Multiple catalyst system for olefin polymerization and polymers produced therefrom
First Claim
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1. An adhesive comprising an olefin polymer composition comprising:
- a) from 40 to 95 mole % of a first monomer wherein the first monomer is a C3 to C8 alpha-olefin;
b) from 5 to 40 mole % of a comonomer;
c) from 0.5 to 5 mole % of a termonomers;
where the olefin polymer composition has;
a) a Dot T-Peel of 1 Newton or more on Kraft paper;
b) an Mw of at least 7,000 to 80,000;
c) a branching index (g′
) of from 0.4 to 0.90 measured at the Mz of the polymer composition; and
d) a heat of fusion of 1 to 70 J/g.
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Abstract
The present invention describes polymer comprising one or more C3 to C40 olefins and having a Mw of 100,000 or less and a Dot T-Peel of 1 Newton or more. The polymer may have a branching index (g′) of 0.95 or less measured at the Mz of the polymer, and a heat of fusion of 1 to 70 J/g. Also described are polymers of homopolypropylene or a copolymer of propylene and up to 5 mole % ethylene having: an isotactic run length of 1 to 30 as determined by Carbon 13 NMR and a percent of r dyad of greater than 20%, preferably from 20 to 70% as determined by Carbon 13 NMR. Also described are methods of making these and other polymers.
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Citations
25 Claims
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1. An adhesive comprising an olefin polymer composition comprising:
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a) from 40 to 95 mole % of a first monomer wherein the first monomer is a C3 to C8 alpha-olefin; b) from 5 to 40 mole % of a comonomer; c) from 0.5 to 5 mole % of a termonomers; where the olefin polymer composition has; a) a Dot T-Peel of 1 Newton or more on Kraft paper; b) an Mw of at least 7,000 to 80,000; c) a branching index (g′
) of from 0.4 to 0.90 measured at the Mz of the polymer composition; andd) a heat of fusion of 1 to 70 J/g. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification