B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 83/14 (2006.01) A61K 9/00 (2006.01)
Patent
CA 2167696
A device for delivering an aerosol, comprising: a casing member (14), a valve stem (12), and a diaphragm (16). The diaphragm (16) contains a blend of (a) 100 parts by weight of a polyolefin random copolymer of about 80 to about 95 mole percent ethylene and a total of about 5 to about 20 mole percent of 1-butene, and (b) at least 10 parts by weight of a rubber: comprising a styrene-ethylene/butylene-styrene block copolymer based on 100 parts by weight of polyolefin. The styrene-ethylene-butylene- styrene block copolymer is substantially uniformly dispersed within the polyolefin. The blend preferably has a Shore A hardness of 65 to 85.
Dispositif de diffusion d'aérosol comprenant: un boîtier (14), une tige de valve (12) et un diaphragme (16). Le diaphragme contient un mélange (a) de 100 parties en poids d'un copolymère aléatoire de polyoléfine d'environ 80 à 95 moles pour cent d'éthylène et un total d'environ 5 à 20 moles pour cent de 1-butène, et (b) d'au moins 10 parties en poids de caoutchouc comprenant un copolymère séquencé styrène-éthylène/butylène-styrène basé sur 100 parties en poids de polyoléfine. Le copolymère séquencé styrène-éthylène/butylène-styrène est dispersé uniformément dans la polyoléfine. Le mélange présente de préférence une dureté Shore A de 65 à 85.
Minnesota Mining And Manufacturing Company
Robic
LandOfFree
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