Method for restoring and reinforcing wooden structural component

Details Method for restoring and reinforcing wooden structural component Method for restoring and reinforcing wooden structural component

1988-03-31

1989-09-12

Lusignan, Michael

Coating processes

Restoring or repairing

2940218, 264 36, 427393, 4284251, B05D 302, B32B 3500, B23P 700

Patent

active

048658790

ABSTRACT:
A method for reinforcing in-place a hollow wooden structural component, in particular a damaged utility pole, by injecting into the internal cavities of the structural component a polyurethane composition which forms, upon curing, a rigid polyurethane having a density of at least 40 lbs/ft.sup.3 and a flexural strength of at least 3,000 psi. The polyurethane composition is produced in situ by continuously metering and blending an isocyanate-containing liquid component and a polyol-containing liquid component.

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patent: 4295259 (1981-10-01), Rhodes et al.
patent: 4661532 (1987-04-01), Morin

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