Patent ID: 6822055
Filing Date: 2004-11-23
Classification: B29C,B29K,C08G,Y10T

Abstract:
A method for producing a flat article comprising a material that contains polyreaction products, comprising the following steps:(1) Compounding of an epoxidation product of at least one carboxylic acid ester using at least one crosslinking agent, (2) Pre-crosslinking of the mixture obtained in step (1) to form a moldable material by completely reacting the epoxy groups of the epoxidation product with the crosslinking agent(s), (3) Molding of the moldable material obtained in step (2) in the shape of a flat article, and (4) Curing of the molded material by crosslinking the remaining unsaturated double bonds via radical hydrogen abstraction, or by radical polymerization, or a combination thereof, in the presence of a radical-forming initiator, to produce the flat article, wherein the pre-crosslinking reaction in step (2) is separate from the curing reaction in step (4).