Patent ID: 8048284

Claim:
A composition comprising one or more sources of metal ions, one or more suppressors and one or more compounds having a formula: R 1 -A-R 3 -A-[C(O)—R 5 —C(O)-A-R 3 -A] n -R 2 (I) where A is —NH—; or —NH—R 6 —; R 1 is random, alternating or block —(CHR 9 CHR 10 O) p —H, where R 9 and R 10 are the same or different and are —H, —CH 3 , or —CH 2 CH 3 and p is an integer from 1 to 50; R 2 is random, alternating or block —(CHR 9 CHR 10 O) p —H; or —C(O)—R 5 —C(O)OH; R 3 is —(CH 2 ) r —NH—R 4 —(CH 2 ) r —; —(CH 2 ) r —NH—(CH 2 ) r —; —(CH 2 ) r —(OC 2 H 4 )—O—(CH 2 ) r ; or —(CH 2 ) r — and r is an integer from 1 to 8; R 4 is random, alternating or block —(CHR 9 CHR 10 O) p —; R 5 is —(CH 2 ) q — where q is an integer from 1 to 8; R 6 is random, alternating or block —(CHR 9 CHR 10 O) p —; and n is an integer of 1 to 10.