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.
Type:
Grant
Filed:
July 12, 2023
Date of Patent:
June 3, 2025
Assignees:
Hyundai Motor Company, Kia Corporation, PIUSYS Co., Ltd., NVH Korea, Inc.
Inventors:
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
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.
Type:
Application
Filed:
July 12, 2023
Publication date:
November 23, 2023
Applicants:
HYUNDAI COMPANY, KIA Corporation, PIUSYS CO., LTD., NVH KOREA, INC.
Inventors:
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
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.
Type:
Grant
Filed:
August 24, 2020
Date of Patent:
September 5, 2023
Assignees:
Hyundai Motor Company, Kia Motors Corporation, PIUSYS Co., Ltd., NVH Korea, Inc.
Inventors:
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
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.
Type:
Application
Filed:
August 24, 2020
Publication date:
April 1, 2021
Applicants:
HYUNDAI MOTOR COMPANY, Kia Motors Corporation, PIUSYS CO., LTD., NVH KOREA, INC.
Inventors:
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