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Protecting Helmets And Visors From ChemicalsThin layer of polysulfone on polycarbonate safety helmets and visors protects them from attack by chemicals. Useful in industrial safety helmets. Highly resistant to creep under tension load. Retains dimensional stability when exposed to moisture. Does not adversely affect optical properties of polycarbonate visors. Configuration varied to accommodate such special requirements as high impact strength or protection against moving particles and debris.
Document ID
19910000159
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Kosmo, Joseph J.
(NASA Lyndon B. Johnson Space Center, Houston, TX.)
Dawn, Frederic
(NASA Lyndon B. Johnson Space Center, Houston, TX.)
Date Acquired
August 14, 2013
Publication Date
April 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 4
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
MSC-21503
Accession Number
91B10159
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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