US 11,911,341 B2
Multilayer vessel, and application thereof
Shota Arakawa, Kanagawa (JP); Toshiya Naito, Tokyo (JP); Satoshi Okada, Kanagawa (JP); Kenichiro Usuda, Kanagawa (JP); Takumi Toida, Niigata (JP); Haruka Okazaki, Tokyo (JP); and Fumihiro Ito, Tokyo (JP)
Assigned to MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo (JP)
Appl. No. 16/077,640
Filed by MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo (JP)
PCT Filed Feb. 15, 2017, PCT No. PCT/JP2017/005537
§ 371(c)(1), (2) Date Aug. 13, 2018,
PCT Pub. No. WO2017/141969, PCT Pub. Date Aug. 24, 2017.
Claims priority of application No. JP2016-026632 (JP), filed on Feb. 16, 2016; and application No. JP2016-236445 (JP), filed on Dec. 6, 2016.
Prior Publication US 2019/0070072 A1, Mar. 7, 2019
Int. Cl. A61J 1/14 (2023.01); A61J 1/05 (2006.01); B65D 1/09 (2006.01); B32B 27/32 (2006.01); B32B 27/08 (2006.01); B32B 27/34 (2006.01); B32B 1/02 (2006.01); B65D 1/00 (2006.01); C08G 69/32 (2006.01); A61J 1/06 (2006.01); B32B 27/18 (2006.01); A61M 5/31 (2006.01); B29C 49/00 (2006.01); B29C 49/06 (2006.01); C08G 69/06 (2006.01); C08G 69/26 (2006.01); B29K 77/00 (2006.01); B29L 31/00 (2006.01)
CPC A61J 1/1468 (2015.05) [A61J 1/05 (2013.01); A61J 1/06 (2013.01); A61M 5/3129 (2013.01); B29C 49/0005 (2013.01); B29C 49/06 (2013.01); B32B 1/02 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/32 (2013.01); B32B 27/325 (2013.01); B32B 27/34 (2013.01); B65D 1/00 (2013.01); B65D 1/09 (2013.01); C08G 69/06 (2013.01); C08G 69/26 (2013.01); C08G 69/32 (2013.01); A61M 2005/3131 (2013.01); A61M 2207/00 (2013.01); B29C 2949/3032 (2022.05); B29C 2949/3034 (2022.05); B29K 2077/00 (2013.01); B29L 2031/712 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2250/05 (2013.01); B32B 2250/24 (2013.01); B32B 2250/40 (2013.01); B32B 2307/30 (2013.01); B32B 2307/412 (2013.01); B32B 2307/7244 (2013.01); B32B 2439/80 (2013.01); B32B 2535/00 (2013.01); C08G 2390/00 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A multilayer vessel comprising:
a layer (X) that contains at least one type of polyolefin resin as a major ingredient; and
a layer (Y) that contains a polyamide resin (A) as a major ingredient,
the polyamide resin (A) being composed of a structural unit derived from diamine, and a structural unit derived from dicarboxylic acid,
70 mol % or more of the structural unit derived from diamine being derived from metaxylylenediamine, and
30 to 60 mol % of the structural unit derived from dicarboxylic acid being derived from straight chain aliphatic α,ω-dicarboxylic acid having 4 to 20 carbon atoms, and 70 to 40 mol % being derived from isophthalic acid,
wherein the layer (X) contains a cycloolefin-based polymer (B) as the major ingredient,
the cycloolefin-based polymer (B) has a glass transition temperature of 50 to 170° C.,
the polyamide resin (A) has a glass transition temperature of 100 to 160° C.,
the cycloolefin-based polymer (B) shows a melt viscosity of 100 to 250 Pa sec at one or more temperatures between 260 and 300° C., under a shear rate of 1216 sec−1, and
the polyamide resin (A) shows a melt viscosity of 200 to 400 Pa sec at 270° C., under a shear rate 1216 sec−1.