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A continuous process for preparing polysilicate microgels comprising:(a) contacting a feed stream comprising a silica source, wherein the silica source is selected from the group consisting of an aqueous solution of a water soluble silicate and a colloidal silica sol, with a feed stream comprising carbon dioxide in a contacting vessel to produce a mixture; and(b) aging the mixture in an aging vessel to partially gel the mixture to produce an aged mixture,wherein the contacting step, the aging step, or both, is performed at a pressure of at least 172 kPa.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
30 May 2002
Publication Number
Publication Type
Invention Field
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2005-09-20
Renewal Date
Applicants
INTERLATES LIMITED
CLECKHEATON ROAD,
LOW MOOR, BRADFORD,
BD12 0JZ,
ENGLAND
EKA CHEMICALS (AC) LIMITED
304 WORLE PARKWAY,
WESTON-SUPER-MARE,
AVON, BS22 OWA
UNITED KINGDOM
Inventors
1. ROBERT HARVEY MOFFETT
6 CROSSAN COURT,
LANDENBERG,
PA 19350
UNITED STATES OF AMERICA
2. WALTER JOHN SIMMONS
451 SCRABBLE ROAD,
MARTINSBURG,
WV 25401,
UNITED STATES OF AMERICA.
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | in-pct-2002-00707-mum-power of authority(11-11-2004).pdf | 2004-11-11 |
| 2 | in-pct-2002-00707-mum-petition under rule 138(11-11-2004).pdf | 2004-11-11 |
| 3 | in-pct-2002-00707-mum-petition under rule 137(11-11-2004).pdf | 2004-11-11 |
| 3 | in-pct-2002-00707-mum-claims(granted)-(25-1-2005).doc | 2018-08-08 |
| 4 | in-pct-2002-00707-mum-form 5(11-11-2004).pdf | 2004-11-11 |
| 5 | in-pct-2002-00707-mum-form 3(11-11-2004).pdf | 2004-11-11 |
| 6 | in-pct-2002-00707-mum-form 1a(11-11-2004).pdf | 2004-11-11 |
| 7 | in-pct-2002-00707-mum-form 13(23-11-2004).pdf | 2004-11-23 |
| 8 | IN-PCT-2002-00707-MUM-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(28-11-2008).pdf | 2008-11-28 |
| 9 | IN-PCT-2002-00707-MUM-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(28-10-2009).pdf | 2009-10-28 |
| 10 | Form 27 [08-01-2016(online)].pdf | 2016-01-08 |
| 11 | Form 27 [03-01-2017(online)].pdf | 2017-01-03 |
| 12 | Form 27 [27-03-2017(online)].pdf | 2017-03-27 |
| 13 | IN-PCT-2002-00707-MUM-RELEVANT DOCUMENTS [04-01-2018(online)].pdf | 2018-01-04 |
| 14 | in-pct-2002-00707-mum-power of authority(5-7-2002).pdf | 2018-08-08 |
| 15 | in-pct-2002-00707-mum-power of authority(4-7-2002).pdf | 2018-08-08 |
| 16 | in-pct-2002-00707-mum-form-pct-isa-210(30-5-2002).pdf | 2018-08-08 |
| 17 | in-pct-2002-00707-mum-form-pct-ipea-409(30-5-2002).pdf | 2018-08-08 |
| 18 | in-pct-2002-00707-mum-form 3(30-5-2002).pdf | 2018-08-08 |
| 19 | in-pct-2002-00707-mum-form 2(granted)-(25-1-2005).pdf | 2018-08-08 |
| 21 | in-pct-2002-00707-mum-form 1a(30-5-2002).pdf | 2018-08-08 |
| 22 | in-pct-2002-00707-mum-form 19(16-3-2004).pdf | 2018-08-08 |
| 23 | in-pct-2002-00707-mum-form 13(25-1-2005).pdf | 2018-08-08 |
| 24 | IN-PCT-2002-00707-MUM-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(2-11-2012).pdf | 2018-08-08 |
| 25 | in-pct-2002-00707-mum-correspondence(ipo)-(20-9-2005).pdf | 2018-08-08 |
| 26 | in-pct-2002-00707-mum-correspondence(25-1-2005).pdf | 2018-08-08 |
| 27 | in-pct-2002-00707-mum-claims(granted)-(25-1-2005).pdf | 2018-08-08 |
| 29 | in-pct-2002-00707-mum-cancelled pages(25-1-2005).pdf | 2018-08-08 |
| 30 | IN-PCT-2002-00707-MUM-RELEVANT DOCUMENTS [03-01-2019(online)].pdf | 2019-01-03 |