Invention Grant
- Patent Title: Multi-layer susceptor assembly for inductively heating an aerosol-forming substrate
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Application No.: US16495198Application Date: 2018-03-29
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Publication No.: US11405988B2Publication Date: 2022-08-02
- Inventor: Andreas Michael Rossoll , Oleg Fursa
- 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 Group
- Priority: EP17164357 20170331
- International Application: PCT/EP2018/058041 WO 20180329
- International Announcement: WO2018/178218 WO 20181004
- Main IPC: A24F13/00
- IPC: A24F13/00 ; H05B6/06 ; H05B6/10 ; A24D1/20 ; A24F40/465 ; A24F40/20

Abstract:
The present invention relates to a multi-layer susceptor assembly for inductively heating an aerosol-forming substrate which comprises at least a first layer and a second layer intimately coupled to the first layer. The first layer comprises a first susceptor material. The second layer comprises a second susceptor material having a Curie temperature lower than 500° C. The susceptor assembly further comprises a third layer intimately coupled to the second layer which comprises a specific stress-compensating material and a specific layer thickness such that after a processing of the multi-layer susceptor assembly the third layer exerts a tensile or compressive stress onto the second layer at least in a compensation temperature range for counteracting a compressive or tensile stress exerted by the first layer onto the second layer. The compensation temperature range extends at least from 20 K below the Curie temperature of the second susceptor material up to the Curie temperature of the second susceptor material.
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