Patent ID: 8853278

Claim:
A composition for treatment of biofilms, the composition comprising a biocidal polyamine compound of formula or a salt thereof; wherein: each R a is independently a group of Formula I: each R 1a and R 1b is a member independently selected from the group consisting of hydrogen, fluoro, alkyl, and fluoroalkyl; each R 2a , R 2b , R 2c and R 2d is a member independently selected from the group consisting of hydrogen, alkyl, fluoroalkyl, aryl, and arylalkyl; each R m is an independently selected —CR 2a R 2b ; each m is an integer independently selected from 1 to 2; each L 1 is a member independently selected from the group consisting of a bond and —O—; each R 3 is an independently selected Z 1 —Y 1 —R 4 ; each R 4 is a member independently selected from the group consisting of hydrogen, alkyl, fluoroalkyl, alkenyl, and alkynyl; or, alternatively, for a —N(R 4 ) 2 group, one of the two R 4 in the group is a member selected from the group consisting of —(CO)OR 6a —, —(CO)N(R 6a )(R 6b ), and —C(NR 6a )N(R 6b )(R 6c ); each R 5 is a member independently selected from the group consisting of hydrogen, alkyl, hydroxyl, alkoxy, halo, fluoroalkyl, fluoroalkyloxy, and hydroxyalkyl; each Y 1 is an independently selected group of Formula IA: each Z 1 and Z 2 is an independently selected NR 4 ; and each R 6a , R 6b , and R 6c is a member independently selected from the group consisting of hydrogen and alkyl; wherein if R 4 is —C(O)OR 6a , R 6a is alkyl; and wherein the biocidal polyamine compound comprises at least two primary or secondary amino groups.