Patents
US 9920484 B2: Surface enhanced pulp fibers at a substrate surface
- Granted
- 2018-03-20
- Filed
- 2015-02-20 application 15120220
- Type
- Utility · 23 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present invention relates to a method of making a paper product having improved printing characteristics. This is achieved by forming a fibrous substrate, and applying a surface treatment which comprises an aqueous composition. Notably, the aqueous composition includes surface enhanced pulp fibers, with the placement of the surface enhanced pulp fibers optimizing their functionality, with surface placement by use of a paper machine size press desirably facilitating a reduction in the typical starch usage. The present method comprising the steps of providing a aqueous slurry comprising a blend of cellulosic fibers and water and dewatering the aqueous slurry of cellulosic fibers and water to form a fibrous substrate. The present method further includes applying a surface treatment to the fibrous substrate, wherein the surface treatment comprises an aqueous composition including surface enhanced pulp fibers, to form a treated fibrous substrate, and thereafter drying the treated fibrous substrate to form a paper product having enhanced printing characteristics.
Source: PVGPATDIS, file of 2026-04-10 (ipg180320.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Domtar Paper Company LLC 21 patents | US company or organization | Fort Mill, SC | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Bruno Marcoccia | Charlotte, NC | 12 | PVGPATDIS, file of 2026-04-10 | |
| Harshad Pande | Rue du Bois des Loges, CA | 16 | PVGPATDIS, file of 2026-04-10 | |
| Robert M. Williams | Woodsfield, OH | 4 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| D21H | Pulp compositions; preparation thereof not covered by subclasses d21c or d21d; impregnating or coating of paper; treatment of finished paper not covered by class b31 or subclass d21g; paper not otherwise provided for | D21H19/54 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-01-30 | Security interest Security interest Security interest | RESOLUTE FP US INC. signed 2025-01-28 EAM CORPORATION signed 2025-01-28 DOMTAR PAPER COMPANY, LLC signed 2025-01-28 | BANK MANDIRI (EUROPE) LIMITED, AS THE COLLATERAL AGENT LONDON | 70059/666 | PASDL, file of 2026-10-15 |
| 2023-03-01 | Security interest Security interest Term loan patent security agreement | DOMTAR PAPER COMPANY, LLC signed 2023-03-01 | COBANK, ACB, AS COLLATERAL AGENT GREENWOOD VILLAGE, CO | 62902/610 | PASDL, file of 2026-10-15 |
| 2021-12-01 | Security interest Security interest Security agreement (notes) | DOMTAR PAPER COMPANY, LLC signed 2021-11-30 EAM CORPORATION signed 2021-11-30 | THE BANK OF NEW YORK MELLON, AS COLLATERAL AGENT NEW YORK, NY | 58294/43 | PASDL, file of 2026-10-15 |
| 2021-12-01 | Security interest Security interest Security agreement (first lien) | DOMTAR PAPER COMPANY, LLC signed 2021-11-30 EAM CORPORATION signed 2021-11-30 | BARCLAYS BANK PLC, AS COLLATERAL AGENT NEW YORK, NY | 58293/941 | PASDL, file of 2026-10-15 |
| 2021-12-01 | Security interest Security interest Security agreement (abl) | DOMTAR PAPER COMPANY, LLC signed 2021-11-30 EAM CORPORATION signed 2021-11-30 | BARCLAYS BANK PLC, AS COLLATERAL AGENT NEW YORK, NY | 58293/927 | PASDL, file of 2026-10-15 |
| 2016-10-20 | Assignment Assignment of assignor's interest | WILLIAMS, ROBERT M. signed 2016-08-18 PANDE, HARSHAD signed 2016-08-22 MARCOCCIA, BRUNO signed 2016-09-18 | DOMTAR PAPER COMPANY, LLC FORT MILL, SC | 40076/781 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.