TPU COEXTRUDED CROSSLINKED POLYOLEFIN FOAM WITH TPU CAP LAYERS

• Main Authors: BOCK KAITLYN MICHELLE, SIERADZKI PAWEL, BALDWIN JESSE JUDE, BEN DAAT DAN
• Format: Patent
• Language: English; Korean
• Published: 11.10.2018
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; POLISHES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS AS ADHESIVES; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present disclosure relates to a physically crosslinked, closed cell continuous multilayer foam structure comprising at least one foam polypropylene/polyethylene layer with a TPU cap layer. The multilayer foam structure can be obtained by coextruding a multilayer structure comprising at least one foam composition layer with at least one cap composition layer, irradiating the coextruded structure with ionizing radiation, and continuously foaming the irradiated structure. 본 개시내용은 TPU 캡 층을 갖는 적어도 1개의 발포체 폴리프로필렌/폴리에틸렌 층을 포함하는, 물리적으로 가교된 독립 기포 연속 다층 발포체 구조물에 관한 것이다. 다층 발포체 구조물은 적어도 1개의 발포체 조성물 층과 적어도 1개의 캡 조성물 층을 포함하는 다층 구조물을 공압출시키고, 공압출된 구조물에 이온화 방사선을 조사하고, 조사된 구조물을 연속적으로 발포시킴으로써 얻을 수 있다.