Polyolefin adhesive compositions and articles made therefrom
First Claim
1. An adhesive comprising 1) functionalized component and 2) an olefin polymer comprising:
- 50 weight % or more of an alpha-olefin having 3 to 30 carbon atoms, andat least 50 ppm of a diene selected from the group consisting of;
butadiene, pentadiene, hexadiene, heptadiene, octadiene, nonadiene, decadiene, undecadiene, dodecadiene, tridecadiene, tetradecadiene, pentadecadiene, hexadecadiene, heptadecadiene, octadecadiene, nonadecadiene, icosadiene, heneicosadiene, docosadiene, tricosadiene, tetracosadiene, pentacosadiene, hexacosadiene, heptacosadiene, octacosadiene, nonacosadiene, triacontadiene, cyclopentadiene, vinylnorbornene, norbornadiene, ethylidene norbornene, divinylbenzene, and dicyclopentadiene,where the olefin polymer has a Dot T-Peel of 1 N or more on Kraft paper, an Mw of 10,000 to 100,000, a g′
measured at the Mz of 0.95 or less and a heat of fusion of 1 to 70 J/g;
where the functionalized component is selected from the group consisting of functionalized polymers, functionalized oligomers and beta nucleating agents, wherein the beta nucleating agents are materials that cause at least 5% beta crystallization of the crystallization that occurs, with a K value of 0.05 or more; and
where the Gardner color of the adhesive does not change by more than 7 Gardner units when the adhesive has been heat aged at 180°
C. for 48 hours as compared to the Gardner color of the unaged composition.
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Accused Products
Abstract
Embodiments of the present invention relate to article comprising 1) a functionalized component, 2) tackifier, and 3) an olefin polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 5 mole % of ethylene having a Dot T-Peel of 1 Newton or more, a branching index (g′) of 0.95 or less measured at the Mz of the polymer; and an Mw of 100,000 or less; where the functional component is selected from the group consisting of functionalized polymers, functionalized oligomers and beta nucleating agents; and where the Gardner color of the adhesive does not change by more than 7 Gardner units when the adhesive has been heat aged at 180° C. for 48 hours as compared to the Gardner color of the unaged composition.
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Citations
10 Claims
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1. An adhesive comprising 1) functionalized component and 2) an olefin polymer comprising:
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50 weight % or more of an alpha-olefin having 3 to 30 carbon atoms, and at least 50 ppm of a diene selected from the group consisting of;
butadiene, pentadiene, hexadiene, heptadiene, octadiene, nonadiene, decadiene, undecadiene, dodecadiene, tridecadiene, tetradecadiene, pentadecadiene, hexadecadiene, heptadecadiene, octadecadiene, nonadecadiene, icosadiene, heneicosadiene, docosadiene, tricosadiene, tetracosadiene, pentacosadiene, hexacosadiene, heptacosadiene, octacosadiene, nonacosadiene, triacontadiene, cyclopentadiene, vinylnorbornene, norbornadiene, ethylidene norbornene, divinylbenzene, and dicyclopentadiene,where the olefin polymer has a Dot T-Peel of 1 N or more on Kraft paper, an Mw of 10,000 to 100,000, a g′
measured at the Mz of 0.95 or less and a heat of fusion of 1 to 70 J/g;
where the functionalized component is selected from the group consisting of functionalized polymers, functionalized oligomers and beta nucleating agents, wherein the beta nucleating agents are materials that cause at least 5% beta crystallization of the crystallization that occurs, with a K value of 0.05 or more; and
where the Gardner color of the adhesive does not change by more than 7 Gardner units when the adhesive has been heat aged at 180°
C. for 48 hours as compared to the Gardner color of the unaged composition.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification