Ecoplastics Limited

Marble Vision Inc.

Ilse Treurnicht

James E Guillet

Tom Clarke

Stephen J Headford

Ruey S Li

Tony Redpath

A transparent sphere comprised of a hardened polymeric resin has an insert provided therein. The sphere is prepared such that there is no air gap between the polymeric resin and the insert. The insert is sized to provide an apparent size of the insert which appears to be substantially the same as the diameter of the sphere and to maintain the structural integrity of the sphere under normal conditions of use of the sphere.

Transparent ball with insert, and process of manufacture thereof

Condensation copolymers such as polyesters are rendered photodegradable, by subjecting them to conditions under which they undergo ester interchange effectively causing polymer chain scission, in the presence of a keto carbonyl containing compound having chemical groups reactive with the condensation polymer products formed by the ester interchange. The compound reacts chemically with the polymer products to reform the high molecular weight condensation copolymer, but with the keto carbonyl groups chemically linked into the polymer chains to confer photodegradability thereon.

Production of photodegradable polyester plastics

Growing community of inventors

Toronto, Canada

Ilse Treurnicht