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COLD-SET BIOBASED LAMINATING ADHESIVE FOR PAPER OR PAPERBOARD PRODUCTS, AND PACKAGING MATERIALS
COLD-SET BIOBASED LAMINATING ADHESIVE FOR PAPER OR PAPERBOARD PRODUCTS, AND PACKAGING MATERIALS
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机译:用于纸或纸板产品以及包装材料的冷固生物基层压胶
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摘要
This specification relates to cold-set biobased adhesive compositions, comprising aqueous formulations of biopolymers, optionally with alkaline additives, optionally fortified with high-aspect-ratio inorganic and organic fillers, fibers and nanofibers, optionally with barrier-inducing additives. The adhesive may be used, for example, as a cold-set, preferably biobased, laminating adhesive. In particular, the laminating adhesive may be used to create liner and/or medium paperboard products for light-weight paperboard and corrugated boxboard materials that, in some examples, have enhanced strength and/or barrier properties as compared with similar weight paperboard products. These laminated paperboard and corrugated boxboard materials are used, for example, as light weight packaging materials that are compatible with paper recycling and composting operations. In the context of this abstract, the term "lamination" or "laminating" relates to the adhesion of two flat (rather than pre- corrugated) paper surfaces, i.e. the gluing together of two continuous sheets of paper or liner or medium paperboard.
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