Method of preparing catalyst for polymerization of aliphatic...

Details Method of preparing catalyst for polymerization of aliphatic... Method of preparing catalyst for polymerization of aliphatic...

2008-07-29

2008-07-29

Boykin, Terressa (Department: 1796)

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

Synthetic resins

From heterocyclic reactant containing as ring atoms oxygen,...

C502S150000, C525S072000, C525S080000, C525S181000, C525S185000, C525S331200, C525S331200, C525S340000, C525S346000, C528S196000, C528S198000, C528S405000

Reexamination Certificate

active

07405265

ABSTRACT:
Disclosed is a method of preparing a catalyst for polymerization of aliphatic polycarbonates and a method of polymerizing an aliphatic polycarbonate. This method includes reacting a zinc precursor and organic dicarboxylic acid in a non-ionic surfactant-included solution.

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patent: WO 99/11694 (1999-03-01), None
Li-Chen, et al. Copolymerization of carbon dioxide and propylene oxide and zince catlaysts supprted on carbonayl containing-polymer, Guangzhou Instit. of Chem. Acad. Sinica Guangzhou, China J,. Macromol. Sci. chem. A24 (3&4), pp. 253-260 (1987).
Rhee et al., “A New Copolymerization Process Leading to Poly (Propylene Carbonate) With a Highly Enhanced Yield From Carbon Dioxide and Propylene Oxide,” J. of Polymer Science: Part A: Polymer Chemistry, 37:1883-1876 (1999).
Chen et al., “Copolymerization of Carbon Dioxide and Propylene Oxide With Zinc Catalysts Supported on Carboxyl-Containing Polymers,” J. Macromol. Sci.-Chem., A24 (3&4):253-260 (1987).

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