Photoinitiator anchored to silicate and use thereof to...

Details Photoinitiator anchored to silicate and use thereof to... Photoinitiator anchored to silicate and use thereof to...

2005-11-09

2010-02-09

Berman, Susan W (Department: 1796)

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C522S068000, C522S077000, C522S079000, C526S130000, C526S154000, C524S445000, C524S447000

Reexamination Certificate

active

07659321

ABSTRACT:
Photoinitiator modified silicate and ethylenically unsaturated monomer are reacted in solvent to cause living polymerization of monomer and exfoliation of silicate layers and cause attachment of silicate layers to polymer chains, thereby providing dispersed homopolymer or block copolymer silicate nanocomposites.

REFERENCES:
patent: 2004/0097630 (2004-05-01), Whitman et al.
patent: 2004/0204521 (2004-10-01), Camenzind et al.
patent: WO 04/000809 (2003-12-01), None
Di, J., et al., “Intergallery Living Polymerization Using Silicate-Anchored Photoiniferter. A Versatile Preparatory Method for Exfoliated Silicate Nanocomposites”, Macromolecules 2006, 39, 1020-1028.
Weimer, M.W., et al., “Direct Synthesis of Dispersed Nanocomposites by in Situ Living Free Radical Polymerization Using a Silicate-Anchored Initiator”,Jj. Am. Chem. Soc. 1999, 121, 1615-1616.
Otsu, T., “Iniferter Concept and Living Radical Polymerization”, Journal of Polymer Science: Part A: Polymer Chemistry, vol. 38, 2121-2136 (2000).
Di, Jianbo,Ph.D., “Nanostructure and architecture control in polymer silicate nanocomposites”, Cornell University, 2004, 226 pages; AAT 3114505—Abstract.

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