Plastic with reduced sulfur uptake rate

Details Plastic with reduced sulfur uptake rate Plastic with reduced sulfur uptake rate

C - Chemistry, Metallurgy

08

K

C08K 5/34 (2006.01) C08K 5/3492 (2006.01) C08L 23/02 (2006.01)

Patent

CA 2176397

The present invention relates to plastics comprising a high molecular weight, sterically hindered amine, wherein the sterically hindered amine is at least one amine from the group consisting of I: oligomerized 2,2,4,4-tetramethyl-20(oxiranyl- methyl)-7-oxa-3,20-diazadispiro[5.1.11.2]heneicosan- 21-one, II: condensation product of 2-chloro-4,6-di(4-n- butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5- triazine and 1,2-bis(3-aminopropylamino)ethane, and III: condensation product of 1-hydroxyethyl-2,2,6,6- tetramethyl-4-hydroxypiperidine and succinic acid. These plastics exhibit a reduced rate of uptake of sulfur compounds. The invention further relates to shaped articles made from these plastics.

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