Polyurethane Golf Ball Coating Using Acrylic and Caprolactone Polyol Blend

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Solution Overview

Problem

Existing golf ball coatings fail to provide a suitable balance between durability and spin control, with hard acrylic polyurethane coatings offering poor spin control and softer polyether polyurethane coatings lacking durability.

Innovation Solution

A polyurethane coating based on a blend of acrylic polyol and BEPD caprolactone polyol, incorporating components such as aliphatic isocyanates, fluorosurfactants, and UV stabilizers, which improves flexibility, UV durability, and hydrophobicity, thereby enhancing spin control while maintaining durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If hard acrylic polyol based polyurethane coating is used, then durability is improved, but spin control deteriorates

Engineering Contradiction:
ImprovedurabilityVSAvoidspin control
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies composite materials by combining acrylic polyol and BEPD caprolactone polyol in a specific ratio (60:40 to 40:60) to create a polyurethane coating that integrates the durability of acrylic polyol with the spin-enhancing properties of caprolactone polyol, resolving the contradiction between durability and spin control

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent changes the chemical composition parameters of the polyol mixture by incorporating BEPD caprolactone polyol with specific molecular weight and structure, which modifies the coating's physical properties to achieve both durability and improved spin control simultaneously

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If softer polyether polyol based coating is used, then spin control is improved, but durability deteriorates

Engineering Contradiction:
Improvespin controlVSAvoiddurability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent creates a composite polyurethane system that combines the soft, spin-friendly characteristics of polyether polyol with the durable acrylic polyol matrix, achieving a balance where the coating remains soft enough for spin control while maintaining durability through the acrylic component

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies local quality by ensuring the BEPD caprolactone polyol is uniformly distributed within the acrylic polyol matrix at optimized concentrations, creating localized soft segments that enhance spin while the overall coating structure maintains durability through the acrylic backbone

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If BEPD caprolactone polyol is incorporated into acrylic polyol, then flexibility and UV durability are improved, but coating complexity increases

Engineering Contradiction:
ImproveflexibilityVSAvoidcoating formulation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent optimizes specific parameters including the BEPD caprolactone polyol molecular weight (2000-10000), the mixing ratio with acrylic polyol (60:40 to 40:60), and the isocyanate index (105-115) to achieve desired flexibility and UV durability while controlling formulation complexity through defined ranges

Inventive Principle:
Principle #35Parameter changes

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 coating achieves a balance between durability and spin control, increasing spin rates for golf balls, particularly in short-distance shots, by using a combination of hard and soft polyol components.

Implementation Method 1

a polyurethane coating that is based on polyol mixture containing acrylic polyol and BEPD based caprolcatone polyol

Methodology Applied
Scientific EffectPolymer blending:

Implementation Method 2

Various benefits that BEPD brings to a coating are improved flexibility, UV-durability, and hydrophobicity

Methodology Applied
Scientific EffectHydrophobicity: Hydrophobe

Implementation Method 3

a part A component comprising an acrylic polyol, a BEPD polyol, a 3-Oxazolidineethanol, a fluorosurfactant, a hindered amine light stabilizer, a UV-absorber

Methodology Applied
Scientific EffectUV stabilization:

Data Source

PatentUS10391362B1Soft polyurethane coating for a golf ball
Publication Date: 2019.08.27 CALLAWAY GOLF COMPANY
  • US10391362B1 patent drawing
  • US10391362B1 patent drawing
  • US10391362B1 patent drawing

AI summary

A polyurethane coating that is based on polyol mixture containing acrylic polyol and BEPD based caprolcatone polyol is disclosed herein. The polyurethane coating comprises a part A component and a part B component, with the part A component comprising an acrylic polyol, a BEPD polyol, a 3-Oxazolidineethanol, a fluorosurfactant, a hindered amine light stabilizer, a UV-absorber, an optical brightener, a dibutyltin dilaurate catalyst, and an organic solvent, and the part B component comprising an aliphatic polyisocyanate and an organic solvent.