摘要：

1. A composite sheet comprising an oriented thermoplastic base sheet and a coating on at least one side thereof comprising a composition of (1) from 50 to 80%, based on the weight of the composition, of an interpolymer of from 50 to 60 wt. percent of a C -C alkyl methacrylate, from 50 to 40 wt. percent of a C C alkyl acrylate and from 1 to 5 wt. percent of an acid selected from the group consisting of methacrylic, acrylic and itaconic acid, the individual monomer units not exceeding a total of 100%; (2) from 50 to 20%, based on the weight of the composition of a compound selected from the group consisting of an adduct of rosin and an alpha-beta unsaturated dicarboxylic acid, and the partial esters of said adduct and a polyhydric alcohol; and (3) from 1 to 5%, based on the weight of the composition, of a wax selected from the group consisting of parafiin wax and rnicrocrystalline hydrocarbon wax, the components of the composition not exceeding a total of 100% by weight.

展开