Invention Grant
- Patent Title: Smoking article filter including degradable filter component
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Application No.: US15035054Application Date: 2014-12-22
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Publication No.: US10292421B2Publication Date: 2019-05-21
- Inventor: Leonardo Nappi
- Applicant: PHILIP MORRIS PRODUCTS S.A.
- Applicant Address: CH Neuchatel
- Assignee: Philip Morris Products S.A.
- Current Assignee: Philip Morris Products S.A.
- Current Assignee Address: CH Neuchatel
- Agency: Mueting, Raasch & Gebhardt, P.A.
- Priority: EP13199236 20131220
- International Application: PCT/EP2014/079052 WO 20141222
- International Announcement: WO2015/092071 WO 20150625
- Main IPC: A24D3/00
- IPC: A24D3/00 ; A24D1/00 ; A24F1/00 ; D01F8/00 ; A24F47/00 ; A24D3/06 ; A24D1/02 ; A24D3/10 ; A24D3/14 ; A24D1/04 ; A24D3/02 ; A24D3/04 ; A24D3/08 ; D01F8/02 ; D01F8/14
Abstract:
A filter for a smoking article includes a filter component formed from a solution of cellulose acetate and a degradable polymer in aceton, the degradable polymer being soluble in acetone and degrading in the presence of water. In a first aspect of the invention, the filter component is a filter segment (16) formed of a plurality of fibers formed from the degradable solution. In a second aspect of the invention, the filter component is a wrapper (39) circumscribing at least a segment of the filter.
Public/Granted literature
- US20160270437A1 SMOKING ARTICLE FILTER INCLUDING DEGRADABLE FILTER COMPONENT Public/Granted day:2016-09-22
Information query
