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.:
Date of Patent:
Dec. 04, 1984
Filed:
Jun. 02, 1980
Erich F Meitzner, Glenside, PA (US);
James A Oline, Wyncote, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
Ionic solutes are removed from fluids under oxidizing conditions or conditions of high physical stress or shock by contacting the fluids with ion exchange resin beads having macroreticular structure. These beads have a particular resistance to such conditions, and are formed by functionalizing with ion exchange functional groups a copolymer of 4-25% polyvinylidene crosslinking monomer and 96-75% monoethylenically unsaturated monomer or monomers, suspension polymerized in a liquid which is a solute for the monomer mixture, which does not substantially swell the copolymer, and which is present with the polyvinylidene monomer in an amount sufficient to cause separation of the copolymer from the dissolved monomer.