Hyperbranched polymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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C526S346000, C526S313000, C526S335000, C526S172000

Reexamination Certificate

active

07659353

ABSTRACT:
A method for limiting the transmission of light through a material is disclosed. In the method, a layer composed of a hyperbranched polymer formed via a copolycyclotrimerization reaction is interposed between a light source and the material. Also provided is a method for emitting light comprising exciting the hyperbranched polymer. In addition, methods for limiting the transmission of light and for emitting light using hyperbranched polymers formed by homopolycyclotrimerization reactions are disclosed. A new class of hyperbranched polymers produced by copolycyclotrimerization is also disclosed.

REFERENCES:
patent: 5576375 (1996-11-01), Olsen et al.
patent: 5594058 (1997-01-01), Olsen et al.
Chalk et al., “A New Simple Synthesis of Soluble High Molecular Weight Polyphenylenes by the Cotrimerization of Mono- and Bifunctional Terminal Acetylenes,” J. Polym. Scia, Part A-1, 10, 2033-43 (1972).
Bracke, “Synthesis of Soluble, Branched Polyphenyls” J. Polym. Sci., Part A-1, 10, 2097-2101 (1972).
Sergeyev et al. “Polycyclotrimerization of Dipropargyl Ethers and Mixtures of Them with Monopropyrgylethersr” Polym. Sci. U.S.S.R., 31(6), 1300-06 (1989).
Srinrivasan et al. “Polymerization of Terminal Diynes by Niobium (V) Catalysts,” Polym. Bull. 20, 359-64 (1988).
Sun et al., “Copolycyclotrimerization of Mono- and Diynesj” Polym. Mater. Sci. & Eng., 82, 1 1 1-12 (2000).
Xu et al., “Synthesis of Stable and Luminescent Hyperbranched Polytalkenephenylenes) via Copolycyclotrimerization of Diynes and Monoynes,” Polym. Preprints, 41(2), 1318-19 (2000).
Office Action, mailed Apr. 20, 2004, for parent U.S. Appl. No. 10/109,316.
Final Office Action, mailed Nov. 23, 2004, for parent U.S. Appl. No. 10/109,316.
Chalk, A.J. and Gilbert, A.R., “A New Simple Synthesis of Soluble High Molecular Weight Polyphenylenes by the Cotrimerization of Mono- and Bifunctional Terminal Acetylenes,”J. Polym. Sci., Part A-1, 10, 2033-43 (1972).
Bracke, W., “Synthesis of Soluble, Brached Polyphenyls,”J. Polym. Sci., Part A-1, 10, 2097-2101 (1972).
Sergeyev et al., “Reactive Oligomers Based on the Polycyclotrimerization Reaction of Acetylene Compounds,”Appl. Polym. Symp.26, 237-48 (1975).
Srinrivasan, R. and Farona, M.F., “Polymerization of Terminal Diynes by Niobium(V) Catalysts,”Polym. Bull.20, 359-64 (1988).
Sun et al., “Evaluation of Branching Degree of Poly(alkenephenylenes) Prepared by Copolycyclotrimerization of Mono- and Diynes,”Polym. Mater. Sci.&Eng., 82, 113-14 (2000).
Xu et al., “Polycyclotrimerization of Internal Diynes: Synthesis of Hyperbranched Poly(alkenephenylenes),”Polym. Preprints, 41(2), 1245-46(2000).
Sun, et al., “Copolycyclotrimerization of Mono-and Diynes,”Polym. Mater. Sci.&Eng., 82, 111-12 (2000).
Sun et al., “Taming the Polycyclotrimerization of Diynes: Synthesis of Hyperbranched Poly(alkenephenylene),”Polym. Preprints, 41(1), 500-01(2000).
Xu et al., “Synthesis of Stable and Luminescent Hyperbranched Poly(alkenephenylenes) via Copolycyclotrimerization of Diynes and Monoynes,”Polym. Preprints, 41(2), 1318-19 (2000).
Xu et al., “Polymerizations of Terminal and Internal Diynes,”Polym. Preprints, 40(2), 820-21 (1999).
Xu et al., “Polycyclotrimerization of Diynes, a New Approach to Hyperbranched Polyphenylenes,”Chinese J. Polym. Sci., 17(4), 397-402 (1999).

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