High Temperature Thermo-Acoustic Barrier Material with Low Smoke and Odor

    公开(公告)号:US20220002204A1

    公开(公告)日:2022-01-06

    申请号:US17477339

    申请日:2021-09-16

    发明人: Mary C. DEATS

    IPC分类号: C04B33/04 F01N13/14 F01N13/16

    摘要: A thermal barrier material for use in shielding components of a vehicle from hot exhaust surfaces includes 35 to 53% of a plurality of clays by weight and a remainder including magnesium silicate, alumina trihydrate, alumino-borosilicate glass, rock wool, basalt fiber, acrylamide copolymer coagulant, acrylic latex, fatty alcohol alkoxylate, or anionic polyacrylamide. A sample of the thermal barrier material, when exposed to a temperature of 400° Celsius, produces smoke having a density less than 5 g/cm3 as measured according to the ISO 5659-2:2006(E) standard.

    High temperature thermo-acoustic barrier material with low smoke and odor

    公开(公告)号:US11168602B2

    公开(公告)日:2021-11-09

    申请号:US15919484

    申请日:2018-03-13

    发明人: Mary C. Deats

    IPC分类号: F01N13/14

    摘要: A thermal barrier material is disclosed for applications such as heat shields in automobiles and other vehicles. The thermal barrier material is made on a Fordenier paper making machine from a slurry that is very low in organic compounds that can cause smoke and odor when exposed to high temperatures. A first thermal barrier material is disclosed that can withstand up to 650° C. and a second thermal barrier material is disclosed that can withstand up to 1000° C. In each case, the barrier material withstands it max temperature specification while producing extremely low quantities of smoke and extremely low levels of offensive odors. Prior art thermal barrier materials with similar temperature specifications on the other hand produce many times the smoke and offensive odors at the same temperatures and do so for a far longer time.