US 9,809,700 B2
Air hose for automobile
Akishige Seo, Kiyosu (JP); and Hidekazu Kurimoto, Kiyosu (JP)
Assigned to TOYODA GOSEI CO., LTD., Aichi-pref. (JP)
Appl. No. 15/113,081
Filed by TOYODA GOSEI CO., LTD., Kiyosu-si, Aichi-ken (JP)
PCT Filed Jun. 10, 2015, PCT No. PCT/JP2015/066665
§ 371(c)(1), (2) Date Jul. 21, 2016,
PCT Pub. No. WO2016/051874, PCT Pub. Date Apr. 7, 2016.
Claims priority of application No. 2014-199499 (JP), filed on Sep. 29, 2014.
Prior Publication US 2017/0002183 A1, Jan. 5, 2017
Int. Cl. C08L 9/02 (2006.01); C08K 5/357 (2006.01); C08K 5/40 (2006.01); C08K 5/47 (2006.01); C08K 5/11 (2006.01); C08K 5/43 (2006.01); F16L 11/04 (2006.01)
CPC C08L 9/02 (2013.01) [C08K 5/11 (2013.01); C08K 5/357 (2013.01); C08K 5/40 (2013.01); C08K 5/43 (2013.01); C08K 5/47 (2013.01); F16L 11/04 (2013.01)] 2 Claims
OG exemplary drawing
 
1. An air hose for an automobile, which has a two-layered structure of an inner tube made of an NBR composition and an outer cover made of a CSM composition, the air hose characterized in that
the NBR composition satisfies (A) and (B) below:
(A) an unvulcanized NBR in which an amount of AN is 30 to 50 and a Mooney viscosity (ML (1+4) 100° C.) is 50 to 90, is vulcanized in the presence of 0.5 to 7.0 parts by mass of a thiuram compound serving as a vulcanization accelerator, 0 to 2.5 parts by mass of 4,4′-dithio dimorpholine, and 2.0 to 7.0 parts by mass of a thiazole compound to 100 parts by mass of the unvulcanized NBR; and
(B) 5 to 50 parts by mass of a plasticizer having a molecular weight of 700 to 2,000 is blended to 100 parts by mass of the unvulcanized NBR.