BINDER COMPOSITIONS COMPRISING LIGNIN DERIVATIVES

摘要

The present disclosure provides an adhesive composition comprising derivatives of native lignin and an isocyanate-based binder such as methylene diphenyl diisocyanate. The present compositions may further comprise formaldehyde-based resins such as PF, UF, and MF. While not wishing to be bound by theory, it is believed that incorporating derivatives of native lignin in isocyanate compositions will reduce incidence of pre-curing.

主权项

1. An adhesive system comprising:
a. a resin comprising at least about 30% by weight of phenol-formaldehyde resin and at least about 30% by weight of derivative of native lignin; and b. an isocyanate-based binder.