公开(公告)号：US10265933B2

公开(公告)日：2019-04-23

申请号：US14646425

申请日：2013-11-18

Applicant: Dow Global Technologies LLC

Inventor： Steven R. Jenkins ,  Patrick Lee ,  Joseph Dooley ,  Donald E. Kirkpatrick ,  Bernard Obi

IPC: B32B27/36 ,  B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B29C47/00 ,  B29C47/06 ,  B29C47/78 ,  B29D7/01 ,  B29K23/00

Abstract: A microlayer component having improved oxygen and water vapor barrier properties (i.e., decreased permeabilities) comprises a barrier microlayer of a semi-crystalline barrier polymer in direct contact with a confining microlayer to promote in-plane crystalline lamellae formation. A microlayer component having a significant amount of in-plane crystalline lamellae may be characterized by at least 1.5× oxygen permeability improvement and at least 1.5× water vapor permeability improvement. A microlayer component having at least 1.5× improvement in oxygen and water vapor permeability may be coextruded and subjected to post extrusion stretching or heat treating.

公开(公告)号：US20150298437A1

公开(公告)日：2015-10-22

申请号：US14646425

申请日：2013-11-18

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Steven R. Jenkins ,  Patrick Lee ,  Joseph Dooley ,  Donald E. Kirkpatrick ,  Bernard Obi

IPC: B32B27/08 ,  B32B27/32 ,  B29C47/00 ,  B29C47/06 ,  B29D7/01 ,  B29C47/78 ,  B32B27/36 ,  B32B27/30

CPC classification number: B32B27/08 ,  B29C47/0057 ,  B29C47/06 ,  B29C47/78 ,  B29D7/01 ,  B29K2023/18 ,  B29K2995/0067 ,  B32B27/302 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/325 ,  B32B27/36 ,  B32B27/365 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2250/42 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2439/70

Abstract: A microlayer component having improved oxygen and water vapor barrier properties (i.e., decreased permeabilities) comprises a barrier microlayer of a semi-crystalline barrier polymer in direct contact with a confining microlayer to promote in-plane crystalline lamellae formation. A microlayer component having a significant amount of in-plane crystalline lamellae may be characterized by at least 1.5× oxygen permeability improvement and at least 1.5× water vapor permeability improvement. A microlayer component having at least 1.5× improvement in oxygen and water vapor permeability may be coextruded and subjected to post extrusion stretching or heat treating.

Abstract translation: 具有改善的氧气和水蒸气阻隔性能（即，降低的渗透性）的微层组分包括与限制性微层直接接触以促进面内晶体薄片形成的半结晶阻挡聚合物的阻挡微层。 具有大量面内结晶薄片的微层组分的特征在于至少1.5倍透氧率提高和至少1.5倍水蒸气透过率的改善。 可以将具有至少1.5×氧气和水蒸气渗透性提高的微层成分共挤出并进行后挤出拉伸或热处理。