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1. (WO1998050219) METHOD AND APPARATUS FOR PRODUCING STRETCH WRAP PLASTIC FILM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050219 International Application No.: PCT/AU1998/000314
Publication Date: 12.11.1998 International Filing Date: 01.05.1998
Chapter 2 Demand Filed: 12.08.1998
IPC:
B29C 47/00 (2006.01) ,B29C 55/06 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55
Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02
of plates or sheets
04
uniaxial, e.g. oblique
06
parallel with the direction of feed
Applicants:
FIRST GREEN PARK PTY. LTD. [AU/AU]; 34-36 Lakeside Avenue Reservoir, VIC 3073, AU (AllExceptUS)
JOHNSTONE, Peter [AU/AU]; AU (UsOnly)
Inventors:
JOHNSTONE, Peter; AU
Agent:
WATERMARK PATENT & TRADEMARK ATTORNEYS; 2nd floor 290 Burwood Road Hawthorn, VIC 3122, AU
Priority Data:
PO 656301.05.1997AU
Title (EN) METHOD AND APPARATUS FOR PRODUCING STRETCH WRAP PLASTIC FILM
(FR) PROCEDE ET APPAREIL DE PRODUCTION DE FILM PLASTIQUE ETIRABLE POUR EMBALLAGE
Abstract:
(EN) The present specification discloses a plastics material film (1) that is stretched beyond its yield point to about 100 % to 400 % elongation and thereafter only partially relaxed to release part of the elastic deformation component in the film to retain between about 20 % and 80 % of the elastic deformation in the film (1), the film thereafter being stored in this partially relaxed state whereby, when it is used, the retained elastic deformation capability is useable for the intended purpose of the film, for example, wrapping a load.
(FR) La présente invention décrit un film en matière plastique (1). Ce film est étiré au-delà de son point d'élasticité jusqu'à obtenir un allongement compris entre 100 et 400 %, puis il subit ensuite une relaxation partielle pour libérer une partie de la composante de déformation élastique dans le film et retenir entre 20 et 80 % de la déformation élastique du film (1). Le film est ensuite stocké dans cet état de relaxation partielle, et lors de son utilisation, la capacité de déformation élastique retenue peut être utilisée pour remplir la fonction du film prévue, par exemple, pour envelopper une charge.
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Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO19995278KR1020010012164BRPI9809357EP1015228RU02191694US6383430
JP2001522327 CN1259077CA2288903NZ500876AU1998070172ID022.882