Particle board process using polymeric isocyanate/release agent

Details Particle board process using polymeric isocyanate/release agent Particle board process using polymeric isocyanate/release agent

1981-06-15

1983-03-08

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

B29J 500

Patent

active

043760899

ABSTRACT:
A binder system is disclosed which incorporates an internal release agent and comprises a mixture of polyisocyanate resin, furfural and an ester of phosphoric acid. In the process of the invention the ester of phosphoric acid is placed into solution with furfural and subsequently blended with the polyisocyanate. Increased stability of the binder system is observed as well as providing for increased mold releasing capabilities.

REFERENCES:
patent: 4257995 (1981-03-01), McLaughlin et al.
patent: 4257996 (1981-03-01), Farrissey et al.
patent: 4258169 (1981-03-01), Prather et al.

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