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Oil extended 1,2-polybutadiene and method of manufacturing polybutadiene, and composition and formed product thereof

A technology of polybutadiene and composition, applied in the field of new oil-extended 1, which can solve problems such as insufficient fluidity, long manufacturing time, and insufficient drug dispersion

Inactive Publication Date: 2004-07-07
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of masterbatch has insufficient fluidity, and the dispersibility of various drugs is not yet sufficient.
In addition, it is difficult to disperse a large amount of drugs in the masterbatch, and the technology for manufacturing the masterbatch is required, and there is a problem that it takes a long time to manufacture

Method used

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  • Oil extended 1,2-polybutadiene and method of manufacturing polybutadiene, and composition and formed product thereof
  • Oil extended 1,2-polybutadiene and method of manufacturing polybutadiene, and composition and formed product thereof
  • Oil extended 1,2-polybutadiene and method of manufacturing polybutadiene, and composition and formed product thereof

Examples

Experimental program
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Embodiment

[0230] Hereinafter, specific embodiments according to the present invention will be described.

[0231] The present invention is not limited to the following embodiments. It is possible to change arbitrarily without departing from the scope of the present invention. In addition, various measurements in the examples are based on the following methods, and "parts" means "parts by weight" unless otherwise specified.

[0232] The various determinations in the examples follow the following methods:

[0233] (1) 1,2-vinyl binding capacity

[0234] It is determined by infrared absorption spectroscopy (Morello method).

[0235] (2) Weight average molecular weight (Mw)

[0236] A gel permeation chromatograph (GPC) (Model 244 manufactured by Kota-Soo) was used. Mw is calculated in terms of polystyrene.

[0237] (3) Wear resistance

[0238] For Examples 1-5 and Comparative Example 1, the DIN abrasion amount (mm 3 ).

[0239] For Examples 21-27 and Comparative Examples 20-26, the mold tempera...

Embodiment 28-30

[0240] For Examples 28-30 and Comparative Examples 27-29, the Akulun abrasion method was used, and the abrasion measurement was carried out under the following conditions using an Akulun abrasion rotary machine.

[0241] Solid evaluation: 6Lbs, angle of 15 degrees, 1,000 times

[0242] Sponge evaluation: 2Lbs, angle of 15 degrees, 2,000 times

[0243] The abrasion resistance evaluation criteria of the Akulon abrasion method are as follows.

[0244] Solid evaluation (CC / 1,000 times): ⊚: less than 0.3, ◯: 0.3-0.49, △: 0.5-0.69, ×: 0.7 or more.

[0245] Sponge evaluation (CC / 2,000 times): ⊚: less than 0.4, ◯: 0.4-0.49, △: 0.5-0.69, ×: 0.7 or more.

[0246] (4) Melt flow rate (MFR) (processability)

[0247] It is implemented at a measurement temperature of 150°C in accordance with ASTM D 1238. The unit is g / 10 minutes. In terms of load, Examples 1-5 and Comparative Example 1 are 2.16 kg, Examples 12, 13, and Comparative Examples 5 and 6 are 5 kg, and Examples 16-18, 21-42, and Compara...

reference example 1

[0387] Reference example 1 (modulation of (a-1))

[0388] In a vertical reactor equipped with a stirrer with an internal volume of 20 L, 8,000 g of a cyclohexane / n-heptane (weight ratio 80:20) mixed solvent and 1,600 g of 1,3-butadiene were added, and the formazan was added with a syringe. Aluminoxane in toluene solution 6.58g (based on 1,3-butadiene / Al molar ratio, = 1,350), bis[tris(4-methylphenyl)phosphine]cobalt dichloride in dichloromethane 1.50g (1,3-butadiene / Co molar ratio, =180,000), the polymerization temperature was 45°C, and the polymerization started. After 120 minutes of reaction, the polymerization reaction was stopped by injecting a small amount of ethanol containing 2,6-di-tert-butyl-p-cresol as a reaction terminator. The yield of the obtained polymer (a-1) was 90% (polymer weight 1.44 kg), the Mw of the polymer (a-1) was about 400,000, and the 1,2-vinyl bond content was 93%.

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Abstract

Disclosed are oil-extended 1,2-polybutadiene containing an extender oil in a specific amount based on 1, 2-polybutadiene and a production method thereof, and a composition further containing another (co)polymer, a foaming agent, a crosslinking agent, a softening agent and other additives. The resulting oil-extended 1,2-polybutadiene and the composition thereof has excellent functions characterizing conventional 1,2-polybutadiene and is further excellent in wear resistance, fluidity (processability), coloring properties (high distinctness of images), flexibility, attachability and the like, so that they can be applied to various formed articles, shoe sole materials and laminate having high performances.

Description

Technical field [0001] The present invention relates to a new type of charger that has good functions that are the characteristics of existing 1,2-polybutadiene and has good abrasion resistance, fluidity (processability), colorability (high vividness), flexibility, and shape tracking. Oil 1,2-polybutadiene and its preparation method, as well as its composition and molded products without flow lines and good appearance. In more detail, it relates to various molded products used as automobile parts, building materials parts, shoes, toys and sundries, sports and fitness products, or various sheets, films, other industrial products, cushioning materials, and packaging materials. Oil 1,2-polybutadiene and its preparation method, as well as its composition and molded products, the sole material with good flexibility, abrasion resistance and light weight, can be uniformly laminated and reduced for base layers with complex shapes. A laminated body with good vibration properties, vibration...

Claims

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Application Information

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IPC IPC(8): B32B27/18C08F6/06C08J3/18C08J3/21C08K5/01
CPCC08K5/01C08L9/00A43B21/06B32B25/16C08J9/00
Inventor 前田征希神品顺二森野克昭青山彰夫冈田公二古市稔
Owner JSR CORPORATIOON
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