Photosensitive Composition Coatability via Fluorinated Compound Structures

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Solution Overview

Problem

The existing photosensitive transfer materials face challenges with coatability, including cissing and coating unevenness, which affect the uniformity and quality of the film layer.

Innovation Solution

A composition comprising a compound with specific structures such as perfluoroalkenyl, perfluoropolyether, and ion-bonding groups, combined with a resin, which improves compatibility and solubility, reducing aggregation and enhancing surface tension and wettability for better coatability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a photosensitive composition containing fluorine-containing oligomer and lipophilic group is used, then cost reduction is achieved, but coatability deteriorates with cissing and coating unevenness occurring

Engineering Contradiction:
ImprovecoatabilityVSAvoidcissing and coating unevenness
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the chemical structure parameters of the fluorine-containing compound from conventional oligomers with lipophilic groups to compounds with specific perfluoroalkenyl groups (Formula a1-a3), perfluoropolyether groups (Formula b1), or ion-bonding groups (Formula C1-C2). This structural parameter change improves intermolecular compatibility and solubility, eliminating aggregation and cissing while achieving uniform coating without compromising cost effectiveness.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite photosensitive composition by combining specifically structured fluorine-containing compounds (with perfluoroalkenyl, perfluoropolyether, or ion-bonding groups) with resins. This composite approach leverages the unique properties of each component - the fluorine-containing compound provides surface tension control and wettability while the resin provides structural integrity, resulting in a composition that achieves excellent coatability without cissing.

Inventive Principle:
Principle #40Composite materials

2Manufacturing precision

If conventional fluorine-containing oligomers with lipophilic groups are used, then manufacturing cost is reduced, but film uniformity deteriorates due to aggregation and poor solubility

Engineering Contradiction:
Improvefilm uniformityVSAvoidaggregation and solubility
Core Design Contradiction:
Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The patent modifies the molecular structure parameters of fluorine-containing compounds by introducing specific functional groups (perfluoroalkenyl in Formula a1-a3, perfluoropolyether in Formula b1, or ion-bonding groups in Formula C1-C2). These parameter changes enhance solubility in the resin matrix and prevent aggregation, thereby achieving uniform film formation while maintaining cost effectiveness through efficient material utilization.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces localized functional groups (perfluoroalkenyl, perfluoropolyether, or ion-bonding groups) at specific positions within the fluorine-containing compound structure. This local quality enhancement at the molecular level improves intermolecular interactions and solubility characteristics, preventing aggregation and ensuring uniform distribution throughout the composition, which directly translates to uniform film uniformity.

Inventive Principle:
Principle #3Local quality

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 composition achieves improved coatability by minimizing aggregation and coating unevenness, resulting in a more uniform film layer with enhanced transferability and surface properties.

Implementation Method 1

enhancing surface tension and wettability for better coatability

Methodology Applied
Scientific EffectSurface tension: Surface Tension

Implementation Method 2

enhancing surface tension and wettability for better coatability

Methodology Applied
Scientific EffectWetting: Wetting

Data Source

PatentUS20230125445A1Composition, transfer film, manufacturing method for laminate, manufacturing method for circuit wire, and manufacturing method for electronic device
Publication Date: 2023.04.27 FUJIFILM CORP
  • US20230125445A1 patent drawing
  • US20230125445A1 patent drawing
  • US20230125445A1 patent drawing

AI summary

A first object of the present invention is to provide a composition having excellent coatability. In addition, a second object of the present invention is to provide a composition, a transfer film, a manufacturing method for a laminate, a manufacturing method for a circuit wire, and an electronic device, which are related to the composition.A composition of the present invention includes a compound A having one or more specific structures selected from the group consisting of (a), (b), and (c), and a resin.(a) a perfluoroalkenyl group,(b) a perfluoropolyether group, and(c) a group represented by General Formula (C1) or General Formula (C2),*—Cm+Am−[-Lm-(Rf)m2]m1  (C1)*-An−Cn+[-Ln-(Rf)n2]n1  (C2)