Weakly Basic Hindered Amines Having Carbonate Skeletons, Synthetic Resin Compositions, And Coating Compositions

Abstract

Hindered amines represented by the general formula (I): (wherein R is an alkyl or hydroxyalkyl group having 1 to 30 carbon atoms or alkenyl having 2 to 30 carbon atoms; n is an integer of 1 to 4; when n is 1, R 1 is alkyl having 1 to 22 carbon atoms, alkenyl having 2 to 22 carbon atoms, or a group represented by the general formula (III): (R is as defined above), while when n is 2 to 4, R 1 is an n-valent organic group having 2 to 20 carbon atoms). When added to synthetic resins or coating materials, the amines can impart long-period stabilizing effect to the resins or the materials and exhibit excellent resistance to extraction with acid rain or chemicals.

1 . A hindered amine compound represented by the general formula (I) or (II): 
     
       
         
         
             
             
         
       
     
     (in the formula, R is an alkyl group or a hydroxyalkyl group having 1-30 carbon atoms, or an alkenyl group having 2-30 carbon atoms, and n is an integer from 1-6. When n=1, R 1  is an alkyl group having 1-22 carbon atoms, an alkenyl group having 2-22 carbon atoms 1, or the group represented by the following general formula (III): 
     
       
         
         
             
             
         
       
     
     (R is the same alkyl group or hydroxyalkyl group having 1-30 carbon atoms, or alkenyl group having 2-30 carbon atoms as R above).
 When n=2-6, R 1  is an organic group having 2-20 carbon atoms of valency n. 
 
     
       
         
         
             
             
         
       
        (in the formula, R 2  is an alkyl group having 1-30 carbon atoms or an alkenyl group having 2-30 carbon atoms, R is a hydrogen atom, an alkyl group having 1-22 carbon atoms or an alkenyl group having 2-22 carbon atoms, and A is a single bond, linear- or branched-alkylene group having 1-12 carbon atoms, alkylene group with ether linkage; n is an integer from 2-6; X is —C(⊚O)—,a linear- or branched-alkylene group having 4-40 carbon atoms with a terminal —C(═O)O—, a linear- or branched-alkylene group having 4-40 carbon atoms with a carbonic acid ester linkage, or an organic group having 6-30 carbon atoms with 3-6 terminal —O—C(═O)—). 
     
   
   
       2 . The hindered amine compound according to  claim 1 , wherein R in the general formula (I) is an alkyl group having 4-22 carbon atoms, n is 2, and R 1  is an alkylene group having 2-12 carbon atoms. 
   
   
       3 . The hindered amine compound according to  claim 1 , wherein n in the general formula (I) is 1, and R is a group having the following general formula (III): 
     
       
         
         
             
             
         
       
     
     (R is an alkyl group having 10-22 carbon atoms). 
   
   
       4 . A synthetic resin composition, wherein 0.01 to 10 weight parts of the hindered amine compound according to  claim 1 , is blended with 100 weight parts of a synthetic resin. 
   
   
       5 . A polyolefin resin composition, wherein 0.05-5 weight parts of the hindered amine compound according to  claim 1  is blended with 100 weight parts of a polyolefin resin. 
   
   
       6 . An agricultural polyolefin film comprising the polyolefin resin composition according to  claim 5 . 
   
   
       7 . A coating composition stabilized by the hindered amine compound according to  claim 1 . 
   
   
       8 . A synthetic resin composition, wherein 1-30 weight parts of one or more of melamine phosphate, melamine pyrophosphate, melamine polyphosphate, piperazine phosphate, piperazine pyrophosphate and piperazine polyphosphate as a flame retarder, and 0.01 to 10 weight parts of the hindered amine compound according to  claim 1 , is blended with 100 weight parts of a synthetic resin composition.