutes as measured by SALS. A semi-crystalline polymer useful in additive manufacturing applications, an additive manufacturing method for producing a three-dimensional object and an additive-manufactured polymer article are also described.

Build materials for additive manufacturing applications

An on-line defect detection system for detecting a defect in a fibrous member and related processes are provided. The defect detection system may include first and second fiber contacting members where at least one of the contacting members is shiftable relative to the other contacting member. The defect detection system may also include a defect detection zone defined between at least a portion of the first and second fiber contacting members. The defect detection zone may be configured to receive at least a portion of the fibrous member in a manner such that the fibrous member contacts the first and second fiber contacting members in the defect detection zone. Further, the defect detection zone may also include a sensor configured to sense movement of one of the first and second fiber contacting members and generate an electronic signal based on the sensed movement of the at least one fiber contacting member.

On-line detection of defects in fibrous members

Growing community of inventors

Johnson City, TN, United States of America

Steven Frederick Wright