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# c19) United States c12) Patent Application Publication 

# Haring et al. 

# (54) PHOSPHONIC ACID-CONTAINING BLENDS AND PHOSPHONIC ACID-CONTAINING POLYMERS 

(71) Applicants:Thomas Haring, Stuttgart (DE); Jochen Kerres, Ostfildem-Ruit (DE); Frank Schonberger, Saarlouis (DE); Martin Hein, Stuttgart (DE) 

(72) Inventors: Thomas Haring, Stuttgart (DE); Jochen Kerres, Ostfildem-Ruit (DE); Frank Schonberger, Saarlouis (DE); Martin Hein, Stuttgart (DE) 

(21) Appl. No.: 15/242,344 

(22) Filed: Aug. 19, 2016 

(63) Continuation of application No. 14/165,456, filed on Jan. 27, 2014, now abandoned, which is a continu› ation of application No. 12/278,245, filed on Feb. 10, 2009, now Pat. No. 8,637,174. 

## Related U.S. Application Data 

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(51) Int. Cl. 

(52) U.S. Cl. CPC ....... H0lM 8/1034 (2013.01); H0lM 8/1044 (2013.01); H0lM 8/1023 (2013.01); H0lM 8/1025 (2013.01); H0lM 8/1039 (2013.01); C08J 512287 (2013.01); B0JJ 39/20 (2013.01); H0JM 2008/1095 (2013.01) 

## (57) ABSTRACT 

A blend or blend membrane formed from a hydroxymeth› ylene-oligo-phosphonic acid R-C(P0$_{3}$H$_{2}$MOH)y and a poly› mer, in which the radical R is any organic radical, x and y are integers, the hydroxymethylene-oligo-phosphonic acid is a product of a reaction involving a carbonic acid, a carbonic acid halide or a carbonic acid anhydride, and the polymer includes a functional group selected from the group consisting of (i) suitable cation exchange groups or their non-ionic precursor and (ii) suitable basic groups. 

US 20170170505Al 

# c10) Pub. No.: US 2017 /0170505 Al 

# (43) Pub. Date: Jun. 15, 2017 

## Publication Classification 

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