Patent ID: 6372324
Filing Date: 2002-04-16
Classification: B29C,C08J,Y10T

Abstract:
A polyethylene transparent resin sheet having a layer including a polyethylene resin formed from a copolymer of ethylene and polar group substituted ethylene, characterized in having the following characteristics:(a) tensile modulus of 20 to 1000 MPa; (b) number of foreign substances having a refractivity different from an amorphous resin composition which occupies a major part of a volume fraction of the sheet is no greater than 500/mm2 at any cross-section of the sheet and the foreign substances have an average length of no more than 10 &mgr;m; and (c) surface roughness, Ra, of at least one surface being no greater than 0.2 &mgr;m.