Polyamide Resin Composition for Adhesion and Antifouling Surfaces

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Solution Overview

Problem

Existing polyamide resins fail to address the issue of polyamide resins failing to address the issue of polyamide resins being easily stained or contaminated through contact with contaminants.

Innovation Solution

The polyamide resin composition addresses the issue of polyamide resins being easily stained or contaminated through contact with contaminants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If polyamide resin is used as exterior material, then heat resistance and chemical resistance are improved, but the resin is easily stained or contaminated through contact with contaminants

Engineering Contradiction:

Improveheat resistanceVSAvoidcontamination

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent creates a composite polyamide resin composition by incorporating specific additives and modifiers into the base polyamide resin. This composite structure allows the material to maintain the inherent heat resistance and chemical resistance of polyamide while gaining enhanced stain resistance and contamination resistance properties through the synergistic effect of the composite components.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If plating or coating process is used to prevent contamination, then contamination resistance is improved, but manufacturing costs increase and various failures can occur

Engineering Contradiction:

Improvecontamination resistanceVSAvoidmanufacturing cost

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent extracts the contamination resistance function from separate post-processing steps (plating or coating) and integrates it directly into the polyamide resin composition itself. By incorporating stain-resistant additives and modifying the resin matrix, the material inherently resists contamination without requiring additional plating or coating processes, thereby eliminating the associated costs and potential failures.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The modified polyamide resin composition provides self-service by inherently resisting contamination through its compositional modifications. The resin itself, equipped with specific additives and structural modifications, actively prevents staining and contamination without requiring external protective layers or additional manufacturing steps, making the material self-protecting against contamination.

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If adhesion with other materials is improved, then versatility is improved, but the resin may become more susceptible to contamination

Engineering Contradiction:

ImproveadhesionVSAvoidcontamination

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by creating different functional zones within the polyamide resin composition. Specific additives and modifiers are distributed throughout the resin matrix to provide localized adhesion enhancement at interfaces with other materials, while simultaneously providing localized contamination resistance throughout the bulk material. This spatial differentiation allows the resin to exhibit both strong adhesion and high contamination resistance without compromise.

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP3674345B1Polyamide resin composition and article comprising the same

Publication Date: 2025.12.17 LOTTE ADVANCED MATERIALS CO LTD

Figure 1

AI summary

A polyamide resin composition includes: 5% by weight (wt%) to 50 wt% of an aromatic polyamide resin; 10 wt% to 60 wt% of an aliphatic polyamide resin; 20 wt% to 60 wt% of inorganic fillers; and 0.5 wt% to 5 wt% of a polyetheresteramide block copolymer, wherein the polyetheresteramide block copolymer is a polymer of a reaction mixture including 5 wt% to 95 wt% of a C6 to C12 amino carboxylic acid, lactam or diamine-dicarboxylic acid salt and 5 wt% to 95 wt% of polyalkylene glycol. The polyamide resin composition exhibits good adhesion with respect to other materials and antifouling properties.