Fiberboard shims and method of making them

Details Fiberboard shims and method of making them Fiberboard shims and method of making them

1975-05-20

1977-06-14

Lesmes, George F.

Stock material or miscellaneous articles

Composite

Of polyamidoester

21 7, 427324, 427334, 427439, 428537, 428541, B32B 2704, B32B 2742

Patent

active

040298469

ABSTRACT:
Shims having improved torque retention, tensile strength, resistance to deformation, and low water absorption are formed from a resin-impregnated, cellulosic fiberboard, soaked in a solution of about 1 to about 20% by volume of methylene-bis-(4-phenyl isocyanate), and cured.

REFERENCES:
patent: 2430479 (1947-11-01), Pratt et al.
patent: 2762721 (1956-09-01), Wells
patent: 3248254 (1966-04-01), Zeuk et al.
patent: 3539386 (1970-11-01), Janssen
patent: 3666593 (1972-05-01), Lee

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