EP 1748931 A2 20070207 - POLYOLEFIN CONTAINER HAVING CERTAIN SHRINK CHARACTERISTICS AND METHOD OF MAKING SUCH CONTAINERS
Title (en)
POLYOLEFIN CONTAINER HAVING CERTAIN SHRINK CHARACTERISTICS AND METHOD OF MAKING SUCH CONTAINERS
Title (de)
POLYOLEFINBEHÄLTER MIT GEWISSEN SCHRUMPFEIGENSCHAFTEN UND VERFAHREN ZUR HERSTELLUNG DERARTIGER BEHÄLTER
Title (fr)
CONTENANT EN POLYOLEFINE PRESENTANT DES CARACTERISTIQUES DE RETRAIT DETERMINEES ET PROCEDE POUR PRODUIRE DE TELS CONTENANTS
Publication
Application
Priority
- US 2005018522 W 20050526
- US 57544704 P 20040528
- US 13704605 A 20050525
Abstract (en)
[origin: US2005249905A1] The two stage production of clear, low-haze, injection stretch blow molded polypropylene container articles with advantageous free shrink characteristics is disclosed. In the first processing stage, a preform article is manufactured on an injection molding machine. In a second and subsequent step, which may occur remotely from apparatus used in the first step, the preform article is heated and stretch blown into a container. The process may employ the selection of processing parameters to produce preform articles that facilitate stretch blow molding at relatively high rates of speed, while still maintaining an appropriate polypropylene polymer morphology that results in clear, low haze containers. Free shrink may be improved and measured. Furthermore, a haze, MFI, and wall thickness of containers subjected to a free shrinkage test following manufacture may be used to estimate or predict the processing parameters used to manufacture the container.
IPC 8 full level
B29C 49/00 (2006.01); B65D 1/00 (2006.01); B65D 1/02 (2006.01); B29C 35/08 (2006.01); B29C 49/06 (2006.01); B29C 49/12 (2006.01)
CPC (source: EP US)
B29C 49/0005 (2013.01 - EP US); B65D 1/0207 (2013.01 - EP US); B29C 49/06 (2013.01 - EP US); B29C 49/087 (2022.05 - EP); B29C 49/12 (2013.01 - EP US); B29C 49/42095 (2022.05 - EP); B29C 2035/0822 (2013.01 - EP US); B29C 2049/7831 (2022.05 - EP); B29C 2049/7832 (2022.05 - EP); B29C 2049/7862 (2022.05 - EP); B29C 2049/7879 (2022.05 - EP); B29C 2949/0715 (2022.05 - EP); B29C 2949/072 (2022.05 - EP US); B29C 2949/0811 (2022.05 - EP US); B29C 2949/082 (2022.05 - EP US); B29C 2949/0862 (2022.05 - EP US); B29C 2949/22 (2022.05 - EP US); B29C 2949/24 (2022.05 - EP US); B29C 2949/26 (2022.05 - EP US); B29C 2949/28 (2022.05 - EP US); B29C 2949/3024 (2022.05 - EP US); B29C 2949/3032 (2022.05 - EP US); B29K 2023/12 (2013.01 - EP US); B29K 2067/00 (2013.01 - EP US); B29K 2623/12 (2013.01 - EP US); B29L 2031/7158 (2013.01 - EP US); Y10T 428/1352 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR LV MK YU
DOCDB simple family (publication)
US 2005249905 A1 20051110; BR PI0511638 A 20080102; EP 1748931 A2 20070207; EP 1748931 A4 20070627; WO 2005118407 A2 20051215; WO 2005118407 A3 20070301
DOCDB simple family (application)
US 13704605 A 20050525; BR PI0511638 A 20050526; EP 05754304 A 20050526; US 2005018522 W 20050526