Biodegradable plastic ball
AssigneeAtom Airsoft Oy
InventorSakari VYYRYLÄINEN
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Abstract
The invention relates to a ball, comprising a biodegradable polymer and one or more additives, such as an electrostatic charge eliminating additive, a density increasing additive, a strength/hardness modifier and/or the like added to the polymer mass during the compounding step. The ball is manufactured by a process generally applicable to the manufacture of polymers, such as injection molding, into a substantially spherical shape and grinding and/or polishing it to its final shape by means of double-sided lapping, barrel tumbling and/or the like. The biodegradable polymer used in the ball is polybutylene succinate (PBS).
Claims11
A ball, comprising a biodegradable polymer and one or more additives, such as an electrostatic charge eliminating additive, a density increasing additive, a strength/hardness modifying additive and/or the like added to the polymer mass during compounding stage, wherein the ball is manufactured by a process suitable for the manufacture of polymers, such as injection molding, into a substantially spherical shape and grinding and/or polishing the ball to its final shape by means of double-sided lapping, barrel tumbling and/or the like, wherein the biodegradable polymer used in the ball is polybutylene succinate (PBS) and the density increasing additive is at least one of a cerium oxide and a pure metal powder.
(canceled)
Dependencies are inferred from the claim text.