Patent ID: 8394891
Filing Date: 2013-03-12
Classification: C07C,C07F,C08K,C08L,G02B

Abstract:
1. An additive for a polymerizable composition containing a compound represented by the following general formula (a) wherein R represents a saturated hydrocarbon group having 1 to 3 carbon atoms, M represents Sn, Sb, Bi, or Ge, m represents 0 or 1, R and M are not directly bonded when m is 0, n represents an integer of 1 to 3, X represents an alkylsulfanyl group having 1 to 3 carbon atoms or a group represented by the following general formula (1a) wherein M represents Sn, Sb, or Bi, R represents an alkylene group having 1 to 3 carbon atoms, a plurality of X may be the same as or different from each other, and wherein if two or more linking groups X are bonded with the metal atom M, the linking groups X may combine together to form a ring.