Patent ID: 6228201
Filing Date: 2001-05-08
Classification: C08L,C09D

Abstract:
A method for making a pinhole-resistant substrate comprising:(a) providing an extrusion composition comprising at least one olefin polymer wherein the composition is characterized as having a corrected or actual Goettfert melt strength value at 190.degree. C., as measured using a Rheotens unit, in the range of from about 0.01 centiNewtons to about 7.25 centiNewtons,(b) applying the composition to a substrate,(c) collecting the substrate with the extruded coating or laminated film for subsequent use or transferring the substrate with the extruded coating or laminated film for further processing,the coating or laminate being characterized as having from about 0 to about 1 pinholes per cm.sup.2 of thermally exposed area after exposure to hot air at 537.degree. C. for 0.75 second.