Functionalized Hydrocarbon Resin Composition for Adhesive Compatibility
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Solution Overview
Problem
Current polar synthetic resins used in adhesives and coatings face limitations such as instability, incompatibility with non-polar polyolefins, and high manufacturing costs, while existing hydrocarbon resins lack performance on polar surfaces like PET and acrylic varnishes.
Innovation Solution
A process involving grafting functional components onto hydrocarbon resins and polyolefins, followed by shear mixing to create a composition that enhances compatibility and stability, allowing improved adhesion and film integrity across polar and non-polar interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polar resins such as TOREs or TPRs are used to improve adhesion on polar surfaces, then adhesive performance is improved, but compatibility with non-polar polyolefins deteriorates and instability occurs
Solution Approach 1:
The invention creates a composite resin system combining polar functional groups (from grafted acrylic acid or methacrylic acid) with hydrocarbon resin base, achieving both polar surface adhesion and compatibility with non-polar polyolefins through the dual-character composite structure
Solution Approach 2:
The resin is modified by grafting polar acid groups at specific locations on the hydrocarbon resin molecules, creating local polar regions that provide adhesion to polar surfaces while the bulk hydrocarbon structure maintains compatibility with non-polar polyolefins
2Reliability
If polar resins such as TOREs are used to enhance adhesive properties, then adhesion to polar surfaces is improved, but color stability and odour generation worsen
Solution Approach 1:
The invention changes the chemical structure parameters by selecting hydrogenated cycloaliphatic hydrocarbon resin as the base and grafting acrylic or methacrylic acid, which modifies the thermal and chemical stability parameters to reduce color instability and odour generation while maintaining adhesive performance
3Reliability
If modified hydrocarbon resins are produced through multiple manufacturing steps to achieve polar functionality, then adhesive performance is improved, but manufacturing cost increases
Solution Approach 1:
The invention merges the resin base selection and functional group introduction into a simplified two-component system where hydrogenated cycloaliphatic hydrocarbon resin is combined with grafted acrylic or methacrylic acid, reducing the number of manufacturing steps while achieving the desired polar functionality and adhesive performance
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 resulting composition demonstrates enhanced compatibility and stability, improving adhesion, printability, and surface tension retention, while reducing manufacturing costs by simplifying the process and expanding application scope.
Implementation Method 1
A process involving grafting functional components onto hydrocarbon resins and polyolefins
Implementation Method 2
followed by shear mixing to create a composition that enhances compatibility and stability
Data Source
AI summary
A process for preparing a functionalized polymer composition and a functionalized polymer composition. The process comprises the steps of providing a hydrocarbon resin, a polyolefin and a graft monomer, and dispersing the hydrocarbon resin in the polyolefin, followed by adding the graft monomer under shear to prepare the functionalized polymer composition. The polyolefin can comprise a polyethylene polymer or a C3 to C40 polymer having a molecular weight (Mw) of at least 20000.