 Photographic silver halide elements containing optical brightening water-soluble interpolymers |
| We claim: 1. A photographic element containing at least one light sensitive silver halide layer and ... |
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| Reduction of optical brightener migration in polyolefin coated paper bases |
| What is claimed is: 1. In the method of making a light-sensitive photographic paper comprising the ... |
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| Polyolefin composition containing optical brighteners having reduced migration |
| We claim: 1. A composition of matter comprising an inclusion compound of an optical brightener and ... |
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| Dispersion aids for optical brighteners in polyolefins |
| OF THE INVENTION Although it is known that the addition of optical brightener into a non-polar ... |
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| Transparent/translucent bottles |
| OF THE INVENTION Fluorescent Dyes Classes of fluorescent dyes which may be used include stilbenes; ... |
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| Crosslinked sulfonated polyimide films |
| OF THE INVENTION The present invention provides a sufonated polyimide comprising the repeating ... |
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| Resin denture base molding apparatus |
| In view of the aforementioned problems, it is an object of the present invention to provide an ... |
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| Dental material |
| OF PREFERRED EMBODIMENTS The foregoing object is achieved by impregnating communicating holes of a ... |
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| Dental mouthpiece and method of making same |
| OF PREFERRED EMBODIMENTS Referring to FIG. 1, there is seen an arch-shaped mouthpiece substrate 10.... |
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| Method for manufacturing a dental prosthesis |
| It is the object of the present invention to provide an improved method for manufacturing fiber ... |
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Multilayer golf ball and composition
| Details |
Inventors: Cavallaro, Christopher; Dalton, Jeffrey L.; Rajagopalan, Murali;
Assignee: Acushnet Company (Fairhaven, MA)
Primary Examiner: Buttner; David J.
Assistant Examiner:
Attorney, Agent or Firm: Pennie & Edmonds LLP
The present invention is directed towards a multi-layer golf ball which comprises a core, a cover layer and at least one intermediate layers disposed between the core and cover, wherein the intermediate layer comprises an ethylene methacrylic/acrylic acid copolymer and optionally, a second thermoplastic component such as polyetherester block copolymer, polyesterester block copolymer, polyetheramide block copolymer, dynamically vulcanized thermoplastic elastomer, functionalized styrene-butadiene elastomer, thermoplastic polyurethane, thermoplastic polyesters, metallocene polymer or blends thereof and a filler such as zinc oxide, titanium dioxide or blends thereof. Further, in a preferred embodiment, the core has a compression less than 60, the finished ball has a COR (@ 125 ft/sec) of about 0.795 to about 0.815, the intermediate layer has a specific gravity of greater than about 1.2 and the cover has a Shore D hardness of about 60 to about 72. |
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following terms that are used in this application are defined in terms of the enumerated ASTM tests: Specific gravity ASTM D-297.
sup.
1 Flexural (Flex) Modulus ASTM D-790.
sup.
2 1 Tests were carried out in lab conditions where temperature was controlled to 20-23.
degree.
C.
Humidity was not controlled.
.
sup.
2 Tests were carried out using a 0.
5 in/min cross-head speed and a 2 inch span length in the three point bending mode.
Test samples were annealed at 23.
degree.
C.
and 50% Relative Humidity for 40 hours.
Shore D Hardness ASTM D-2240 Shore C Hardness ASTM D-2240 As used herein, the terms "points" or "compression points" refer to the compression scale or the compression scale based on the ATTI Engineering Compression Tester.
This scale, which is well known to those working in this field, is used in determining the relative compression of a core or ball.
Some artisans use the Reihle compression scale instead of the standard compression scale.
Based on disclosure in U.
S.
Pat.
No.
5,368,304, column 20, lines 55-53 it appears that Reihle compression values can be converted to compression values through the use of the following equation: compression value=160-Reihle compression value.
As used herein, "COR" refers to Coefficient of Restitution, which is obtained by dividing a ball's rebound velocity by its initial (i.
e.
incoming) velocity.
This test is performed by firing the samples out of an air cannon at a vertical steel plate over a range of test velocities (from 75 to 150 ft.
/sec.
).
A golf ball having a high COR dissipates a smaller fraction of its total energy when colliding with the plate and rebounding therefrom than does a ball with a lower COR.
Unless otherwise noted, the COR values reported herein are the values determined at an incoming velocity of 125 ft.
/sec.
As used herein, the term "copolymer" refers to a polymer which is formed from two or more monomers.
As used herein, the term "pph" in connection with a batch formulation refers parts by weight of the constituent per hundred parts of the base composition (e
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Nonmetallic Processes 
