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

Claim 0:
1. A ionomer comprising an ethylene acid copolymer, wherein:
the ethylene acid copolymer comprises the polymerized reaction product of:
ethylene;
from 2 to 20 wt. % of monocarboxylic acid monomer based on the total wt. % of the monomers present in the ethylene acid copolymer;
from 2 to 15 wt. % of unsaturated dicarboxylic acid monomer based on the total wt. % of the monomers present in the ethylene acid copolymer; and

wherein 10 to 70 mole percent of total acid units of the ethylene acid copolymer are neutralized by a magnesium cation;
wherein the ionomer exhibits a dimensional change of less than 25% under a stress of 20 psi at a temperature of 100° C. over a period of 30 minutes.