Christopher J Roy

US Patent:

20130295395, Nov 7, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/842551

Inventors:

CLAUDIO M. PAULINO - South Kingstown RI, US
CHRISTOPHER D. ROY - Saunderstown RI, US

International Classification:

C08L 23/12
B32B 15/085

US Classification:

428461, 525240

Abstract:

Embodiments herein relate to a biaxially oriented film comprising a core layer (B) comprising a blend of a high density polyethylene and a crystalline polypropylene, wherein the biaxially oriented film has a lower moisture vapor transmission rate than that of a biaxially oriented polypropylene (BOPP) film have a same structure and composition as that the biaxially oriented film except the BOPP film has the core layer (B) containing 100 wt % of the crystalline polypropylene.

US Patent:

20150037556, Feb 5, 2015

Filed:

Jul 31, 2013

Appl. No.:

13/956154

Inventors:

- North Kingstown RI, US
Keunsuk P. CHANG - North Kingstown RI, US
Christopher D. ROY - Saunderstown RI, US

Assignee:

TORAY PLASTICS (AMERICA), INC. - North Kingstown RI

International Classification:

C08L 23/12
B32B 27/32
B32B 15/085
C08L 23/06

US Classification:

428220, 525240, 428516, 428461

Abstract:

A multi-layer biaxially oriented polypropylene (BOPP) film with a novel formulation which exhibits matte appearance is disclosed. This improved formulation comprises a blend of high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE) or linear low density polyethylene (LLDPE) with polypropylene (PP) used in the core layer to achieve a matte appearance low gloss PP-based film that still exhibits typical properties of BOPP films with significantly lower haze than conventional matte films. The multi-layer BOPP film has additional layers such as a second polyolefin resin-containing layer, a metal layer, or combinations thereof.