52722-86-8Relevant articles and documents
Oligomeric hindered amine light stabilizers based on multi-functional carbonyl compounds and methods of making same
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, (2008/06/13)
Oligomeric compounds and methods of making the compound having the formula: T—[!Parenopenst!]E—F[!Parenclosest!]i—[!Parenopenst!]E—F′[!Parenclosest!]j—[!Parenopenst!]E′—F[!Parenclosest!]k—[!Parenopenst!]E′—F′[!Parenclosest!]l—S??(II) wherein i, j, k, and l are integers from about 0 to 300 and the sum of i, j, k, and l is greater than 2, wherein the units F, F′ and T are derived from one or more multi-functional carbonyl compounds of general structure DO—CO—CRaRb—(—CRcRd—)n—NH—(Y)m—CO—OD??(IV) wherein n is an integer from 1 to 15, m is either 0 or 1; Ra, Rb, Rc, and Rd, are each a hydrogen or a hydrocarbyl group; Y is CO—(CReRf)p, wherein Reand Rfare each a hydrogen or hydrocarbyl group and p is zero or an integer from 1 to 20 or CO—C6H4—, wherein the substitution pattern on the phenylene group is an ortho, meta, or para substitution pattern, and one or more of the hydrogens of the phenylene group may be substituted by a hydrocarbyl group or a functional group; and D is a hydrocarbyl group and the units E, E′ and S are derived from one or more 1-substituted piperidin-4-ol or 4-aminopiperidines of general structure wherein Z is OH or NHG, wherein G is H or C1-C12alkyl, R1is —(CH2)s-OH, —(CH2)s—NH2, C1-C18hydroxyalkoxy or C5-C12hydroxycycloalkoxy; wherein s is an integer from 1 to 10; R2represents hydrogen, C1-C8alkyl, or benzyl; R3, R4, R5, and R6are each a hydrogen, C1-C8alkyl, benzyl or phenethyl, or two geminal R moieties, which together with the carbon to which they are attached form a C5-C10cycloalkyl. The compounds are useful for stabilizing polymer compositions against photo- and thermal degradation.
Hindered amine light stabilizers based on multi-functional carbonyl compounds and methods of making same
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, (2008/06/13)
Compounds and methods of preparing compounds of the formula: RZ—CO—CRaRb—(CRcRd)n—NH—(Y)m—CO—A??(I) wherein n is an integer from 1 to 15, m is either 0 or 1; Ra, Rb, Rc, and Rd are each a hydrogen or a hydrocarbyl group; Y is CO—(CReRf)p, wherein Re and Rf are each a hydrogen or hydrocarbyl group and p is zero or an integer from 1 to 20 or CO—C6H4—, wherein the substitution pattern on the phenylene group is an ortho, meta, or para substitution pattern and one or more of the hydrogens of the phenylene group may be substituted by a hydrocarbyl group or a functional group; Z is —O— or —NG—, wherein G is H, C1-C12 alkyl or the radical R; wherein R is wherein R1 is hydrogen, C1-C18 alkyl, O, OH, CH2CN, C1-C18 alkoxy, C-C18 hydroxyalkoxy, C5-C12 cycloalkoxy, C5-C12 hydroxycycloalkoxy, C3-C6 alkenyl, C1-C18 alkynyl, C7-C9 phenylalkyl, unsubstituted or substituted on the phenyl with 1, 2 or 3 C1-C4 alkyls, or an aliphatic C1-C8 acyl; R2 is hydrogen, C1-C8 alkyl, or benzyl; R3, R4, R5, and R6 are each a hydrogen, C1-C8 alkyl, benzyl or phenethyl, or two geminal R moieties, which together with the carbon to which they are attached form a C5-C10 cycloalkyl; and A is either ZR or a hydrocarbyl group, which are useful for stabilizing polymer compositions against photo- and thermal degradation.
Oligomeric hindered amine light stabilizers based on multi-functional carbonyl compounds and methods of making same
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, (2008/06/13)
Oligomeric compounds and methods of making the compound having the formula: T[!Parenopenst!]E-F[!Parenclosest!]i[!Parenopenst!]E-F′[!Parenclosest!]j[!Parenopenst!]E′-F[!Parenclosest!]k[!Parenopenst!]E′-F′[!Parenclosest!]lS??(II) wherein i, j, k, and l are integers from about 0 to 300 and the sum of i, j, k, and l is greater than 2, wherein the units F, F′ and T are derived from one or more multi-functional carbonyl compounds of general structure DO—CO—CRaRb—(—CRcRd—)n—NH—(Y)m—CO—OD??(IV) wherein n is an integer from 1 to 15, m is either 0 or 1; Ra, Rb, Rc, and Rd, are each a hydrogen or a hydrocarbyl group; Y is CO—(CReRf)p, wherein Re and Rf are each a hydrogen or hydrocarbyl group and p is zero or an integer from 1 to 20 or CO—C6H4—, wherein the substitution pattern on the phenylene group is an ortho, meta, or para substitution pattern, and one or more of the hydrogens of the phenylene group may be substituted by a hydrocarbyl group or a functional group; and D is a hydrocarbyl group and the units E, E′ and S are derived from one or more 1-substituted piperidin-4-ol or 4-aminopiperidines of general structure wherein Z is OH or NHG, wherein G is H or C1-C12 alkyl, R1 is —(CH2)s—OH, —(CH2)s—NH2, C1-C18 hydroxyalkoxy or C5-C12 hydroxycycloalkoxy; wherein s is an integer from 1 to 10; R2 represents hydrogen, C1-C8 alkyl, or benzyl; R3, R4, R5, and R6 are each a hydrogen, C1-C8 alkyl, benzyl or phenethyl, or two geminal R moieties, which together with the carbon to which they are attached form a C5-C10 cycloalkyl. The compounds are useful for stabilizing polymer compositions against photo- and thermal degradation.
