Invention Grant
- Patent Title: Polyurethane foam
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Application No.: US16491624Application Date: 2018-03-07
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Publication No.: US11713382B2Publication Date: 2023-08-01
- Inventor: Jianfeng Wang
- Applicant: LEVITEX FOAMS LIMITED
- Applicant Address: GB Altrincham
- Assignee: LEVITEX FOAMS LIMITED
- Current Assignee: LEVITEX FOAMS LIMITED
- Current Assignee Address: GB Altrincham
- Agency: McCarter & English, LLP
- Agent Steven G. Davis; Wei Song
- Priority: GB 03738 2017.03.08
- International Application: PCT/CN2018/078261 2018.03.07
- International Announcement: WO2018/161913A 2018.09.13
- Date entered country: 2019-09-06
- Main IPC: C08J9/14
- IPC: C08J9/14 ; C08G18/20 ; C08G18/24 ; C08G18/48 ; C08G18/76

Abstract:
A polyurethane foam is disclosed having unique load bearing characteristics rendering it suitable for a variety of applications. The foam exhibits high surface-softness and smoothness properties, making it well-suited for use in articles such as pillows and mattress toppers. However, upon continued application of pressure, the resilience of the foam increases sharply, translating into a remarkable support characteristics that make the foam suitable for use in the seat portions of chairs and sofas, as well as in the base portion of mattresses. The foams therefore address the limitations of conventional, high-resilience and visco-elastic polyurethane foams. A process of making the foam and its use in various articles is also disclosed.
Public/Granted literature
- US20210179799A1 POLYURETHANE FOAM Public/Granted day:2021-06-17
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