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1. WO2000040388 - POLYOLEFINE FOAM SHEET PRODUCTION METHOD AND DEVICE THEREOF

Publication Number WO/2000/040388
Publication Date 13.07.2000
International Application No. PCT/JP1999/007263
International Filing Date 24.12.1999
Chapter 2 Demand Filed 01.05.2000
IPC
B29C 44/28 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
28Expanding the moulding material on continuous moving surfaces
B29C 44/34 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
CPC
B29C 44/28
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 ; ; Producing porous or cellular expanded plastics articles
20for articles of indefinite length
28Expanding the moulding material on continuous moving surfaces ; without restricting the upwards growth of the foam
B29C 44/3415
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 ; ; Producing porous or cellular expanded plastics articles
34Auxiliary operations
3415Heating or cooling
Applicants
  • IDEMITSU PETROCHEMICAL CO., LTD. [JP/JP]; 6-1, Shiba 5-chome Minato-ku Tokyo 108-0014, JP (AllExceptUS)
  • FUJII, Atsushi [JP/JP]; JP (UsOnly)
  • UCHIYAMA, Katsumi [JP/JP]; JP (UsOnly)
Inventors
  • FUJII, Atsushi; JP
  • UCHIYAMA, Katsumi; JP
Agents
  • KINOSHITA, Jitsuzo ; Ogikubo TM Building 3rd floor 26-13, Ogikubo 5-chome Suginami-ku Tokyo 167-0051, JP
Priority Data
10/37328028.12.1998JP
11/3858417.02.1999JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POLYOLEFINE FOAM SHEET PRODUCTION METHOD AND DEVICE THEREOF
(FR) PROCEDE DE PRODUCTION D'UNE FEUILLE DE MOUSSE POLYOLEFINIQUE ET DISPOSITIF DESTINE A CET EFFET
Abstract
(EN)
A polyolefine foam sheet production method using a device having first and second heating rolls (62, 63) and provided with an endless belt (65) passed around the rolls and rotated, wherein a foaming base sheet (69) is brought into contact with the first roll (62) via the belt (65) and heated at temperatures not lower than a temperature to permit thermocompression-bonding to the belt (65) and lower than a foaming initiation temperature to thermocompression-bond the sheet (69) to the belt (65); then the sheet (69) is brought into contact with the second roll (63) via the belt (65) and heated for foaming at temperatures not lower than a foaming initiation temperature to form a foam sheet (61), whereby stretching/shrinking and wrinkling of the foam sheet at heating/foaming can be prevented.
(FR)
L'invention concerne un procédé de production d'une feuille de mousse polyoléfinique, consistant à utiliser un dispositif qui comporte un premier et un second rouleau de chauffage (62, 63) et est pourvu d'une bande sans fin (65) passant autour des rouleaux et mise en rotation, à mettre en contact une feuille de base de moussage (69) avec le premier rouleau (62), au moyen de la bande (65), et à chauffer cette feuille à des températures non inférieures à une température permettant une liaison par thermocompression avec la bande (65), et inférieures à une température de démarrage de moussage permettant la liaison par thermocompression de la feuille (69) avec la bande (65), puis à mettre la feuille (69) en contact avec le second rouleau (63), au moyen de la bande (65), et à chauffer cette feuille aux fins de moussage, à des températures non inférieures à une température de démarrage du moussage, afin de former une feuille en mousse (61), de sorte que l'on empêche ainsi l'étirage/rétrécissement et le plissement de la feuille en mousse lors du chauffage/moussage.
Also published as
US09869622
Latest bibliographic data on file with the International Bureau