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Olefinic copolymer and process for preparing same

A technology of copolymers and olefins, applied in the field of olefin-based copolymers and their preparation, can solve problems such as difficulty in obtaining excellent strength and low strength

Active Publication Date: 2019-03-01
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since these low-density olefin-based elastomers exhibit relatively low strength, they have disadvantages in that, for example, it is difficult to obtain excellent strength of the entire molded article

Method used

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  • Olefinic copolymer and process for preparing same
  • Olefinic copolymer and process for preparing same
  • Olefinic copolymer and process for preparing same

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Embodiment Construction

[0034] Hereinafter, an olefin-based copolymer and a preparation method thereof according to an embodiment of the present invention will be described in more detail. However, it is obvious to those skilled in the art that this is given as an example of the present invention, the scope of the present invention is not limited thereto, and these embodiments can be modified without departing from the scope of the present invention. Various modifications.

[0035] The term "short chain branch (SCB)" in the term "olefin-based copolymer" or "(polymer) fraction" contained therein may refer to each branch contained in the olefin-based copolymer or its fraction Short chain branching from the longest backbone in a polymer chain. The number of short chain branches can be calculated by analyzing the "olefin-based copolymer" or "fraction" thereof via cross-fractionation chromatography (CFC), and can be compared with the "olefin-based copolymer" or each polymer chain The content of the α-ol...

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Abstract

The present invention relates to an olefinic copolymer having novel crystal properties and enabling the provision of a molded article with further improved strength and impact strength when compoundedwith other resins, and a process for preparing the same. The olefinic copolymer is an olefinic copolymer comprising an ethylene repeating unit and an [alpha]-olefinic repeating unit. The olefinic copolymer comprises polymer fractions defined by three different peaks at a predetermined temperature when analyzed by cross-fractionation chromatography.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2016-0122446 filed with the Korean Intellectual Property Office on September 23, 2016, the disclosure of which is incorporated herein by reference in its entirety. [0003] The present invention relates to an olefin-based copolymer having novel crystalline properties and capable of providing shaped articles having further improved strength and impact strength when blended with other resins, and a method for producing the same. Background technique [0004] In the early 1990s, the Dow Chemical Company disclosed in U.S. Patent No. 5,064,802 [Me 2 Si(Me 4 C 5 )NtBu]TiCl 2 (Constrained Geometry Catalyst, hereinafter abbreviated as CGC), and, compared with existing metallocene catalysts known in the prior art, the superiority of CGC in the copolymerization of ethylene and α-olefins can be roughly summarized as follows Tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F210/02C08F210/14C08L23/08C08F4/64C08F4/642C08F4/646C08F2/38
CPCC08F210/16C08F2420/02C08F4/659C08F4/6592C08F4/64062C08F4/65904C08F210/14C08F2500/03C08F2500/08C08F2500/10C08F2500/12C08F2500/34C08F2500/37C08F210/02C08L23/08C08F4/64C08F4/642C08F4/646C08F2/38C08F2500/01C08F4/65922
Inventor 金瑟箕李银精李忠勳韩基元张在权韩晓晶朴仁成
Owner LG CHEM LTD
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