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1. WO2020194199 - METHOD FOR PRODUCING BIODEGRADABLE RESIN EXPANDED SHEET

Publication Number WO/2020/194199
Publication Date 01.10.2020
International Application No. PCT/IB2020/052783
International Filing Date 25.03.2020
IPC
B29C 44/00 2006.01
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming
B29C 44/20 2006.01
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming
20for articles of indefinite length
B29C 44/60 2006.01
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming
34Component parts, details or accessories; Auxiliary operations
60Measuring, controlling or regulating
B29C 48/32 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
30Extrusion nozzles or dies
32with annular openings, e.g. for forming tubular articles
B29C 48/87 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
78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
86at the nozzle zone
87Cooling
B29C 48/885 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
88Thermal treatment of the stream of extruded material, e.g. cooling
885External treatment, e.g. by using air rings for cooling tubular films
Applicants
  • 積水化成品工業株式会社 SEKISUI PLASTICS CO., LTD. [JP]/[JP]
Inventors
  • 遠藤翔太 ENDO, Shota
  • 福山英司 FUKUYAMA, Eiji
  • 森彩乃 MORI, Ayano
Priority Data
2019-06420428.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR PRODUCING BIODEGRADABLE RESIN EXPANDED SHEET
(FR) PROCÉDÉ DE PRODUCTION D'UNE FEUILLE EXPANSÉE DE RÉSINE BIODÉGRADABLE
(JA) 生分解性樹脂発泡シートの製造方法
Abstract
(EN)
The present invention pertains to a method which is for producing a biodegradable resin expanded sheet, and in which a biodegradable resin expanded sheet immediately after extrusion in an extrusion foaming process is left in a predetermined cooled state and can thus exhibit good formability.
(FR)
La présente invention concerne un procédé qui est destiné à produire une feuille expansée de résine biodégradable, et dans lequel une feuille expansée de résine biodégradable immédiatement après l'extrusion dans un processus de moussage par extrusion est laissée dans un état refroidi prédéterminé et peut ainsi présenter une bonne aptitude au façonnage.
(JA)
本発明は、押出発泡法において押出直後の生分解性樹脂発泡シートを所定の冷却状態にして良好な成形性を発揮させることができる生分解性樹脂発泡シートの製造方法に関する。
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