US 7,572,863 B2
Hydrophobically modified poly(acrylic acid) [PAA] and process of preparation thereof
Manohar Virupax Badiger, Maharashtra (India); Prakash Purushot Wadgaonkar, Maharashtra (India); Ashish Kishori Lele, Maharashtra (India); Aarti Subhash Shedge, Maharashtra (India); Dominque Hourdet, Paris (France); Patrick Perrin, Paris (France); and Christophe Chassenieux, Paris (France)
Assigned to Countil of Scientific and Industrial Research, New Delhi (India); and Ecole Superieur de Physique et Chimie Industrielles de la Ville de Paris (ESPCI), Paris (France)
Filed on Sep. 06, 2005, as Appl. No. 11/218,723.
Prior Publication US 2006/0142501 A1, Jun. 29, 2006
Int. Cl. C08F 8/14 (2006.01); C08F 20/06 (2006.01); C08F 20/18 (2006.01)
U.S. Cl. 525—330.1  [525/329.7; 525/330.3; 525/384; 526/317.1] 13 Claims
 
1. Hydrophobically modified polymer (HMP) having formula (1)

OG Complex Work Unit Drawing
with a poly (acrylic acid) backbone chain, wherein, R1 is C6H4—C15H31

OG Complex Work Unit Drawing
or C6H10—C15H31

OG Complex Work Unit Drawing
where ‘m’ and ‘n’ vary depending on molecular weights.