Solid polymeric stabilizer compounds and process for their manuf

Details Solid polymeric stabilizer compounds and process for their manuf Solid polymeric stabilizer compounds and process for their manuf

1986-09-24

1989-01-10

Lieberman, Allan

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253331, 5253333, 5253336, 525360, 525390, 525397, 525420, 525436, 525437, 525453, 525462, 525523, 525533, 525534, 525535, C08F 842, C08F 6500

Patent

active

047974516

ABSTRACT:
Solid polymeric stabilizer compounds are disclosed comprising an organic polymeric matrix, to which are linked groups containing a sterically hindered aminic function, the organic polymeric matrix being a polymeric matrix of a vinyl-aromatic, aromatic with heteroatoms, dienic or olefinic polymer, containing hydrogen atoms replaceable by metal atoms, the groups containing the sterically hindered aminic function replacing, at least partially, said replaceable-by-metal hydrogen atoms of the matrix.
Also disclosed are processes for the preparation of said solid polymeric stabilizers and stabilized polymeric compositions comprising an organic polymer and a stabilizing amount of said solid polymeric stabilizers.

REFERENCES:
patent: 4314933 (1982-02-01), Berner
patent: 4356287 (1982-10-01), Loffelman et al.
patent: 4369274 (1983-01-01), Thomas
patent: 4370430 (1983-01-01), Hoffman
patent: 4402843 (1983-09-01), Trepka
patent: 4520171 (1985-05-01), Dixely et al.
patent: 4594395 (1986-06-01), Bezoari
patent: 4596859 (1986-06-01), Bezoari

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