continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6600/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :30/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "RAPID DRYING OF FLUOROPOLYMER DISPERSION COATING COMPOSITIONS"
(51) International classification :C03C 25/30 (71)Name of Applicant :
(31) Priority Document No :60/778,265
1)E.I. DU PONT DE NEMOURS AND COMPANY
(32) Priority Date :02/03/2006
Address of Applicant :1007 MARKET STREET,
(33) Name of priority country :U.S.A.
WILMINGTON, DELAWARE 19898, U.S.A. U.S.A.
(86) International Application No :PCT/US2007/005462 (72)Name of Inventor :
Filing Date
:01/03/2007
1)JEFFREY TODD ENGLISH
(87) International Publication No :WO 2007/103228 2)DEVIN FLOWERS
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
3)RICHARD GEORGE HOECK
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
A process for making a fluoropolymer coated substrate comprising: applying an aqueous fluoropolymer dispersion coating
composition comprising an aqueous medium and fluoropolymer particles with a fluorosurfactant content of less than about 300 ppm to
a substrate to form a wet coating on the substrate, the aqueous fluoropolymer coating composition comprising added water soluble
salt; and drying the wet coating to form the fluoropolymer coated substrate by applying high frequency electromagnetic radiation to
the wet coating, the added water soluble salt being effective to decrease the time required to dry the wet coating on the substrate by at
least about 5% compared to an otherwise identical coating composition without the added water soluble salt.
No. of Pages : 28 No. of Claims : 21
The Patent Office Journal 24/10/2008 26049