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US 2017/0015876 A1Published application
Propylene-Based Polymers for Use in Adhesive Compositions and Methods to Prepare Thereof
OwnerJurgen J.M. Schroeyers, James N. Coffey +2inventors
InventorsJurgen J.M. Schroeyers, James N. Coffey, Yann Devorest, Jennifer J. Austin
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Abstract
The present invention is related to an adhesive composition comprising (a) greater than about 65 wt % of a polymer blend and (b) a polar polyethylene components. The blend has a first and second propylene-based polymer, both different homopolymers of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin.
Claims14
An adhesive composition comprising:
- (a) a polymer blend comprising
- a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin;
- a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin;
- wherein the second propylene-based polymer is different than the first propylene-based polymer;
- wherein the polymer blend is present in the amount of about 65 wt % or more based on the adhesive composition;
- wherein the polymer blend has a melt viscosity, measured at 190° C. of about 900 to about 19,000 cP;
- and
- (b) a polar polyethylene component selected from at least one of an oxidized high density polyethylene wax, a silane-modified polyethylene, ethylene vinyl acetate, ethylene acrylate, organic acid-modified polyethylene, and combinations thereof.
5 more elements
A process to prepare an adhesive composition, comprising combining:
- (a) a polymer blend, comprising
- a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin;
- a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin;
- wherein the second propylene-based polymer is different than the first propylene-based polymer;
- wherein the polymer blend is present in the amount of about 65 wt % or more based on the adhesive composition;
- wherein the polymer blend has a melt viscosity, measured at 190° C. of about 900 to about 19,000 cP;
- and
- (b) a polar polyethylene component selected from at least one of an oxidized high density polyethylene wax, a silane-modified polyethylene, ethylene vinyl acetate, ethylene acrylate, organic acid-modified polyethylene, and combinations thereof.
5 more elements
Dependencies are inferred from the claim text.