JP2010215722A - Elastomer composition and tire using the elastomer composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elastomer composition capable of being manufactured at low environment load and at low cost without using a complicated manufacturing step and having performance equal to an elastomer composition in which a substitution material is not formulated, and a tire using the rubber composition. <P>SOLUTION: In the elastomer composition, a residue generated in fermentation treatment of an organic substance is formulated relative to an elastomer component, and the maximum particle diameter of the residue is 600 μm or less. Alternatively, in the elastomer composition, the residue contains a residue having a particle diameter of 90 μm or more at a ratio of 80 mass% or less. Further, in the tire, the elastomer composition is used for at least a part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elastomer composition in which the amount of the elastomer component used is reduced and a tire using the elastomer composition.

  An elastomer composition such as a rubber composition used for a tire or the like contains a large amount of an elastomer component (such as rubber) as a raw material. For example, in the case of a pneumatic tire for a passenger car using the rubber composition, 50 mass of the rubber composition. % Or more is composed of a rubber component containing natural rubber and synthetic rubber. Therefore, these rubber compositions and tires using the rubber compositions are affected by rising crude oil prices, rubber failure due to bad weather, etc., resulting in increased raw material costs and a difficult supply of stable products. There is a risk of becoming.

Moreover, in recent years, environmental problems tend to be emphasized globally. In particular, from the viewpoint of preventing global warming, regulations on CO ₂ emissions have been strengthened, and reductions in the use of petroleum resources have been demanded. The formation of a resource recycling society is required.

  Therefore, in order to reduce the amount of petroleum resources used when manufacturing tires, for example, Patent Document 1 describes a so-called eco-tire in which 75% by weight or more of the total weight is made of raw materials made of resources other than petroleum.

JP 2003-63206 A

  However, in the rubber composition and tire according to the above-mentioned conventional technology, although the amount of petroleum resources used can be reduced, the manufacturing process becomes complicated and the unit price of alternative raw materials for petroleum resources is high, so the manufacturing cost is not necessarily reduced. could not.

  In addition, there is room for improvement and selection of alternative raw materials from the viewpoint of high processing energy required for use (for example, energy required for crushing alternative raw materials) and high availability of alternative raw materials as fuel and resources. was there.

  Therefore, it is an alternative material that requires less processing energy when used and has low applicability as fuel, resources, etc., and greatly reduces the physical properties of the elastomer composition even when blended instead of rubber. There has been a demand for an elastomer composition that can be produced at a low cost, in which a composition that does not have the above is blended.

  The present invention aims to advantageously solve the above-mentioned problems, and the elastomer composition of the present invention is an elastomer composition in which a residue generated in a fermentation treatment of an organic substance is blended with an elastomer component, The maximum particle size of the residue is 600 μm or less, preferably 300 μm or less, more preferably 150 μm or less. Thus, if the residue which remains after utilizing resources, such as the residue produced in the fermentation process of organic substance, is mix | blended, the usage-amount of the elastomer component in an elastomer composition can be reduced. Moreover, since the residue produced in the fermentation process of organic matter is an inexpensive residue, it is suitable as an alternative raw material. Therefore, an elastomer composition with low cost and low environmental load can be provided by blending the residue into the elastomer composition. Furthermore, the residue after fermentation treatment has an advantage that it is easy to handle because most of the rot factors such as proteins and lipids are decomposed during the fermentation treatment. In addition, if the maximum particle size of the blended residue is 600 μm or less, the residue is easily dispersed uniformly in the elastomer composition, so that the physical properties of the elastomer composition (for example, crack growth property) do not blend with alternative materials. There is no significant deterioration as compared with the elastomer composition. From the viewpoint of not uniformly dispersing in the elastomer component and reducing the physical properties of the elastomer composition, it is preferable that the maximum particle size of the residue blended in the elastomer component is small. Here, the maximum particle size refers to the particle size of the residue having the largest particle size among the blended residues. In addition, fermentation of organic matter means that organic matter is decomposed by the action of microorganisms, and includes both anaerobic fermentation and aerobic fermentation, and also includes the decomposition of carbohydrates and the like.

  Further, the elastomer composition of the present invention is an elastomer composition in which a residue generated in an organic fermentation process is blended with an elastomer component, and the residue is a residue having a particle size of 90 μm or more, preferably 80% by mass or less. 50% by mass or less, more preferably 25% by mass or less, and particularly preferably 10% by mass or less. Thus, if the residue which remains after utilizing resources, such as the residue which arises in the fermentation process of organic substance, is mix | blended, the usage-amount of the elastomer component in an elastomer composition can be reduced. Moreover, since the residue produced in the fermentation process of organic matter is an inexpensive residue, it is suitable as an alternative raw material. Therefore, an elastomer composition that is inexpensive and has a low environmental load can be provided by blending the residue into the elastomer composition. Furthermore, the residue after fermentation treatment has an advantage that it is easy to handle because most of the rot factors such as proteins and lipids are decomposed during the fermentation treatment. In addition, if the proportion of the residue having a particle size of 90 μm or more contained in the residue to be blended is 80% by mass or less, the residue is easily dispersed uniformly in the composition, so that the physical properties of the elastomer composition (for example, , Crack growth, etc.) does not deteriorate significantly compared to an elastomer composition that does not contain an alternative material. From the viewpoint of not uniformly dispersing in the elastomer component and lowering the physical properties of the elastomer composition, the ratio of the residue having a particle size of 90 μm or more in the residue to be blended in the elastomer component is preferably low.

  Here, in the elastomer composition of the present invention, the organic substance is preferably biomass. This is because the use of biomass, which is an organic resource derived from renewable organisms, can further reduce the environmental load during the production of the elastomer composition.

  In the elastomer composition of the present invention, it is preferable that the fermentation treatment is an organic matter fermentation treatment using a fermenting bacterium, and the residue contains a cell wall of the fermentation bacterium. Residues such as excess sludge generated during fermentation of organic matter using fermentative bacteria are low-use wastes that are present in large quantities and are inexpensive, and require complex processes and large processing energy when blending It is because it does not.

  In the elastomer composition of the present invention, the main component of the residue is preferably peptidoglycan. This is because peptidoglycan is a substance that has little influence on the elastomer composition when blended with the elastomer component. Here, the main component of the residue refers to a main component constituting the residue, for example, a component constituting 50% by mass or more of the residue.

  The elastomer composition of the present invention is preferably blended with the elastomer component after the residue is smoked or carbonized. Here, the soot treatment means that the residue is smoked with smoke generated when wood is heated. By performing the soot treatment, the residue can be blended with the elastomer component in a state where desulfurization (deodorization) and sterilized handling are easy. Carbonization means carbonization of the residue at a temperature of about 800 ° C. using a charcoal furnace.

  Further, in the elastomer composition of the present invention, the organic substance is an organic substance containing at least one of a plant cell wall and a short fiber connected with the plant cell wall, and the residue comprises at least one of the plant cell wall and the short fiber. It is preferable to contain. In the present specification, those having an aspect ratio of 1 to 5 are referred to as particles, and those having an aspect ratio of 6 to 50 are referred to as short fibers.

  In the elastomer composition of the present invention, the residue is preferably composed of at least one of cellulose particles and hemicellulose particles which are main components of the cell wall of the plant. This is because cellulose particles and hemicellulose particles are suitable for alternative materials in that they have good dispersibility and do not adversely affect the performance of the elastomer composition. Further, if at least one of cellulose particles and hemicellulose particles is blended into the elastomer composition alone, the cellulose particles and hemicellulose particles work as micro drainage grooves. Therefore, if an elastomer composition containing at least one of cellulose particles and hemicellulose particles is used in, for example, a studless tire, the performance (such as performance on ice) of the studless tire can be improved.

  Here, the particle size of the cellulose particles and hemicellulose particles is preferably 0.02 μm to 600 μm. When the particle size is less than 0.02 μm, it is difficult to handle, and when the particle size is larger than 600 μm, the dispersibility in the elastomer component is poor. Moreover, when the said cellulose particle and hemicellulose particle aggregate and it is a lump, it is preferable that the diameter of this lump is 0.5 micrometer-2 mm from a handleability and a dispersible viewpoint.

  In the elastomer composition of the present invention, the residue is preferably composed of the short fibers, and the short fibers are preferably composed of at least one of cellulose short fibers and hemicellulose short fibers. Cellulose or hemicellulose short fibers are also suitable as an alternative material because they can also function as fiber reinforcements in elastomer compositions.

  Here, the diameter of the short fiber is preferably 1 μm to 150 μm, and the length of the short fiber is preferably 0.3 mm to 2 mm. This is because the dispersibility is poor when the diameter is large and the length is long, and the reinforcing effect is low when the diameter is small and the length is short. Furthermore, it is preferable that 2 to 10 short fibers are assembled into a bundle. This is because the reinforcing effect is increased by forming a bundle, but if the number of aggregated fibers is too large, the dispersibility is deteriorated.

  In the elastomer composition of the present invention, the residue preferably includes at least one of cellulose particles and hemicellulose particles, which are main components of the plant cell walls, and short fibers in which the plant cell walls are connected. This is because when both the particles and the short fibers are included, the particles are attached to the short fibers, and the accompanying particles cause fine irregularities on the surface of the short fibers and the like, thereby strengthening the physical adhesion with the elastomer component.

  In the elastomer composition of the present invention, the fermentation treatment is a treatment using at least one of Aspergillus or yeast, and the cellulose particles and hemicellulose particles are accompanied by at least one cell wall of Aspergillus or yeast. Is preferred. In the elastomer composition of the present invention, the fermentation treatment is a treatment using at least one of Aspergillus or yeast, and the short fiber is accompanied by at least one cell wall of Aspergillus or yeast. Is preferred. This is because when the cell wall of at least one of koji molds and yeasts is attached, fine irregularities are generated on the surface of short fibers and the like due to the accompanying koji molds and yeasts, and physical adhesion with the elastomer component is strengthened. .

  In the elastomer composition of the present invention, the residue is preferably shochu shochu. Here, the shochu shochu is a soot generated in the manufacturing process of the soot shochu and includes, for example, a residue generated after distilling the secondary soot.

  And it is preferable that the compounding quantity of the said residue is 1-50 mass parts with respect to 100 mass parts of said elastomer components in the elastomer composition of this invention. By making the blending amount of the residue 1 part by mass or more, it is possible to sufficiently reduce the environmental load, which is the object of the present invention, and by making the blending amount of the residue 50 parts by mass or less, an alternative raw material This is because it is possible to provide an elastomer composition having a performance close to that of an elastomer composition that does not use any of the above.

  In the elastomer composition of the present invention, the elastomer component is preferably a rubber component or a resin.

  The tire according to the present invention is characterized in that at least a part thereof is composed of the elastomer composition. In the conventional tire, the portion composed only of an elastomer composition such as a rubber composition is composed of an elastomer composition containing a residue produced in the fermentation treatment of organic matter, so that the elastomer component is maintained while maintaining the performance as a tire. It is possible to reduce the environmental load by reducing the amount of use.

  In the present invention, the particle diameter or diameter is determined by particle diameter measurement by laser diffraction (JIS Z8825-1), and in the method by laser diffraction, the average of the major axis and the minor axis of the residue (taken as a sphere). ) Is a value obtained by measuring.

  According to the present invention, there is provided an elastomer composition that can be produced at a low environmental load and at a low cost without using a complicated production process, and that has the same performance as an elastomer composition that does not contain a substitute material. be able to. Moreover, the tire with a low environmental load using the said elastomer composition can be provided.

It is sectional drawing of an example of the tire of this invention.

<Elastomer composition>
Below, the elastomer composition of this invention is demonstrated in detail. The elastomer composition according to the present invention is characterized in that the amount of the elastomer component used is reduced by blending and kneading the elastomer component with a residue having a predetermined property that is generated in the fermentation treatment of the organic matter. .

  Here, the elastomer component is composed of rubber components such as natural rubber and synthetic rubber, resins such as thermoplastic elastomers and thermosetting elastomers, or blended materials thereof. As the synthetic rubber, specifically, styrene -Butadiene copolymer rubber (SBR), polybutadiene rubber (BR), polyisoprene rubber (IR), acrylonitrile-butadiene copolymer rubber (NBR), chloroprene rubber (CR), butyl rubber (IIR) and the like. Examples of thermoplastic elastomers include ethylene-methyl acrylate copolymers, styrene elastomers, urethane elastomers, and polyolefin elastomers. Thermosetting elastomers include phenol elastomers, urea elastomers, and melamine elastomers. And epoxy elastomers. The elastomer composition of the present invention is optionally added to reinforcing fillers such as carbon black and silica, softeners such as aroma oil, vulcanization accelerators, vulcanization accelerators, anti-aging agents, etc. Additive may be included.

  The organic matter to be fermented is not particularly limited. For example, paper, livestock waste, food waste, shochu, construction wood, black liquor, excess sludge (for example, sewage sludge, manure sludge, Waste biomass such as methane fermentation sludge), unused biomass such as rice straw, wheat straw, rice husks, forest land remnants (thinned wood, damaged trees, etc.), feed crops, fruits, cereals, root vegetables, starch-based crops Biomass which is organic resources derived from renewable organisms, including resource crop biomass such as If such biomass is used, the environmental load at the time of elastomer composition manufacture can be reduced more. In addition, it is preferable to use waste biomass as organic matter from the viewpoint of effective utilization of resources and reduction of environmental burden.

  Among the organic substances mentioned above, examples of the organic substance containing at least one of the plant cell wall and the short fibers connected to the plant cell wall include fruits such as grapes, apples, cherries and palm fruits, rice, wheat and corn. Cereals, root vegetables such as potatoes and sweet potatoes, and resource crop biomass such as sugarcane, tail cords, eg, sea squirts, waste biomass such as potato shochu, rice shochu, and barley shochu , Unused biomass such as rice straw and wheat straw. Particularly, from the viewpoint of availability and reusability as a resource, shochu shochu, rice shochu, and wheat shochu are preferable. In addition, the raw materials of shochu, rice shochu, and wheat shochu are pulverized in the manufacturing process of shochu (for example, in the manufacture of shochu, adding sweet potato pulverized by secondary charging) It is also preferable in that the fibers are sufficiently fine.

  Here, the fermentation treatment of organic matter is to decompose the organic matter as described above by using the action of microorganisms such as gonococci and yeast to produce a specific substance. Anaerobic fermentation and aerobic It includes both fermentation. Specifically, as a fermentation treatment method of organic matter, as fermentation treatment using anaerobic microorganisms, for example, methane fermentation using methane-producing bacteria, ethanol fermentation using ethanol-fermenting bacteria, hydrogen fermentation using hydrogen-producing bacteria Examples of fermentation treatment using aerobic microorganisms include acetic acid fermentation using acetic acid-producing bacteria and wastewater treatment using various oxidizing bacteria such as ammonia oxidizing bacteria.

  And the residue generated in the fermentation treatment of organic matter means surplus sludge that has not been decomposed in the fermentation treatment, or residue after fermentation treatment such as various shochu, and the residue that remains after filtration Is also included. When surplus sludge is used as residue, sludge containing no iron-based flocculant, such as an aluminum compound, is used as the flocculant from the viewpoint of reducing the weight of the elastomer composition and preventing adverse effects on the elastomer composition due to metal inclusion. Sludge is preferred, and sludge containing no flocculant is more preferred.

  The residue can be blended in the elastomer component after removing hydrogen sulfide by, for example, smoke treatment or after carbonizing at a high temperature of about 800 ° C. Here, the soot treatment includes smoking residue with smoke generated when wood is heated. By performing the soot treatment, the residue can be blended with the elastomer component in a state where desulfurization (deodorization) and sterilized handling are easy.

  Other examples of residues that can be blended in the elastomer component include peptidoglycan contained in cell walls of fermenting bacteria, cellulose particles contained in plant cell walls, hemicellulose particles, lignin, short fibers in which plant cell walls are connected (cellulose short fibers) , Hemicellulose short fibers, etc.), or residues containing a mixture thereof. The residue preferably contains at least one of cellulose particles and hemicellulose particles alone. Further, it is more preferable that at least one of cellulose particles and hemicellulose particles and short fibers are included. By blending at least one of cellulose particles and hemicellulose particles alone into the elastomer composition, the cellulose particles and hemicellulose particles can function as micro drainage grooves, so that when the elastomer composition is used, for example, in a studless tire This is because the performance (such as performance on ice) of the studless tire can be improved. In addition, by including both particles and short fibers, for example, when an elastomer composition is used in a studless tire, it is possible to achieve an effect of absorbing moisture. Furthermore, the residue preferably contains at least one of peptidoglycan, cellulose particles and hemicellulose particles, and at least one of cellulose short fibers and hemicellulose short fibers. This is because by including peptidoglycan, particles, and short fibers, for example, when an elastomer composition is used in a studless tire, an effect of absorbing moisture can be achieved.

  Here, cellulose particles and hemicellulose particles are the main components of plant cell walls and have an aspect ratio of 1 to 5. Moreover, the cellulose short fiber and the hemicellulose short fiber are those in which cell walls of plants are connected and have an aspect ratio of 6 to 50. Cellulose particles and hemicellulose particles and cellulose short fibers and hemicellulose short fibers can be isolated from a mixture thereof, for example, by washing away the particles.

  Here, the particle size of the cellulose particles and hemicellulose particles is preferably 0.02 μm to 600 μm. When the particle size is less than 0.02 μm, it is difficult to handle, and when the particle size is larger than 600 μm, the dispersibility in the elastomer component is poor. Further, the diameter of the short fiber is preferably 1 μm to 150 μm, and the length of the short fiber is preferably 0.3 mm to 2 mm. This is because the dispersibility is poor when the diameter is large and the length is long, and the reinforcing effect on the elastomer composition and the drainage effect of the elastomer composition are low when the diameter is small and the length is short. Furthermore, it is preferable that 2 to 10 short fibers are assembled into a bundle. This is because the reinforcing effect on the elastomer composition and the drainage effect of the elastomer composition are increased by forming the bundle, but the dispersibility is deteriorated when the number of fibers gathered is too large.

  Cellulose particles and hemicellulose particles are preferably accompanied by at least one cell wall of Neisseria gonorrhoeae and yeast. Moreover, it is preferable that at least one cell wall of Neisseria gonorrhoeae and yeast is also attached to the short fiber. This is because when the cell wall of at least one of koji molds and yeasts is attached, fine irregularities are generated on the surface of short fibers and the like due to the accompanying koji molds and yeasts, and physical adhesion with the elastomer component is strengthened. .

  And the said residue mix | blended with the elastomer component in the 1st aspect of this invention has a maximum particle size of 600 micrometers or less, Preferably it is 300 micrometers or less, More preferably, it is 150 micrometers or less, It mix | blends with the elastomer component in the 2nd aspect of this invention. The above residue contains a residue having a particle size of 90 μm or more in a proportion of 80% by mass or less, preferably 50% by mass or less, more preferably 25% by mass or less, and particularly preferably 10% by mass or less. In the present invention, the residue blended in the elastomer component may have a maximum particle size of 600 μm or less and a content of residue having a particle size of 90 μm or more of 80% by mass or less. In the present invention, the particle size of the residue produced in the fermentation treatment of organic matter is preferably 0.02 μm or more. This is because the fine residue is difficult to obtain and difficult to handle.

  And the elastomer composition of this invention does not have a restriction | limiting in particular except mix | blending the above-mentioned residue which remains after fermenting an organic substance with an elastomer component, For example, it can manufacture as follows.

  First, the residue described above is dried and optionally smoked at a temperature of 800 ° C., for example. In addition, you may adjust the particle size of a residue using known means, such as sieving, pressing, and crushing, as needed.

  Next, the dried and smoke-treated residue is blended into the elastomer component together with an optional filler (carbon black or the like) and an additive and kneaded. In addition, there is no restriction | limiting in particular in the preparation method of the elastomer composition of this invention, For example, the residue and the various compounding agents selected suitably as needed are kneaded into an elastomer component using a Banbury mixer, a roll, etc. Can be prepared. Here, the residue is preferably blended so that the content of the residue in the elastomer composition is 0.5 to 30% by mass.

<Tire>
The tire of the present invention is characterized in that at least a part thereof is composed of the elastomer composition, and other than that, it can be manufactured using the same manufacturing method as that of a normal tire.

  Next, the tire of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of an example of the tire of the present invention. The tire shown in FIG. 1 has a pair of bead portions 1, a pair of sidewall portions 2, and a tread portion 3 connected to both sidewall portions 2, and extends in a toroid shape between the pair of bead portions 1. The carcass 4 that reinforces the parts 1, 2, and 3 and the belt 5 that is located on the outer side in the tire radial direction of the crown portion of the carcass 4 are provided.

  In the illustrated tire, the carcass 4 is composed of a single carcass ply, and a main body portion extending in a toroidal shape between a pair of bead cores (wires) 6 respectively disposed in the bead portion 1; Around the bead core 6, it consists of a folded portion wound up radially outward from the inside in the tire width direction toward the outside. In the illustrated example, the carcass 4 is composed of one carcass ply. However, in the tire of the present invention, a plurality of carcass plies may be provided.

  In the illustrated tire, the belt 5 is composed of two belt layers. However, in the tire of the present invention, the number of belt layers constituting the belt may be one or more, and is not limited thereto. Absent. Furthermore, the tire of the present invention may further include a belt reinforcing layer made of a rubberized layer of cords arranged substantially parallel to the tire circumferential direction on the outer side in the tire radial direction of the belt 5. Further, an interlayer rubber can be provided between the belt reinforcing layer and the belt reinforcing layer.

  And the tire of the example of illustration uses the elastomer composition which mix | blended the cellulose short fiber mentioned above to the tread part 3 at least. By using an elastomer composition containing cellulose short fibers in the tread portion 3, it is possible to provide a tire capable of improving running stability, wet performance, and ice / snow performance due to the interaction between the cellulose short fibers and the road surface. .

  Examples of the member using the elastomer composition include tread rubber, side rubber, bead filler or stiffener located on the radially outer side of the bead wire, carcass and belt coating rubber, and the like.

  Moreover, as gas with which the tire of the present invention is filled, an inert gas such as nitrogen, argon, helium, etc. can be used in addition to normal or air having an adjusted oxygen partial pressure.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the following examples.

(Conventional example 1)
Using a Banbury mixer, a rubber composition is prepared as an elastomer composition that does not contain potato shochu with the formulation shown in Tables 1 and 2, and a known vulcanizing agent is blended to vulcanize in the usual manner. After that, the crack growth property was measured and evaluated by the following method. The results are shown in Tables 1 and 2.

(Examples 1-7)
Using a Banbury mixer, a rubber composition as an elastomer composition containing shochu shochu A with the formulation shown in Table 1 was prepared, and after blending a known vulcanizing agent and the like and vulcanizing by a usual method, the following The crack growth property was measured and evaluated by the method described above. The results are shown in Table 1. In addition, potato shochu A means potato shochu lees produced by fermentation at a ratio of cocoon: rice koji = 1: 4 and dried to a moisture content of 8% with a spray dryer (Okawara Processing Machine). It is.

(Examples 8 to 14 and Comparative Example 1)
Using a Banbury mixer, a rubber composition as an elastomer composition containing shochu shochu B was prepared with the formulation shown in Table 2, and after blending a known vulcanizing agent and the like and vulcanizing by a normal method, the following The crack growth property was measured and evaluated by the method described above. The results are shown in Table 2. In addition, potato shochu B is a potato shochu made from potato: rice koji = 1: 4 and dried after drying to a moisture content of 8% using a CD dryer (manufactured by Nishimura Steel). A shochu shochu crushed by a Wonder Blender (Azuwan).

(Crack growth test)
For the vulcanized rubber obtained by vulcanizing the rubber compositions prepared in Conventional Example 1, Examples 1-14 and Comparative Example 1 at 160 ° C. for 15 minutes, the temperature was measured using a servo pulser manufactured by Shimadzu Corporation. : Crack growth was measured under the conditions of 80 ° C., frequency: 20 Hz, amplitude: quantitative 5% elongation. Then, index evaluation was performed based on the crack growth property of Conventional Example 1.

* 1 Emulsion polymerization SBR, 37.5 parts by mass of aroma oil for 100 parts by mass of rubber component
* 2 N110 manufactured by Asahi Carbon Co., Ltd.

  From Table 1 and Table 2, the rubber composition blended with the shochu shochu having a maximum particle size of 600 μm or less has a significant decrease in crack growth as compared with the rubber composition not blended with the shochu shochu. It became clear that there was no. Further, it has been clarified that crack growth does not significantly decrease when the ratio of the soot shochu having a particle size of 90 μm or more in the blended soot shochu is 80% by mass or less.

1 Bead part 2 Side wall part 3 Tread part 4 Carcass 5 Belt 6 Bead core

Claims (23)

An elastomer composition in which a residue produced in an organic fermentation process is blended with an elastomer component,
An elastomer composition, wherein a maximum particle size of the residue is 600 μm or less.   The elastomer composition according to claim 1, wherein the maximum particle size is 300 μm or less.   The elastomer composition according to claim 2, wherein the maximum particle size is 150 μm or less. An elastomer composition in which a residue produced in an organic fermentation process is blended with an elastomer component,
The elastomer composition, wherein the residue contains a residue having a particle diameter of 90 μm or more in a proportion of 80% by mass or less.   The elastomer composition according to claim 4, wherein the residue contains a residue having a particle diameter of 90 μm or more in a proportion of 50% by mass or less.   The elastomer composition according to claim 4, wherein the residue contains a residue having a particle size of 90 μm or more in a proportion of 25% by mass or less.   The elastomer composition according to claim 4, wherein the residue contains a residue having a particle size of 90 μm or more in a proportion of 10% by mass or less.   The elastomer composition according to any one of claims 1 to 7, wherein the organic substance is biomass. The fermentation treatment is a fermentation treatment of organic matter using a fermenting bacterium,
The elastomer composition according to any one of claims 1 to 8, wherein the residue contains a cell wall of the fermenting bacterium.   The elastomer composition according to claim 9, wherein a main component of the residue is peptidoglycan.   The elastomer composition according to claim 9, wherein the residue is mixed with the elastomer component after being smoked or carbonized. The organic substance is an organic substance containing at least one of a plant cell wall and a short fiber connected to the plant cell wall;
The elastomer composition according to claim 1, wherein the residue contains at least one of a cell wall and a short fiber of the plant.   The elastomer composition according to claim 12, wherein the residue is composed of at least one of cellulose particles and hemicellulose particles which are main components of the cell wall of the plant. The residue consists of the short fibers,
The elastomer composition according to claim 12, wherein the short fibers are composed of at least one of cellulose short fibers and hemicellulose short fibers.   14. The elastomer composition according to claim 13, wherein the cellulose particles and hemicellulose particles have a particle size of 0.02 to 600 [mu] m.   The elastomer composition according to claim 12, wherein the residue includes at least one of cellulose particles and hemicellulose particles, which are main components of the cell wall of the plant, and short fibers in which the cell wall of the plant is continuous. . The fermentation treatment is a treatment using at least one of Aspergillus or yeast;
The elastomer composition according to claim 13, wherein the cellulose particles and hemicellulose particles are accompanied by at least one cell wall of koji mold or yeast. The fermentation process is a process using at least one of Aspergillus or yeast,
The elastomer composition according to claim 12 or 14, wherein the short fiber is accompanied by at least one cell wall of Neisseria gonorrhoeae and yeast.   The elastomer composition according to claim 12 or 14, wherein 2 to 10 short fibers are aggregated to form a bundle.   The elastomer composition according to any one of claims 1 to 7, wherein the residue is shochu shochu.   The elastomer composition according to any one of claims 1 to 20, wherein the elastomer component is a rubber component.   The elastomer composition according to any one of claims 1 to 20, wherein the elastomer component is a resin.   A tire comprising at least a part of the elastomer composition according to any one of claims 1 to 22.

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