B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/16 (2006.01) B29C 45/14 (2006.01) B29C 45/17 (2006.01) B65D 39/04 (2006.01) B65D 51/00 (2006.01)
Patent
CA 2293988
A method for manufacturing a laminated rubber closure includes forming a lower rubber closure body of a rubber material with a synthetic resin film laminated thereon, with the synthetic resin film being exposed to the outer surface of the rubber closure body and with the upper surface of the lower rubber closure made of the rubber material being exposed to the outside, inserting the lower rubber closure body in a cavity of a lower die, setting an upper die having a cavity corresponding to the cavity of the lower die above the lower die, injecting a rubber material into the cavity of the upper die, and vulcanizing and forming an upper rubber closure body integral with and on the lower rubber closure body disposed in the cavity of the lower die. The invention also provides a laminated rubber closure produced by the manufacturing method.
Sudo Morihiro
Togashi Hiroshi
Daikyo Seiko Ltd.
Mcfadden Fincham
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