Plastic with reduced sulfur uptake rate

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

1996-05-10

1998-12-22

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528364, 544 35, 544 38, 544 48, 549200, 549201, 252 475, 252 781, C08G 6344

Patent

active

058521593

ABSTRACT:
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 neicosan-21-one,
II: condensation product of 2-chloro-4,6-di(4-n-butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5-triaz ine 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.

REFERENCES:
patent: 4232131 (1980-11-01), Rody et al.
patent: 4468488 (1984-08-01), Minagawa et al.
patent: 4863981 (1989-09-01), Gugumus
patent: 5112890 (1992-05-01), Behrens et al.
patent: 5169925 (1992-12-01), Schmailzl et al.
patent: 5246991 (1993-09-01), Igarashi et al.
patent: 5428177 (1995-06-01), Nesvadba
patent: 5503759 (1996-04-01), Evans et al.

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