B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 17/32 (2006.01) B65D 17/28 (2006.01) B65D 17/50 (2006.01)
Patent
CA 2076460
ABSTRACT Container Closures A container closure, especially for a drinks can, includes a line of weakness around at least one aperture closed by a displaceable tab. The line of weakness is sealed by a polymeric material which has been applied as a plastisol and then gelled, the polymeric material being free of polyvinylchloride and the fluid plastisol having a low viscosity in the range 200 to 1800 mPa at 100s-1 and 43°C and below 2000 mPa at 441s-1 and 40°C. The opening below 2000 mPa at 441s and 40°C. The opening force for the tab at the or each aperture is in the range 10 to 60N to allow opening by finger or thumb pressure. The plastisol is for instance based on acrylate ester polymers or styrene/ethylenically unsaturated carboxylic acid copolymers and comprises plasticiser such as dialkyl esters of phthalic or other dibasic carboxylic acid, including polyester type materials and optionally a viscosity depressant such as a volatile diluent, a protective colloid and/or an emulsifier, and filler.
Gunstead Arthur John
Hewitt John Sidney
Smart & Biggar
W.r. Grace & Co.,-Conn.
LandOfFree
Container closures does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Container closures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Container closures will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1453039