Trithiocarbonate derivatives and the use thereof in the form...

Details Trithiocarbonate derivatives and the use thereof in the form... Trithiocarbonate derivatives and the use thereof in the form...

2011-06-07

2011-06-07

Chu, Yong (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Esters having the thiocarboxylate group, -cx-, wherein the...

Reexamination Certificate

active

07956211

ABSTRACT:
The invention relates to novel sulphur compounds, to the production thereof by a method carried out in an aqueous medium and the use thereof in the form of transfer agents in a method for controlled radical polymerization of acrylic acid and/or acrylic acid with water-soluble monomers in water. The thus obtained polymers are usable in the form of dispersing agents or grinding aid agents and/or aid agents for combined grinding of mineral materials in an aqueous suspension and in the form of dispersing agents directly incorporated into aqueous formulations containing mineral materials.

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Wetterholm, N,N′Bis(B,BB-trinitroethyl)urea, Svensk Kemisk Tidskrift (1964), 76(11), pp. 628-634. CAPlus AN 1965:66084. and 6332-91-8 Registry.
Mayadunne, Roshan T. A. et al., “Living Polymers by the Use of Trithiocarbonates as Reversible Addition-Fragmentation Chain Transfer (RAFT) Agents: ABA Triblock Copolymers by Radical Polymerization in Two Steps”, Macromolecules, vol. 33, No. 2, pp. 243-245, 2000.
Lai, John T. et al., “Functional Polymers from Novel Carboxyl-Terminated Trithiocarbonates as Highly Efficient RAFT Agents”, Macromolecules, vol. 35, No. 18, pp. 6754-6756, 2002.
U.S. Appl. No. 10/594,519, filed Sep. 28, 2006, Suau, et al.

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