Hua Wang

6365710, Apr 2, 2002

Aug 29, 2001

09/942065

Hua Wang - Clifton Park NY
Robert John Hossan - Delmar NY
Eric Thomas Gohr - Mt. Vernon IN

General Electric Company - Schenectady NY

C08G 600

528480, 528196, 528198, 528481, 528487, 528499, 528502

A method for removing volatile components from wet, solid polymeric materials on a vacuum vented extruder is described. Polymeric materials containing substantial amounts of water, 1-20 % by weight, are rapidly converted to polymer compositions containing less than about 0. 5% by weight water at high throughput rates while avoiding complications resulting from excessive steam backflow through the extruder feed throat. The method utilizes a screw design comprising only forward flighted screw elements in an initial polymer melting and kneading zone. Steam generated as the polymer is heated and sheared flows downstream to a first vacuum vent for removal. The partially devolatilized polymer melt is then subjected to additional kneading and vacuum venting. The claimed method converts wet polycarbonate powder containing residual methylene chloride to essentially dry polycarbonate powder containing less than about 1 ppm methylene chloride.

6572956, Jun 3, 2003

Aug 5, 1999

09/368705

James Edward Pickett - Schenectady NY
Randall Lee Carter - Clifton Park NY
Jimmy Lynn Webb - Ballston Lake NY
Daniel Robert Olson - Voorheesville NY
Frank Axel Hoefflin - Evansville NJ
Hua Wang - Clifton Park NY

General Electric Company - Niskayuna NY

C08L 6900

428212, 4284237, 428412, 525439, 528176, 528196, 528198

Substantially solvent-free multilayer articles characterized by excellent color retention and gloss retention, solvent resistance and recyclability comprise a substrate layer comprising a first material selected from the group consisting of a metal, ceramic, glass, a cellulosic material, a thermoset resin, and a thermoplastic resin, and a resinous coating layer which comprises resorcinol or alkylresorcinol isophthalate/terephthalate ester units. An intermediate layer may also be present.

6833096, Dec 21, 2004

Aug 29, 2001

09/942066

Hua Wang - Clifton Park NY
Eric Thomas Gohr - Mt. Vernon IN

General Electric Company - Niskayuna NY

B29C 4776

264102, 264211, 26421123

A method for removing volatile components from wet, polymer powders using a vacuum vented extruder is described. Polymer powders containing substantial amounts of water, 1-20% by weight, are rapidly converted to polymer compositions containing less than about 0. 5% by weight water at high throughput rates while avoiding complications resulting from excessive steam backflow through the extruder feed throat. The method provides a screw design comprising a powder seal section upstream of kneading and melting sections of the extruder. Steam generated as the polymer is heated flows downstream to one or more vacuum vents for removal. The partially devolatilized polymer melt is then subjected to additional melt kneading and vacuum venting. The method converts wet polycarbonate powder containing residual methylene chloride to essentially dry polycarbonate powder containing less than about 1 ppm methylene chloride.

6844071, Jan 18, 2005

Oct 6, 2003

10/681760

Hua Wang - Clifton Park NY, US
Glen Robert Tryson - Malden Bridge NY, US

General Electric Company - Niskayuna NY

B32B 2736

428412, 2641761, 264219

Disclosed are multilayer articles comprising (i) at least one polycarbonate layer, wherein the polycarbonate comprises structural units derived from at least one dihydroxy aromatic hydrocarbon; (ii) at least one polypropylene layer; and (iii) a tielayer between the polycarbonate layer and the polypropylene layer, wherein the tielayer comprises a copolymer with structural units derived from at least one alkenyl aromatic compound and at least one conjugated diene. Also disclosed are film pre-assemblies comprising a tielayer and either a polycarbonate or a polypropylene layer. Methods to make articles and pre-assemblies are also disclosed.

6868371, Mar 15, 2005

May 3, 1999

09/303409

Sandra Freedman Feldman - Niskayuna NY, US
Andrew Joseph Poslinski - Schenectady NY, US
Harsha Mysore Hatti - Schenectady NY, US
Craig Alan Cantello - Schenectady NY, US
James Louis Cifarelli - Schenectady NY, US
Kena Kimi Yokoyama - Latham NY, US
Grigoriy Aleksandrovich Shmigol - Cohoes NY, US
Hua Wang - Niskayuna NY, US
James Paul Barren - Scotia NY, US
Arthur Joseph Osborn - Catskill NY, US

General Electric Company - Schenectady NY

G06F017/10

703 2, 703 8, 703 6, 264 40, 264 75, 264161, 356406, 356450, 356456

A spatially-resolved spectrometer is used to measure streaking in molded sample plastic parts produced using a molding tool with various mold inserts which produce certain desired topological surface features upon these sample plastic parts. The measurements from one or more of these sample plastic parts are then provided to a computerized device which appropriately filters the data and calculates overall data shape, average peak and valley shift, and a quality number indicative of data slopes. These calculations are then used to determine an optimum set of ingredients and processing conditions to be used for the full-scale plastic part production.

6916528, Jul 12, 2005

May 30, 2003

10/452042

Hongyi Zhou - Niskayuna NY, US
Hua Wang - Clifton Park NY, US
John Frederick Graf - Ballston Lake NY, US

General Electric Company - Schenectady NY

B32B019/02
B32B027/06

428323, 428324, 428328, 428412, 428480

A silver multilayered film comprises at least one intermediate layer comprising a polymeric resin; a colorant composition and a flake composition, wherein the normal to the individual flakes are oriented at an average angle of about 0 to about 75 degrees with a normal to the multilayered film, and wherein the intermediate layer is located between a first layer and an second layer and further wherein the multilayered film has a lightness greater than or equal to about 60 and a change in lightness as a function of viewing angle of greater than or equal to about 40. A multilayered film comprises an intermediate layer disposed on and in intimate contact with a surface of a first layer and a second layer disposed on and intimate contact with a surface of the intermediate layer opposite the first layer, wherein the intermediate layer comprises a polymeric resin; a colorant composition and a flake composition, wherein the normal to the individual flakes are oriented at an average angle of about 0 to about 75 degrees with a normal to the multilayered film, and further wherein the multilayered film has a lightness greater than or equal to about 60 and a change of lightness as a function of viewing angle of greater than or equal to about 40.

7153576, Dec 26, 2006

Jan 20, 2004

10/761714

Hua Wang - Clifton Park NY, US
Joseph Anthony Suriano - Clifton Park NY, US
Chetan Jayantilal Parikh - Newburgh IN, US
Randall Todd Myers - Pittsfield MA, US

General Electric Company - Schenectady NY

B32B 27/36

428412, 428212, 428426, 4284231, 428457

Disclosed is a multilayer article assembly comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one aromatic dicarboxylic acid, (ii) a second layer comprising a polymer comprising carbonate structural units, (iii) an adhesive layer comprising a polyurethane, and (iv) an uncured thermoset or uncured cyclic oligomer substrate layer, wherein the coating layer is in contiguous contact with the second layer, and the adhesive layer is in contiguous contact with the second layer and the substrate layer. Also disclosed is a method for preparing said multilayer article assembly.

7270882, Sep 18, 2007

Dec 16, 2003

10/737944

Hua Wang - Clifton Park NY, US

General Electric Company - Schenectady NY

B32B 27/36

428412, 4284111, 524313, 2641761, 264219

Disclosed are weatherable multilayer articles comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one aromatic dicarboxylic acid, (ii) a second layer comprising a polymer comprising carbonate structural units, (iii) an adhesive tielayer comprising a copolymer with structural units derived from at least one alkenyl aromatic compound and at least one conjugated diene, and (iv) a substrate layer, wherein the coating layer is in contiguous contact with the second layer, and the adhesive tielayer is in contiguous contact with the second layer and the substrate layer. Also disclosed is a method for making the multilayer article.