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1. EP0579737 - MANUFACTURE OF SHAPED PRODUCTS OF BIAXIALLY ORIENTED POLYMERIC MATERIAL

Office
European Patent Office
Application Number 92910117
Application Date 25.03.1992
Publication Number 0579737
Publication Date 26.01.1994
Publication Kind B1
IPC
B29C 51/18
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
51Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
18Thermoforming apparatus
B29C 51/10
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
51Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
10Forming by pressure difference, e.g. vacuum
B29C 49/00
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
49Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
B29C 51/30
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
51Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
26Component parts, details or accessories; Auxiliary operations
30Moulds
B29C 51/00
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
51Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
B29C 51/42
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
51Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
26Component parts, details or accessories; Auxiliary operations
42Heating or cooling
CPC
B29C 51/06
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
51Shaping by thermoforming ; , i.e. shaping sheets or sheet like preforms after heating; , e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
04Combined thermoforming and prestretching, e.g. biaxial stretching
06using pressure difference ; for prestretching
B29C 49/00
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
49Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
B29C 51/00
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
51Shaping by thermoforming ; , i.e. shaping sheets or sheet like preforms after heating; , e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
B29C 51/082
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
51Shaping by thermoforming ; , i.e. shaping sheets or sheet like preforms after heating; , e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
08Deep drawing or matched-mould forming, i.e. using mechanical means only
082by shaping between complementary mould parts
B29C 51/306
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
51Shaping by thermoforming ; , i.e. shaping sheets or sheet like preforms after heating; , e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
26Component parts, details or accessories; Auxiliary operations
30Moulds
306with means for forming a rim
B29C 55/26
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
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
22of tubes
26biaxial
Applicants FORTEX INC
Inventors FORTIN JOHN K
Priority Data 07674761 25.03.1991 US
9202347 25.03.1992 US
Title
(DE) HERSTELLUNG GEFORMTER TEILE AUS BIAXIAL GERICHTETEM POLYMERMATIRIAL
(EN) MANUFACTURE OF SHAPED PRODUCTS OF BIAXIALLY ORIENTED POLYMERIC MATERIAL
(FR) PRODUCTION DE PROFILES EN POLYMERE A ORIENTATION BIAXIALE
Abstract
(EN)
Apparatus (80) and methods for the formation of biaxially oriented thermoplastic articles (70) having flat surfaces or sharp contours, along with the articles (70) themselves, are disclosed by the present invention. Such apparatus (80) and method relate to the heat-shrinking of biaxially oriented intermediates (50) onto male forms (82) to produce articles (70) of exacting dimensions and flat surfaces or sharply defined contours. Such thermoplastic articles (70) include autoclavable, hot fillable, heat stable, transparent PET containers.

(FR)
On décrit un appareil (80) et des procédés de formage d'articles thermoplastiques (70) à orientation biaxiale, dotés de surfaces planaires ou des contours précis, ainsi que les produits eux-mêmes (70). Ledit appareil (80) et procédé concernent le thermorétrécissement de produits intermédiaires (50) à orientation biaxiale sur des formes (82) afin de réaliser des articles (70) de dimensions très précises avec des surfaces planes ou des contours à définition très nette. Lesdits produits thermoplastiques (70) comprennent les récipients en polyéthylène transparent, thermorésistants, pouvant être remplis de substances chaudes et passés à l'autoclave.