Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1986-04-25
1987-03-17
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
26433118, 524 37, 524 38, 524 39, 524 40, 524 41, 524297, 524396, 524560, 524563, 526172, 526200, 5263297, 527300, 527311, 527313, 527314, C08J 533
Patent
active
046508210
ABSTRACT:
The present invention relates to a novel acrylic composition, novel acrylic castings prepared therefrom, and a novel process for the preparation of the acrylic castings. The composition comprises methyl methacrylate, about 0.5 to 20% by weight of a carboxylated cellulose ester, and about 1 to 100 ppm of a vanadium promoter. Optionally, a heat dissipative material, such as a plasticizer or an additional monomer, can also be employed. In accordance with the process of the present invention, an acrylic monomer comprising methyl methacrylate is combined with about 0.5 to 20% by weight of a carboxylated cellulose ester so as to form an easily pourable syrup, about 1 to 100 ppm of a vanadium promoter is added to the syrup and the resulting solution is poured into a suitable mold, and the solution is cured at room temperature so as to form a hard acrylic casting.
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Eastman Kodak Company
Reddick J. M.
Schofer Joseph L.
Spurrell Donald W.
Thomsen J. Frederick
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