Patent ID: 8735523
Filing Date: 2014-05-27
Classification: C08F,C08J,Y10T

Abstract:
1. Bulk oriented polymer crystalline materials comprising crystals of the polymer and satisfying the following requirements (I) and (II): (I) the bulk oriented polymer crystalline materials have a crystallinity of 80% or greater; and (II) the crystals are 100 nm or less in size, wherein the crystallinity X where I a is an integrated scattering intensity of amorphous contained in a sample and I a 0 is an integrated scattering intensity of a 100% amorphous sample, the 100% amorphous sample having a crystallinity of 0%, and wherein said bulk oriented polymer crystalline materials are obtained by a production method including the steps of (i) putting a polymer melt in an oriented melt state by elongating the polymer melt at a strain rate of 400 s