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US 2026/0176464 A1Published application
A biopolymer adhesive system and a method of separately applying parts of the biopolymer adhesive system
AssigneeStora Enso OYJ
InventorsYOUSEF NASLI BAKIR, Benyahia Nasli Bakir
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Abstract
The present invention relates to a biopolymer adhesive system where its parts contain bio-based components and a method of separately applying said parts of the biopolymer adhesive system, wherein the viscosity and distance between the parts are specified to certain parameters when applying onto substrate and usage thereof.
Claims19
A method of applying a biopolymer adhesive system, comprising applying in any order onto at least one substrate:
- i) at least one biopolymer part comprising at least one biopolymer component in aqueous solution form, wherein said at least one biopolymer component is selected from a group consisting of:
- tannin, lignin, starch and other carbohydrate, and mixtures thereof;
- ii) at least one bio-crosslinker part comprising at least one bio-crosslinker component in aqueous solution form, wherein said at least one bio-crosslinker component is selected from a group consisting of one or more of a glycidyl ether;
- wherein a viscosity of the at least one biopolymer part, or the at least one bio-crosslinker part, or both is below 6,000 mPas, and
- wherein the at least one biopolymer part and the at least one bio-crosslinker part are applied separately onto at least one substrate with a distance of less than 5 mm between the at least one biopolymer part and the at least one bio-crosslinker part, as a strand, or by spraying, or roller, or curtain or with at least two hollow members, one member for each part, or any combination thereof.
2 more elements
A kit comprising:
- i) a biopolymer part in aqueous solution form comprising at least one biopolymer component selected from a group consisting of:
- tannin, lignin, starch and other carbohydrate, and mixtures thereof, ii) a bio-crosslinker part in aqueous solution form comprising at least one biopolymer component selected from a group consisting of:
- one or more of glycidyl ethers, and
- instructions for said kit,
- wherein either the biopolymer part, the bio-crosslinker part, or both parts have a viscosity between 50 mPas and 6,000 mPas, and
- wherein said instructions recite that the biopolymer part and the bio-crosslinker part are applied separately onto at least one substrate.
3 more elements
(canceled)
Dependencies are inferred from the claim text.