EP 1585681 A1 20051019 - FULLY EMPTIABLE FLEXIBLE TUBE WITH AN AMPLIFIED RETURN EFFECT
Title (en)
FULLY EMPTIABLE FLEXIBLE TUBE WITH AN AMPLIFIED RETURN EFFECT
Title (de)
VOLLSTÄNDIG ENTLEERBARER FLEXIBLER SCHLAUCH MIT VERSTÄRKTER RÜCKKEHRWIRKUNG
Title (fr)
TUBE SOUPLE, A VIDAGE INTEGRAL ET EFFET RETOUR AMPLIFIE
Publication
Application
Priority
- FR 2004000061 W 20040114
- FR 0300820 A 20030124
Abstract (en)
[origin: FR2850363A1] Disposable plastic tube, which completely empties, comprises mixed olefin copolymers. In the transverse plane (T) the mean thickness (E) is 0.30-1.20 mm. It is made of a mixture of n (optionally = 1) olefin copolymers made from C2-C10 monomers. At least one first polymer of the mixture is a polypropylene, and the mixture constituting the wall of the tube has a modulus of flexure at least equal to 500 MPa, in accordance with the standard NF EN ISO 178. The length of the tube along the axis (XX'), between neck (4) end (123) and filling end (121), is 40-170 mm. Mean wall thickness in the transverse plane (T) is equal to the square root of the length corrected by a factor of 0.045-0.065, preferably 0.050-0.060. The ratio (C1/R4) of perimeter (C1) to the radius of connection (R4), is less than 3, preferably 0.5-2. Further details of the tube geometry are provided. The skirt seal closing the filling end has a slight inclination with respect to the axis of about 0.5 degrees, possibly up to 2 degrees. The tube is coated with a barrier layer lacquer. Sectored feed channels may be included.
IPC 1-7
IPC 8 full level
B29C 45/00 (2006.01); B29C 45/36 (2006.01); B65D 35/08 (2006.01)
CPC (source: EP US)
B29C 45/0046 (2013.01 - EP US); B29C 45/36 (2013.01 - EP US); B65D 35/08 (2013.01 - EP US); Y10T 428/1352 (2015.01 - EP US); Y10T 428/1393 (2015.01 - EP US)
Citation (search report)
See references of WO 2004074126A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2850363 A1 20040730; FR 2850363 B1 20060414; CN 1759047 A 20060412; CN 1759047 B 20110427; DE 04701983 T1 20060413; EP 1585681 A1 20051019; JP 2006515824 A 20060608; US 2006204693 A1 20060914; US 7695789 B2 20100413; WO 2004074126 A1 20040902
DOCDB simple family (application)
FR 0300820 A 20030124; CN 200480006336 A 20040114; DE 04701983 T 20040114; EP 04701983 A 20040114; FR 2004000061 W 20040114; JP 2005518708 A 20040114; US 54293504 A 20040114