John S Garnett

US Patent:

7842770, Nov 30, 2010

Filed:

Jul 24, 2009

Appl. No.:

12/509017

Inventors:

Wenbin Liang - Sugar Land TX, US
Yunwa W. Cheung - Hillsborough NJ, US
John W. Garnett - Rosharon TX, US

Assignee:

Dow Global Technologies Inc. - Midland MI

International Classification:

C08F 110/02
C08F 110/06
C08F 210/00

US Classification:

526348, 526351, 526352

Abstract:

The present invention relates to film layers and compositions having improved hot tack properties. The compositions comprise at least one ethylene/α-olefin interpolymer, wherein the ethylene/α-olefin interpolymer may have, for example, a Mw/Mn from about 1. 7 to about 3. 5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship:>−2002. 9+4538. 5()−2422. 2()2.

US Patent:

8227546, Jul 24, 2012

Filed:

Oct 6, 2006

Appl. No.:

12/088772

Inventors:

Shaun S. Parkinson - Tarragona, ES
Martin M. Hill - Tarragona, ES
John Garnett - Rosharon TX, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C08F 110/00
C08F 210/06
B32B 27/32

US Classification:

525191, 525240, 4284111, 428516, 428213, 428515, 428 352, 428523, 526351, 526348, 526352

Abstract:

Multi-layer elastic air quenched blown film structures are disclosed which include: a first layer incorporating a propylene-based copolymer and optionally, a linear low density polyethylene or a low density polyethylene; and at least one second layer incorporating a linear low density polyethylene copolymer and optionally, a propylene-based copolymer and/or a low density polyethylene. Alternatively the second layer of the film structures may contain an in-reactor blend of a substantially linear polyethylene (or a homogeneously branched linear polyethylene) and a linear low density polyethylene. The film structures show an excellent balance of Dart impact, Elmendorf tear (in both the machine direction and cross direction), elastic holding force and elastic recovery.

US Patent:

20060199030, Sep 7, 2006

Filed:

Mar 15, 2006

Appl. No.:

11/376971

Inventors:

Wenbin Liang - Sugar Land TX, US
Yunwa Cheung - Lake Jackson TX, US
John Garnett - Rosharon TX, US

Assignee:

Dow Global Technologies Inc. - Midland MI

International Classification:

B32B 27/08

US Classification:

428515000, 526348100, 525240000, 526348500, 526348200, 526348600

Abstract:

The present invention relates to film layers and compositions having improved hot tack properties. The compositions comprise at least one ethylene/α-olefin interpolymer, wherein the ethylene/α-olefin interpolymer may have, for example, a Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship: >−2002.9+4538.5()−2422.2()2.

US Patent:

20140377548, Dec 25, 2014

Filed:

Dec 27, 2012

Appl. No.:

14/364333

Inventors:

Cyrille Billouard - Zuerich, CH
Shaun Parkinson - Tarragona, ES
Xiaosong Wu - Sugar Land TX, US
John W. Garnett - Omaha NE, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

B32B 7/06
B32B 27/32
B32B 27/08

US Classification:

428349

Abstract:

The multilayer film comprises a first outer layer which is heat sealable. The first outer layer comprises from 95 to 100 percent (by weight of the first outer layer) of a first polymer, said first polymer being derived from propylene monomer and optionally one or more comonomers selected from the group consisting of ethylene and C4-C8 alpha olefins. The first polymer should have a melting point of at least 125 C. The multilayer film further comprises an inner portion adjacent to the first outer layer. The inner portion may be a single layer or may comprise several layers. At least one layer of the inner portion comprises an elastomeric propylene based polymer (“EPBP”). Further at least one layer of the inner portion comprises a second polymer, wherein the second polymer is selected from the group consisting of high pressure low density polyethylene, high density polyethylene, ethylene acrylic acid copolymers, ethylene (meth)acrylic acid copolymers and combinations thereof. The second polymer may be together with the EPBP in the same layer or may be in a separate layer. It is also contemplated that the inner portion may optionally comprise one or more additional layers, which may or may not contain EPBP or the second polymer. The multilayer film further comprises a second outer layer arranged so that the inner portion is encapsulated between the first outer layer and the second outer layer. The second outer layer comprises a third polymer, wherein said third polymer is selected from the group consisting of homopolymer polypropylene, random copolymer polypropylene and impact copolymer polypropylene and blends thereof.