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1. (WO1991008099) BLOW MOULDED CONTAINERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/008099 International Application No.: PCT/GB1990/001812
Publication Date: 13.06.1991 International Filing Date: 23.11.1990
Chapter 2 Demand Filed: 10.06.1991
IPC:
B29C 49/22 (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
49
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
22
using multilayered preforms or parisons
Applicants:
LIN PAC PLASTICS INTERNATIONAL LIMITED [GB/GB]; Charles Street Louth Lincolnshire LN11 0LA, GB (AllExceptUS)
BUTTERWORTH, James [GB/GB]; GB (UsOnly)
Inventors:
BUTTERWORTH, James; GB
Agent:
GILL JENNINGS & EVERY; 53/64 Chancery Lane London WC2A 1HN, GB
Priority Data:
8926490.723.11.1989GB
9005879.915.03.1990GB
Title (EN) BLOW MOULDED CONTAINERS
(FR) RECIPIENTS SOUFFLES
Abstract:
(EN) A preform for a blown container is injection moulded as two separate pieces (1, 4) which are subsequently fitted together before the preform is blown to form the container. Preferably the two separate pieces (1, 4) of the preform comprise an inner part (1) and an outer part (4) with both the inner and the outer part extending over the whole of the part of the preform which is used to form the body of the container. By making the preform from two separate pieces (1, 4) an increase in both strength and impermeability is obtained. It is also considerably more efficient and provides much greater flexibility when including additional layers (6, 18).
(FR) Une préforme pour récipient soufflé est moulée par injection en deux parties distinctes (1, 4) qui sont ensuite assemblées avant que ladite préforme ne soit soufflée pour former un récipient. Ces deux parties (1, 4) se composeront de préférence d'une partie interne (1) et d'une partie externe (4), qui recouvriront toutes deux l'ensemble de la partie de la préforme utilisée pour constituer le corps du récipient. La fabrication de la préforme à partir de deux parties distinctes (1, 4) permet de gagner en solidité et en imperméabilité. Le récipient est aussi beaucoup plus pratique et beaucoup plus flexible lorsqu'on y inclut des couches supplémentaires (6, 18).
Designated States: AT, AU, BB, BG, BR, CA, CH, DE, DK, ES, FI, GB, HU, JP, KP, KR, LK, LU, MC, MG, MW, NL, NO, RO, SD, SE, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CM, GA, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1990067453