Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1989-11-02
1993-09-14
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523513, C08K 336
Patent
active
052449416
ABSTRACT:
A molding composition which, when cured, is useful as an artificial stone composition, is disclosed. The composition comprises between about 10 to about 25 parts by weight of a non-volatile polyester backbone resin; between about 10 to about 25 parts by weight of an ethylenically unsaturated monomer and between about 50 to about 80 parts by weight of a filler selected from the group consisting of alumina trihydrate, borax, hydrated magnesium calcium carbonate and calcium sulfate dihydrate. When an artificial stone composition simulating granite is desired, the molding composition further comprises chips of a previously cured thermosetting resinous composition. The compositions are produced in a vented but essentially closed mold through which heating and cooling media can freely flow.
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Belson Charles M.
Bruckbauer Gerald J.
Ingriola Joseph A.
Woytek Anthony J.
Cain Edward J.
Michl Paul R.
Ralph Wilson Plastics Company
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