Oligomers and polymers containing sulfinate groups, and...

Details Oligomers and polymers containing sulfinate groups, and... Oligomers and polymers containing sulfinate groups, and...

2007-10-30

2007-10-30

Lipman, Bernard (Department: 1713)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S327500, C525S340000, C525S343000, C525S348000, C525S359100, C525S359200, C525S359300, C525S375000, C525S385000

Reexamination Certificate

active

10929991

ABSTRACT:
The invention relates to polymers obtained by S-alkylation of sulfinated polymers with alkylation agents, and AB-cross-linked polymers obtained by reacting polymers containing alkylation groups with low-molecular sulfinates, under S-alkylation, or AB-cross-linked polymers obtained by S-alkylation of sulfinated polymers with polymers containing alkylation groups.

REFERENCES:
patent: 2628193 (1953-02-01), D Alelio
patent: 6221923 (2001-04-01), Schnurnberger et al.
patent: 6552135 (2003-04-01), Schnurnberger et al.
patent: 02/00773 (2002-01-01), None
patent: 03/022892 (2003-03-01), None
Kerres, J.A. et al., “New Sulfonated Engineering Polymers Via the Metalation Route. II. Sulfinated/Sulfonated Poly (Ether Sulfone) PSU Udel and its Crosslinking”, Journal of Polymer Science, Polymer Chemistry Edition, vol. 36, 1997, pp. 1441-1448, John Wiley and Sons, New York, U.S.
Kerres, J.A. et al., “Development and Characterization of Crosslinked Ionomer Membranes Based Upon Sulfinated and Sulphonated PSU. Crosslinked PSU Blend Membranes By Alkylation of Sulfinate Groups With Dihalogenoalkanes”, Journal of Membrane Science, vol. 139, 1998, pp. 227-241, Elsevier Scientific Publishing Company, Amsterdam, NL.

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