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Emulsion composition of modified polypropylene

An emulsified composition, polypropylene technology, applied in the field of modified polypropylene emulsified composition, can solve the problems of low solubility of organic solvents, adverse effects, polypropylene degradation performance, etc., and achieve the effect of high-efficiency emulsified composition and high-efficiency preparation

Inactive Publication Date: 2006-07-05
TONEN CHEM CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, even if the emulsification is carried out by this method, if the crystallinity of the modified polypropylene is high, the above-mentioned problems cannot be solved due to the low solubility to organic solvents.
In addition, there is a method of emulsifying crystalline modified polypropylene in a molten state, but since melting requires heating to a high temperature, there is a possibility that polypropylene may be deteriorated and its performance may be adversely affected
[0005] In addition, for polypropylene dispersed in water, a method of subjecting a modifier monomer to a radical reaction has also been proposed (see, for example, Patent Document 2), which produces a large amount of monomers of the modifier monomer in water, problem of inefficiency

Method used

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  • Emulsion composition of modified polypropylene
  • Emulsion composition of modified polypropylene
  • Emulsion composition of modified polypropylene

Examples

Experimental program
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preparation example Construction

[0029] 1. Preparation of polypropylene

[0030] In the present invention, the method of producing polypropylene as the base material of the above-mentioned modified polypropylene is not particularly limited as long as the racemate fraction [r] of the polypropylene falls within the range of 0.12 to 0.88. limit. Usually, metal complex catalysts in a homogeneous system are used to polymerize propylene in solvents such as benzene, toluene, xylene, butane, pentane, hexane, cyclohexane, heptane, ethylcyclohexane, THF, etc. while preparing.

[0031] As a metal complex catalyst in a homogeneous system, it is a catalyst formed by an organometallic compound and an organoaluminum compound, or a metal complex formed by an organic compound containing heteroatoms such as oxygen and nitrogen and a transition metal. For example, it can be listed

[0032] (i) catalysts formed from vanadium complexes and organoaluminum compounds;

[0033] (ii) A compound having a cyclodienyl group or a deriv...

Embodiment 1

[0196] Polymerization of propylene

[0197] Add 150 ml of toluene and 100 ml of 2 mol / l diethylaluminum chloride toluene solution to a stainless steel reaction kettle equipped with a stirrer fully replaced with nitrogen, and after feeding 8.3 mol of propylene, cool to -78° C. under stirring. Under the condition of maintaining at -78°C, 50 ml of a toluene solution of 0.1 mol / l tris(2-methyl-1,3-butanedione)vanadium was added to carry out polymerization. After 1.5 hours of polymerization, the stirring was stopped, and the reaction solution was poured into 2L of ethanol-hydrochloric acid solution cooled to -78°C. The produced polymer was washed five times with 1 L of ethanol, and dried under reduced pressure at room temperature to obtain 5.5 g of a polymer.

[0198] The obtained polymer was analyzed by GPC, and the weight average molecular weight (Mw) was 6000, and the value of Mw / Mn was 1.5. further through 13 The stereoregularity of the obtained polymer was analyzed by C-NMR...

Embodiment 2～7

[0205] In the same manner as in Example 1, propylene was polymerized under the conditions shown in Table 1, and various modifiers were introduced into polypropylene under the conditions shown in Table 3.

[0206] After completion of the modification, IR measurement was performed to quantify the amount of modifier introduced, and it was confirmed that no absorption due to crystalline polypropylene was observed. Further, the obtained modified polypropylene was emulsified in the same manner as in Example 1. Immediately after emulsification, the state of the emulsified product was observed, and the stability of the emulsified state was evaluated. The results are listed in Table 5.

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Abstract

An emulsion composition of a modified polypropylene. It can have exceedingly improved emulsion stability because the modified polypropylene used has extremely high solubility in solvents and is easily emulsifiable. The modified-polypropylene emulsion composition comprises water and a modified polypropylene dispersed and emulsified therein, and is characterized in that the modified polypropylene has a racemic diad content [r] of 0.12 to 0.88 and has hydrophilic functional groups in a number of 0.5 or larger on the average per molecular chain of the polypropylene.

Description

technical field [0001] The present invention relates to an emulsified composition of modified polypropylene, more specifically, to an emulsified composition of modified polypropylene in which emulsification stability is remarkably improved by using a modified polypropylene which has a very high solubility in a solvent and can be easily emulsified thing. Background technique [0002] In recent years, modified polypropylene is not only used as a coating, but also the application of surface modifiers, primers, coating agents, inks, adhesives, co-solvents and their intermediate raw materials is also under intense research. For this reason, it is necessary stable polymer solution. [0003] However, when preparing emulsions from polypropylene conventionally, due to high stereoregularity and low solubility in organic solvents, a low-concentration polymer solution had to be used in order to obtain stable emulsions. As a result, a large amount of solvent and the like must be distil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08L23/26C08L51/06C08F8/00C08F255/02C08F2/44
CPCC08F8/00C08F255/02C08F2438/00C08F8/44C08F8/12C08F220/286C08F220/34C08F222/102C08L23/26C08L23/12C08F220/06C08F220/20C08F220/56C08F220/44C08F222/02C08F212/08C08F218/08
Inventor 尾崎裕之堀井政利西田光宏若林秀哲今西邦彦植木聪铃木贞胜
Owner TONEN CHEM CORP
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