Process for preparing interpolymers of ethylene and 2,3-dihydrofuran, or a heteroatom substituted olefin monomer and ethylene interpolymers
AssigneeEastman Chemical Company
InventorsJose Pedro Martinez, Jeffrey James Vanderbilt
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Abstract
There is described a novel process for preparing interpolymers comprising ethylene, at least one monomer unit selected from heteroatom substituted olefin monomer units derived from a compound of the formula XV wherein E and G represent the same or different heteroatoms selected from oxygen, nitrogen, and sulfur, which are bound to a hydrogen atom, a hydrocarbyl group, or a substituted hydrocarbyl group, or are joined by a linking group; and n is 0 or an integer from 1-20; or 2,3-dihydrofuran, and optionally carbon monoxide, and interpolymers prepared thereby, including novel interpolymers having melting peak temperatures (Tm) equal to or greater than 50° C.
Claims16
An interpolymer comprising from about 0.1 to about 99.9 mol percent of ethylene, from 0 to about 10 mol percent of carbon monoxide, and from about 0.1 to about 99.9 mol percent of at least one, or more, monomer units selected from the group consisting of 2,3-dihydrofuran and a heteroatom substituted olefin monomer unit derived from a compound of the formula XV
- wherein E and G represent the same or different heteroatoms selected from oxygen, nitrogen, and sulfur, which are bound to a hydrogen atom, a hydrocarbyl group, or a substituted hydrocarbyl group, or are joined by a linking group;
- and n is 0 or an integer from 1-20, and said interpolymer having a melting peak temperature (Tm) equal to or greater than 50° C.
A process for preparing an interpolymer comprising polymerizing from about 0.1 to about 99.9 mol percent of ethylene, from 0 to about 10 mol percent of carbon monoxide, and from about 0.1 to about 99.9 mol percent of at least one, or more, monomer units selected from the group consisting of 2,3-dihydrofuran and a heteroatom substituted olefin monomer unit derived from a compound of the formula XV
- wherein E and G represent the same or different heteroatoms selected from oxygen, nitrogen, and sulfur, which are bound to a hydrogen atom, a hydrocarbyl group, or a substituted hydrocarbyl group, or are joined by a linking group;
- and n is 0 or an integer from 1-20, at a temperature of from about 150° C. to about 350° C., at a pressure of from about 68 MPa's to about 304 MPa's, and for a period of from about 2 to about 600 seconds, in the presence of at least one, or more free radical initiator wherein the interpolymer has a melting peak temperature (Tm) equal to or greater than 50° C.
Dependencies are inferred from the claim text.