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1. WO2020116927 - MULTILAYER-STRUCTURED POLYLACTIC ACID RESIN FOAM SHEET MANUFACTURED BY CO-EXTRUSION FOAMING METHOD, MOLDED ARTICLE, METHOD FOR MANUFACTURING SAME, AND APPARATUS FOR MANUFACTURING SAME

Publication Number WO/2020/116927
Publication Date 11.06.2020
International Application No. PCT/KR2019/017010
International Filing Date 04.12.2019
IPC
B32B 27/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
06as the main or only constituent of a layer next to another layer of a specific substance
B32B 37/15 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
37Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
14characterised by the properties of the layers
15with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
B32B 27/36 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
36comprising polyesters
B29C 48/00 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
B29C 48/18 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
16Articles comprising two or more components, e.g. co-extruded layers
18the components being layers
B29C 48/25 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
Applicants
  • 김효식 KIM, Hyo Shik [KR]/[KR]
  • 이응기 LEE, Eung Kee [KR]/[KR]
Inventors
  • 이응기 LEE, Eung Kee
Agents
  • 박근수 PARK, Kun Soo
Priority Data
10-2018-015558805.12.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) MULTILAYER-STRUCTURED POLYLACTIC ACID RESIN FOAM SHEET MANUFACTURED BY CO-EXTRUSION FOAMING METHOD, MOLDED ARTICLE, METHOD FOR MANUFACTURING SAME, AND APPARATUS FOR MANUFACTURING SAME
(FR) FEUILLE DE MOUSSE DE RÉSINE D'ACIDE POLYLACTIQUE À STRUCTURE MULTICOUCHE FABRIQUÉE PAR PROCÉDÉ DE MOUSSAGE PAR COEXTRUSION, ARTICLE MOULÉ, PROCÉDÉ DE FABRICATION DE CEUX-CI ET APPAREIL DE FABRICATION DE CEUX-CI
(KO) 공압출 발포 공법으로 제조되는 다층구조의 폴리락트산 수지 발포시트, 성형품, 그 제조방법 및 그 제조장치
Abstract
(EN)
The present invention relates to a polylactic acid resin foam sheet, a molded article, a method for manufacturing same, and an apparatus for manufacturing same, and more specifically, to a multilayered polylactic acid foam sheet, a heat-resistant molded article, a method for manufacturing same, and an apparatus for manufacturing same, the multilayered polylactic acid foam sheet being characterized by comprising: a foam layer manufactured by extruding a composition including a polylactic acid, a foaming agent, a chain extender, a nucleating agent, and a crystallization accelerator; and a non-foam layer formed on one surface or both surfaces of the foam layer and manufactured by extruding a composition including a polylactic acid and a crystallization accelerator, wherein the foam layer and the non-foam layer are manufactured by co-extrusion in a single process.
(FR)
La présente invention concerne une feuille de mousse de résine d'acide polylactique, un article moulé, un procédé de fabrication de ceux-ci, et un appareil de fabrication de ceux-ci et, plus spécifiquement, une feuille de mousse d'acide polylactique multicouche, un article moulé résistant à la chaleur, un procédé de fabrication de ceux-ci, et un appareil de fabrication de ceux-ci, la feuille de mousse d'acide polylactique multicouche étant caractérisée en ce qu'elle comprend : une couche de mousse fabriquée par extrusion d'une composition contenant un acide polylactique, un agent moussant, un allongeur de chaîne, un agent de nucléation et un accélérateur de cristallisation ; et une couche n'étant pas de la mousse formée sur une surface ou les deux surfaces de la couche de mousse et fabriquée par extrusion d'une composition contenant un acide polylactique et un accélérateur de cristallisation, la couche de mousse et la couche n'étant pas de la mousse étant fabriquées par coextrusion dans un seul processus.
(KO)
본 발명은 폴리락트산 수지 발포시트, 성형품, 그 제조방법 및 그 제조장치에 관한 것으로, 더욱 상세하게는 폴리락트산, 발포제, 사슬 연장제, 기핵제 및 결정화촉진제를 포함하는 조성물을 압출하여 제조되는 발포층; 및 상기 발포층의 한 면 또는 양 면에 형성되고, 폴리락트산 및 결정화촉진제를 포함하는 조성물을 압출하여 제조되는 비발포층을 포함하고, 상기 발포층과 비발포층이 단일공정으로 공압출되어 제조되는 것을 특징으로 하는 폴리락트산 다층 발포시트, 내열성 성형품, 그 제조방법 및 그 제조장치에 관한 것이다.
Also published as
Latest bibliographic data on file with the International Bureau