Stabilizing composition for organic polymers

Details Stabilizing composition for organic polymers Stabilizing composition for organic polymers

1991-09-25

1992-10-13

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524151, 524153, 524291, 524303, 524304, 524342, 25240024, C08K 5256

Patent

active

051551535

ABSTRACT:
A stabilizing composition for thermoplastic organic polymers containing measured quantities of: (a) a sterically hindered phenol; (b) a triarylphosphite; and (c) a dialkylthiodipropionate. Stabilized polymer compositions are also described containing a thermoplastic organic polymer, in particular a polyolefin, and a stabilizing quantity of said stabilizing composition, which possess excellent characteristics in relation to their melt flow index and color when subjected to repeated extrusion and in relation to their long-term thermal stability.

REFERENCES:
patent: 3409587 (1968-11-01), Mills
patent: 3531483 (1970-09-01), Gilles
patent: 3558554 (1971-01-01), Kuriyama et al.
patent: 3644482 (1972-02-01), Dexter et al.
patent: 3702837 (1972-11-01), Gilles
patent: 4187212 (1980-02-01), Zinke et al.
F. Mitterhofer, "Processing Stability", Polymer Enp. & Sci., Mid Jul. 1980, vol. 20, pp. 692-695.
George K. Cowell-Plastics Engineering, pp. 51-57 (Oct. 1976).
Henman, "Meet Stabilization of Polypropylene", Developments in Polymer Stabilization-1, pp. 39, 77 to 83, 92 to 95 (1979).

Affiliated with

Also associated with

Rating

Stabilizing composition for organic polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stabilizing composition for organic polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilizing composition for organic polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1300977