公开(公告)号：US20220250367A1

公开(公告)日：2022-08-11

申请号：US17616540

申请日：2020-06-03

申请人： AGOTEX S.R.L.

发明人： Nicolò MOSCA

IPC分类号： B32B27/12 ,  B32B5/02 ,  B32B27/30 ,  B32B38/00 ,  B32B38/08 ,  B29B11/16 ,  B29C45/00 ,  D04H1/4382 ,  D04H1/435 ,  D04H1/43

摘要： Disclosed is a non-flammable thermal insulating composite substrate for motor vehicles including: a textile component constituted by a layer of needle-sewn non-woven fabric composed of a percentage of pre-oxidized polyacrylonitrile fiber included between 40% and 70%, preferably 58% and of the remaining percentage of polyethylene glycol-terephthalate fiber, the textile component having weight preferably 400 gr/m2; and a barrier fixed to the textile component using a spreading process, constituted by a thermoplastic resin based on low density polyethylene added with non-halogen flame retardants, the barrier having weight preferably 100 gr/m2. The composite substrate has the following features: a thickness included between 2 mm and 5 mm, preferably 3.8 mm; a weight included between 300 gr/m2 and 700 gr/m2, preferably 500 gr/m2; odorless; no emission of fumes; dimensionally stable, even at heatstroke, with a maximum variation of 1%; and non-flammability.