Balls for sport

Details Balls for sport Balls for sport

1976-10-22

1978-06-06

Marlo, George J.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 65ED, 273 58J, 260 75R, A63B 4102

Patent

active

040932192

ABSTRACT:
The invention relates to balls for sports, for example, a football, consisting of an external wear layer surrounding a bladder which also forms the body of the ball and is made from a powdered or liquid elastomeric resin comprising a polycondensation product of at least one compound of the group consisting of the dicarboxylic acids and esters of the dicarboxylic acids having a molecular weight of less than 300 with a polyalkylene-oxyglycol whose molecular weight is between 400 and 6000, and at least one diol having a molecular weight of less than 250. The external layer, suitably of rubber or leather, is secured directly to the bladder/body by, preferably, a polyurethane-base adhesive.

REFERENCES:
patent: 1870604 (1932-08-01), Coles
patent: 2996212 (1961-08-01), O'Sullivan

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