Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1989-10-30
1992-02-18
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524513, C08K 501
Patent
active
050895443
ABSTRACT:
A sheet molding composition is disclosed which includes a four component resinous system which comprises (a) an unsaturated polyester comprising a polycondensation product of one or more dihydric alcohols and one or more ethylenically unsaturated polycarboxylic acids; (b) one or more low-profile additives which are thermoplastic polymers which cause phase separation and porosity during the curing reaction; (c) one or more olefinically unsaturated monomers which copolymerizes with the unsaturated polyester; and, (d) one or more compatible components containing one or more polyoxyethane substituents. The compatible components remain compatible when the polyester and monomer cure and impart improved surface characteristics when added to typical low-profile resin systems.
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Hsu Kuang-Hong
Krumlauf Paul R.
Ross Louis R.
Wilson Edward L.
Cain Edward J.
Gillespie Ted C.
Martineau Catherine B.
Michl Paul R.
Owens-Corning Fiberglas Corporation
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