公开(公告)号：EP0914358A1

公开(公告)日：1999-05-12

申请号：EP97933765.0

申请日：1997-07-25

申请人： IMPERIAL CHEMICAL INDUSTRIES PLC

发明人： LYNCH, John, Patrick ,  IRVINE, Derek, John ,  BEVERLY, Gordon, Maxwell

IPC分类号： C08F2 ,  C08F265

CPC分类号： C08F2/38 ,  C08F265/06 ,  C08F2/02

摘要： A curable composition capable of being cured to form a thermoformable cast poly(methacrylate) comprising at least from 95 % by weight of a syrup which is a solution of a poly(methacrylate) in a curable monomeric methacrylate, from 0.05 to 0.1 % by weight of at least one initiator capable of initiating the curing of the curable monomeric methacrylate, from 0.0001 to 0.0005 % by weight of a catalytic chain transfer agent which is or which is derived from a cobalt chelate, from 0.05 to 0.1 % by weight of a cross-linking agent; and optionally one or more of conventional additives selected from splitting aids, pigments, peak suppressors and stabilisers. A thermoformable sheet formed from such a composition and a thermoformed article produced from such a sheet. The thermoformable sheet does not need to be thermoformed at relatively high temperatures, has an acceptable Vicat Softening Point, does not emit unpleasant odours on heating and meets stringent industry standards.