Patent · US Active

Multilayered polyolefin-based films

US9511567B2 · kind B2 · utility

15Cited by

18References

7Claims

0Family size

Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Yushan Hu · Pearland, US
Burcak Conley · Zürich, CH
Kim L. Walton · Lake Jackson, US
Colin Li Pi Shan · Pearland, US
Gary R. Marchand · Lake Jackson, US
Rajen M. Patel · Lake Jackson, US
Eva-Maria Kupsch · Wetzikon, CH
Brian W. Walther · Clute, US

Key dates

Filing date	Sep 13, 2013
Grant date	Dec 6, 2016
Priority date	—
Expiry date	Sep 13, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31913
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Disclosed are multilayer structures comprising a polyolefin layer, a tie layer and a barrier layer wherein the tie layer is a formulation comprising a crystalline block copolymer composite (CBC) comprising i) an ethylene polymer (EP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP) and iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.