Method for preparing sulfonated organic porous material

Details Method for preparing sulfonated organic porous material Method for preparing sulfonated organic porous material

2006-10-10

2006-10-10

Truong, Duc (Department: 1711)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C528S487000, C528S373000, C525S333900, C525S333300

Reexamination Certificate

active

07119164

ABSTRACT:
A sulfonated organic porous material in which at least 0.5 mg-equivalent/g (on a dry basis) of sulfonic acid groups has been introduced can be obtained by causing a gaseous substance containing sulfuric anhydride to come in contact with an organic porous material having mesopores existing on the walls of interconnected macropores and having a median radius of 0.01–100 μm and a total pore volume of 1–50 ml/g. This preparation method can ensure the introduction of a large amount of sulfonic acid groups into an organic porous material in a short period of time.

REFERENCES:
patent: 5624875 (1997-04-01), Nakanishi et al.
patent: 6290853 (2001-09-01), Allmer et al.
patent: 3-269160 (1991-11-01), None
U.S. Appl. No. 10/508,008.
U.S. Appl. No. 10/929,523 (IDS filed on Nov. 18, 2004).
Derwent Publications, AN 1990-048949, XP-002261474, JP 2-002863, Jan. 8, 1990.
F. Svec, et al., “New Designs of Macroporous Polymers and Supports: From Separation to Biocatalysis”, Science, vol. 273, Jul. 12, 1996, pp. 205-211.

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