Cyanoacrylate Adhesive for Window Profile Bonding

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Solution Overview

Problem

Current window profile wrapping processes are inefficient, requiring multiple steps, using solvent-based primers, and resulting in high energy consumption and environmental concerns, while existing cyanoacrylate compositions do not adequately address the need for improved performance and throughput.

Innovation Solution

Cyanoacrylate compositions incorporating an anhydride and a toughening agent comprising a co-polymer of polyvinyl chloride and polyvinyl acetate, which enhance bonding properties and reduce the need for solvent-based primers and elevated temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If solvent-based primers and multiple process steps are used, then bonding reliability is improved, but process complexity and energy consumption increase

Engineering Contradiction:

Improvebonding reliabilityVSAvoidprocess complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes the solvent-based primer step and other unnecessary process steps from the window profile wrapping process, retaining only the essential adhesive application and curing steps. This extraction of non-essential steps reduces process complexity while maintaining bonding reliability through the optimized cyanoacrylate composition.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The cyanoacrylate composition is designed to perform multiple functions simultaneously: it provides adhesive bonding, ensures proper curing, and eliminates the need for separate primer applications. This multi-functionality consolidates multiple process steps into a single effective adhesive application, reducing overall process complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Strength

If elevated temperatures are used for curing, then adhesive bonding strength is improved, but energy consumption increases

Engineering Contradiction:

Improveadhesive bonding strengthVSAvoidenergy consumption

Core Design Contradiction:

StrengthVSUse of energy by moving object

Solution Approach 1:

The patent modifies the chemical parameters of the adhesive system by using a specifically formulated cyanoacrylate composition with controlled reactivity and curing characteristics. This allows the adhesive to achieve adequate bonding strength at lower temperatures, reducing the thermal energy input required while maintaining acceptable bonding performance.

Inventive Principle:

Principle #35Parameter changes

3Manufacturing precision

If multiple process steps are used, then bonding quality is improved, but production throughput decreases

Engineering Contradiction:

Improvebonding qualityVSAvoidproduction throughput

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The cyanoacrylate composition is pre-formulated with optimal chemical composition and reactivity characteristics, allowing it to deliver consistent bonding quality without requiring multiple intermediate process steps. The preliminary optimization of the adhesive formulation enables single-step application with reliable results, improving production throughput.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent eliminates intermediate steps such as solvent-based primer applications and extended curing periods, rushing through to the essential adhesive bonding and curing steps. This skipping of non-essential steps reduces production time while maintaining bonding quality through the optimized composition.

Inventive Principle:

Principle #21Skipping (Rushing through)

4Reliability

If solvent-based primers are used, then adhesion performance is improved, but environmental harm increases

Engineering Contradiction:

Improveadhesion performanceVSAvoidenvironmental harm

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent eliminates the use of solvent-based primers that create environmental harm, replacing them with a water-based or solvent-free cyanoacrylate composition. This conversion removes the harmful solvent component while maintaining adhesion performance through the optimized adhesive formulation, turning a harmful process into an environmentally friendly one.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 described compositions improve bonding efficiency, reduce energy consumption, and enhance the aesthetic finish by simplifying the process, achieving stronger adhesion and faster curing, thus addressing the inefficiencies and environmental concerns of existing methods.

Implementation Method 1

Cyanoacrylate adhesive compositions are well known, and widely used as quick setting, instant adhesives

Methodology Applied

Scientific EffectChemical Bonding: Chemical Bonding

Implementation Method 2

a cyanoacrylate component, an anhydride, and a toughening agent comprising a co-polymer of polyvinyl chloride and polyvinyl acetate

Methodology Applied

Scientific EffectAnionic Polymerization: Photopolymerisation

Data Source

PatentUS12065554B2Cyanoacrylate compositions

Publication Date: 2024.08.20 HENKEL KGAA

AI summary

Cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, an anhydride and a toughening agent comprising a co-polymer of polyvinyl chloride and polyvinyl acetate are provided.