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:
Jan. 26, 2016
Filed:
Jan. 18, 2013
Ola John Ivar Karlsson, Lund, SE;
Johan Fredrik Billing, Lund, SE;
Ecevit Yilmaz, Bjärred, SE;
Jan Robert Christian Svensson Stark, Växjö, SE;
Ola John Ivar Karlsson, Lund, SE;
Johan Fredrik Billing, Lund, SE;
Ecevit Yilmaz, Bjärred, SE;
Jan Robert Christian Svensson Stark, Växjö, SE;
British American Tobacco (Investments) Limited, London, GB;
Abstract
Porous beads are provided of a polymer of a non-acidic monomer and a cross-linker having polar functionality, one of which is hydrophilic, the other of which is hydrophobic, further comprising residues of polyvinyl alcohol. The beads may be molecularly imprinted or non-molecularly imprinted. The use of such beads in the removal of nitroso-containing compounds from material containing them is also disclosed. Also disclosed is a non-molecularly imprinted polymer which is selectively adsorbent for at least one tobacco specific nitrosamine in the presence of nicotine, said polymer being a polymerization product of a non-acidic monomer and a cross-linker having polar functionality, one of which is hydrophilic, the other of which is hydrophobic.