US2004200490A1PendingUtilityA1

Cigarette filter and filter-tipped cigarette

Priority: Oct 30, 2001Filed: Apr 29, 2004Published: Oct 14, 2004
Est. expiryOct 30, 2021(expired)· nominal 20-yr term from priority
A24D 3/163A24D 3/14
40
PatentIndex Score
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Cited by
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Claims

Abstract

A cigarette filter includes two or more filter sections of the following filter sections a filter section added with a liquid fatty acid ester or a liquid fatty acid having a viscosity of 1 to 300 cP, a filter section added with a glycol having a viscosity of 1 to 300 cP, and a filter section added with a charcoal.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A cigarette filter comprising two or more filter sections of the following three filter sections (A) to (C): 
 (A) a filter section added with a liquid fatty acid ester or a liquid fatty acid, having a viscosity of 1 to 300 cP;    (B) a filter section added with a glycol having a viscosity of 1 to 300 cP is; and    (C) a filter section added with a charcoal.    
     
     
         2 . The filter according to  claim 1 , wherein the fatty acid ester is olive oil.  
     
     
         3 . The filter according to  claim 1 , wherein the glycol is propylene glycol or polyethylene glycol.  
     
     
         4 . The filter according to  claim 1 , comprising the filter section (A) and/or filter section (B), and the filter section (C) on a downstream side of these filter sections.  
     
     
         5 . The filter according to  claim 1 , comprising a plain filter section at a most downstream position.  
     
     
         6 . A cigarette comprising a tobacco rod, and a filter according to  claim 1 , provided at one end of the tobacco rod.

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