High-Functionality Branched Polyetheramine Polyols for Adhesion

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Solution Overview

Problem

Existing coatings for diverse substrates, including plastics, wood, glass, and metal, lack the combination of high functionality, reactivity, low viscosity, and good solubility, making them unsuitable for adaptable and efficient use as adhesion promoters or in polymer-based products.

Innovation Solution

The use of high-functionality, highly branched polyetheramine polyols, derived from trialkanolamine monomers and prepared through condensation with acidic or basic catalysis, which are applied as coatings to provide adaptable and efficient adhesion properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional coatings are used for diverse substrates, then they provide basic coating functionality, but they lack the combination of high functionality, reactivity, low viscosity, and good solubility

Engineering Contradiction:

Improveadaptability to diverse substratesVSAvoidperformance consistency

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies parameter changes by systematically varying the molecular weight, functionality, and branching degree of polyetheramine polyols to achieve optimal balance between viscosity, reactivity, and solubility. Specific parameters like OH number (40-200 mg KOH/g) and molecular weight (1000-10000 g/mol) are controlled to resolve the contradiction between adaptability and performance consistency

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention uses composite material approach by combining polyetheramine polyols with specific solvents (alcohols, esters, ketones, aromatics) and optional additives to create coating compositions that simultaneously achieve high functionality, low viscosity, and good solubility across diverse substrates

Inventive Principle:

Principle #40Composite materials

2Strength

If high-functionality polyetheramine polyols are used, then reactivity and adhesion improve, but viscosity may increase

Engineering Contradiction:

Improveadhesion strengthVSAvoidviscosity resistance

Core Design Contradiction:

StrengthVSForce

Solution Approach 1:

The patent resolves this contradiction by controlling the molecular weight and functionality parameters of polyetheramine polyols within specific ranges. By selecting polyols with molecular weights of 1000-10000 g/mol and functionalities of 2-10, the invention achieves high adhesion strength while maintaining acceptable viscosity levels for coating application

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention uses solvents as intermediary substances to mediate between the high functionality polyetheramine polyols and the coating system. Solvents like alcohols, esters, ketones, and aromatic hydrocarbons reduce viscosity and improve flow properties while maintaining adhesion performance

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If highly branched polyetheramine polyols are used, then functionality and reactivity increase, but solubility may decrease

Engineering Contradiction:

ImprovereactivityVSAvoidsolubility

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The patent controls the branching degree and molecular weight parameters of polyetheramine polyols to balance reactivity and solubility. By specifying molecular weights of 1000-10000 g/mol and functionalities of 2-10, the invention maintains high reactivity while ensuring adequate solubility in common coating solvents

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention creates composite coating compositions by combining highly branched polyetheramine polyols with compatible solvents and additives. This composite approach ensures that high functionality and reactivity are achieved while maintaining good solubility and compositional stability through proper formulation

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

These coatings demonstrate improved adhesion, flexibility, and chemical resistance, enhancing the performance of paints, coatings, adhesives, and sealants by offering high reactivity and solubility while maintaining low viscosity.

Implementation Method 1

prepared by condensation of trialkanolamine monomers with acidic or basic catalysis

Methodology Applied

Scientific EffectCondensation: Condensation

Implementation Method 2

condensation of trialkanolamine monomers with acidic or basic catalysis

Methodology Applied

Scientific EffectCatalysis: Catalysis

Data Source

PatentUS8501280B2Use of high-functionality highly branched polyetheramine polyols to coat surfaces

Publication Date: 2013.08.06 BASF SE

AI summary

The use of high-functionality highly branched polyetheramine polyols to coat substrates such as metal surfaces or components made of plastic permits improved adhesion of further coatings.