US 9,809,008 B2
Laminate
Toshiaki Masui, Settsu (JP); Tomihiko Yanagiguchi, Settsu (JP); Mayuko Taeda, Settsu (JP); and Takeshi Inaba, Settsu (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Appl. No. 13/381,293
Filed by Toshiaki Masui, Settsu (JP); Tomihiko Yanagiguchi, Settsu (JP); Mayuko Taeda, Settsu (JP); and Takeshi Inaba, Settsu (JP)
PCT Filed May 19, 2010, PCT No. PCT/JP2010/058458
§ 371(c)(1), (2), (4) Date Dec. 28, 2011,
PCT Pub. No. WO2011/001756, PCT Pub. Date Jan. 6, 2011.
Claims priority of application No. 2009-156022 (JP), filed on Jun. 30, 2009; application No. 2009-179866 (JP), filed on Jul. 31, 2009; application No. 2010-030506 (JP), filed on Feb. 15, 2010; and application No. 2010-104282 (JP), filed on Apr. 28, 2010.
Prior Publication US 2012/0107617 A1, May 3, 2012
Int. Cl. B32B 25/08 (2006.01); B32B 7/04 (2006.01); B32B 7/10 (2006.01); B32B 25/14 (2006.01); B32B 27/30 (2006.01); F16L 11/04 (2006.01)
CPC B32B 25/08 (2013.01) [B32B 7/10 (2013.01); B32B 25/14 (2013.01); B32B 27/304 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2264/102 (2013.01); B32B 2264/108 (2013.01); B32B 2264/12 (2013.01); B32B 2305/77 (2013.01); B32B 2307/306 (2013.01); B32B 2307/51 (2013.01); B32B 2307/714 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/738 (2013.01); B32B 2605/00 (2013.01); F16L 11/04 (2013.01); F16L 2011/047 (2013.01); Y10T 428/31544 (2015.04)] 9 Claims
 
1. A laminate comprising a rubber layer (A) and a fluororesin layer (B) on the rubber layer (A),
wherein the rubber layer (A) is a layer made of a rubber composition for vulcanization,
the rubber composition for vulcanization contains an unvulcanized rubber (a1) which is acrylonitrile-butadiene rubber or its hydride; at least one compound (a2) selected from the group consisting of a 1,8-diazabicyclo(5.4.0)undec-7-ene salt, a 1,5-diazabicyclo(4.3.0)-non-5-ene salt, 1,8-diazabicyclo(5.4.0)undec-7-ene, and 1,5-diazabicyclo(4.3.0)-non-5-ene; magnesium oxide (a3); and silica (a4),
the amount of the compound (a2) is larger than 1.0 part by mass and not larger than 5.0 parts by mass, for each 100 parts by mass of the unvulcanized rubber (a1),
the amount of the magnesium oxide (a3) is 3 to 20 parts by mass, for each 100 parts by mass of the unvulcanized rubber (a1),
the amount of the silica (a4) is 10 to 40 parts by mass for each 100 parts by mass of the unvulcanized rubber (a1),
the fluororesin layer (B) is a layer made of a fluoropolymer composition, and
the fluoropolymer composition contains a fluoropolymer (b1) which is chlorotrifluoroethylene copolymer,
wherein the chlorotrifluoroethylene copolymer contains only a chlorotrifluoroethylene unit, tetrafluoroethylene unit and perfluoro(alkylvinylether) unit,
the ratio between the chlorotrifluoroethylene unit and the tetrafluoroethylene unit in the chlorotrifluoroethylene copolymer is chlorotrifluoroethylene unit/tetrafluoroethylene unit =15-90/85-10 (mol %),
the amount of the perfluoro(alkylvinylether) unit is not smaller than 0.5 mol % and not larger than 5 mol % of all the monomer units.