Phenolic group-containing phosphonite compound and process for making the same
OwnerErica Lin, Ching-Yie Suinventors
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Abstract
A phenolic group-containing phosphonite compound has the following formula (I) 1 wherein R1, R2, R3, R4, R5, and R6 independently of one another are hydrogen or C1-C18 alkyl, n and m are integer numbers ranging from 1 to 3, and the sum of n and m ranges from 2 to 4, and X is sulfur or C1-C8 alkylene which may be optionally substituted with at least one C1-C6 alkyl if the sum of n and m is 2, is a trivalent moiety of C3-C7 aliphatic group if the sum of n and m is 3, and is a tetravalent moiety of C4-C10 aliphatic group if the sum of n and m is 4.
Claims18
A phenolic group-containing phosphonite compound of formula (I)
- 10
- wherein
- R1, R2, R3, R4, R5, and R6 independently of one another are hydrogen or C1-C18 alkyl,
- n and m are integer numbers ranging from 1 to 3, and the sum of n and m ranges from 2 to 4;
- and
- wherein
- X, if the sum of n and m is 2, is sulfur or C1-C8 alkylene which may be optionally substituted with at least one C1-C6 alkyl,
- X, if the sum of n and m is 3, is a trivalent moiety of C3-C7 aliphatic group, and
- X, if the sum of n and m is 4, is a tetravalent moiety of C4-C10 aliphatic group.
A polymer composition stabilized against oxygen, light, and heat, comprising:
- a polymer material;
- and
- a phenolic group-containing phosphonite compound of formula (I)
- 11
- wherein
- R1, R2, R3, R4, R5, and R6 independently of one another are hydrogen or C1-C18 alkyl,
- n and m are integer numbers ranging from 1 to 3, and the sum of n and m ranges from 2to 4;
- wherein
- X, if the sum of n and m is 2, is sulfur or C1-C8 alkylene which may be optionally substituted with at least one C1-C6 alkyl,
- X, if the sum of n and m is 3, is a trivalent moiety of C3-C7 aliphatic group, and
- X, if the sum of n and m is 4, is a tetravalent moiety of C4-C10 aliphatic group.
Dependencies are inferred from the claim text.