Patent ID: 11919979
Assignee: DOW GLOBAL TECHNOLOGIES LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 12:
13. An ionomer comprising a first ethylene acid copolymer and a second ethylene acid copolymer, wherein:
the first ethylene acid copolymer is the polymerized reaction product of:
ethylene;
from 2 to 20 wt. % of monocarboxylic acid based on the total wt. % of monomer present in the first ethylene acid copolymer; and
from 0 to 40 wt. % of alkyl acrylate, based on the total wt. % of monomer present in the first ethylene acid copolymer;

the second ethylene acid copolymer is the polymerized reaction product of ethylene,
from 0 to 20 wt. % of monocarboxylic acid based on the total wt. % of monomer present in the second ethylene-based polymer;
from 0 to 40 wt. % of alkyl acrylate, based on the total wt. % of the monomers present in the second ethylene acid copolymer; and
from 2 to 15 wt. % unsaturated dicarboxylic acid monomer, based on the total wt. % of the monomers present in the second ethylene acid copolymer; and

wherein the ratio of the first ethylene acid copolymer to the second ethylene acid copolymer is from 90/10 wt. % to 10/90 wt. %;
wherein from 10 to 80 mole percent of total acid units are neutralized, and from 20 to 60 mole percent of the total acid units of the blend are neutralized by a magnesium cation.