Thermoplastic Resin Composition with Hydroxyl Fatty Acid Ester for Flowability

The patent applies parameter changes by controlling the weight-average molecular weight of the thermoplastic resin to be 50,000 or less (while maintaining shock resistance) and adjusting the ratio of specific functional groups (carboxyl, hydroxyl, amine groups) to enable both improved flowability and maintained shock resistance through molecular structure optimization

The patent uses composite materials by combining thermoplastic resin with specific additives including metal salts (0.01-5 parts by mass), phosphorus compounds (0.01-5 parts by mass), and silicon compounds (0.01-5 parts by mass) to achieve synergistic effects that improve flowability while maintaining or enhancing shock resistance

The patent achieves superior resin performance by changing key parameters: limiting weight-average molecular weight to 50,000 or less, controlling functional group ratios (carboxyl 0.1-10 mmol/kg, hydroxyl 0.1-10 mmol/kg, amine 0.1-10 mmol/kg), and adding specific compounds (metal salts, phosphorus compounds, silicon compounds) to simultaneously improve flowability, shock resistance, and flame retardancy beyond existing technologies

The patent creates a composite resin system combining thermoplastic resin with multiple functional additives (metal salts for flame retardancy, phosphorus compounds for shock resistance enhancement, silicon compounds for surface properties) to achieve comprehensive performance improvement across multiple properties that exceeds the capabilities of conventional single-component or simple mixture formulations