Catalyzed Isocyanate Adhesive System For Wood Composites
OwnerJianwen Ni, Jay Tanzerinventors
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Abstract
An adhesive system for, inter alia, the manufacturing of wood composites, which includes a two part adhesive system with an isocyanate polymer and an isocyanate catalyst in an thermosetting resin.
Claims20
A method of manufacturing a wood composite comprising the steps of:
- a) providing a first adhesive comprising at least one isocyanate polymer;
- b) providing a second adhesive comprising a thermosetting resin with an isocyanate catalyst dispersed therein;
- c) applying the first adhesive and the second adhesive to lignocellulosic material to form an adhesive lignocellulosic mixture;
- d) curing the adhesive lignocellulosic mixture at a temperature and for a period of time to form the wood composite wherein the temperature and time for cure of the adhesive lignocellulosic mixture is less than that required for the same method without a dispersed isocyanate catalyst in the second adhesive.
A method of manufacturing a wood composite comprising the steps of:
- a) creating an adhesive composition comprising a first adhesive of at least one isocyanate polymer combined with a second adhesive of a dispersed isocyanate catalyst in an aldehyde-containing resin;
- b) combining the adhesive composition with lignocellulosic material to form an adhesive lignocellulosic mixture;
- c) applying an elevated temperature and an elevated pressure to the adhesive lignocellulosic mixture to form the wood composite.
A wood composite comprising a lignocellulosic material and a cured adhesive, wherein the cured adhesive comprises a linked polymer that is a reaction product of a first adhesive of at least one isocyanate polymer and a second adhesive of a dispersed isocyanate catalyst in an aldehyde-containing resin.
An adhesive system for a wood composite comprising:
- a first adhesive comprising at least one isocyanate polymer;
- and
- a second adhesive comprising a dispersed isocyanate catalyst in an amino resin carrier
- wherein the dispersed isocyanate catalyst provides for a reaction between the first adhesive and the second adhesive to occur at a lower temperature than for the same reaction without the dispersed isocyanate catalyst.
Dependencies are inferred from the claim text.