Invention Grant
- Patent Title: Method for producing a cellulose product
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Application No.: US17049842Application Date: 2019-04-17
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Publication No.: US11717993B2Publication Date: 2023-08-08
- Inventor: Linus Larsson , Ove Larsson
- Applicant: PulPac AB
- Applicant Address: SE Västra Frölunda
- Assignee: PulPac AB
- Current Assignee: PulPac AB
- Current Assignee Address: SE Västra Frölunda
- Agency: Marshall, Gerstein & Borun LLP
- Priority: SE 504951 2018.04.25
- International Application: PCT/SE2019/050357 2019.04.17
- International Announcement: WO2019/209160A 2019.10.31
- Date entered country: 2020-10-22
- Main IPC: B29C43/18
- IPC: B29C43/18 ; B29C43/20 ; B29C51/00 ; B29K1/00 ; B29K23/00 ; B29K67/00 ; B29K77/00 ; B29K101/12 ; B29K309/00

Abstract:
A method for producing a cellulose product from a multi-layer cellulose blank structure, wherein the method comprises the steps; forming the multi-layer cellulose blank structure from at least a first layer of dry-formed cellulose fibres and a second layer of a cellulose fibre web structure, through arranging the at least first layer and second layer in a superimposed relationship to each other and in the superimposed relationship arranging the at least first layer and second layer in contact with each other; arranging the multi-layer cellulose blank structure in a forming mould; heating the multi-layer cellulose blank structure to a forming temperature in the range of 100° C. to 300° C., and forming the cellulose product from the multi-layer cellulose blank structure in the forming mould, by pressing the heated multi-layer cellulose blank structure with an isostatic forming pressure of at least 1 MPa, preferably 4-20 MPa, wherein the multi-layer cellulose blank structure is shaped into a two-dimensional or three-dimensional fibre composite structure having a single-layer configuration.
Public/Granted literature
- US20210069942A1 A METHOD FOR PRODUCING A CELLULOSE PRODUCT Public/Granted day:2021-03-11
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