	transamerica ta unit buys reinsurance unit transamerica insurance group the main property liability insurance operation of transamerica corp said it signed a definitive agreement to uire a newly formed insurer commerical risk underwriters insurance co from clarendon group ltd transamerica said the unit which will be renamed transamerica reinsurance co will initially be capitalized at about mln dlrs transamerica said the uisition represents its first move into specialty treaty reinsurance the company said about members of clarendon will join transamerica as part of the uisition which is expected to close in november and is subject to various regulatory approvals reuter 
