Oligomeric aromatic polyphosphites

Details Oligomeric aromatic polyphosphites Oligomeric aromatic polyphosphites

1981-06-22

1983-11-01

Sutto, Anton H.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

260927R, 528169, C07F 915, C08K 552

Patent

active

044130775

ABSTRACT:
Aromatic, phenol-free polyphosphites containing at least two pentaerythritol residues and three bis-phenolic residues. They are effective polymer additives and are especially useful in enhancing the thermal stability of polypropylene.

REFERENCES:
patent: 3053878 (1962-09-01), Friedman et al.
patent: 3305608 (1967-02-01), Baranauckas et al.
Translation of Japanese Application 1975-35097, published Nov. 13, 1975.

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