Inventors:
Nicholas W. Neuberg - Perrinville NJ
George Poszmik - Parlin NJ
Manshi Sui - Somerville NJ
Assignee:
Shamrock Chemicals Corporation - Newark NJ
International Classification:
B32B 516
C08F 600
C08J 328
Abstract:
A method is disclosed for providing a friable polytetrafluoroethylene (PTFE) product that has particles of a desired size which are flowable and do not tend to agglomerate. To achieve this result, the PTFE starting material is handled at a temperature below 66. degree. F. , and preferably below 55. degree. F. , before irradiating. The PTFE starting material may be mixed with a wetting agent before irradiating to provide a product that has enhanced dispersibility. The source of radiation may include electron beam radiation, nuclear radiation, or radiation from a cobalt-60 (CO. sub. 60) source.