摘要:
Stabilizer compositions for synthetic resins are provided, improving the resistance of the resin to deterioration when exposed to ultraviolet light, comprising a 2,2,6,6-tetramethylpiperidyl compound and an alkylidene-bis-(benzotriazolyl phenol) having the formula: R 1 is hydrogen or alkyl having from one to about twelve carbon atoms; R 2 is alkyl having from one to about twelve carbon atoms or arylalkyl having from seven to about sixteen carbon atoms; X is selected from the group consisting of hydrogen, halogen, alkyl having from one to about twelve carbon atoms, aryl having from six to ten carbon atoms, arylalkyl having from seven to about sixteen carbon atoms, alkoxy having from one to about twelve carbon atoms, aryloxy having from six to ten carbon atoms; and arylalkoxy having from seven to about sixteen carbon atoms; as well as synthetic resin compositions containing such stabilizers.
摘要:
A process is provided for preparing 2,2'-methylene-bis-(4-hydrocarbyl-6-benzotriazolyl-phenols) having formula III:
wherein: R is selected from the group consisting of alkyl having from one to about twelve carbon atoms; arylalkyl having from seven to about fourteen carbon atoms and cycloalkyl having from three to about twelve carbon atoms; X is selected from the group consisting of hydrogen, halogen, alkyl having from one to about twelve carbon atoms, aryl having from six to ten carbon atoms, arylalkyl having from seven to about sixteen carbon atoms, alkoxy having from one to about twelve carbon atoms, aryloxy having from six to ten carbon atoms; and arylalkoxy having from seven to about sixteen carbon atoms; R 1 and R 2 are selected from the group consisting of hydrogen; alkyl having from one to about six carbon atoms, and R, and R 2 taken together to form a four to six member heterocyclic ring including a nitrogen atom; provided, that at least one of R 1 and R 2 is not hydrogen; comprising (1) reacting a 4-hydrocarbyl-6-benzotriazolyl phenol having the formula I: with an amine HNR 1 R 2 and formaldehyde in an organic solvent to produce a Mannich base having formula II: and (2) reacting the Mannich base with itself or a 4-hydrocarbyl-6-benzotriazolyl phenol having formula I, thereby forming a 2,2'-methylene-bis-(4-hydrocarbyl-6-benzotriazolyl-phenol of formula III.
摘要:
Polyethers containing 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester or ether groups are provided, comprising polymeric units having the structure. wherein
X is selected from the group consisting of:
R 1 is selected from the group consisting of hydrogen, -0, alkyl, hydroxy alkyl and epoxyalkyl having from one to about eighteen carbon atoms, acyl having from one to about eighteen carbon atoms, cycloalkyl having from three to about eighteen carbon atoms; phenyl; phenalkyl and alkylphenyl having from seven to about twenty-four carbon atoms; R 2 is hydrogen or hydroxy; n 1 is 0 or 1; R 3 is lower alkyl having from one to about six carbon atoms; and n is the average number of such units in the polymer; as well as stabilized synthetic resin compositions comprising such polyethers.
摘要:
2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers are provided, useful as stabilizers for organic polymeric materials, and having the general formula: wherein: Y 1 is A,, A 2 , A3, A4, A 5 , and A 6 each are selected from the group consisting of hydrogen; alkyl and hydroxyalkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eight carbon atoms; aryl having from about six to about eighteen carbon atoms; acyl having from one to about eighteen carbon atoms wherein R 4 is selected from the group consisting of aliphatic having from one to about eighteen carbon atoms; cycloaliphatic having from three to about eight carbon atoms; heterocyclic having from six to about eighteen carbon atoms; and aromatic having from six to about eighteen carbon atoms; carbamoyl wherein R 5 is selected from the group consisting of aliphatic having from one to about eighteen carbon atoms; cycloaliphatic having from three to about eight carbon atoms; heterocylic having from six to about eighteen carbon atoms; and aromatic having from six to about eighteen carbon atoms; and monovalent oxyacid groups; at least one pair of A, and A 2 ; A3 and A 4 ; and A 5 and A 6 being taken together to form the group; wherein: Z is selected from the group consisting of hydrogen; oxyl 0; alkyl and hydroxyalkyl having from one to about twenty carbon atoms; and aryl and hydroxyaryl having from six to about twenty carbon atoms; X is selected from the group consisting of alkylene having from one to about eighteen carbon atoms; cycloalkylene having from three to about eight carbon atoms; arylene having from about six to about eighteen carbon atoms; polyacyl R 4 wherein R 4 is as above and n, is a number from 2 to 4; polycarbamoyl R 5 wherein R 5 is as above and n 2 is a number from 2 to 4; and di- and trivalent oxyacid groups; R, and R 2 each are selected from the group consisting of hydrogen; alkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eight carbon atoms; aryl having from about six to about eighteen carbon atoms; carbamoyl wherein R 5 is selected from the group consisting of aliphatic having from one to about eighteen carbon atoms; cycloaliphatic having from three to about eight carbon atoms; heterocyclic having from six to about eighteen carbon atoms; and aromatic having from six to about eighteen carbon atoms; and monovalent oxyacid groups; R 3 is selected from the group consisting of alkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eight carbon atoms; aryl having from about six to about eighteen carbon atoms; and -X-O-R 1 ; R 7 is selected from the group consisting of the residues of monohydric alcohols having from one to about eighteen carbon atoms and phenols having from six to about fifty carbon atoms; R " is selected from the group consisting of alkylene and oxyalkylene having from two to about ten carbon atoms and from zero to about five oxyether groups; cycloalkylene having from three to about eight carbon atoms; and arylene having from six to about fifty carbon atoms; and isocyanurate; m is a number from zero to 10; and p is zero or 1.
摘要:
2,2,6,6-Tetraalkyl -4-piperidyl alcohol esters of tet- adecylene polycarboxylic acids are provided, useful as light stabilizers for organic polymeric materials, and having the general formula: in which:
R is selected from the group consisting of wherein: R 5 and R 6 are each hydrogen or lower alkyl or hydroxyalkyl having from one to about six carbon atoms; R 7 is lower alkyl having from one to about six carbon atoms; R 1 R 1 , R, and R, are selected from the group consisting of hydrogen and methyl; X and X 3 are selected from the group consisting of hydrogen and COOR; X 2 and X 4 are selected from the group consisting of COOR and 30 wherein: R 3 , R 9 and R 10 are selected from the group consisting of hydrogen, hydroxy, alkyl, and alkoxy having from one to about eighteen carbon atoms.
摘要:
A process is provided for preparing 2,2'-methylene-bis-(4-hydrocarbyl-6-benzotriazolyl-phenols) having formula III:
wherein:
R is selected from the group consisting of alkyl having from one to about twelve carbon atoms; arylalkyl having from seven to about fourteen carbon atoms and cycloalkyl having from three to about twelve carbon atoms; X is selected from the group consisting of hydrogen, halogen, alkyl having from one to about twelve carbon atoms, aryl having from six to ten carbon atoms, arylalkyl having from seven to about sixteen carbon atoms, alkoxy having from one to about twelve carbon atoms, aryloxy having from six to ten carbon atoms; and arylalkoxy having from seven to about sixteen carbon atoms; R 1 and R 2 are selected from the group consisting of hydrogen; alkyl having from one to about six carbon atoms, and R, and R 2 taken together to form a four to six member heterocyclic ring including a nitrogen atom; provided, that at least one of R 1 and R 2 is not hydrogen; comprising (1) reacting a 4-hydrocarbyl-6-benzotriazolyl phenol having the formula I:
with an amine HNR 1 R 2 and formaldehyde in an organic solvent to produce a Mannich base having formula II: and (2) reacting the Mannich base with itself or a 4-hydrocarbyl-6-benzotriazolyl phenol having formula I, thereby forming a 2,2'-methylene-bis-(4-hydrocarbyl-6-benzotriazolyl-phenol of formula III.