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Method for producing polyolefins comprising syndiotactic structural elements, polyolefins and use thereof

A technology for polyolefins and olefin monomers, which is applied to the preparation of polyolefins with syndiotactic structural units, the fields of polyolefins and their uses, and can solve problems such as being unsuitable for hot melt adhesive applications.

Inactive Publication Date: 2009-10-21
EVONIK DEGUSSA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But higher crystallinity polymers are especially unsuitable for hot melt adhesive applications (see above)

Method used

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  • Method for producing polyolefins comprising syndiotactic structural elements, polyolefins and use thereof
  • Method for producing polyolefins comprising syndiotactic structural elements, polyolefins and use thereof
  • Method for producing polyolefins comprising syndiotactic structural elements, polyolefins and use thereof

Examples

Experimental program
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Effect test

Embodiment 12

[0314] 44.3 parts by weight of the polyolefin according to Example 12 of the present invention

[0315] 5 parts by weight of DBTL-masterbatch (98% by mass 708 (Evonik DegussaGmbH company), 2% by mass dibutyltin dilaurate)

[0316] 5 parts by weight of low-viscosity polybutadiene oil (e.g. 110)

[0317] 5 parts by weight of glass fiber (e.g. Owen Corning CS429YZ)

[0318] 0.5 parts by weight of carbon black (e.g. printex 60)

[0319] 0.2 parts by weight of IRGANOX 1076 (octadecyl-3,5-di-(tert-butyl)-4-carboxyhydrocinnamate, Ciba company)

[0320] Hot melt adhesive for sanitary products

[0321] 60 parts by weight of the polyolefin according to Example 16 of the present invention

[0322] 20 parts by weight of hydrocarbon resin (e.g. ESCOREEZ 5300, ExxonMobil Chemical Company)

[0323] 19.7 parts by weight of microcrystalline wax (e.g. MULTIWAX 180HM)

[0324] 0.3 parts by weight of polymer stabilizer (for example, IRGANOX 1010, Ciba company)

[0325] Multiline-Hot Melt Adhesive

...

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Abstract

The invention relates to method for producing polyolefins comprising syndiotactic structural elements, polyolefins and use thereof. The invention also relates to method for producing polyolefins, polyolefins and use thereof, in particular as adhesives and as adhesive ingredients. More concretely, the method for producing polyolefins is indicated as taking metallocene compounds, at least one kind of first solvent, at least a methylalumoxane composition modified by alkyl group dissolved or suspended in second dissolvant according to the needs, and at least a 1-olefin hydrocarbon monomer contacting in the catalyst case and taking the said at least 1-olefin hydrocarbon monomer with polymerization reaction at the reaction temperature, generating polyolefin, wherein the said at least first dissolvant is non-halogenated aliphatic dissolvant, the said second dissolvant can be the same as the the first dissolvant or different, and the reaction temperature is higher than the boiling point of the said dissolvant or the said first dissolvant.

Description

Technical field [0001] The invention relates to a method for preparing polyolefin having syndiotactic structural units, polyolefin and its use, especially as an adhesive or as a component of an adhesive. Background technique [0002] The use of metallocene compounds as catalysts in the polymerization of olefins has long been known. Kaminsky et al. have demonstrated that cyclopentadienyl zirconium dichloride / methylaluminoxane (Cp 2 ZrCl 2 / MAO) catalyst system is very suitable for polymerization reaction (Adv. Organomet. Chem. 1980, 18, 99-149). The MAO or methylaluminoxane (partial hydrolysis product of trimethylaluminum) used acts as a cocatalyst in this reaction. Since then, the combination of metallocene compounds and MAO has been widely used in the polymerization process. There are many published patents, such as US 5,476,914, EP 351 391, EP 351 392, EP 426 63, EP 433 987, EP 422 498, US 6,255,425, EP 480 390, EP 459 264, EP 516 018, US 5,459,117, EP 666 267, DE 19 707 034, W...

Claims

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Application Information

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IPC IPC(8): C08F10/00C08F210/16C08F210/02C08F210/06C08F4/6592C09J123/00C09D123/00
CPCC08F210/06C08F210/16C08F110/06C08F10/00C08F4/65927C08F2/06C08F2500/15C08F2500/16C08F2500/20C08F2500/17C08F2500/11C08F2500/24C08F210/08C08F2500/36
Inventor H·G·贝克尔W·卡明斯基M·霍夫L·明达奇T·怀尔特J·德克斯
Owner EVONIK DEGUSSA GMBH
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