Polycyclopentene Rubber Golf Ball Layer for Compression Set Resistance

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Solution Overview

Problem

Conventional golf balls face challenges in achieving a balance between elongation and compression set, which affects their durability and resistance to impact, leading to potential permanent deformation and reduced performance.

Innovation Solution

Incorporating a polycyclopentene rubber layer with specific hardness and crosslinking properties between a core and cover layer, optimized with peroxide or sulfur compounds, to enhance compression set resistance and elongation, thereby maintaining golf ball integrity and performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional golf ball materials are used, then manufacturing cost is reduced, but compression set resistance and durability are insufficient

Engineering Contradiction:

Improvecompression set resistanceVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent changes the chemical composition parameter by using polycyclopentene rubber instead of conventional materials like polybutadiene or styrene butadiene. This material substitution provides superior compression set resistance and durability while maintaining compatibility with existing manufacturing processes, thus resolving the contradiction between improved reliability and manufacturing cost

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs composite material construction by combining polycyclopentene rubber with specific additives and crosslinking agents. This composite approach enhances the compression set resistance and overall durability of the golf ball while utilizing established manufacturing techniques, balancing performance improvement with manufacturing feasibility

Inventive Principle:

Principle #40Composite materials

2Strength

If materials with high elongation are used, then impact resistance is improved, but permanent deformation resistance deteriorates

Engineering Contradiction:

Improveimpact resistanceVSAvoidpermanent deformation

Core Design Contradiction:

StrengthVSShape

Solution Approach 1:

The patent optimizes the elastomeric material parameters by selecting polycyclopentene rubber with specific molecular structure and crosslinking characteristics. This material exhibits balanced mechanical properties where it can undergo sufficient elongation to absorb impact energy while simultaneously resisting permanent deformation through its elastic recovery properties

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent applies different material properties to different layers of the golf ball. The elastomeric material is specifically engineered with localized properties where the outer layers provide elongation for impact absorption while the core maintains shape stability, achieving both high impact resistance and low permanent deformation

Inventive Principle:

Principle #3Local quality

3Reliability

If materials with low compression set are used, then durability is improved, but elongation and elasticity deteriorate

Engineering Contradiction:

ImprovedurabilityVSAvoidelongation

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent carefully controls the compositional parameters of the polycyclopentene rubber, including molecular weight distribution, crosslinking density, and additive composition. These parameter optimizations ensure the material maintains high elasticity and elongation capability while simultaneously achieving excellent compression set resistance and durability

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite elastomeric system where polycyclopentene rubber is combined with specific additives and crosslinking agents. This composite formulation achieves a synergistic effect where the base polymer provides elongation and elasticity while the crosslinking network prevents permanent deformation, balancing durability with compositional stability

Inventive Principle:

Principle #40Composite materials

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 solution provides golf balls with improved resistance to permanent deformation, maintaining durability and performance by balancing elongation and compression set, ensuring the golf ball can withstand repeated impacts without significant loss of shape or functionality.

Implementation Method 1

possessing excellent compression set in order to resist permanent deformation when a club head strikes the golf ball

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

optimized with peroxide or sulfur compounds

Methodology Applied

Scientific EffectCrosslinking: Chemical Bonding

Data Source

PatentUS10427005B2Golf balls incorporating polycyclopentene rubber

Publication Date: 2019.10.01 ACUSHNET CO

AI summary

Golf ball constructions incorporating at least one layer comprising a polycyclopentene rubber having advantageously modified end groups.