Dan Qing Wu
Real Estate Commission in West Chester, PA
License number
Pennsylvania RS-0023757
Issued Date
Feb 8, 2016
Expiration Date
Apr 30, 2018
Category
Real Estate
Type
Salesperson
Address
Address
2
West Chester, PA 19382
Professional information
Printing Ink Having Enhanced Gloss And Lower Viscosity
US Patent:
2013007, Mar 28, 2013
Filed:
Jun 28, 2011
Appl. No.:
13/702592
Inventors:
Daniel C Kraiter - Wilmington DE, US
Dan Qing Wu - West Chester PA, US
Dan Qing Wu - West Chester PA, US
Assignee:
E I DuPont Nemours and Company - Wilmington DE
International Classification:
C09D 11/10
US Classification:
524430, 977773
Abstract:
This disclosure relates to ink composition, having a viscosity of 0.02-13 Poise, comprising an inorganic pigment surface treated with alumina and at least one silicon based surface treatment selected from the group consisting of polysiloxane and polysiloxane block polymer to form a treated inorganic pigment, wherein the silicon based surface treatment is present in the amount of about 0.3 to about 1%, based on the total weight of the treated inorganic pigment; a binder resin having a glass transition temperature of less than 50° C., and comprising at least one adhesion promoting group; and a solvent based ink vehicle having the following solubility parameters using the MPaunits: σof greater than about 15.9, a σof less than about 9.1 and a σof less than about 12.1. These inks have enhanced gloss and lower viscosity characteristics.
Fluorochemical And Lecithin Additive For Coatings
US Patent:
2008004, Feb 28, 2008
Filed:
Sep 7, 2007
Appl. No.:
11/899880
Inventors:
Jessica Yen - Greenville DE, US
Mia Berrettini - Wilmington, DE
John Gavenonis - Wilmington, DE
Xianjun Meng - Hockessin, DE
Dan Wu - West Chester PA, US
Mia Berrettini - Wilmington, DE
John Gavenonis - Wilmington, DE
Xianjun Meng - Hockessin, DE
Dan Wu - West Chester PA, US
International Classification:
C09D 189/06
US Classification:
106124620
Abstract:
Coating compositions comprise a coating base, a lecithin additive and a fluorochemical wherein the coating base is an alkyd coating, urethane resin coating, unsaturated polymer coating, latex coating or water-dispersed coating. The combination of a lecithin additive and fluorochemical imparts, to a coating composition, significantly improved cleanability and/or oil repellency (as measured by higher contact angles) compared to the individual ingredients alone.
Coating Compositions Having Improved Solar Reflectivity And Uv Protection
US Patent:
2011015, Jun 23, 2011
Filed:
Sep 29, 2009
Appl. No.:
13/060361
Inventors:
Dan Qing Wu - West Chester PA, US
Joy Sawyer Bloom - Wilmington DE, US
Joy Sawyer Bloom - Wilmington DE, US
Assignee:
E.I. DU PONT DE NEMOURS AND COMPANY - Wilmington DE
International Classification:
B32B 25/02, B32B 5/16, C08K 3/22, C09D 1/00
US Classification:
428325, 524497, 10628719, 10628716
Abstract:
The disclosure provides a coating composition for outdoor applications having improved solar reflectivity and UV protection comprising a coating base, wherein the coating base comprises: (a) a colorant; and (b) an ultrafine-TiOhaving a median primary particle size (MPPS) of greater than about 70 nm.
Paper Laminates Having Improved Easy Clean And Abrasion Resistance Properties
US Patent:
8486219, Jul 16, 2013
Filed:
Jun 17, 2009
Appl. No.:
12/992920
Inventors:
Dan Qing Wu - West Chester PA, US
Jessica Chen-Ying Yen - Greenville DE, US
Jessica Chen-Ying Yen - Greenville DE, US
Assignee:
E I du Pont de Nemours and Company - Wilmington DE
International Classification:
B29C 65/00, B31B 1/60, B32B 37/00, C09J 4/00, C09J 101/00, C09J 201/00
US Classification:
1563317, 156 60
Abstract:
The present disclosure pertains to a process for preparing a laminate comprising: providing a dried overlay and a base sheet wherein at least one of the dried overlay and the base sheet comprises a resin-impregnated, opaque, cellulose pulp-based sheet; applying a fluorourethane to the dried overlay to form a treated overlay; drying the treated overlay; and laminating the treated overlay to the base sheet. The disclosed process hereby produces a laminate whose outer surface is modified with the fluorourethane and the cleanability, oil repellency, and abrasion resistance of such a laminate is improved.
Fluorochemical And Lecithin Additive For Coatings
US Patent:
2007021, Sep 13, 2007
Filed:
Apr 4, 2006
Appl. No.:
11/398154
Inventors:
Jessica Yen - Greenville DE, US
Mia Berrettini - Wilmington DE, US
John Gavenonis - Wilmington DE, US
Xianjun Meng - Hockessin DE, US
Dan Wu - West Chester PA, US
Mia Berrettini - Wilmington DE, US
John Gavenonis - Wilmington DE, US
Xianjun Meng - Hockessin DE, US
Dan Wu - West Chester PA, US
International Classification:
C08F 2/46, B05D 1/40, C08K 5/52
US Classification:
427331000, 106002000, 106124620, 524145000, 524462000
Abstract:
Coating compositions comprise a coating base, a lecithin additive and a fluorochemical wherein the coating base is an alkyd coating, urethane resin coating, unsaturated polymer coating, latex coating or water-dispersed coating; wherein a dried coating resulting from said coating composition has an advancing hexadecane contact angle of at least about 50 degrees and demonstrates improved cleanability in a Lenata oil stain test are disclosed. Preferably the lecithin additive is acylated, most preferably the lecithin additive is acetylated.
Fluorochemical And Lecithin Additive For Coatings
US Patent:
2007021, Sep 13, 2007
Filed:
Mar 8, 2006
Appl. No.:
11/370553
Inventors:
Jessica Yen - Greenville DE, US
Mia Berrettini - Wilmington DE, US
John Gavenonis - Wilmington DE, US
Xianjun Meng - Hockessin DE, US
Dan Wu - West Chester PA, US
Mia Berrettini - Wilmington DE, US
John Gavenonis - Wilmington DE, US
Xianjun Meng - Hockessin DE, US
Dan Wu - West Chester PA, US
International Classification:
B32B 27/30, C08K 5/51
US Classification:
428500000, 524148000
Abstract:
Coating compositions containing a lecithin additive and a fluorochemical wherein the composition is an alkyd coating, urethane resin coating, unsaturated polymer coating, latex coating or water-dispersed coating composition; wherein a dried coating resulting from said coating composition has an advancing hexadecane contact angle of at least about 50 degrees and demonstrates improved cleanability in a Lenata oil stain test are disclosed. Preferably the lecithin additive is acylated, most preferably the lecithin additive is acetylated.
Lecithin Additive For Coatings
US Patent:
2007021, Sep 13, 2007
Filed:
Mar 8, 2006
Appl. No.:
11/370554
Inventors:
Jessica Yen - Greenville DE, US
Mia Berrettini - Wilmington DE, US
John Gavenonis - Wilmington DE, US
Xianjun Meng - Hockessin DE, US
Dan Wu - West Chester PA, US
Mia Berrettini - Wilmington DE, US
John Gavenonis - Wilmington DE, US
Xianjun Meng - Hockessin DE, US
Dan Wu - West Chester PA, US
International Classification:
B32B 27/40, B32B 27/32, C08K 5/51
US Classification:
428423100, 524148000, 428500000
Abstract:
Coating compositions, particularly latex and flat-based coatings, containing lecithin, including but not limited to acylated lecithin and acetylated lecithin, wherein the dried coating has durable improved cleanability and durable improved oil repellency is disclosed.