Bouncing ball amusement device having reduced transparency
First Claim
Patent Images
1. A ball amusement device comprising:
- an outer shell of transparent or semi-transparent elastomeric polyurethane having good bounce characteristics;
wherein the elastomeric polyurethane of the outer shell is an MDI-based polyurethane;
water within and filling the shell,wherein the ball amusement device has good bounce characteristics; and
wherein the transparent or semi-transparent outer shell is configured with a roughened or textured surface to reduce the transparency to light through the ball;
wherein the composition of the polyurethane elastomer includes at least one of isocyanate, polyol, and a chain extender,wherein the isocyanate is a methylene diphenyl diisocyanate with 25 wt % of the polyurethane elastomer,the polyol is at least one of a polyester and a polyether type polyol, the polyol has at least two functional OH groups on an molecular chain of the polyol, and the polyol constitutes 70 wt % of the polyurethane with MW1000˜
10000,the chain extender has at least two functional OH group or at least two NH2 functional group, constitutes 5 wt % of the polyurethane, and has short chain molecules with MW50˜
800, andthe polyurethane elastomer has a density of 1.1˜
1.2g/cm3 and a hardness of 70A˜
90A.
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Accused Products
Abstract
A ball amusement device including an outer shell of transparent or semi-transparent plastic or elastomer or plastomer having good bounce characteristics, and at least one liquid within the shell. The outer shell may be configured to reduce the transparency to light through the ball.
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Citations
9 Claims
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1. A ball amusement device comprising:
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an outer shell of transparent or semi-transparent elastomeric polyurethane having good bounce characteristics; wherein the elastomeric polyurethane of the outer shell is an MDI-based polyurethane; water within and filling the shell, wherein the ball amusement device has good bounce characteristics; and wherein the transparent or semi-transparent outer shell is configured with a roughened or textured surface to reduce the transparency to light through the ball; wherein the composition of the polyurethane elastomer includes at least one of isocyanate, polyol, and a chain extender, wherein the isocyanate is a methylene diphenyl diisocyanate with 25 wt % of the polyurethane elastomer, the polyol is at least one of a polyester and a polyether type polyol, the polyol has at least two functional OH groups on an molecular chain of the polyol, and the polyol constitutes 70 wt % of the polyurethane with MW1000˜
10000,the chain extender has at least two functional OH group or at least two NH2 functional group, constitutes 5 wt % of the polyurethane, and has short chain molecules with MW50˜
800, andthe polyurethane elastomer has a density of 1.1˜
1.2g/cm3 and a hardness of 70A˜
90A. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification