Sign In to Follow Application
View All Documents & Correspondence

Method And Chemical Composition To Improve Efficiency Of Mechanical Pulp

Abstract: The invention provides a composition of matter and a method, which enhance the process of mechanically pulping paper precursors. The composition of matter includes a small quantity of a reducing agent and a source of alkali. When added to the pulped material, e.g., wood chips, before or during mechanical pulping, the composition reduces the energy cost of the operation. In addition, not only does the composition also does not reduce the brightness of pulp, the composition can also enhance the effectiveness of subsequent bleaching processes.

Get Free WhatsApp Updates!
Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
30 September 2011
Publication Number
52/2012
Publication Type
INA
Invention Field
TEXTILE
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2020-10-12
Renewal Date

Applicants

NALCO COMPANY
1601 W. DIEHL ROAD, NAPERVILLE, ILLINOIS 60563-1198, UNITED STATES OF AMERICA

Inventors

1. DUGGIRALA, PRASAD
2403 SISTERS COURT, NAPERVILLE, ILLINOIS 60564, UNITED STATES OF AMERICA
2. SHEVCHENKO, SERGEY M.
931 PARK HILL CIRCLE, AURORA, ILLINOIS 60502, UNITED STATES OF AMERICA

Specification

NA

Documents

Orders

Section Controller Decision Date

Application Documents

# Name Date
1 7540-delnp-2011-Form-3-(10-02-2012).pdf 2012-02-10
1 7540-DELNP-2011-RELEVANT DOCUMENTS [03-10-2023(online)].pdf 2023-10-03
2 7540-delnp-2011-Correspondence-Others-(10-02-2012).pdf 2012-02-10
2 7540-DELNP-2011-RELEVANT DOCUMENTS [24-09-2022(online)].pdf 2022-09-24
3 7540-DELNP-2011-RELEVANT DOCUMENTS [28-07-2021(online)].pdf 2021-07-28
3 7540-delnp-2011-GPA.pdf 2012-03-24
4 7540-DELNP-2011-IntimationOfGrant12-10-2020.pdf 2020-10-12
4 7540-delnp-2011-Form-5.pdf 2012-03-24
5 7540-DELNP-2011-PatentCertificate12-10-2020.pdf 2020-10-12
5 7540-delnp-2011-Form-3.pdf 2012-03-24
6 7540-DELNP-2011-Written submissions and relevant documents [29-09-2020(online)].pdf 2020-09-29
6 7540-delnp-2011-Form-2.pdf 2012-03-24
7 7540-DELNP-2011-PETITION UNDER RULE 138 [04-09-2020(online)].pdf 2020-09-04
7 7540-delnp-2011-Form-1.pdf 2012-03-24
8 7540-DELNP-2011-FORM 3 [20-08-2020(online)].pdf 2020-08-20
8 7540-delnp-2011-Description (Complete).pdf 2012-03-24
9 7540-delnp-2011-Correspondence Others.pdf 2012-03-24
9 7540-DELNP-2011-Correspondence to notify the Controller [18-08-2020(online)].pdf 2020-08-18
10 7540-delnp-2011-Claims.pdf 2012-03-24
10 7540-DELNP-2011-US(14)-HearingNotice-(HearingDate-21-08-2020).pdf 2020-07-10
11 7540-delnp-2011-Assignment.pdf 2012-03-24
11 7540-DELNP-2011-FORM 3 [13-04-2020(online)].pdf 2020-04-13
12 7540-delnp-2011-Abstract.pdf 2012-03-24
12 7540-DELNP-2011-CLAIMS [16-08-2018(online)].pdf 2018-08-16
13 7540-DELNP-2011-COMPLETE SPECIFICATION [16-08-2018(online)].pdf 2018-08-16
13 7540-DELNP-2011-FER.pdf 2018-04-20
14 7540-DELNP-2011-CORRESPONDENCE [16-08-2018(online)].pdf 2018-08-16
14 7540-DELNP-2011-Information under section 8(2) (MANDATORY) [03-08-2018(online)].pdf 2018-08-03
15 7540-DELNP-2011-FER_SER_REPLY [16-08-2018(online)].pdf 2018-08-16
15 7540-DELNP-2011-FORM 3 [03-08-2018(online)].pdf 2018-08-03
16 7540-DELNP-2011-OTHERS [16-08-2018(online)].pdf 2018-08-16
17 7540-DELNP-2011-FORM 3 [03-08-2018(online)].pdf 2018-08-03
17 7540-DELNP-2011-FER_SER_REPLY [16-08-2018(online)].pdf 2018-08-16
18 7540-DELNP-2011-Information under section 8(2) (MANDATORY) [03-08-2018(online)].pdf 2018-08-03
18 7540-DELNP-2011-CORRESPONDENCE [16-08-2018(online)].pdf 2018-08-16
19 7540-DELNP-2011-COMPLETE SPECIFICATION [16-08-2018(online)].pdf 2018-08-16
19 7540-DELNP-2011-FER.pdf 2018-04-20
20 7540-delnp-2011-Abstract.pdf 2012-03-24
20 7540-DELNP-2011-CLAIMS [16-08-2018(online)].pdf 2018-08-16
21 7540-delnp-2011-Assignment.pdf 2012-03-24
21 7540-DELNP-2011-FORM 3 [13-04-2020(online)].pdf 2020-04-13
22 7540-delnp-2011-Claims.pdf 2012-03-24
22 7540-DELNP-2011-US(14)-HearingNotice-(HearingDate-21-08-2020).pdf 2020-07-10
23 7540-delnp-2011-Correspondence Others.pdf 2012-03-24
23 7540-DELNP-2011-Correspondence to notify the Controller [18-08-2020(online)].pdf 2020-08-18
24 7540-DELNP-2011-FORM 3 [20-08-2020(online)].pdf 2020-08-20
24 7540-delnp-2011-Description (Complete).pdf 2012-03-24
25 7540-DELNP-2011-PETITION UNDER RULE 138 [04-09-2020(online)].pdf 2020-09-04
25 7540-delnp-2011-Form-1.pdf 2012-03-24
26 7540-DELNP-2011-Written submissions and relevant documents [29-09-2020(online)].pdf 2020-09-29
26 7540-delnp-2011-Form-2.pdf 2012-03-24
27 7540-DELNP-2011-PatentCertificate12-10-2020.pdf 2020-10-12
27 7540-delnp-2011-Form-3.pdf 2012-03-24
28 7540-DELNP-2011-IntimationOfGrant12-10-2020.pdf 2020-10-12
28 7540-delnp-2011-Form-5.pdf 2012-03-24
29 7540-DELNP-2011-RELEVANT DOCUMENTS [28-07-2021(online)].pdf 2021-07-28
29 7540-delnp-2011-GPA.pdf 2012-03-24
30 7540-DELNP-2011-RELEVANT DOCUMENTS [24-09-2022(online)].pdf 2022-09-24
30 7540-delnp-2011-Correspondence-Others-(10-02-2012).pdf 2012-02-10
31 7540-delnp-2011-Form-3-(10-02-2012).pdf 2012-02-10
31 7540-DELNP-2011-RELEVANT DOCUMENTS [03-10-2023(online)].pdf 2023-10-03

Search Strategy

1 searchstrategy_23-08-2017.pdf

ERegister / Renewals

3rd: 03 Dec 2020

From 04/03/2012 - To 04/03/2013

4th: 03 Dec 2020

From 04/03/2013 - To 04/03/2014

5th: 03 Dec 2020

From 04/03/2014 - To 04/03/2015

6th: 03 Dec 2020

From 04/03/2015 - To 04/03/2016

7th: 03 Dec 2020

From 04/03/2016 - To 04/03/2017

8th: 03 Dec 2020

From 04/03/2017 - To 04/03/2018

9th: 03 Dec 2020

From 04/03/2018 - To 04/03/2019

10th: 03 Dec 2020

From 04/03/2019 - To 04/03/2020

11th: 03 Dec 2020

From 04/03/2020 - To 04/03/2021

12th: 03 Dec 2020

From 04/03/2021 - To 04/03/2022

13th: 13 Jan 2022

From 04/03/2022 - To 04/03/2023

14th: 12 Jan 2023

From 04/03/2023 - To 04/03/2024

15th: 14 Jan 2024

From 04/03/2024 - To 04/03/2025

16th: 15 Jan 2025

From 04/03/2025 - To 04/03/2026