Invention Grant
- Patent Title: Smooth and low density paperboard structures and methods for manufacturing the same
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Application No.: US17683454Application Date: 2022-03-01
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Publication No.: US11697908B2Publication Date: 2023-07-11
- Inventor: Sergio A. Giuste , Steven Parker , Terrell J. Green
- Applicant: WestRock MWV, LLC
- Applicant Address: US GA Atlanta
- Assignee: WestRock MWV, LLC
- Current Assignee: WestRock MWV, LLC
- Current Assignee Address: US GA Atlanta
- Agency: Walters & Wasylyna LLC
- The original application number of the division: US16869156 2020.05.07
- Main IPC: D21H19/58
- IPC: D21H19/58 ; D21G1/02 ; D21H19/38 ; D21H19/40 ; D21H19/54 ; D21H19/82 ; D21H23/30

Abstract:
A method for manufacturing a paperboard structure includes passing a paperboard substrate through a hot-hard calender to yield a calendered paperboard substrate, the hot-hard calender including a nip defined by a thermo-roller and a counter roller, wherein a contact surface of the thermo-roller is heated to an elevated temperature. The method then includes applying a basecoat to the calendered paperboard substrate to yield a basecoated paperboard substrate, the basecoat includes a basecoat binder and a basecoat pigment blend. The method further includes applying a topcoat to the basecoated paperboard substrate.
Public/Granted literature
- US20220267961A1 SMOOTH AND LOW DENSITY PAPERBOARD STRUCTURES AND METHODS FOR MANUFACTURING THE SAME Public/Granted day:2022-08-25
Information query
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