INJECTION MOLDING SHOE SOLE MATERIAL SHOE SOLE COMPRISING SAME MANUFACTURING METHOD AND APPLICATION THEREOF

• Main Author: KIM, MYUNG GON
• Format: Patent
• Language: English; Korean
• Published: 21.02.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The present invention relates to a technical field of an injection-molded shoe sole and, more specifically, to an injection-molded shoe sole material, a shoe sole including the same, a manufacturing method thereof, and application thereof. According to the present invention, the problem of a conventional shoe sole material that a large amount of a petroleum-based polymer compound is used to cause an environmental contamination can be solved and the poly lactic acid (PLA) chain extension modification allows modified PLA to provide excellent toughness and compatibility. In addition, the injection-molded shoe sole material prepared with the modified PLA and other raw materials has thermal stability, antioxidant properties, heat resistance, and compressive strength. Accordingly, the application of PLA can be greatly expanded in various fields and the PLA material was applied to the shoe-making industry for the first time to lead and promote the development of a decomposable material for preparing shoes. 본 발명은 사출 성형 신발 밑창 기술분야에 속하는 것으로, 보다 구체적으로는 사출 성형 신발 밑창 재료, 이를 포함하는 신발 밑창 및 이의 제조 방법과 응용에 관한 것이다. 본 발명은 기존의 신발 밑창 재료가 석유계 고분자 화합물의 다량 사용으로 인한 환경 오염을 해결할 수 있고, PLA의 사슬 연장 변성을 통해 변성 PLA로 하여금 우수한 인성 및 상용성을 갖도록 하며, 변성 PLA 및 기타 원료로 제조된 사출 성형 신발 밑창 재료로 하여금 열안정성, 항산화성, 내열성 및 압축 강도를 갖도록 하고, PLA의 적용 분야를 크게 확장하며, PLA 재료를 신발 제조 산업에 처음 도입하여 분해 가능한 신발 제조 재료의 발전을 안내 및 촉진하였다.