B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/16 (2006.01) B29C 49/22 (2006.01) B65D 1/02 (2006.01)
Patent
CA 2554319
Processes for obtaining new composite preforms (26) suitable for blow-molding made of at least two different materials (4, 22), preforms obtained thereby, and articles obtained by blow-molding of these preforms. The processes employ the injection~molding of two (or more) plastic materials to form preforms that can be blow-molded into articles. In a preferred embodiment, the two materials have different colors and the resulting articles show a multi-colored effect. The two materials are not laminated over each other. In a second preferred embodiment, the formed preform is milled out before injecting a second material.
L'invention concerne des procédés d'élaboration de préformes composites (26) appropriées au moulage par soufflage, comprenant au moins deux matériaux différents (4, 22), des préformes résultantes, et des articles issus du moulage par soufflage des préformes. On procède au moulage par injection de deux (ou plus de deux) matières plastiques pour la réalisation de préformes susceptibles d'être moulées par soufflage en articles. En mode de réalisation préféré, les deux matériaux ont différentes couleurs et les articles résultants présentent un effet multicolore. Les deux matériaux ne sont pas laminés l'un sur l'autre.
Gowling Lafleur Henderson Llp
The Procter & Gamble Company
LandOfFree
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