Modified Polyolefin Resin Composition for Adhesive Stability
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Solution Overview
Problem
Modified chlorinated polyolefin resins used as binders face issues with solution stability over time, leading to separation and agglomeration, which deteriorates their adhesiveness and solution properties.
Innovation Solution
A modified polyolefin resin composition is developed by modifying polyolefin or chlorinated polyolefin resins with an α,β-unsaturated carboxylic acid derivative and an alcohol, maintaining a residual carboxylic acid structure ratio between 50% to 80%, and incorporating specific monomers to enhance stability and adhesiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If modified chlorinated polyolefin resin is used as a binder to improve adhesiveness, then adhesion performance is improved, but solution stability deteriorates over time leading to separation and agglomeration
Solution Approach 1:
The patent applies parameter changes by controlling the residual carboxy group structure ratio within a specific range (50-80%) and adjusting the alcohol-to-carboxy group molar ratio (0.5-5.0 mol/mol). These parameter optimizations balance the competing requirements of maintaining high adhesiveness while ensuring long-term solution stability, preventing both separation and agglomeration phenomena.
Solution Approach 2:
The patent creates a composite modified polyolefin resin system by combining chlorinated polyolefin resin with α,β-unsaturated carboxylic acid derivative and alcohol in specific proportions. This composite structure integrates the adhesive properties of the chlorinated polyolefin with the stabilizing effects of the carboxylic acid-alcohol modification system, achieving both high adhesiveness and solution stability.
2Duration of action of stationary object
If modified chlorinated polyolefin resin is dissolved and stored for long periods, then binder performance is maintained, but separation and agglomeration occur deteriorating solution properties
Solution Approach 1:
The patent applies preliminary action by pre-modifying the polyolefin resin with α,β-unsaturated carboxylic acid derivative and alcohol before dissolution and storage. This pre-modification establishes a stable molecular structure with controlled carboxy group content (50-80% residual ratio) that proactively prevents separation and agglomeration during long-term storage, ensuring solution reliability is maintained throughout the storage period.
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 modified resin composition maintains excellent adhesiveness and solution stability even after long-term storage, preventing separation and agglomeration, thus ensuring consistent performance in applications like paints and inks.
Implementation Method 1
a modified polyolefin resin (C), wherein the modified polyolefin resin (C) is a resin made by modifying a polymer (A) that is a polymer of a polyolefin resin or a chlorinated polyolefin resin and an α,β-unsaturated carboxylic acid derivative having a structure derived from at least one carboxy group with a modification component comprising an alcohol (B)
Data Source
AI summary
An object is to provide a resin composition having excellent performance as a binder such as adhesiveness and, at the same time, retaining solution properties favorably even after a solution is stored for a long period of time. A modified polyolefin resin composition includes a modified polyolefin resin (C), in which the modified polyolefin resin (C) is a resin made by modifying a polymer (A) that is a polymer (a) of a polyolefin resin or a chlorinated polyolefin resin and an α,β-unsaturated carboxylic acid derivative having a structure derived from at least one carboxy group or a chlorinated product (b) thereof with a modification component including an alcohol (B); and a residual ratio of the structure derived from at least one carboxy group in the modified polyolefin resin (C) is 50% or more and 80% or less.