Patent ID: 7858111

Claim:
A multi-component fibrous product comprising: (a) a core consisting essentially of a non-bioactive polyester; and, (b) a sheath surrounding the core, the sheath comprising polyester covalently bonded to co-condensed phosphorus-containing chain members derived from one or more compounds selected from the group consisting of the compound of Formula I and the compound of Formula II: wherein R 1 is CH 3 or C 6 H 5 ; R 2 is CH 2 —CH 2 ; and, R 3 and R 4 are selected from the group consisting of H, (CH 2 ) 2 —OH, (CH 2 ) 2 —O—(CH 2 ) 2 OH, CH 2 —CH 2 —CH 2 —CH 2 OH, and CH 2 —CH 2 —CH 2 OH.