Polymer alloy bowling ball

Details Polymer alloy bowling ball Polymer alloy bowling ball

1980-11-17

1982-01-05

Derrington, James H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

260 314R, 260 316, 264162, 26433118, 273 63G, B29D 3100, A63B 3712, A63B 3714

Patent

active

043093779

ABSTRACT:
A bowling ball having a thin viscous film deposited upon its surface from within the ball for increasing the coefficient of friction between the ball and the bowling lane. The film comprises a saturated plasticizer incorporated into the ball at the time of manufacture that slowly exudes from the outer shell over an extended period. The method comprises preparing a resin blend capable of being cured into a tough, durable material and mixing the resin blend with a plasticizer which is miscible with the liquid phase resin blend, but incompatible with the solid phase. Catalysts are admixed and heat is applied to the mixture to cure the resin blend into a tough and durable outer shell.

REFERENCES:
patent: 3068007 (1962-12-01), Satchell
patent: 3318727 (1967-05-01), Boenig et al.
patent: 3411781 (1968-11-01), Rytina et al.
patent: 3517933 (1970-06-01), Malkin
patent: 4131277 (1978-12-01), Randolph

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