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"Method Of Increasing Filler Content In Papermaking"
Abstract: The invention provides a method of producing paper with a higher proportion of mineral filler particles than is otherwise be possible without the expected loss in paper strength. The method allows for the use of the greater amount of filler particles by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a strength additive. The strength additive holds the cellulose fibers together tightly and is not wasted on the filler particles. The method is particularly effective when the filler particles are a PCC-GCC blend and when the GCC particles are coated with the adherence preventing coating.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
19 April 2011
Publication Number
12/2012
Publication Type
INA
Invention Field
TEXTILE
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2018-06-19
Renewal Date
Applicants
NALCO COMPANY
1601 WEST DIEHL ROAD, NAPERVILLE, ILLINOIS 60563-1198, UNITED STATES OF AMERICA
Inventors
1. CHENG, WEIGUO
45 SOUTH NAPERVILLE BLVD., APT. 30, NAPERVILLE ILLINOIS 60540, UNITED STATES OF AMERICA;
2. LI, JUN;
LAO HU TOU ELEMETARY SCHOOL OF HUANGSHI, HUANGSHI, HUBEI 435000, CHINA;
3. ZHAO, YULIN;
2-3A REGENT ON THE PARK NO. 318, CHANG JIANG ROAD, NEW DISTRICT SUZHOU, JIANGSU 215011, CHINA;
4. RAO, QING LONG;
APARTMENT 134-905 TONGJING ROAD, XINKANG GARDEN, SUZHOU, JIANGSU 215007, CHINA;
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 2882-delnp-2011-Form-18-(27-04-2011).pdf | 2011-04-27 |
| 1 | 2882-DELNP-2011-RELEVANT DOCUMENTS [03-10-2023(online)].pdf | 2023-10-03 |
| 2 | 2882-delnp-2011-Correspondence Others-(27-04-2011).pdf | 2011-04-27 |
| 2 | 2882-DELNP-2011-RELEVANT DOCUMENTS [26-09-2022(online)].pdf | 2022-09-26 |
| 3 | 2882-DELNP-2011-RELEVANT DOCUMENTS [21-07-2021(online)].pdf | 2021-07-21 |
| 3 | 2882-delnp-2011-Form-3-(02-06-2011).pdf | 2011-06-02 |
| 4 | 2882-DELNP-2011-RELEVANT DOCUMENTS [27-03-2020(online)].pdf | 2020-03-27 |
| 4 | 2882-delnp-2011-Correspondence Others-(02-06-2011).pdf | 2011-06-02 |
| 5 | 2882-DELNP-2011-RELEVANT DOCUMENTS [25-03-2020(online)].pdf | 2020-03-25 |
| 5 | 2882-delnp-2011-Correspondence Others-(10-10-2011).pdf | 2011-10-10 |
| 6 | 2882-DELNP-2011-RELEVANT DOCUMENTS [26-03-2019(online)].pdf | 2019-03-26 |
| 6 | 2882-delnp-2011-Assignment-(10-10-2011).pdf | 2011-10-10 |
| 7 | 2882-DELNP-2011-RELEVANT DOCUMENTS [14-03-2019(online)].pdf | 2019-03-14 |
| 7 | 2882-delnp-2011-Form-5.pdf | 2011-12-21 |
| 8 | 2882-DELNP-2011-IntimationOfGrant19-06-2018.pdf | 2018-06-19 |
| 8 | 2882-delnp-2011-Form-3.pdf | 2011-12-21 |
| 9 | 2882-delnp-2011-Form-2.pdf | 2011-12-21 |
| 9 | 2882-DELNP-2011-PatentCertificate19-06-2018.pdf | 2018-06-19 |
| 10 | 2882-DELNP-2011-CLAIMS [12-01-2018(online)].pdf | 2018-01-12 |
| 10 | 2882-delnp-2011-Form-1.pdf | 2011-12-21 |
| 11 | 2882-DELNP-2011-COMPLETE SPECIFICATION [12-01-2018(online)].pdf | 2018-01-12 |
| 11 | 2882-delnp-2011-Drawings.pdf | 2011-12-21 |
| 12 | 2882-delnp-2011-Description (Complete).pdf | 2011-12-21 |
| 12 | 2882-DELNP-2011-DRAWING [12-01-2018(online)].pdf | 2018-01-12 |
| 13 | 2882-delnp-2011-Correspondence Others.pdf | 2011-12-21 |
| 13 | 2882-DELNP-2011-FER_SER_REPLY [12-01-2018(online)].pdf | 2018-01-12 |
| 14 | 2882-delnp-2011-Claims.pdf | 2011-12-21 |
| 14 | 2882-DELNP-2011-FORM 3 [12-01-2018(online)].pdf | 2018-01-12 |
| 15 | 2882-delnp-2011-Abstract.pdf | 2011-12-21 |
| 15 | 2882-DELNP-2011-OTHERS [12-01-2018(online)].pdf | 2018-01-12 |
| 16 | 2882-delnp-2011-GPA-(13-12-2012).pdf | 2012-12-13 |
| 16 | 2882-DELNP-2011-PETITION UNDER RULE 137 [12-01-2018(online)].pdf | 2018-01-12 |
| 17 | 2882-DELNP-2011-FER.pdf | 2017-07-12 |
| 17 | 2882-delnp-2011-Correspondence Others-(13-12-2012).pdf | 2012-12-13 |
| 18 | 2882-delnp-2011-Correspondence Others-(13-12-2012).pdf | 2012-12-13 |
| 18 | 2882-DELNP-2011-FER.pdf | 2017-07-12 |
| 19 | 2882-delnp-2011-GPA-(13-12-2012).pdf | 2012-12-13 |
| 19 | 2882-DELNP-2011-PETITION UNDER RULE 137 [12-01-2018(online)].pdf | 2018-01-12 |
| 20 | 2882-delnp-2011-Abstract.pdf | 2011-12-21 |
| 20 | 2882-DELNP-2011-OTHERS [12-01-2018(online)].pdf | 2018-01-12 |
| 21 | 2882-delnp-2011-Claims.pdf | 2011-12-21 |
| 21 | 2882-DELNP-2011-FORM 3 [12-01-2018(online)].pdf | 2018-01-12 |
| 22 | 2882-delnp-2011-Correspondence Others.pdf | 2011-12-21 |
| 22 | 2882-DELNP-2011-FER_SER_REPLY [12-01-2018(online)].pdf | 2018-01-12 |
| 23 | 2882-delnp-2011-Description (Complete).pdf | 2011-12-21 |
| 23 | 2882-DELNP-2011-DRAWING [12-01-2018(online)].pdf | 2018-01-12 |
| 24 | 2882-delnp-2011-Drawings.pdf | 2011-12-21 |
| 24 | 2882-DELNP-2011-COMPLETE SPECIFICATION [12-01-2018(online)].pdf | 2018-01-12 |
| 25 | 2882-DELNP-2011-CLAIMS [12-01-2018(online)].pdf | 2018-01-12 |
| 25 | 2882-delnp-2011-Form-1.pdf | 2011-12-21 |
| 26 | 2882-delnp-2011-Form-2.pdf | 2011-12-21 |
| 26 | 2882-DELNP-2011-PatentCertificate19-06-2018.pdf | 2018-06-19 |
| 27 | 2882-delnp-2011-Form-3.pdf | 2011-12-21 |
| 27 | 2882-DELNP-2011-IntimationOfGrant19-06-2018.pdf | 2018-06-19 |
| 28 | 2882-delnp-2011-Form-5.pdf | 2011-12-21 |
| 28 | 2882-DELNP-2011-RELEVANT DOCUMENTS [14-03-2019(online)].pdf | 2019-03-14 |
| 29 | 2882-delnp-2011-Assignment-(10-10-2011).pdf | 2011-10-10 |
| 29 | 2882-DELNP-2011-RELEVANT DOCUMENTS [26-03-2019(online)].pdf | 2019-03-26 |
| 30 | 2882-delnp-2011-Correspondence Others-(10-10-2011).pdf | 2011-10-10 |
| 30 | 2882-DELNP-2011-RELEVANT DOCUMENTS [25-03-2020(online)].pdf | 2020-03-25 |
| 31 | 2882-DELNP-2011-RELEVANT DOCUMENTS [27-03-2020(online)].pdf | 2020-03-27 |
| 31 | 2882-delnp-2011-Correspondence Others-(02-06-2011).pdf | 2011-06-02 |
| 32 | 2882-DELNP-2011-RELEVANT DOCUMENTS [21-07-2021(online)].pdf | 2021-07-21 |
| 32 | 2882-delnp-2011-Form-3-(02-06-2011).pdf | 2011-06-02 |
| 33 | 2882-DELNP-2011-RELEVANT DOCUMENTS [26-09-2022(online)].pdf | 2022-09-26 |
| 33 | 2882-delnp-2011-Correspondence Others-(27-04-2011).pdf | 2011-04-27 |
| 34 | 2882-DELNP-2011-RELEVANT DOCUMENTS [03-10-2023(online)].pdf | 2023-10-03 |
| 34 | 2882-delnp-2011-Form-18-(27-04-2011).pdf | 2011-04-27 |
Search Strategy
| 1 | Searchstrategy_18-05-2017.pdf |