Vacuum deposition and curing of oligomers and resins
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United States of America Patent
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Mar 19, 2002
Grant Date -
N/A
app pub date -
Mar 31, 1999
filing date -
Mar 31, 1999
priority date (Note) -
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Abstract
The present invention is the formation of solid polymer layers under vacuum. More specifically, the present invention is the use of 'standard' polymer layer-making equipment that is generally used in an atmospheric environment in a vacuum, and degassing the liquid material prior to injection into the vacuum. Additional layers of polymer or non-polymer may be vacuum deposited onto solid polymer layers. Formation of polymer layers under a vacuum improves material and surface characteristics, and subsequent quality of bonding to additional layers. Further advantages include use of less to no photoinitiator for curing, faster curing, fewer impurities in the polymer electrolyte, as well as improvement in material properties including no trapped gas resulting in greater density, and reduced material wetting angle that facilitates spreading of the material and provides a smoother finished surface.
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