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专利名称：Copolymer containing methylmethacrylate
units and its use in sheet material
发明人：Cunningham, Robert Ervin,Berzinis, Albin
Peter
申请号：EP84302180.9申请日：19840330公开号：EP0124273B1公开日：19870819
摘要：Copolymer is provided comprising methylmethacrylate, maleic anhydride andstyrene units. The copolymer is useful in preparing cast sheet which may be opticallyclear and resistant to thermal relaxation. Such sheet may be prepared to meet therequirements for aircraft glazing applications. The copolymer comprises 93 to 95 weightpercent of methylmethacrylate units, and 7 to 5 weight percent of a mixture of maleicanhydride and styrene units wherein the molar ratio of maleic anhydride to styrene unitsis at least one.
申请人：ROHM AND HAAS COMPANY
地址：Independence Mall West Philadelphia Pennsylvania 19105 US
国籍：US
代理机构：Angell, David Whilton
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