US 12,152,124 B2
Ethylene-vinyl alcohol copolymer composition, ethylene-vinyl alcohol copolymer composition for melt forming, pellets, and multilayer structure
Ryohei Komuro, Tokyo (JP); Shintaro Usui, Tokyo (JP); Daichi Nishimura, Tokyo (JP); and Minako Ikeshita, Tokyo (JP)
Assigned to MITSUBISHI CHEMICAL CORPORATION, Tokyo (JP)
Filed by Mitsubishi Chemical Corporation, Tokyo (JP)
Filed on Nov. 26, 2019, as Appl. No. 16/695,939.
Application 16/695,939 is a continuation of application No. PCT/JP2018/024306, filed on Jun. 27, 2018.
Claims priority of application No. 2017-125564 (JP), filed on Jun. 27, 2017; and application No. 2017-131682 (JP), filed on Jul. 5, 2017.
Prior Publication US 2020/0095396 A1, Mar. 26, 2020
Int. Cl. C08K 3/11 (2018.01); B29B 7/00 (2006.01); B29B 7/72 (2006.01); B29B 9/12 (2006.01); B29K 23/00 (2006.01); B32B 7/12 (2006.01); B32B 25/08 (2006.01); B32B 25/14 (2006.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/20 (2006.01); B32B 27/22 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 37/15 (2006.01); C08F 6/02 (2006.01); C08K 3/32 (2006.01); C08K 13/02 (2006.01); B29B 9/06 (2006.01); B29K 105/00 (2006.01); C08K 5/098 (2006.01)
CPC C08K 3/11 (2018.01) [B29B 7/007 (2013.01); B29B 7/726 (2013.01); B29B 9/12 (2013.01); B32B 7/12 (2013.01); B32B 25/08 (2013.01); B32B 25/14 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/20 (2013.01); B32B 27/22 (2013.01); B32B 27/302 (2013.01); B32B 27/304 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/325 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 37/153 (2013.01); C08F 6/02 (2013.01); C08K 3/32 (2013.01); C08K 13/02 (2013.01); B29B 9/06 (2013.01); B29K 2023/086 (2013.01); B29K 2105/0044 (2013.01); B32B 2250/24 (2013.01); B32B 2270/00 (2013.01); B32B 2307/73 (2013.01); B32B 2307/732 (2013.01); B32B 2439/46 (2013.01); B32B 2439/60 (2013.01); B32B 2439/70 (2013.01); B32B 2439/80 (2013.01); C08K 2003/328 (2013.01); C08K 5/098 (2013.01)] 9 Claims
 
1. An ethylene-vinyl alcohol copolymer composition comprising:
(A) an ethylene-vinyl alcohol copolymer;
(B) a compound of a long Periodic Table 4th-period d-block metal; and
(C) an iron compound;
wherein the ethylene-vinyl alcohol copolymer (A) comprises an ethylene structural unit content of 20 to 60 mol %;
wherein the compound of a long Periodic Table 4th-period d-block metal (B) is a zinc organic salt;
wherein the iron compound (C) is present in an amount of 0.01 to 5 ppm on a metal basis based on a weight of the ethylene-vinyl alcohol copolymer composition; and
wherein a weight ratio of the amount of the long Periodic Table 4th-period d-block metal compound (B) on a metal basis to the amount of the iron compound (C) on a metal basis is 30 to 5,000.