Amine-thiol chain transfer agents

Details Amine-thiol chain transfer agents Amine-thiol chain transfer agents

1993-03-24

1994-03-29

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526220, C08F 2006, C08F 238

Patent

active

052985857

ABSTRACT:
Polymers having amine sulfide terminal moieties are provided. The amine sulfide terminal moieties are imparted by using aminethiols as chain transfer agents in aqueous addition polymerizations.
The polymers are useful as mineral dispersants, as water-treatment additives for boiler waters, cooling towers, reverse osmosis applications, sugar refining, paper production, geothermal processes and oil wells, and as detergent additives acting as builders, anti-filming agents, dispersants, sequestering agents and encrustation inhibitors.

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patent: 5091573 (1992-02-01), Gross et al.
CA 95(8): 62935d, Koide et al, Makromol. Chem. 182(5), 1391-8--1981.
Lenka, et al., "Polymerization of Acrylonitrile initiated by Ceric Ion-Organic Sulphur Compounds Reducing Agent Systems." Colloid & Polymer Science, vol. 260, pp. 1114-1117 (1982), Published in Germany.
Deboos, "Preparation and Characterization of Some Polymers Terminated with Primary Amino Groups", Polymer, vol. 14, pp. 587-588 (1973), Published in Cambridge, UK.

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