Functionalized olefin polymers, compositions and articles prepared therefrom, and methods for making the same

摘要

The invention provides polyolefin blend compositions of polar and/or non-polar polymers, with at least one functionalized polyolefin polymer selected from the group consisting of: amine functionalized, hydroxyl functionalized, imide functionalized, anhydride functionalized, or carboxylic acid functionalized polyolefin polymers. The invention also provides methods for making the functionalized polyolefin polymer. The invention also provides for materials and articles containing at least one component prepared from such compositions.

主权项

1. A process for preparing a functionalized polyolefin, said process comprising the following steps:
A) grafting onto the backbone of a polyolefin at least one compound comprising at least one amine-reactive group to form a grafted polyolefin at a temperature from 130° C. to 170° C.; and B) reacting a primary-secondary diamine, with the grafted polyolefin, and selected from compounds of structure (I)
H2N—R1—NH—R2  (I),wherein R1 is a divalent hydrocarbon radical; and R2 is a monovalent hydrocarbon radical containing at least 2 carbon atoms, and optionally may be substituted with a heteroatom containing group;wherein step B) takes place subsequent to step A) without the isolation of the grafted polyolefin in solid form, andwherein both steps A) and B) take place in a melt reaction, andwherein the level of primary-secondary diamine is from 2 to 8 mole equivalent of amine to grafted anhydride; and
wherein the polyolefin is selected from the group consisting of the following: high density polyethylene, low density polyethylene, linear low density polyethylene, homogeneously branched linear ethylene/alpha-olefin interpolymers, homogeneously branched substantially linear ethylene/alpha-olefin interpolymers, and combinations thereof, andwherein step A takes place in an extruder, and step B takes place in a gear pump.