Phosphorus-containing compounds, their production and their use

Details Phosphorus-containing compounds, their production and their use Phosphorus-containing compounds, their production and their use

1983-06-16

1985-09-03

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

260941, C07F 936, C08K 553

Patent

active

045393559

ABSTRACT:
Phosphorus-containing compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom or a lower alkyl group, and R.sup.3 is a lower alkyl or phenyl group. These compounds may be used as stabilizers against the action of heat, light and oxygen for organic substances and especially polyolefin resins. These phosphorus-containing compounds may be used in conjunction with other stabilizers such phenol-type and sulfur-containing antioxidants, especially in polyolefin resin compositions to produce a polyolefin resin composition having excellent resistance to light, heat and oxygen. The present invention also relates to a method of producing the compounds of the aforementioned formula by reacting ##STR2## with a disubstituted phosphonate of the formula ##STR3## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined above.

REFERENCES:
patent: 1869657 (1932-08-01), Bowers
patent: 2754320 (1956-07-01), Johnston
patent: 3180847 (1965-04-01), Fowler et al.
patent: 3539531 (1970-11-01), Drake et al.
patent: 3717611 (1973-02-01), Baumer et al.
patent: 3784652 (1974-01-01), Gourse
patent: 3809676 (1974-05-01), Liberti
patent: 4254018 (1981-03-01), Kowallik et al.

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