Invention Grant
- Patent Title: Composite foam article
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Application No.: US16978803Application Date: 2019-03-07
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Publication No.: US11446898B2Publication Date: 2022-09-20
- Inventor: Motonori Kudo
- Applicant: Proprietect L.P.
- Applicant Address: CA Toronto
- Assignee: Proprietect L.P.
- Current Assignee: Proprietect L.P.
- Current Assignee Address: CA Toronto
- Agency: Howard & Howard Attorneys PLLC
- International Application: PCT/IB2019/051863 WO 20190307
- International Announcement: WO2019/171329 WO 20190912
- Main IPC: B32B5/18
- IPC: B32B5/18 ; B32B7/022 ; B32B27/40 ; B60N2/58

Abstract:
A composite foam article is disclosed herein. The composite foam article comprises a surface layer and a base layer with an interface therebetween. The surface layer comprises a high-resiliency polyurethane foam having an impact resilience of greater than about 50% when tested in accordance with ASTM D3574-17, and presents a seating surface. The base layer comprises a viscoelastic polyurethane foam having an impact resilience of less than about 50% when tested in accordance with ASTM D3574-17, and presents a mounting surface opposite the seating surface. The surface layer and the base layer are present in a thickness ratio of from about 17:3 to about 2:3.
Public/Granted literature
- US20210046730A1 Composite Foam Article Public/Granted day:2021-02-18
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