- Patent Title: Low-density polyurethane foam composition as sound-absorbing material having improved appearance formability, smell reduction and sound absorption performance, method for manufacturing polyurethane foam and polyurethane foam manufactured therefrom
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Application No.: US17000640Application Date: 2020-08-24
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Publication No.: US11746203B2Publication Date: 2023-09-05
- Inventor: Jung Wook Lee , Se Hoon Kim , Ji Wan Kim , Jin Hyung Lee , Seong Je Kim , Dae Yong Kim , Jong Hyun Ryu , Myung Sik Lee , Min Seo Wu
- Applicant: HYUNDAI MOTOR COMPANY , KIA Motors Coporation , PIUSYS CO., LTD. , NVH KOREA, INC.
- Applicant Address: KR Seoul
- Assignee: Hyundai Motor Company,Kia Motors Corporation,PIUSYS Co., Ltd.,NVH Korea, Inc.
- Current Assignee: Hyundai Motor Company,Kia Motors Corporation,PIUSYS Co., Ltd.,NVH Korea, Inc.
- Current Assignee Address: KR Seoul; KR Seoul; KR Paju-si; KR Ulsan
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR 20190120467 2019.09.30
- Main IPC: B29C44/02
- IPC: B29C44/02 ; C08G18/08 ; C08G18/10 ; C08G18/16 ; C08G18/18 ; C08G18/20 ; C08G18/32 ; C08G18/48 ; C08G18/66 ; C08G18/70 ; C08J9/00 ; C08J9/04 ; G10K11/162
Abstract:
Disclosed are a polyurethane foam composition for sound-absorbing materials, a method for manufacturing a polyurethane foam and a polyurethane foam manufactured using the method. Particularly, disclosed are a composition containing a polyol mixture including a polyol and an additive, and isocyanate, and the manufacture of a low-density polyurethane foam for sound-absorbing materials, which is imparted with improved appearance formability, reduced smell and enhanced sound absorption performance by controlling the content of the composition and the conditions for foaming the composition.
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