Particulate Nucleating Agent Phosphate Control for Polyolefin Coloring
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Solution Overview
Problem
The existing nucleating agents for polyolefin-based resins face issues with feed reliability and color tone when added to polyolefin-based resins, leading to compromised production reliability and undesirable coloring of molded products.
Innovation Solution
A particulate nucleating agent containing an aromatic phosphate ester metal salt, specifically within a controlled range of phosphate ion content, is used to enhance feed reliability and suppress coloring, achieved through the synthesis and formulation of compounds like those represented by General Formula (1) and their combination with other components such as fatty acid metal salts and silicic acid-based inorganic additives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If phosphate ions are added to improve feed reliability, then feed reliability is improved, but excessive phosphate ions cause coloring of the molded product
Solution Approach 1:
The patent applies parameter changes by precisely controlling the phosphate ion content within a specific range (5-500 ppm). This quantitative parameter control resolves the contradiction by finding the optimal value that simultaneously improves feed reliability while preventing excessive coloring, transforming the harmful effect into a controlled and acceptable level.
Solution Approach 2:
The patent employs partial action by adding phosphate ions in controlled, limited amounts rather than excessive quantities. By implementing partial action with precise dosage control within the specified range, the patent achieves the beneficial effect of improved feed reliability while avoiding the harmful excessive coloring effect.
2Manufacturing precision
If a particulate nucleating agent is added to improve crystallization properties, then crystallization temperature and transparency are improved, but feed reliability and production reliability deteriorate
Solution Approach 1:
The patent applies parameter changes by controlling particle size distribution and phosphate ion content of the nucleating agent. These parameter optimizations enable the material to simultaneously achieve good crystallization properties and feed reliability, resolving the contradiction between manufacturing precision and production reliability.
Solution Approach 2:
The patent uses composite materials by formulating a nucleating agent that combines aromatic phosphate ester metal salts with specific particle size distribution and controlled phosphate ion content. This composite approach integrates multiple functional characteristics into one material that simultaneously improves crystallization properties while maintaining feed reliability.
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 solution effectively improves feed reliability and maintains the color tone of molded products, allowing for enhanced production reliability and improved physical properties like crystallization temperature and transparency.
Implementation Method 1
a technique of adding a crystal nucleating agent or a crystallization accelerator is known
Data Source
AI summary
A particulate nucleating agent of the present invention is a particulate nucleating agent that contains a compound represented by a predetermined general formula, in which a content of phosphate ions in the particulate nucleating agent, which is obtained by a predetermined measurement procedure, is equal to or more than 5 ppm and equal to or less than 8,000 ppm based on a mass of the compound represented by the predetermined general formula.