Binder composition, comprising basic substances, for producing a lignocellulosic composite, respective process, use and products

A process for producing a lignocellulosic composite comprising one or more lignocellulosic composite layers, comprising at least the following steps:

• S1) providing or preparing a mixture, at least comprising:
• lignocellulosic particles and
• a binder composition, comprising as components at least:
• c1) one or more amino acid polymers having two or more primary amino groups, wherein the one or more amino acid polymers comprise or are one or more polylysines, wherein
• the one or more polylysines have a weight-average molecular weight Mw of 800 g/mol and
• comprise as monomers integrated in their polymer structure at least 85 mass-% of lysine monomers, based on the total mass of the polymer structure;
• c2) one or more alpha-hydroxy carbonyl compounds, wherein components c1) and c2) are a binder;
• and
• c3) one or more basic substances having a pKB-value of ≤3,
• S2) compacting the mixture from step S1) to receive a compacted mixture, and
• S3) applying heat and/or pressure to the mixture, so that the binder of the binder composition hardens and a lignocellulosic composite results.