Patent ID: 6875721
Filing Date: 2005-04-05
Classification: C07F,C08F

Abstract:
1. A soluble complex comprising a magnesium dihalide and an electron donor represented by the following formula (I) expressing the molar ratio between the magnesium dihalide and the electron donor: wherein MgX 2 is the magnesium dihalide and R(OR′)N is the electron donor, X is a halogen, R is an n-valent C 1 -C 20 aliphatic group, an n-valent C 7 -C 27 araliphatic group or an n-valent C 2 -C 22 acylic group, R′ is a C 1 -C 20 alkyl group or a C 7 -C 27 aralkyl group, n is a number from 1 to 6 and m is defined as a number 0.5≦m≦2.0.