	US 11,939,265 B2
	High temperature thermo-acoustic barrier material with low smoke and odor
Mary C. Deats, Macungie, PA (US)
Assigned to Lydall Performance Materials (US), Inc., Lancaster, PA (US)
Filed by Lydall Performance Materials (US), Inc., Lancaster, PA (US)
Filed on Sep. 16, 2021, as Appl. No. 17/477,339.
Application 17/477,339 is a continuation in part of application No. 15/919,484, filed on Mar. 13, 2018, granted, now 11,168,602.
Prior Publication US 2022/0002204 A1, Jan. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 33/04 (2006.01); B60R 13/08 (2006.01); F01N 13/14 (2010.01); F01N 13/16 (2010.01)

CPC C04B 33/04 (2013.01) [F01N 13/14 (2013.01); F01N 13/16 (2013.01); B60R 13/0815 (2013.01); B60R 13/0869 (2013.01); F01N 2510/02 (2013.01)]

4 Claims

1. A thermal barrier material for use in shielding components of a vehicle from hot surfaces comprising:

35 to 53% of a plurality of clays by weight; and

a remainder comprising one or more of:

magnesium silicate, alumina trihydrate, alumino-borosilicate glass, rock wool, basalt fiber, acrylamide copolymer coagulant, acrylic latex, fatty alcohol alkoxylate, or anionic polyacrylamide, wherein

a sample of the thermal barrier material, when exposed to a temperature of 400° Celsius, produces smoke having a density less than 5 g/cm³as measured according to the ISO 5659-2:2006(E) standard, and

organic components of the thermal barrier material are limited to between 1.11% and 7.55% by weight.