Polymerization methods using the catalysts
US7868105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2006 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Aug 11, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F32/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a method of preparing a cyclic olefin polymer by addition polymerization of a cyclic olefin monomer, the method including contacting a metal catalyst complex represented by Formula 1 below with a cyclic olefin monomer represented by Formula 2 below:[M(L1)x(L′2)y(L3)z]a[Ani]b <Formula 1>wherein M is a Group X metal; [M(L1)x(L′2)y(L3)z] is a cationic complex; L1 is an anionic hydrocarbyl-containing ligand; L′2 is a neutral ligand; L3 is an N-heterocyclic carbene ligand; [Ani] is an anion capable of weakly coordinating with the metal M; x is 1 or 2; y is 0 to 4; z is 1 or 2; 2≦x+y+z≦6; a and b are respectively the number of cations and the number of anions capable of weakly coordinating with the metal M and are each a number of 1-10 which is used to satisfy the net charge balance of the metal catalyst complex, and wherein for each of L1, L′2, and L3, when a plurality of ligands are present in a molecule of the metal catalyst complex, the ligands may be the same or different, andwherein m is an integer of 0 to 4; and R7, R′7, R″7, and R″′7 are each independently a polar functional group or a nonpolar functional group.According to the method of the present invention, a hig…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.