Stabilized pigmented polypropylene fiber resistant to gas fade

Details Stabilized pigmented polypropylene fiber resistant to gas fade Stabilized pigmented polypropylene fiber resistant to gas fade

1987-07-13

1990-05-29

Morgan, Kriellion

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524100, 428396, C08K 534

Patent

active

049296531

ABSTRACT:
Excellent stabilization of pigmented polypropylene (PP) fiber against gas fade upon exposure to atmospheric pollutants is obtained with a hindered amine containing a polysubstituted piperazin-2-one (PSP) moiety, for example, a C.sub.2 -C.sub.12 alkylene connecting two PSP moieties, or a trisubstituted triazine ring with three PSP substituents, or a polyalkylene polyamine having pendant substituted oxo-piperazinyl-traizine moieties (PIP-T), that is, having pendant triazine rings substituted with PSP substituents. The stabilizers are unexpectedly effected when used without an antioxidant which produces yellowing, if used. Either pigmented or unpigmented PSP-stabilized PP fibers, and particularly fibers pigmented with white or pastel dyes, and having a non-alkaline "finish" are especially benefitted. Fibers made from PP stabilized with such a hindered amine, but lacking conventional antioxidants, have improved gas fade resistance, compared to fibers made from PP stabilized with several other commercially available hindered amines tested, including those which contain heterocyclic amines which are not PSPs, and especially those amines containing a hindered phenol moiety.

REFERENCES:
patent: 4629752 (1986-12-01), Layer et al.

Affiliated with

Also associated with

Rating

Stabilized pigmented polypropylene fiber resistant to gas fade does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stabilized pigmented polypropylene fiber resistant to gas fade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilized pigmented polypropylene fiber resistant to gas fade will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-521413