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Butene-based polymer, resin composition, and molded body

A technology for polymers and moldings, which is applied in the direction of synthetic resin layered products, tubular articles, and other household appliances. It can solve problems such as crystallization transition behavior that has not yet been clarified, and achieve short crystallization transition time, heat resistance, and high temperature creep resistance. Excellent deformation properties and excellent creep resistance

Active Publication Date: 2021-06-11
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] On the other hand, Patent Document 4 discloses a 1-butene polymer with high stereoregularity, but its crystallization transition behavior has not been clarified yet.

Method used

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  • Butene-based polymer, resin composition, and molded body
  • Butene-based polymer, resin composition, and molded body
  • Butene-based polymer, resin composition, and molded body

Examples

Experimental program
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Embodiment

[0317] Although the present invention is described in detail based on examples, the present invention is not limited to these examples.

[0318] [Synthesis of transition metal complex]

manufacture example 1

[0320] According to Synthesis Example 4 of International Publication No. 2014 / 050817, (8-octamethylfluoren-12'-yl-(2-(adamantan-1-yl)-8-methyl-3,3b,4 ,5,6,7,7a,8-Octahydrocyclopentadien[a]indene)) zirconium dichloride. This compound is also described as "catalyst (a)".

manufacture example 3

[0324] According to Journal of Organometallic Chem.288 (1985), pages 63-37, European Patent Application Publication No. 0320762 specification and examples, synthesized dimethylsilylene-bis{1-(2-n-propyl- 4-phenanthrenylindenyl)} zirconium dichloride. This compound is also described as "catalyst (c)".

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Abstract

An object of the present invention is to provide a butene-based polymer having a short crystal transition time and excellent creep resistance. The solution of the present invention is to provide the following butene-based polymers: the 1-butene unit amount is 80.0 to 99.9 mole %, selected from ethylene and α-olefins other than 1-butene with 3 to 20 carbon atoms The total content (K) of at least one olefin unit is 0.1-20.0 mol% (the sum of the 1-butene unit and the total content (K) is 100 mol%), and the conditions (i)-(iv) are met. (i) by 13 The mmmm measured by C-NMR is not less than 94.0% and not more than 99.9%. (ii) by 13 The rr measured by C-NMR is 1.5% or less. (iii) The intrinsic viscosity [η] in a decahydronaphthalene solvent at 135°C is 0.5 to 5.5 dl / g. (iv) The ratio of the component whose molecular weight is 10000 or less as measured by GPC is less than 1.3 mass %.

Description

technical field [0001] The present invention relates to a butene-based polymer having a specific composition and specific characteristics, a resin composition containing the above-mentioned butene-based polymer, and a molded article formed from the above-mentioned butene-based polymer or resin composition. Background technique [0002] Pipes, pipe fittings, and boxes made of butene-based polymers are excellent in creep resistance, environmental stress crack resistance, flexibility, toughness, heat resistance, high-temperature and low-temperature characteristics, and wear resistance, so they are used as Used in various components such as hot and cold water supply, floor heating, hot spring pipelines, chemical distribution and drainage. [0003] It is known that butene-based polymers mainly have two crystal forms. When the butene-based polymer is cooled from the molten state and shaped into a molded body, a quasi-stable type II crystal structure (tetragonal transformation) is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F210/08C08L23/20
CPCC08F210/08C08L23/20B32B1/08C08F4/65912B32B2250/24B32B2307/54B32B2597/00B32B27/32B32B2307/732B32B27/08C08F2420/09C08F4/65927C08F210/06C08F2500/01C08F2500/03C08F2500/15C08F2500/17C08F2500/20C08F2500/27C08F210/16F16L9/12C08F2500/24C08L2203/18
Inventor 渡边真弓冈本胜彦山下正洋惠比泽郁子三田一树
Owner MITSUI CHEM INC
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