Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Producing or treating porous product
Patent
1997-09-11
1999-06-15
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Producing or treating porous product
264 51, 264 53, 264 54, 264424, 264425, B29C 4402
Patent
active
059119403
ABSTRACT:
Foamed articles having enhanced tensile, elastic recovery, and creep and fatigue resistance properties are prepared using a dual cure system. This system comprises a heat or radiation-activated first stage cure (which follows or coincides with foaming) followed by a moisture-activated second stage cure. Heat-activated curing systems include peroxide, sulfur, etc., and radiation-activated cure systems include electron beam, gamma-ray, etc. Moisture-activated systems include silane, sulfonyl chloride, and the like.
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Karande Seema V.
Walton Kim L.
Kuhns Allan R.
The Dow Chemical Company
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