Sound and heat insulation having little odor
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United States of America Patent
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-
Dec 9, 1997
Issued Date -
N/A
app pub date -
Dec 29, 1995
filing date -
Apr 6, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process which permits the production of mouldings which have little odor and comprise fibrous semifinished products to which heat-curing novolak resins have been added and which are suitable for lining heat-emitting and/or sound-emitting vehicle parts, in which their binders are completely and uniformly crosslinked. The odor emission, in particular the formaldehyde emission, is thus reduced. This process furthermore permits the production of products having an unusually large layer thickness. The homogeneous polymerisation reaction is achieved by the use of a hot fluid in the form of a dry, saturated steam and under elevated pressure.
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