Golf Ball Rubber Composition with High Oil Content
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Solution Overview
Problem
There is a need for novel rubber compositions containing high levels of oily substances suitable for solid golf ball applications, aiming to provide properties such as low cost, ease of processing, reduced compression, and reduced velocity, which are not effectively addressed by existing materials.
Innovation Solution
The development of rubber compositions comprising a base rubber, such as polybutadiene, combined with high levels of oily substances like paraffinic and naphthenic oils, along with specific curing processes and additives, to form golf ball cores, intermediate layers, and covers, optimizing properties like Mooney viscosity and cis content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If high levels of plasticizer are used in rubber compositions, then processing ease and cost are improved, but compression and velocity are increased
Solution Approach 1:
The patent changes the chemical composition parameters by using specific plasticizers (adipates, phthalates, citrates) in controlled amounts (5-50 parts per 100 parts rubber) and combining them with specific rubber types (polybutadiene, polyisoprene) and curing agents to achieve the desired balance between processing ease and compression characteristics
Solution Approach 2:
The patent creates a composite rubber composition by combining multiple components: base rubber, plasticizer, curing agent, and optional fillers in specific proportions to achieve both ease of processing and controlled compression properties
2Ease of manufacture
If high levels of plasticizer are used in rubber compositions, then cost is reduced, but velocity is increased
Solution Approach 1:
The patent optimizes the concentration of plasticizer within specific ranges (5-50 parts per 100 parts rubber) and selects specific plasticizer types to achieve cost reduction while controlling velocity through the combined effect of rubber type, curing agent, and plasticizer interaction
3Force
If conventional rubber compositions are used, then processing is difficult, but compression and velocity are reduced
Solution Approach 1:
The patent modifies the composition parameters by introducing specific plasticizers and curing agents that improve processing characteristics while maintaining controlled compression, creating a balance between processing ease and mechanical properties
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The resulting golf ball compositions exhibit reduced compression and velocity while maintaining performance, offering cost-effectiveness and ease of processing, making them suitable for various golf ball layers.
Implementation Method 1
a cured rubber having specific physical properties obtained by curing a rubber composition
Implementation Method 2
rubber compositions containing high levels of plasticizer are known to be useful
Data Source
AI summary
The present invention is directed to golf balls having at least one layer formed from a rubber composition comprising a base rubber and from 10 parts to 120 parts of an oily substance, by weight per 100 parts of the base rubber. The base rubber is a polybutadiene having a Mooney viscosity of 40 or greater. The rubber composition may be present in any one or more of a core layer, a cover layer, or an intermediate layer.