C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/37 (2006.01) C11D 17/00 (2006.01)
Patent
CA 2450592
This invention provides barrier materials and devices prepared from multi- stage polymer compositions that protect active ingredients and beneficial agents in an aqueous system and that are triggered to release such agents to an environment of use.
Chang Ching-Jen
Guo Hailan
Gowling Lafleur Henderson Llp
Rohm And Haas Company
LandOfFree
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