Inorganic organic coester stabilizers

Details Inorganic organic coester stabilizers Inorganic organic coester stabilizers

1978-10-05

1981-03-24

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252404, 260 457R, 260 4585T, 260930, 260941, 260942, 260978, 260982, C08K 552

Patent

active

042579279

ABSTRACT:
New polyhydric phenol coesters are disclosed of polyhydric phenols, having 2 to 3 phenolic hydroxyl groups and 1 to 3 benzenoid rings, with carbonic acid and an inorganic acid which can be phosphorous acid, phosphoric acid, and boric acid. The new coesters have molecular weights from 700 to about 10,000, preferably from 1200 to 7000, and are highly effective stabilizers for a variety of synthetic resins.
Stabilizer compositions comprising a polyhydric phenol coester and a known polymer stabilizer, as well as synthetic resins stabilized with such stabilizer compositions, are also disclosed.

REFERENCES:
patent: 3321439 (1967-05-01), Bollert et al.
patent: 3378523 (1968-04-01), Caldwell et al.
patent: 3578634 (1971-05-01), Bialous et al.
patent: 3634312 (1972-01-01), Babillis et al.
patent: 3655718 (1972-04-01), Schutze et al.
patent: 4054552 (1977-10-01), Hoogeboom

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