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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9090766 B1

PDFFull Text
Date of Patent:
Jul. 28, 2015

Filed:

Apr. 30, 2014

Drying substances, preparation and use thereof

Applicant:

Oridion Medical (1987) Ltd., Jerusalem, IL;

Inventors:

Moshe Rakhman, Nesher, IL;

Tehila Faiglin, Haifa, IL;

Amos Ophir, Karkur, IL;

Gershon Levitsky, Jerusalem, IL;

Joshua Lewis Colman, Jerusalem, IL;

Assignee:

Oridion Medical 1987 Ltd., Jerusalem, IL;

Attorneys:

Rodney J. Fuller

Booth Udall Fuller, PLC

Primary Examiner:

Mark Kaucher

Int. Cl.
CPC ...
B01D 53/28 (2006.01); C08L 33/26 (2006.01); B01D 53/26 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/04 (2006.01); B01D 69/10 (2006.01); B01D 71/82 (2006.01); G01N 1/22 (2006.01); C08L 81/06 (2006.01); B01D 61/36 (2006.01); B01D 71/68 (2006.01);
U.S. Cl.
CPC ...
C08L 33/26 (2013.01); B01D 53/268 (2013.01); B01D 53/28 (2013.01); B01D 67/0006 (2013.01); B01D 67/006 (2013.01); B01D 69/02 (2013.01); B01D 69/046 (2013.01); B01D 69/10 (2013.01); B01D 71/82 (2013.01); C08L 81/06 (2013.01); G01N 1/22 (2013.01); B01D 61/362 (2013.01); B01D 71/68 (2013.01); B01D 2323/02 (2013.01); B01D 2323/30 (2013.01); B01D 2323/38 (2013.01); B01D 2325/18 (2013.01);
Abstract

There is provided herein a dryer polymer substance adapted to pervaporate a fluid (such as water, water vapor or both), the polymer substance includes: a porous support member having a plurality of pores, wherein at least a portion of the pores are filled with a cross-linked co-polymer comprising (i) a cationic monomer and an anionic monomer, (ii) a zwitterionic monomer, or a combination thereof. The substance may include a membrane or a tube. There is further provided herein a process for the preparation of a dryer polymer substance adapted to pervaporate a fluid (such as water, water vapor or both), the process includes impregnating into at least a portion of the pores of a porous support member a solution which comprises: (i) a cationic monomer and an anionic monomer, (ii) a zwitterionic monomer, or a combination of (i) and (ii), graft co-polymerizing the anionic monomer and the cationic monomer and/or the zwitterionic monomer within at least a portion of the pores to form a co-polymer, and cross-linking the co-polymer, such that the pores of the support member are at least partially grafted with a cross-linked co-polymer bound to the support member.

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