Chia Chung Dr Cheng

US Patent:

6440882, Aug 27, 2002

Filed:

Feb 29, 2000

Appl. No.:

09/515718

Inventors:

Dina Marie Colucci - Nassau Bay TX
Chia Yung Cheng - Seabrook TX
William Michael Ferry - Houston TX
Don Allen Plank - Baytown TX

Assignee:

Exxon Mobil Chemical Patents Inc. - Houston TX

International Classification:

D04H 100

US Classification:

442340, 442400, 442401

Abstract:

This invention relates generally to novel fibers and fabrics. Specifically, these fibers are prepared using propylene impact copolymer compositions. Fabrics, particularly nonwoven fabrics, formed from these fibers exhibit improved elongation properties.

US Patent:

7550400, Jun 23, 2009

Filed:

Aug 2, 2005

Appl. No.:

11/195483

Inventors:

William M. Chien - Houston TX, US
Chia Y. Cheng - Seabrook TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B32B 27/12
B32B 27/32
D04H 3/16

US Classification:

442394, 442398, 442401

Abstract:

Multiple layer structures incorporating at least one polymeric film layer and at least one nonwoven fabric layer and products produced from such structures are provided. The polymeric film layer includes at least one tackifier resin. The at least one tackifier resin may be selected from a variety of resins including synthetic and natural resins. In certain embodiments, the at least one tackifier resin may be present at a concentration of about 0. 1 wt. % to about 50 wt. % of the polymeric layer. The polymeric film layer may include one or more polymeric components selected from a variety of polymeric materials. Exemplary polymeric materials include polyethylene and ethylene vinyl acetate although as discussed hereinafter, a wide range of polymeric joined with a nonwoven fabric. The multiple layer structures may include additional layers made from a variety of materials. The structures exhibit beneficial peel strength properties between the polymeric layer and the nonwoven fabric layer.

US Patent:

7632887, Dec 15, 2009

Filed:

Aug 4, 2003

Appl. No.:

10/634351

Inventors:

Chon Yie Lin - Houston TX, US
Chia Yung Cheng - Seabrook TX, US
Henry Wu-Hsiang Yang - Kingwood TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08K 5/01
C08L 23/12
C08L 23/14
C08J 3/18

US Classification:

524491, 524490, 524848, 524582, 524583

Abstract:

The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized plasticizer; wherein the non-functionalized plasticizer may comprise Cto Cparaffins (including branched and normal paraffins) having a pour point of less than −5 C. In one embodiment, the non-functionalized plasticizer is an isoparaffin comprising Cto Cisoparaffins. In another embodiment the non-functionalized plasticizer is a polyalphaolefin comprising Cto Cn-paraffins. The polyolefin may be a polypropylene homopolymer, copolymer, impact copolymer, or blends thereof, and may include a plastomer. Non-limiting examples of desirable article of manufacture made from compositions of the invention include films, tubes, pipes, sheets, fibers, woven and nonwoven fabrics, automotive components, furniture, sporting equipment, food storage containers, transparent and semi-transparent articles, toys, tubing and pipes, and medical devices.

US Patent:

7652094, Jan 26, 2010

Filed:

May 12, 2006

Appl. No.:

11/433623

Inventors:

Chon Yie Lin - Houston TX, US
Chia Yung Cheng - Seabrook TX, US
Henry Wu-Hsiang Yang - Kingwood TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08K 5/01
C08L 23/10
C08K 23/12
C08J 3/18

US Classification:

524491, 524490, 524848, 524582, 524583

Abstract:

The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized plasticizer; wherein the non-functionalized plasticizer may comprise Cto Cparaffins (including branched and normal paraffins) having a pour point of less than −5 C. In one embodiment, the non-functionalized plasticizer is an isoparaffin comprising Cto Cisoparaffins. In another embodiment the non-functionalized plasticizer is a polyalphaolefin comprising Cto Cn-paraffins. The polyolefin may be a polypropylene homopolymer, copolymer, impact copolymer, or blends thereof, and may include a plastomer. Non-limiting examples of desirable article of manufacture made from compositions of the invention include films, tubes, pipes, sheets, fibers, woven and nonwoven fabrics, automotive components, furniture, sporting equipment, food storage containers, transparent and semi-transparent articles, toys, tubing and pipes, and medical devices.

US Patent:

7985802, Jul 26, 2011

Filed:

Apr 18, 2008

Appl. No.:

12/105986

Inventors:

William M. Chien - Houston TX, US
William M. Ferry - Houston TX, US
Chia Y. Cheng - Seabrook TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08L 23/04
C08L 23/10

US Classification:

525191, 525240

Abstract:

Provided are fabrics, components thereof, and methods for making the same. Woven and nonwoven fabrics are composed of fibers composed of a polyolefin composition. The polyolefin composition is composed of a propylene polymer and up to about 50 wt. %, based on the weight of the fiber, of a hydrocarbon resin. Fibers prepared from polyolefin compositions exhibit favorable elongation properties. Such fibers exhibit advantageous processing and enhanced levels of softness, durability, and elasticity, even at high spinning speeds required for preparing fine fibers.

US Patent:

7998579, Aug 16, 2011

Filed:

Apr 29, 2005

Appl. No.:

11/119193

Inventors:

Chon Yie Lin - Houston TX, US
Bryan Robert Chapman - Annandale NJ, US
Chia Yung Cheng - Seabrook TX, US
William Michael Ferry - Houston TX, US
Michael Brian Kelly - Kingwood TX, US
Bruce Robert Lundmark - Waller TX, US
Wen Li - Houston TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B32B 27/32

US Classification:

428394, 428364, 442327, 442361

Abstract:

The present invention relates to fibers and nonwovens made from plasticized polyolefin compositions comprising a polyolefin, a non-functionalized hydrocarbon plasticizer and a slip agent.

US Patent:

8013093, Sep 6, 2011

Filed:

Nov 12, 2004

Appl. No.:

10/987670

Inventors:

Sudhin Datta - Houston TX, US
Chia Yung Cheng - Seabrook TX, US
Srivatsan Srinivas - Pearland TX, US
Abdelhadi Sahnoune - Houston TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08F 210/16
C08F 236/00
C08F 236/20

US Classification:

526339, 526335, 526281, 526280, 5253317, 525387, 442398

Abstract:

The present invention is directed generally to the use of propylene-based elastomers in articles. The propylene-based elastomers have isotactic polypropylene crystallinity, a melting point by DSC of 110 C. or less, a heat of fusion of from 5 to 50 J/g, and comprise at least 75 wt % propylene-derived units, at least 6 wt % ethylene-derived units, and optionally diene-derived units. The present invention is also directed to processes for making articles comprising propylene-based elastomers.

US Patent:

8101534, Jan 24, 2012

Filed:

Nov 9, 2007

Appl. No.:

11/938030

Inventors:

Narayanaswami Raja Dharmarajan - Houston TX, US
Vincent B. Gallez - Ottignies Louvain-La-Neuve, BE
Smita Kacker - Houston TX, US
Chia Yung Cheng - Seabrook TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

D04H 3/00

US Classification:

442327, 442328, 442329, 525240

Abstract:

A non-woven fabric made from a composition prepared by combining a first propylene-based polymer blend, where the first polymer blend is prepared by combining a propylene-based elastomer with a propylene-based thermoplastic resin and where the first blend has an MFR (ASTM D-1238 2. 16 kg @ 230 C. ) equal to or less than 50 dg/min, with a second propylene-based polymer blend, where the second polymer blend is prepared by combining a propylene-based elastomer with a propylene-based thermoplastic resin and where said second blend has an MFR (ASTM D-1238 2. 16 kg @ 230 C. ) greater than 50 dg/min, where the propylene-based elastomers comprise from about 5% to 35% by weight units derived from ethylene or non-propylene alpha-olefin and have a heat of fusion, as determined by DSC, of less than 80 J/g, and where the propylene-based thermoplastic resins have a heat of fusion, as determined by DSC, equal to or greater than 80 J/g.