Polyolefin adhesive compositions and articles made therefrom

A technology of adhesives and polymers, applied in the direction of adhesives, etc.

Inactive Publication Date: 2006-08-16
EXXONMOBIL CHEM PAT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This problem is usually solved with reactor blends also known as intimate blends (compositions comprising two or more polymers produced in the same reactor or in a series of reactors), but finding ways to operate in the same environment Catalyst systems to generate different polymers a challenge

Method used

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  • Polyolefin adhesive compositions and articles made therefrom
  • Polyolefin adhesive compositions and articles made therefrom
  • Polyolefin adhesive compositions and articles made therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[1278] With racemic-dimethyl·dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium and dimethyl·dimethylsilyl(tetramethylcyclopentadiene base) (cyclododecylamino)titanium was prepared at a temperature of 115°C in a range of catalyst ratios to prepare 4 samples. Polymerization was carried out according to the general procedure described above. The detailed experimental conditions and results are given in Table 1.

[1279] Table 1

Embodiment 5-8

[1281] With racemic-dimethyl·dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium and dimethyl·dimethylsilyl(tetramethylcyclopentadiene base) (tert-butylamino) titanium at a temperature of 100 ° C in the range of catalyst ratio to prepare 4 samples. Polymerization was carried out according to the general procedure described above. The detailed experimental conditions and results are given in Table 2.

[1282] Table 2

Embodiment 9-15

[1284] Using dimethyl dimethylsilyl bis(indenyl) hafnium and dimethyl dimethylsilyl (tetramethylcyclopentadienyl) (cyclododecylamino) titanium in Seven samples were prepared in a certain temperature range with a catalyst ratio of about 80.0mol%. Polymerization was carried out according to the general procedure described above. The detailed experimental conditions and results are given in Table 3. These data show that temperature has a significant effect on crystallinity, Mw, Mw / Mn and amount of branching. The total amount can be controlled by the reaction temperature, since the reaction kinetics of each catalyst responds uniquely to the polymerization temperature.

[1285] table 3

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Abstract

Particular embodiments of the present invention are directed to articles comprising polymers comprising one or more C3-40 olefins, optionally one or more dienes, and less than 5 mole percent ethylene, which dot T-peel The force is 1 Newton or higher, the branching index (g') measured at the Mz of the polymer is 0.95 or lower, and the Mw is 100,000 or lower. The present invention also relates to a method for producing an olefin polymer, comprising: 1) selecting a first catalyst component capable of producing a polymer having a Mw of 100,000 or less and a crystallinity of 20% or less; 2) selecting the a second catalyst component that produces a polymer having a Mw of 100,000 or less and a crystallinity of 40% or more; and 3) combining said catalyst component with one or more activators in the presence of one or more activators C3-40 olefins are contacted in the reaction zone.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to provisional application USSN 60 / 418,482, filed October 15,2002, entitled "Multicomponent Catalyst Systems for Olefin Polymerization and Polymers Produced Therefrom." This application also claims priority to USSN 60 / 460,714, filed April 4, 2003, entitled "Polyolefin Adhesive Compositions and Articles Made Therefrom." [0003] This application is also related to USSN 60 / 199,093 filed April 21, 2000 and US2000000199093P filed April 20, 2001 claiming priority from USSN 60 / 199,093. This application is also related to USSN 60 / 171,715, filed December 21, 1999; USSN 09 / 745,394, filed December 21, 2000; and USSN 09 / 746,332, filed December 21,2000. This application also relates to WO 01 / 81493. field of invention [0004] The present invention relates to the inclusion of C 3-40 Adhesives for olefinic polymers having a Dot T-Peel of 1 Newton or more; branching index measured at the z-average mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F210/06C08F4/642C09J123/10
Inventor 江培军K·A·纳尔森C·L·柯里A·德克梅齐安J·A·M·卡尼奇C·L·西姆斯R·阿巴里C·A·加西亚-佛朗哥N·纳蓬斯M·L·费塞特L·E·雅各布
Owner EXXONMOBIL CHEM PAT INC
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