Process for preparing low molecular weight polymers

Details Process for preparing low molecular weight polymers Process for preparing low molecular weight polymers

C - Chemistry, Metallurgy

08

F

C08F 2/00 (2006.01) C02F 1/56 (2006.01) C02F 5/10 (2006.01) C08F 2/06 (2006.01) C08F 20/00 (2006.01) C11D 3/37 (2006.01)

Patent

CA 2106610

ABSTRACT OF THE DISCLOSURE A process for preparing polymers having molecular weights below 5,000 and polydispersity below 2.5 is provided. The polymerization is conducted in supercritical carbon dioxide at temperatures of at least 200°C and pressures above 3,500 psi. The process can be continuous, semi-continuous, or batch. The polymers are useful as detergent additives, scale inhibitors, dispersants and crystal growth modifiers.

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