Asphalt modifier composition and asphalt composition containing said modifier

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing an asphalt modifier composition, involving: obtaining a triblock copolymer via block copolymerisation of a vinyl aromatic hydrocarbon and a diene compound with conjugated double bonds as a result of anionic polymerisation using an organic anionic initiator in a reactor, having a hydrocarbon solvent, where the step of producing the block copolymer involves: formation of a vinyl aromatic block by feeding a vinyl aromatic hydrocarbon into a reactor, having a hydrocarbon solvent, and then feeding an organic anionic initiator; forming a diene block with conjugated double bonds, bonded to the end of the vinyl aromatic block, by feeding a diene compound with conjugated double bonds into the reactor; feeding a functional additive, selected from a group consisting of compounds of formula 1, into the reactor; and obtaining an asphalt modifier composition, including a block copolymer and a functional additive, by removing a hydrocarbon solvent, Formula 1 ; in formula 1, the sum n+m-m' is equal to 35, n is an integer from 1 to 5, each of m and m' is an integer equal to at least 1, and X is an ester group [-C(=O)O-]. The invention also relates to a method of producing the asphalt modifier composition and asphalt composition.

EFFECT: asphalt modifier composition dissolves fast in asphalt without significantly reducing softening temperature of asphalt, which enables to obtain a homogeneous asphalt composition and increase effectiveness of the asphalt composition.

17 cl, 1 tbl, 4 ex

 

The technical field to which the invention relates

The present invention relates to compositions modifier of asphalt and asphalt composition containing the modifier, and more particularly to a composition of asphalt modifier that has a high dissolution rate in the asphalt, and the asphalt composition containing the modifier.

The level of technology

The scope of asphalt used as a material for road surfacing and waterproofing, largely limited due to its cracking at low temperature, plastic deformation at high temperature and so on. Therefore, over a long period of time actively developing research and application of various asphalt modifiers to correct these deficiencies asphalt.

As a modifier of asphalt can be used in a variety of polymeric materials, such as a copolymer of olefin and acrylic compounds, statistical copolymer vinylaromatic hydrocarbon and a diene with conjugated double bonds, the block copolymer vinylaromatic hydrocarbon and a diene with conjugated double bonds, and so forth. Among others, the most widely used block-copolymer vinylaromatic hydrocarbon and a diene with conjugated double bonds, taktak it allows to significantly extend the operating temperature range and to increase the service life of the asphalt.

In the process of modification of asphalt is very important to dissolving and dispersing polymer materials in the asphalt. Typically, the dissolution rate modifier asphalt is low, and therefore it directly affects the performance of the process. In order to improve the performance of the process, you can increase the solubility modifier in asphalt by adjusting the molecular weight and molecular structure of polymeric material that degrades the final mechanical and physical properties.

Description of the invention

The present invention offers a solution to the problems of the prior art in this field.

Therefore, the present invention is to develop a composition of asphalt modifier, which allows to solve the problem related to the fact that the block copolymer vinylaromatic hydrocarbon and a diene compounds with conjugated double bonds, which is a modifier of asphalt to be added to extend the temperature range of use and increase the service life of the pavement, slowly soluble in asphalt, i.e. it has a low rate of dissolution of the block copolymer in asphalt; and development of the asphalt composition containing the modifier.

In addition, the present invention is to develop a method of obtaining it is notizie modifier asphalt.

The composition of the asphalt modifier according to the present invention includes a block copolymer, which is obtained by block copolymerization vinylaromatic hydrocarbon and a diene compounds with conjugated double bonds and a functional additive selected from the group consisting of compounds represented by formulas 1 and 2.

Formula 1

In formula 1, the sum n+m+m' is up to 35, preferably up to 25. Each of n, m, and m' is an integer equal to at least 1. X is a complex ester group [-C(=O)O-], a carbonyl group [-C(=O)-], a simple ester group [-O-], tigraphy [-S-], amino [-N(H)-], alkylaminocarbonyl [-N(R)], or phosphine group [-P(H)-].

Formula 2

In formula 2, the sum p+p' is up to 30, more preferably up to 20. Each of p and p' is an integer equal to at least 1. X is a complex ester group [-C(=O)O-], a carbonyl group [-C(=O)-], a simple ester group [-O-], tigraphy [-S-], amino [-N(H)-], alkylaminocarbonyl [-N(R)], or phosphine group [-P(H)-].

Preferably, in the composition of the asphalt modifier of the present invention was administered to the block copolymer in an amount of from 90 to 99.9 wt.% and introduced a functional additive in an amount of from 0.1 to 10 wt.%. In particular, the functional additive may be selected is from the group consisting of adipates connection and platogo compounds, and more specifically the functional additive may be selected from the group consisting of di(2-ethylhexyl)adipate, di(2-ethylhexyl)phthalate and diisodecylphthalate.

The present invention also provides a composition modifier of asphalt and asphalt composition containing the modifier asphalt.

The present invention also provides a method of obtaining the composition of the asphalt modifier. The method of obtaining the composition of the asphalt modifier according to the present invention includes obtaining a block copolymer by block-copolymerization vinylaromatic hydrocarbon and a diene compounds with conjugated double bonds in the anionic polymerization using an organic anionic initiator in the reactor containing hydrocarbon solvent; introducing a functional additive selected from the group consisting of compounds represented by formulas 1 and 2, the reactor; and a composition of asphalt modifier comprising a block copolymer and a functional additive, by removing the hydrocarbon solvent.

Formula 1

In formula 1, the sum n+m+m' is up to 35, preferably up to 25. Each of n, m, and m' is an integer equal to at least 1. X is a complex ester group [-C(=O)O-], arbonelli group [-C(=O)-], simple broadcasting group [-O-], tigraphy [-S-], amino [-N(H)-], alkylaminocarbonyl [-N(R)], or phosphine group [-P(H)-].

Formula 2

In formula 2, the sum p+p' is up to 30, preferably up to 20. Each of p and p' is an integer equal to at least 1. X is a complex ester group [-C(=O)O-], a carbonyl group [-C(=O)-], a simple ester group [-O-], tigraphy [-S-], amino [-N(H)-], alkylaminocarbonyl [-N(R)], or phosphine group [-P(H)-].

In the above description, obtaining the block copolymer may include forming vinylaromatic block by adding vinylaromatic hydrocarbon in a reactor comprising a hydrocarbon solvent, and then the introduction of organic anionic initiator; forming block diene with conjugated double bonds attached to the end of vinylaromatic block by adding the diene compounds with conjugated double bonds in the reactor; and forming vinylaromatic block attached to the end of the block diene with conjugated double bonds formed by adding vinylaromatic hydrocarbon in the reactor, or the formation of a linear triblock-copolymer by introducing into the reactor the reactant involved in the reaction combinations.

In addition, obtaining the block copolymer includes the formation of the W vinylaromatic block by adding vinylaromatic hydrocarbon in the reactor, comprising a hydrocarbon solvent and then introducing organic anionic initiator; forming block diene with conjugated double bonds attached to the end of the block diene with conjugated double bonds, by adding compounds with conjugated diene double bonds in the reactor; and forming triblock-copolymer in the form of a star by introducing into the reactor the reactant involved in the reaction combinations.

Hereinafter the present invention will be described in more detail.

The composition of the asphalt modifier according to the present invention includes a block copolymer, which is obtained by block copolymerization vinylaromatic hydrocarbon and a diene compounds with conjugated double bonds and a functional additive selected from the group consisting of compounds represented by formulas 1 and 2.

Formula 1

In formula 1, the sum n+m+m' is up to 35, preferably up to 25. Each of n, m, and m' is an integer equal to at least 1. X is a complex ester group [-C(=O)O-], a carbonyl group [-C(=O)-], a simple ester group [-O-], tigraphy [-S-], amino [-N(H)-], alkylaminocarbonyl [-N(R)], or phosphine group [-P(H)-].

Formula 2

In formula 2, the sum p+p' is up to 30, more preferably up to 20. Each of p and a ' is an integer equal to at least 1. X is a complex ester group [-C(=O)O-], a carbonyl group [-C(=O)-], a simple ester group [-O-], tigraphy [-S-], amino [-N(H)-], alkylaminocarbonyl [-N(R)], or phosphine group [-P(H)-].

Functional additive used in the present invention is administered for the correction of the defect block copolymer comprising vinylaromatic block and diene block with conjugated double bonds, which is used as a modifier of asphalt in the prior art in this field, namely a low dissolution rate in the asphalt. Functional additive has the advantage that the block copolymer is quickly dissolved in the asphalt and significantly decreases the softening temperature of the asphalt.

Factors affecting the rate of dissolution of the copolymer vinylaromatic hydrocarbon and a diene with conjugated double bonds in the asphalt may include temperature, shear rate, particle size and their distribution, the molecular structure of the polymer and so forth. Among other things, the present invention uses a functional additive having a solubility parameter similar to the solubility parameter of the copolymer vinylaromatic hydrocarbon and a diene with conjugated double bonds, to improve the dissolution rate by weakening the molecular structure of ACPs is of iMER, in particular styrene block.

If the functional additive is represented by the compounds represented by formulas 1 and 2, it will not impose virtually any restrictions. In particular, the functional additive may be selected from the group consisting of adipates connection and platogo compounds, and more specifically the functional additive may be selected from the group consisting of di(2-ethylhexyl)adipate, di(2-ethylhexyl)phthalate and diisodecylphthalate.

Meanwhile, the block copolymer used in the present invention, is a modifier of asphalt, which has already been used to extend the temperature range of use and increase the service life of asphalt in the prior art in this field. As for the modifier suitable for the present invention, these modifiers, the block copolymer includes vinylaromatic block having a molecular weight of from 5000 to 150000 g/mol, and the diene block with conjugated double bonds, having a molecular weight of from 8000 to 150000 g/mol, and preferably, the mass ratio vinylaromatic block to block diene with conjugated double bonds ranged from 5:95 to 50:50.

Preferably, vinylaromatic block, a block copolymer formed by using one or more compounds selected from the group consisting of styrene, m is telestial and mixtures thereof, and preferably, the diene block with conjugated double bonds of the block-copolymer formed using one or more compounds selected from the group consisting of butadiene, isoprene and mixtures thereof.

Preferably, the block copolymer was triblock copolymer where block diene with conjugated double bonds form between vinylaromatic blocks. As an example, triblock-copolymer, triblock-copolymer can be formed in such a way that vinylaromatic block, block diene with conjugated double bonds and vinylaromatic unit is connected to a linear one by one, and the triblock copolymer may have a star shape or a radial shape, which is formed by using a reagent that participates in the reaction combinations, such as Si (- diene block with conjugated double bonds, - vinylaromatic block)4. Preferably, the molecular weight of the triblock-copolymer ranged from 15,000 to 500,000.

Preferably, in the composition of the asphalt modifier of the present invention, the block copolymer was injected in an amount of from 90 to 99.9 wt.% and preferably, the functional additive is injected in an amount of from 0.1 to 10 wt.%. If you enter a too large number of functional additives that can deteriorate the physical properties of the main song, and if you enter a too small amount is in the functional additive, it is difficult to obtain the desired property.

The present invention provides a method of obtaining a composition of asphalt modifier. The method of obtaining the composition of the asphalt modifier according to the present invention includes obtaining a block copolymer by block-copolymerization vinylaromatic hydrocarbon and a diene compounds with conjugated double bonds in the anionic polymerization using an organic anionic initiator in the reactor containing hydrocarbon solvent; introducing a functional additive selected from the group consisting of compounds represented by formulas 1 and 2, the reactor; a composition of asphalt modifier comprising a block copolymer and a functional additive, by removing the hydrocarbon solvent.

Formula 1

In formula 1, the sum n+m+m' is up to 35, preferably up to 25. Each of n, m, and m' is an integer equal to at least 1. X is a complex ester group [-C(=O)O-], a carbonyl group [-C(=O)-], a simple ester group [-O-], tigraphy [-S-], amino [-N(H)-], alkylaminocarbonyl [-N(R)], or phosphine group [-P(H)-].

Formula 2

In formula 2, the sum p+p' is up to 30, more preferably up to 20. Each of p and p' is an integer equal to at least 1. X is a complex ester group [-C(=O)O-], a carbonyl group [-C(=O)-], a simple ester group [-O-], tigraphy [-S-], amino [-N(H)-], alkylaminocarbonyl [-N(R)], or phosphine group [-P(H)-].

In the above description, the receiving block copolymer may include forming vinylaromatic block by adding vinylaromatic hydrocarbon in a reactor comprising a hydrocarbon solvent, and then the introduction of organic anionic initiator; forming block diene with conjugated double bonds attached to the end of vinylaromatic block by adding the diene compounds with conjugated double bonds in the reactor; and forming vinylaromatic block attached to the end of the block diene with conjugated double bonds formed by adding a second vinylaromatic hydrocarbon in the reactor, with the formation in the linear block copolymer is a styrene-butadiene-styrene (SBS). In addition, there may be added an appropriate reagent that participates in the reaction mix, rather than adding a second vinylaromatic hydrocarbon, to form a linear triblock copolymer. In addition, obtaining the block copolymer may include forming vinylaromatic block by adding vinylaromatic hydrocarbon in the reactor, including the speaker of the hydrocarbon solvent, and then the introduction of organic anionic initiator; forming block diene with conjugated double bonds connected to the end vinylaromatic block, by adding to the reactor diene compounds with conjugated double bonds; and forming a block of the triblock-copolymer in the form of a star or in the form of rays, such as Si(diene with conjugated double bonds, vinylaromatic block)4and so on, by introducing into the reactor the reactant involved in the reaction combinations, such as silicon tetrachloride, and so on.

Anionic polymerization used in the present invention, performs the role of block polymerization so that the styrene block sequentially formed on the basis of n-Budilnik negative ions and negative ions are formed at the end of the styrene unit in the introduction vinylaromatic compounds, such as styrene in a hydrocarbon solvent, for example, n-hexane, heptane, and so forth, containing organic anionic initiator, such as n-utility, and so on. Thus, if the styrene compound is completely consumed, for the formation of butadiene unit of the styrene end block enter a diene compound with conjugated double bonds, such as butadiene. At this time, at the end of the butadiene block formed negative ionise butadiene compound is completely consumed, then introduce styrene connection, which allows to obtain the block copolymer is a styrene-butadiene-styrene. When anionic copolymerization at the end of the block is always negative ions are formed, resulting in a block can be extended. And finally, when the extension unit is supposed to be complete, negative ions existing at the end of the block must be removed by the introduction of compounds such as water, alcohol, and so forth.

Usually for anionic polymerization can be used organic anionic initiator and a hydrocarbon solvent, and their use does not impose any restrictions. Typically, these materials are well known in the field of technology, belongs to the present invention.

Essentially, the present invention receives a polymeric material that can be used as a modifier of asphalt and then entered and smashin with functional additive. Further, according to the present invention, to remove the solvent, and then receives the same granules of the composition of the asphalt modifier. Then, in the present invention using pellets modifier for mixing with asphalt, resulting in the modified asphalt having excellent physical properties.

The composition of the asphalt modifier of the present invention obtained by the method izobreteny is, in the end, used for mixing with asphalt. Preferably, in the composition of the asphalt ratio when mixing the composition modifier of asphalt and asphalt ranged from 1:99 to 15:85 by weight. When mixing the composition modifier of asphalt with asphalt, the asphalt temperature is usually from 150 to 240°. When the asphalt temperature is too low, it becomes difficult to mix, and when the temperature is too high, increase costs and, in addition, can change connections.

Mixing a block copolymer containing functional additive with the asphalt can be carried out as follows, by using a mixing device with a low shear rate, intended only for mixing, or by using a mixing device with a high shear rate, intended for simultaneous grinding and mixing.

500 g of asphalt is placed in a tank for mixing and incubated for five minutes at a temperature of 150° and the rotation speed of the stirrer at 400 rpm. Then the rotation speed of the stirrer was increased to 1000 rpm and then add the specific amount of the block copolymer (including functional additive). Then for three minutes, increase the temperature to 180°, and the speed of rotation is possible stirrer is reduced to 3000 rpm. The state of dispersion and particle size of the copolymer by dissolving the block copolymer in asphalt by mixing within a specified time control using a fluorescent microscope. When the particle size of a block copolymer dispersed in the asphalt reaches 1 μm or less, consider the time to complete dissolution. At this point measure the softening temperature.

As asphalt using asphalt brand AP-5, having a softening temperature of from 40 to 60°, the degree of permeability from 60 to 70, and the elongation at low temperatures 5 or less. The softening temperature of a mixture of asphalt/block copolymer was measured by the method of standard ASTM36. The ratio of mixing the mixture of the asphalt/block-copolymer can be controlled in the range from 0.1:to 99.9 to 20:80, preferably from 1:99 to 15:85.

Preferred embodiments of the invention

Further, the present invention will be described in more detail with reference to embodiments of. However, the next next version of the implementation is only an example implementation of the present invention and therefore should not be considered as limiting the scope of the present invention.

Example 1

A block copolymer was obtained as follows, using styrene and butadiene as monomer. In a reactor of 10 l, C is executed by nitrogen, introduced 4590 g of cyclohexane, which are solvent, and 264 g of styrene was added 0,672 g n-utility at 60°, resulting happened polymerization of styrene. Will polimerizuet styrene and then enter 587 g of butadiene, which is a monomer, which generate butadiene block on the end of a polymerized styrene block. Ends polymerization of butadiene, and then injected 0,388 g of silicon tetrachloride with which to carry out the reaction mix. After that, the polymerization reaction is stopped by introducing 0.5 g of water. In the solution polymerization add as additives 3.5 g IR1076 (Irganox 1076) and 7.5 g of TNPP, which are antioxidants and, finally add and dispersed 42 g of di(2-ethylhexyl)adipate, which is the functional additive, and then remove the solvent, resulting in the block copolymer. The molecular weight of the triblock-copolymer obtained as described above was 320000 g/mol. Mixing 18 g of the obtained block copolymer with 500 g of asphalt at a temperature of 180° and a speed of rotation of the agitator 3000 rpm. When the particle size of a block copolymer dispersed in the asphalt reaches 1 μm or less, according as the time of complete dissolution. The time recorded as the time of dissolution. Measure the temperature of the softened who I am at this point in time. The time of dissolution and softening temperature specified in the following table.

Example 2

Except for use as functional additives 26 g of di(2-ethylhexyl)adipate example 2 perform the same as the example 1. Measure the softening temperature, and the results are presented in the following table.

Example 3

Except for use as functional additives 42 g of di(2-ethylhexyl)phthalate example 3 carried out in the same way as example 1. Measure the softening temperature, and the results are presented in the following table.

Example 4

Except for use as functional additives 42 g diisodecylphthalate example 4 perform the same as the example 1. Measure the softening temperature, and the results are presented in the following table.

Comparative example 1

Except that does not impose a functional additive, comparative example 1 carried out in the same way as example 1. Measure the softening temperature and the results are presented in the following table.

Table 1
The time of dissolving the block copolymer and the softening temperature of the asphalt mixture
Example 1 Example 2Example 3Example 4Comparative example 1
The time of dissolution (h)2,02,32,83,03,5
Softening temperature (°C)59,0to 59.459,0to 59.660,1

As can be seen from table 1, in examples of the present invention significantly reduces the time of dissolution modifier in asphalt without significantly lowering the softening temperature of the asphalt in comparison with asphalt modifier in the prior art in this field, which does not include functional additives.

The composition of the asphalt modifier according to the present invention is quickly dissolved in the asphalt without significantly lowering the softening temperature of the asphalt, giving the opportunity to obtain a homogeneous composition of asphalt and improve the effectiveness of the composition of the asphalt.

1. The method of obtaining the composition of the asphalt modifier comprising: receiving triblock-copolymer by block-copolymerization vinylaromatic uglevodorov the a and diene compounds with conjugated double bonds in the anionic polymerization using an organic anionic initiator in the reactor, containing hydrocarbon solvent, where the stage of obtaining the block copolymer includes:
the formation vinylaromatic block by adding vinylaromatic hydrocarbon in a reactor comprising a hydrocarbon solvent, and then the introduction of organic anionic initiator;
the formation of the diene block with conjugated double bonds attached to the end of vinylaromatic block by adding the diene compounds with conjugated double bonds in the reactor;
the introduction of a functional additive selected from the group consisting of compounds represented by formula 1, in the reactor; and a composition of asphalt modifier comprising a block copolymer and a functional additive, by removing the hydrocarbon solvent,

in formula 1, the sum n+m+m' is up to 35, n is an integer from 1 to 5, each of m and m' is an integer equal to at least 1, and X is a complex ester group [-C(=O)O-].

2. The method of obtaining the composition of the asphalt modifier according to claim 1, where in formula 1, the sum n+m+m' is up to 25.

3. The method of obtaining the composition of the asphalt modifier according to claim 1 or 2, where the stage of obtaining the triblock-copolymer includes forming vinylaromatic block attached to the end of the block diene with conjugated double bonds, education is tion by adding vinylaromatic hydrocarbon in the reactor, or the formation of a linear triblock-copolymer by introducing into the reactor the reactant involved in the reaction combinations.

4. The method of obtaining the composition of the asphalt modifier according to claim 1 or 2, where the stage of obtaining the triblock-copolymer includes the formation of triblock-copolymer in the form of a star by introducing into the reactor the reactant involved in the reaction combinations.

5. The composition of the asphalt modifier obtained according to the method according to any one of claims 1 to 4, including:
the triblock copolymer, which is obtained by block copolymerization vinylaromatic hydrocarbon and a diene compounds with conjugated double bonds; and
functional additive selected from the group consisting of compounds represented by formula 1,

in formula 1, the sum n+m+m' is up to 35, n is an integer from 1 to 5, each of m and m' is an integer equal to at least 1, and X is a complex ester group [-C(=O)O-].

6. The composition of the asphalt modifier according to claim 5, where in the formula 1, the sum n+m+m' is up to 25.

7. The composition of the asphalt modifier according to claim 5 or 6, where the block copolymer is introduced in an amount of from 90 to 99.9 wt.%, and the functional additive is applied in an amount of from 0.1 to 10 wt.%.

8. The composition of the asphalt modifier according to claim 5 or 6, where the functional additive selected from the group consisting of adipate joint is.

9. The composition of the asphalt modifier according to claim 5 or 6, where the functional additive is a di(2-ethylhexyl)adipate.

10. The composition of the asphalt modifier according to claim 5 or 6, where the triblock-copolymer includes vinylaromatic block having a molecular weight of from 5000 to 150000 g/mol, and the diene block with conjugated double bonds, having a molecular weight of from 8000 to 150000 g/mol, and the mass ratio vinylaromatic block to block diene with conjugated double bonds is from 5:95 to 50:50.

11. The composition of the asphalt modifier according to claim 5 or 6, where vinylaromatic block triblock-copolymer formed from one or more compounds selected from the group consisting of styrene, methyl styrene and mixtures thereof; and the diene block with conjugated double bonds of the block-copolymer formed from one or more compounds selected from the group consisting of butadiene, isoprene and mixtures thereof.

12. The composition of the asphalt modifier according to claim 5 or 6, where the triblock copolymer is a triblock copolymer, in which the diene block with conjugated double bonds formed between vinylaromatic blocks.

13. The composition of the asphalt modifier indicated in paragraph 12, where the triblock copolymer has a linear shape, in which vinylaromatic block, block diene with conjugated double bonds and vinylaromatic block are integrated in order one after the other.

One modifier of asphalt on p.12, where triblock copolymer has a star shape Si (block diene with conjugated double bonds, vinylaromatic block)4.

15. The composition of the asphalt modifier according to item 12 or 13, where the molecular weight of the triblock-copolymer is from 15,000 to 500,000.

16. The asphalt composition comprising the composition of the asphalt modifier according to any one of pp.5-15 and asphalt.

17. The asphalt composition according to item 16, where the ratio of mixing of the composition modifier of asphalt and asphalt is from 1:99 to 15:85 by weight.



 

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4 tbl, 18 ex

FIELD: construction.

SUBSTANCE: method includes preparation of a mixture of bitumen, rubber granules and a plasticiser. The mixture composition additionally includes a maleic anhydride. The plasticiser is vegetable oil. Components in the composition are used at the following ratio, wt %: rubber granules - 12.0-15.0; plasticiser - 5.0-20.0; maleic anhydride - 0.3-0.5; bitumen - balance. In process of composition preparation the vegetable oil is placed into a mixer's reservoir and heated up to the temperature of 120°C. Then bitumen is added to it, preferably, in a melted state. After their mixing, rubber granules are added into the mixer. While mixing, the produced mix is heated up to the temperature of 170°C, which is maintained until the end of the composition preparation. The operation of mixture mixing with rubber granules is carried out for at least an hour. Then maleic anhydride is added to the mixture, and operation of produced mix mixing is carried out for another half an hour at least.

EFFECT: method provides for the possibility to produce a rubber modified bitumen with higher values of elasticity maintained under severe climatic conditions under increased mechanical loads.

4 cl, 1 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to road construction and repair, and can be used in making coating layers. The dense organomineeral mixture contains mineral material - granite macadam, grinding screenings, mineral powder, cement, basalt fibre and class 3 slow-decomposing cationic bitumen emulsion, which contains bitumen BND 90/130, cationic emulsifying agent KADEM-VT, stabilising additive OXYPAV-A.30, water, with the following ratio of components, wt %: mineral material 87.00 - 92.00, cement 1,50 - 2,35, basalt fibre 0.20 - 0.55, bitumen BND 90/130 3.40-5.50, cationic emulsifying agent KADEM-VT 0.40 - 0.50, stabilising additive OXYPAV-A.30 0.20 - 0.40, water 2.30 - 3.70.

EFFECT: high quality of road surfaces owing to improved strength characteristics at 20 and 50°C, and high water resistance.

1 ex, 8 tbl

FIELD: chemistry.

SUBSTANCE: polyester composition contains a polyester polymer, having repeating alkylene arylate links, aluminium atoms and catalytically active titanium atoms. The polyester polymer has characteristic viscosity of at least 0.72 dl/g and residual content of acetaldehyde in polymer particles of 10 ppm or less. Aluminium atoms are residues of an aluminium compound of formula: Al[OR]a[OR']b[OR"]c[R'"]d, where R, R', R" denote an alkyl, aryl, acyl group or hydrogen, and R'" is an anionic group. The method of producing polyester polymers involves adding phosphorus atoms to molten polyester containing aluminium atoms and additional atoms of an alkali-earth metal or atoms of an alkali metal or residues of alkaline compounds, and catalytically active titanium atoms. Phosphorus atoms are added to the molten polyester before or after meeting conditions a), b), c), d), e) and f), given in the claim, but before the molten polyester solidifies.

EFFECT: improved method.

35 cl, 10 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: peroxide-curable rubber compound contains a peroxide curing substance and a halobutyl ionomer with high content of multi-olefin. The halobutyl ionomer is obtained via polymerisation of a mixture of monomers containing 80-95 wt % isobutene monomer and 4-20 wt % isoprene monomer in the presence of AlCl3 and a source of protons and/or carbocationic compound or silyl cationic compound, capable of initiating polymerisation and 0.01-1.0 wt % multi-olefin cross-linking agent to obtain a butyl polymer with high content of multi-olefin, halogenation of the butyl polymer and reaction thereof with a phosphorus-based nucleophile.

EFFECT: invention enables to obtain a heat resistant peroxide-curable compound with a halobutyl ionomer with high content of multi-olefin and to obtain a moulded article from said compound without inorganic impurities.

13 cl, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: composition contains the following (wt %): epoxy diane resin ED-20 51.81-63.82, mineral filler 15.54-19.16, ethylene diaminomethylphenol amine hardener 8.81-10.85, isopropylbenzene hydroperoxide 0.26-1.04, NK-1 accelerator 0.70-2.07 and antipyrene - phosphorus-containing methacrylate 5.21-20.73 of formula:

, where: x=1.2.

EFFECT: invention improves technological effectiveness of the antipyrene pre-synthesis process, enables to obtain chemically resistant epoxy diane compositions with low flammability and good physical and mechanical properties.

2 tbl, 6 ex

FIELD: synthesis of phosphorus-containing derivatives of organic compounds.

SUBSTANCE: invention relates to method of preparing polyphosphates of organic compounds, to mixture of polyphosphates of organic nitrogenous bases, and to use of polyphosphates and mixture of polyphosphates as fire retardants for plastics, preferably thermoplastics and, more particularly, polyamides and polyesters. Polyphosphates of organic compounds are prepared via exchangeable decomposition of mixture of phosphorus pentoxide and at least one organic nitrogenous base with a compound releasing water when decomposed under reaction conditions, the latter compound being used in such molar proportion that water would release in amount corresponding to essentially two moles of water per one mole of phosphorus pentoxide. Water-releasing compound can be compound forming, along with water, only volatile decomposition products and this compound can be selected from group including anhydrous oxalic acid, oxalic acid dehydrate, and formic acid. Exchangeable decomposition reaction is conducted at 100 to 250°C. Mixture of polyphosphates of organic nitrogenous bases is characterized by following properties: when heated to 320°C it looses less than 2% of its mass; pH value of its 10% water suspension exceeds 5 at 25°C, preferably from 5.2 to 7.7 and, more preferably, from 5.8 to 7; its solubility in water is less than 0.1 g and preferably less than 0.01 g per 100 mL water.

EFFECT: expanded synthetic possibilities.

6 cl, 5 ex

FIELD: organic chemistry; chemical industry; other industries; production of the biocidal compositions and their application.

SUBSTANCE: the invention is pertaining to the synergistic biocidal compositions and to the compositions dissolving sulfides of metals. The biocidal composition or the composition dissolving the iron sulfide includes (i) THP-salt and (ii) the biopenetrant. The biopenetrant represents the polymer of the non-saturated carboxylic acid or the interpolymer of the non-saturated carboxylic acid with the vinyl-sulfonic acid. At that the end groups of the indicated polymer or the interpolymer are the groups of the vinyl-sulfonic acid (VPA) or vinyliden-1,1 of the diphosphin acid (VDPA), either the indicated polymer or the interpolymer contains such monomers inserted into the main chain of the macromolecule. The present composition synergistically increases the biocidal effectiveness of the THP-salt concerning both the planktonic (free-floating) and the motionless (affixed) bacteria, and also synergistically increases the effectiveness of THP-salt in dissolution of the scale of iron sulfide. The invention also describes the application of the indicated composition in the capacity of the biocide or for dissolution of the metal sulfide and the method of treatment of the water system infected or inclined to be Infected by the micro-organisms such as bacteria, fungi, or algae with usage of the indicated composition, and the method of treatment of the water system containing the metal sulfide scale or being in contact with the metal sulfide scale, with usage of the indicated composition.

EFFECT: the invention ensures, that the biocidal compositions synergistically increase the biocidal effectiveness of the THP-salt concerning the free-floating and motionless bacteria and the increased effectiveness of THP-salt in dissolution of the iron sulfide scale.

18 cl, 5 ex, 3 tbl

The invention relates to multi-functional modifiers used in tire and rubber industry for rubber compounds based on unsaturated rubbers

The invention relates to compositions of macromolecular compounds, in particular insulating compounds intended for impregnation of electrical electronic and electrical equipment (transformers, chokes, inductors, relays, etc. are operating in the temperature range from -60aboutC to +120aboutWith

FIELD: organic chemistry, rubber industry.

SUBSTANCE: invention relates to a vulcanizing composition comprising rubber vulcanized with sulfur, sulfuric vulcanizing agent, accelerating agent taken among a group comprising of non-thiazolsulfenamide accelerating agents and agent providing stabilization of hardness that comprises derivative of pyrimidine of the formula (I):

wherein X represents hydrogen atom (H), radical from R1 to R4, NR3R4, OR5, SR5, SO2R6, M, (SO3)zM (wherein M represents metal ion); n and z can be similar or different and = 1, 2 or 3 depending on the corresponding valence of X and M = 1, 2 or 3; radicals from R1 to R4 are similar or different and taken among the group comprising of H, halogen atom, -OH, -NH2, alkyl, cycloalkyl, aryl, alkylaryl, alkylaryl, aralkyl and each among substitutes has optionally additional functional groups taken among the group consisting of -NH2, -OH, substituted amino-group, substituted hydroxyl, halogen atom and carbonyl-containing group; R3 and R4 in the same link in common with nitrogen atom (N) can form a heterocyclic group; R5 can mean any radical from R1 to R4 formed by carbon-base heterocyclic group comprising at least one sulfur (S) or nitrogen (N) atom or both S and N; R6 is taken among any radical from R1 to R4, -OH, -OM, -OR5, -NH2, NR3R4. The corresponding amount of accelerating agent and hardness stabilizing agent is effective in order to not inhibit vulcanization and to stabilize hardness property of indicated rubber after vulcanization. The amount of accelerating agent in indicated composition is above about 0.6 part per 100 parts of rubber when indicated rubber represents butadiene styrene rubber (SBR), and at least 0.5 part per 100 parts of rubber when indicated rubber represents the natural rubber, and the amount of the hardness stabilizing agent is at least about 0.5 part per 100 parts of rubber. Also, invention involves a method for enhancing hardness stabilization of the composition comprising rubber vulcanized with sulfur by addition of above indicated accelerating agents and pyrimidine derivative to the composition.

EFFECT: valuable properties of compounds.

28 cl, 8 tbl, 4 ex

The invention relates to the rubber industry

The invention relates to the composition for a bulkhead of a thin display panel, representing a group of monitors for display, such as a panel plasma and LCD indicators

FIELD: chemistry.

SUBSTANCE: invention pertains to a particle comprising a composition containing a matrix and a peroxide or azo radical initiator, as well as rubber-coated products, tyres, tyre treads and belts containing particle-elastomer systems. The particle is selected from aramid, polyester, polyamide, cellulose fibre and glass fibre. The matrix is selected from an extruded polymer, wax or mixture thereof.

EFFECT: invention improved mechanical properties - modulus of elasticity, hardness and wear-resistance.

20 cl, 37 tbl, 7 ex

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