a composite material includes at least one layer of fibrous material ; and at least one biodegradable polymer layer composed of at least one biodegradable polymer , at least one biodegradable copolymer or both at least one biodegradable polymer and at least one biodegradable copolymer . the biodegradable polymer and biodegradable copolymer are each composed of a polymer block selected from the group consisting of poly , poly , poly , polyalkylene , polyvinyl , polyvinylether , poly , polyvinylpyrrolidine , polyester , polylactide , polyglycolide , polycaprolactone , poly , polyacrylates , poly and salts thereof , polyether , polyurethane , poly and salts thereof , polyacrylamide , polyepoxide , polyol , polysaccharide , and latex .