摘要:
Powdered overbased amorphous alkaline earth salts are made which consist essentially of isolated solid agglomerated micelles of amorphous alkaline earth metal salts complexed with an amorphous alkaline earth metal carboxylate of a fatty acid. The process for making the powder involves precipitating and isolating the solid particles from liquid overbased alkaline earth metal compositions.
摘要:
Compounds having the formula ##STR1## wherein R.sub.1 and R.sub.2 are lower alkyl or together lower alkylene,R.sub.3 is hydrogen, alkyl, methoxyethyl, alkenyl, propargyl, benzyl, alkyl substituted benzyl, or acyl,R.sub.4 is alkylene of 1 to 4 carbon atoms substituted with alkyl or alkenyl of 1 to 18 carbon atoms, alkenylene of 1 to 4 carbon atoms, cycloalkylene, cycloalkenylene, bicycloalkylene, bicycloalkenylene, or phenylene,M is hydrogen or a metal, andz has a value of from 1 to 4, and either (a) R.sub.5 is alkyl of 1 to 6 carbon atoms, R.sub.6 is alkyl of 1 to 6 carbon atoms, and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms, provided that R.sub.7 and R.sub.8 are not both hydrogen, or(b) R.sub.5 and R.sub.6 are together lower alkylene and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms,are good light stabilizers. The carboxylic acids are prepared for example, from 2,3,6-trimethyl-2,6-diethylpiperidin-4-ol and 1,2-cyclohexanedicarboxylic anhydride to give 2,3,6-trimethyl-2,6-diethyl-4-piperidyl hydrogen 1,2-cyclohexanedicarboxylate. The metal salts of the acids are readily prepared by reacting the acids or their salts with a reactive form of the metal or metal complex.
摘要:
Compounds having the formula ##STR1## wherein R.sub.1 and R.sub.2 are lower alkyl or together lower alkylene,R.sub.3 is hydrogen, alkyl, methoxyethyl, alkenyl, propargyl, benzyl, alkyl substituted benzyl, or acyl,R.sub.4 is alkylene of 1 to 4 carbon atoms substituted with alkyl or alkenyl of 1 to 18 carbon atoms, alkenylene of 1 to 4 carbon atoms, cycloalkylene, cycloalkenylene, bicycloalkylene, bicycloalkenylene, or phenylene,M is hydrogen or a metal, andz has a value of from 1 to 4, andEither(a) R.sub.5 is alkyl of 1 to 6 carbon atoms, R.sub.6 is alkyl of 1 to 6 carbon atoms, and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms, provided that R.sub.7 and R.sub.8 are not both hydrogen, or(b) R.sub.5 and R.sub.6 are together lower alkylene and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms,Are good light stabilizers. The carboxylic acids are prepared for example, from 2,3,6-trimethyl-2,6-diethyl-piperidin-4-ol and 1,2-cyclohexanedicarboxylic anhydride to give 2,3,6-trimethyl-2,6-diethyl-4-piperidyl hydrogen 1,2-cyclohexanedicarboxylate. The metal salts of the acids are readily prepared by reacting the acids or their salts with a reactive form of the metal or metal complex.
摘要:
Compounds having the formula ##STR1## wherein R.sub.1 and R.sub.2 are lower alkyl or cycloalkyl,R.sub.3 is hydrogen, alkyl, methoxyethyl, alkenyl, propargyl, benzyl or alkyl substituted benzyl,R.sub.4 is lower alkylene,M is a metal, andZ has a value of from 1 to 4,Are good light stabilizers. The carboxylic acids are prepared, for example, from 2,2,6,6-tetramethyl-piperidin-4-ol and succinic acid to give o-mono(2,2,6,6-tetramethyl-piperidin-4-ol)succinate. The metal salts of the acids are readily prepared by reacting the acids or their salts with a reactive form of the metal or metal complex.
摘要翻译:具有式的化合物,其中R 1和R 2是低级烷基或环烷基,R 3是氢,烷基,甲氧基乙基,烯基,炔丙基,苄基或烷基取代的苄基,R 4是低级亚烷基,M是金属,Z HAS A VALUE 从1到4,是良好的光稳定剂。 羧酸例如由2,2,6,6-四甲基 - 哌啶-4-醇和琥珀酸制备,得到邻 - 单(2,2,6,6-四甲基 - 哌啶-4-醇) 琥珀酸。 酸的金属盐通过使酸或其盐与金属或金属络合物的反应性形式反应而容易地制备。
摘要:
Compounds having the formula ##EQU1## wherein R.sub.1 and R.sub.2 are lower alkyl or cycloalkyl,R.sub.3 is hydrogen, alkyl, methoxyethyl, alkenyl, propargyl, benzyl or alkyl substituted benzyl,R.sub.4 is lower alkylene,M is a metal, andz has a value of from 1 to 4,And good light stabilizers. The carboxylic acids are prepared, for example, from 2,2,6,6-tetramethyl-piperidin-4-ol and succinic acid to give o-mono(2,2,6,6-tetramethyl-piperidin-4-ol)succinate. The metal salts of the acids are readily prepared by reacting the acids or their salts with a reactive form of the metal or metal complex.
摘要:
Shelf stable haze free liquids of overbased alkaline earth metal salts are obtained by reacting metal base with fatty acids in the presence of liquid hydrocarbon and aliphatic alcohols having at least 8 carbon atoms to provide overbased liquids essentially free of a phenol or a phenolic derivative. Stabilizer compositions containing the overbased liquids and mixed metal stabilizers of zinc, cadmium and tin are provided for stabilizing halogen-containing polymers.
摘要:
Compounds having the formula ##STR1## wherein R.sub.1 and R.sub.2 are lower alkyl or together lower alkylene,R.sub.3 is hydrogen, alkyl, methoxyethyl, alkenyl, propargyl, benzyl, alkyl substituted benzyl, or acyl,R.sub.4 is alkylene, alkyl-thio-alkyl or alkyl-oxo-alkyl,M is hydrogen or a metal, and z has a value of from 1 to 4, and either(a) R.sub.5 is alkyl of 1 to 6 carbon atoms, R.sub.6 is alkyl of 1 to 6 carbon atoms, and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms, provided that R.sub.7 and R.sub.8 are not both hydrogen, or(b) R.sub.5 and R.sub.6 are together lower alkylene and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms,are good light stabilizers. The carboxylic acids are prepared for example, from 2,3,6-trimethyl-2,6-diethylpiperidin-4-ol and sebacic acid to give 2,3,6-trimethyl-2,6-diethyl-4-piperidyl hydrogen sebacate. The metal salts of the acids are readily prepared by reacting the acids or their salts with a reactive form of the metal or metal complex.
摘要:
Compounds having the formula ##STR1## WHEREIN R.sub.1 and R.sub.2 are lower alkyl or cycloalkyl,R.sub.3 is hydrogen, alkyl, methoxyethyl, alkenyl, propargyl, benzyl or alkyl substituted benzyl,R.sub.4 is lower alkylene,M is a metal, andz has a value of from 1 to 4,Are good light stabilizers. The carboxylic acids are prepared, for example, from 2,2,6,6-tetramethyl-piperidin-4-ol and succinic acid to give O-mono(2,2,6,6-tetramethylpiperidin-4-ol)succinate. The metal salts of the acids are readily prepared by reacting the acids or their salts with a reactive form of the metal or metal complex.
摘要:
Compounds having the formula ##STR1## WHEREIN R.sub.1 and R.sub.2 are lower alkyl or form a cycloalkyl ring,R.sub.3 is hydrogen, alkyl, .beta.-methoxyethyl, alkenyl, propargyl, benzyl or alkyl substituted benzyl,R.sub.4 is alkylene, alkyl-thio-alkyl or alkyl-oxo-alkyl,M is hydrogen or a metal, andz is an integer of from 1 to 4, are good stabilizers against actinic radiation.These compounds are prepared, for example, from 4-amino-2,2,6,6-tetramethylpiperidine and succinic anhydride to give N-(2,2,6,6-tetramethylpiperidyl-4)succinamic acid. The metal salts of the acids are readily prepared by reacting the acids or their salts with a reactive form of the metal or metal complex.
摘要:
Substituted piperazine dione oxyls and hydroxides are stabilizers for synthetic polymeric materials normally subject to deterioration caused by ultraviolet light. The compounds may be prepared by first preparing a substituted piperazine dione with subsequent oxidation of the piperazine dione to yield the oxyl and reduction of the oxyl to yield the hydroxide derivative. Polymeric compositions containing these stabilizers may also contain a hindered phenolic compound. A typical embodiment is 15-n-octadecyl-7-oxyl-7,15-diazadispiro[5,1,5,3]hexadecane-14,16-dione.