Phosphorus-containing compounds, their production and their use as anti-oxidants
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0098109A2
公开(公告)日:1984-01-11
The invention provides antioxidant compounds of formula
These are made by reacting the corresponding phenol monoacrylates and disubstituted phosphonites, and are effective to stabilize organic substances, especially polyolefins against deterioration by heat, light and oxidation. A stabilized polyolefin composition preferably contains such stabilizer plus phenol-type (and optionally sulfur-containing) antioxidant.
Phosphorus-containing compounds, their production and their use as
申请人:Sumitomo Chemical Company, Limited
公开号:US04539355A1
公开(公告)日:1985-09-03
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.