US 11,702,525 B2
Cationomeric polyolefin compositions and methods for production and use thereof
Jason A. Mann, Houston, TX (US)
Assigned to ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed by ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed on Nov. 22, 2019, as Appl. No. 16/692,698.
Claims priority of provisional application 62/775,155, filed on Dec. 4, 2018.
Prior Publication US 2020/0172691 A1, Jun. 4, 2020
Int. Cl. C08J 9/04 (2006.01); C08F 8/30 (2006.01); C08F 210/18 (2006.01); C08F 212/14 (2006.01); C08F 212/08 (2006.01); C08F 210/10 (2006.01); C08J 9/28 (2006.01); C08F 8/42 (2006.01)
CPC C08J 9/04 (2013.01) [C08F 8/30 (2013.01); C08F 8/42 (2013.01); C08F 210/10 (2013.01); C08F 212/08 (2013.01); C08F 212/21 (2020.02); C08J 9/286 (2013.01); C08F 210/18 (2013.01); C08J 2201/0543 (2013.01); C08J 2323/22 (2013.01); C08J 2325/08 (2013.01); C08J 2325/18 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A foamed polyolefin composition comprising:
a random cationomeric polyolefin copolymer comprising at least a first monomer and a second monomer, the first monomer being a neutral monomer and the second monomer having a side chain bearing a cationic moiety; and
a gas component disposed in a plurality of voids within the random cationomeric polyolefin copolymer,
wherein the cationic moiety is tethered to a benzylic carbon atom or an allylic carbon atom in the second monomer by a spacer group, and
wherein the random cationomeric polyolefin copolymer comprises a reaction product obtained from a reaction between
1) a random terpolymer of styrene, 4-vinylbenzyl bromide or 4-vinylbenzyl chloride, and isobutylene, and
2) a nucleophilic component selected from the group consisting of a tertiary amine, an N-substituted imidazole, a pyridine, and a tertiary phosphine.