US 12,454,084 B2
Tray tables comprising plant fibers and methods for manufacturing tray tables comprising plant fibers
Jun Lin, Jinan (CN); Xiaoling Li, Beijing (CN); Zhao Wang, Beijing (CN); Ji Shengcheng, Beijing (CN); Xin Jiang, Beijing (CN); and Li Dongsheng, Beijing (CN)
Assigned to The Boeing Company, Arlington, VA (US); and Beijing Aircraft Technology Research Institute (BATRI) of COMAC, Ltd., Beijing (CN)
Filed by The Boeing Company, Arlington, VA (US); and Beijing Aircraft Technology Research Institute (BATRI) of COMAC, Ltd., Beijing (CN)
Filed on Jun. 30, 2023, as Appl. No. 18/345,172.
Prior Publication US 2024/0383178 A1, Nov. 21, 2024
Int. Cl. B29C 45/14 (2006.01); B29B 9/10 (2006.01); B29B 9/14 (2006.01); B29C 45/00 (2006.01); B29K 23/00 (2006.01); B29K 67/00 (2006.01); B29K 77/00 (2006.01); B29K 105/00 (2006.01); B29K 105/04 (2006.01); B29K 105/12 (2006.01); B29K 311/10 (2006.01); B29K 509/00 (2006.01); B29L 31/44 (2006.01)
CPC B29C 45/14795 (2013.01) [B29B 9/10 (2013.01); B29B 9/14 (2013.01); B29C 45/0001 (2013.01); B29C 45/0005 (2013.01); B29K 2023/00 (2013.01); B29K 2067/046 (2013.01); B29K 2077/00 (2013.01); B29K 2105/0026 (2013.01); B29K 2105/041 (2013.01); B29K 2105/12 (2013.01); B29K 2105/251 (2013.01); B29K 2311/10 (2013.01); B29K 2509/00 (2013.01); B29K 2995/0016 (2013.01); B29L 2031/448 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for manufacturing a tray table comprising:
homogenizing a halogen-free flame retardant to obtain a homogeneous halogen-free flame retardant;
blending a molten thermoplastic resin with plant fibers, the homogeneous halogen-free flame retardant, and a compatibilizer to obtain a plant fiber composite material;
extruding the plant fiber composite material to obtain a granular composite material;
mixing the granular composite material with a foaming agent to obtain a foamable granular mixture; and
injection molding the foamable granular mixture to obtain the tray table.