Fiberboard shims containing blocked isocyanates

Details Fiberboard shims containing blocked isocyanates Fiberboard shims containing blocked isocyanates

1987-09-11

1989-08-15

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With subsequent cutting, grooving, breaking, or comminuting

264109, 264122, 264138, 524 14, B27N 318

Patent

active

048572527

ABSTRACT:
Fiberboard shims are manufactured which contain blocked isocyanates. The blocked isocyanates are blended with the other shim components to ensure complete distribution of the isocyanate into the shim, thereby improving the strength characteristics of the shim while simultaneously simplifying the manufacturing procedure. Further, the need for hazardous solvent-based isocyanates in the workplace is eliminated.

REFERENCES:
patent: Re31703 (1984-10-01), Prather et al.
patent: 2790206 (1957-04-01), Cofek
patent: 3440189 (1969-04-01), Sharp
patent: 4029846 (1977-06-01), Decker et al.

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