Patent ID: 11964073
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 15:
16. A method of providing a cured composition, the method comprising:
a) preparing or obtaining a part A composition comprising an oxalamido-containing compound having a molecular weight of at least 250 grams/mole and having at least two oxalamido groups of formula —NR2—(CO)—(CO)—OR1,, wherein
R1 is a hydrocarbyl; and
R2 is hydrogen or hydrocarbyl; and
b) preparing or obtaining a part B composition comprising a derivatized polyethylene imine comprising a reaction product of a polyethylene imine with a glycidyl ether, the derivatized polyethylene imine having monomeric units of Formula (VI), , wherein
R3 is an alkyl having at least 4 carbon atoms, an aryl, an aralkyl, or an alkaryl; and
each asterisk (*) is an attachment site to another monomeric unit of the derivatized polyethylene imine;
c) combining part A with part B to form a reaction mixture; and
d) curing the reaction mixture to form a cured composition that is an adhesive.