Yu Nian Wang

US Patent:

6432546, Aug 13, 2002

Filed:

Jul 24, 2000

Appl. No.:

09/624527

Inventors:

Yu Wang - Greenbelt MD
Jeffrey M. Finder - Chandler AZ
Kurt Eisenbeiser - Tempe AZ
Zhiyi Yu - Gilbert AZ
Ravindranath Droopad - Chandler AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

B32B 900

US Classification:

428448, 428446, 428469, 428472, 428697, 428688, 428699, 428700, 428701, 428702

Abstract:

A high quality epitaxial layer of monocrystalline Pb(Zr,Ti)O can be grown overlying large silicon wafers by first growing an strontium titanate layer on a silicon wafer. The strontium titanate layer is a monocrystalline layer spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide.

US Patent:

6545101, Apr 8, 2003

Filed:

Feb 6, 2001

Appl. No.:

09/777398

Inventors:

Pawan Kumar Agarwal - Houston TX
Hsien-Chang Wang - Bellaire TX
Yu Feng Wang - Houston TX
Jean M. J. Frechet - Oakland CA
Shah A. Haque - Houston TX

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08F 1000

US Classification:

5253337, 525337, 525366, 525403, 525409, 5263486, 5263487, 528372, 528402

Abstract:

Polyisobutylene (PIB) functionalized with terminal reactive unsaturation is disclosed. Carbocationically polymerized monohalogen-terminated PIB is dehydrohalogenated in a hydrocarbon solvent using an alkoxide of the formula RO-M wherein R is alkyl of at least 5 carbon atoms and M is alkali metal. The PIB obtained has terminal unsaturation which is 100% in the reactive âexoâ form which can be converted to succinic anhydride groups (PIB-SA) by the ene reaction with maleic anhydride. The PIB-SA is reactive with amine functional dendrimers to obtain a star-branched polymer having a dendrimer core and PIB branches joined by succinimide linkages. Blends of the star-branched polymer with polypropylene have improved energy absorption properties and controllable moisture/oxygen permeabilities useful in films.

US Patent:

6750067, Jun 15, 2004

Filed:

Apr 19, 2002

Appl. No.:

10/126772

Inventors:

Yu Wang - Greenbelt MD
Jeffrey M. Finder - Chandler AZ
Kurt Eisenbeiser - Tempe AZ
Zhiyi Yu - Gilbert AZ
Ravindranath Droopad - Chandler AZ

Assignee:

Freescale Semiconductor, Inc. - Austin TX

International Classification:

H01L 2100

US Classification:

438 3, 438 96, 438480

Abstract:

A high quality epitaxial layer of monocrystalline Pb(Zr,Ti)O can be grown overlying large silicon wafers by first growing an strontium titanate layer on a silicon wafer. The strontium titanate layer is a monocrystalline layer spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide.

US Patent:

7858735, Dec 28, 2010

Filed:

May 29, 2009

Appl. No.:

12/475034

Inventors:

Richard C. Yeh - Bellaire TX, US
Yu Feng Wang - Houston TX, US
Jean-Paul Swoboda - Grandcamp, FR

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08F 6/00
C08J 3/00

US Classification:

528481, 523334, 523335, 524495

Abstract:

In the production of elastomers the product obtained from the polymerization process is often in the form of a slurry. Described herein are an apparatus and a process for “finishing” the elastomer, i. e. , dewatering and drying the elastomer. The process comprises the steps of obtaining a slurry comprising water and elastomer; passing the slurry through a first dewatering device to produce a wet elastomer crumb, wherein the first dewatering device comprises two dewatering extruders in parallel; passing the wet elastomer crumb through a second dewatering device; and then passing the wet elastomer crumb through a drying device to produce a dried elastomer crumb.

US Patent:

8524859, Sep 3, 2013

Filed:

Mar 23, 2011

Appl. No.:

13/070078

Inventors:

Yu Feng Wang - Houston TX, US
Richard C-M Yeh - Houston TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08F 6/00

US Classification:

528502F, 528480, 528497, 528502 R, 528503, 422258, 422259, 422260, 422608, 202175, 202216, 202238, 202265, 526 71, 526 72, 526335, 526348, 5263487

Abstract:

In the production of isobutylene-based elastomers the product obtained from the polymerization process is often in the form of a stream. Described herein are an apparatus and a process for removal of hydrocarbon liquids from the elastomer. The process comprises the steps of obtaining a stream comprising hydrocarbon liquids, either solvents or diluents, and an isobutylene-based elastomer; passing the stream through a kneader to volatize the hydrocarbon liquids from the elastomer.

US Patent:

20030050433, Mar 13, 2003

Filed:

Oct 23, 2002

Appl. No.:

10/278310

Inventors:

Pawan Agarwal - Houston TX, US
Hsien-Chang Wang - Bellaire TX, US
Yu Wang - Houston TX, US
Jean Frechet - Oakland CA, US
Shah Haque - Houston TX, US

International Classification:

C08G073/00

US Classification:

528/363000, 525/387000, 525/314000, 524/252000, 526/314000, 526/333000

Abstract:

Polyisobutylene (PIB) functionalized with terminal reactive unsaturation is disclosed. Carbocationically polymerized monohalogen-terminated PIB is dehydrohalogenated in a hydrocarbon solvent using an alkoxide of the formula RO-M wherein R is alkyl of at least 5 carbon atoms and M is alkali metal. The PIB obtained has terminal unsaturation which is 100% in the reactive ‘exo’ form which can be converted to succinic anhydride groups (PIB-SA) by the ene reaction with maleic anhydride. The PIB-SA is reactive with amine functional dendrimers to obtain a star-branched polymer having a dendrimer core and PIB branches joined by succinimide linkages. Blends of the star-branched polymer with polypropylene have improved energy absorption properties and controllable moisture/oxygen permeabilities useful in films.

US Patent:

20100012846, Jan 21, 2010

Filed:

Jul 30, 2008

Appl. No.:

12/518869

Inventors:

Yu Wang - Pearland TX, US

Assignee:

YU WANG - Pearland TX

International Classification:

G01T 1/161
G01T 1/20

US Classification:

250362, 250366, 25036304

Abstract:

A gamma ray detector module includes at least one scintillation detector configured to operate in a dot-decoding mode, or at least two scintillation detectors configured to operate in a line-decoding mode, wherein the at least one scintillation detector is each coupled to a single photodetector, and wherein the at least two scintillation detectors are coupled to at least two photodetectors arranged substantially along a line; and at least four scintillation detectors configured to operate in a plane-decoding mode, wherein the at least four scintillation detectors are coupled to a plurality of photodetectors arranged in a two-dimensional array.

US Patent:

20110162751, Jul 7, 2011

Filed:

Dec 1, 2010

Appl. No.:

12/958203

Inventors:

Brian Joseph Fitzgerald - Kingwood TX, US
Hyun-Woo Jin - Easton PA, US
Raghavan Ayer - Bridgewater NJ, US
Yu Feng Wang - Houston TX, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

F16L 9/14
B05D 1/36
B05D 3/02
B05D 5/00
B05D 7/00
C25D 3/56
C25D 7/04
C25D 9/00
B82Y 30/00

US Classification:

138145, 427256, 205238, 205318, 205316, 977734

Abstract:

Provided are coated petrochemical and chemical industry devices and methods of making and using such coated devices. In one form, the coated petrochemical and chemical industry device includes a petrochemical and chemical industry device including one or more bodies, and a coating on at least a portion of the one or more bodies, wherein the coating is chosen from an amorphous alloy, a heat-treated electroless or electro plated based nickel-phosphorous composite with a phosphorous content greater than 12 wt %, graphite, MoS, WS, a fullerene based composite, a boride based cermet, a quasicrystalline material, a diamond based material, diamond-like-carbon (DLC), boron nitride, and combinations thereof. The coated petrochemical and chemical industry devices may provide for reduced friction, wear, corrosion and other properties required for superior performance.

Author:

Yu San Wang

ISBN #:

0275900460

Author:

Yu S. Wang

ISBN #:

0275934713

Author:

Yu Michael Wang

ISBN #:

0791835138