US 11,833,801 B2
Sealer for body panel reinforcement
Sungchul Shin, Incheon (KR); and Ineui Jee, Seoul (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Nov. 3, 2021, as Appl. No. 17/517,834.
Claims priority of application No. 10-2021-0002474 (KR), filed on Jan. 8, 2021.
Prior Publication US 2022/0219426 A1, Jul. 14, 2022
Int. Cl. B32B 5/02 (2006.01); B32B 15/14 (2006.01); B32B 15/18 (2006.01); B32B 27/38 (2006.01)
CPC B32B 5/024 (2013.01) [B32B 15/14 (2013.01); B32B 15/18 (2013.01); B32B 27/38 (2013.01); B32B 2255/02 (2013.01); B32B 2255/06 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/101 (2013.01); B32B 2307/546 (2013.01); B32B 2307/56 (2013.01); B32B 2307/72 (2013.01); B32B 2307/732 (2013.01); B32B 2605/00 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A sealer for body panel reinforcement, comprising:
a panel, wherein the panel is a steel plate;
a sealer layer on the panel for a vehicle body; and
a skin layer disposed on the sealer layer, the skin layer including a glass fiber reinforced plastic comprising glass fibers woven as weft and warp threads;
wherein the glass fibers of the glass fiber reinforced plastic have a fineness in the range of about 40 deniers to about 50 deniers;
wherein a thread count of the glass fibers of the glass fiber reinforced plastic is about 70 threads and about 80 threads;
wherein a thickness of the skin layer is about 0.45 mm to about 0.75 mm;
wherein a thickness of the sealer layer is about 1.0 mm to about 1.5 mm; and
wherein a flexural strength of the sealer is 20 kgf or greater, a cold-resistant flexibility of the sealer is 1.7 mm or less, and a vibration-damping property of the sealer is 0.02 or greater.