CN113773563A - Preparation method of rubber floor containing sericin particles and rubber floor - Google Patents
Preparation method of rubber floor containing sericin particles and rubber floor Download PDFInfo
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- CN113773563A CN113773563A CN202110973780.8A CN202110973780A CN113773563A CN 113773563 A CN113773563 A CN 113773563A CN 202110973780 A CN202110973780 A CN 202110973780A CN 113773563 A CN113773563 A CN 113773563A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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Abstract
The invention discloses a preparation method of a rubber floor containing sericin particles and the rubber floor. The method comprises the following steps: and the rubber compound containing the rubber particles is split along the thickness direction and vulcanized to prepare the rubber floor containing the rubber particles. And uniformly splitting the sheet along the thickness direction for 1-2 times. The rubber floor is paved on the ground, the surface has obvious improvement on the pollution resistance due to the flatness and the consistency of the surface, and the phenomenon that the pattern points are scratched and rubbed on soles to cause pollution is avoided after long-time use (more than one year).
Description
Technical Field
The invention relates to the technical field of rubber, in particular to a preparation method of a rubber floor containing figured rubber particles and the rubber floor.
Background
In the color and variety of the color rubber floor, the surface of one floor is scattered with the particle with different colors and different shapes, and the current production process of the floor is as follows:
firstly, coloring a base rubber material on a phi 450XK rubber mixing mill or a phi 550XK rubber mixing mill, and uniformly mixing the colors of rubber mixtures of one batch;
secondly, blending the crushed and sorted sericin particles with different shapes together and uniformly (the particles with single color can ensure uniform particle size distribution by blending, the particles with multiple colors are uniform in size, and the particles with different colors are uniformly dispersed);
thirdly, adopting a phi 200 mm cold feeding extruder and a phi 450 mm 1600 mm double-roll calender to roll the base rubber compound and then cutting the base rubber compound into square semi-finished rubber sheets (generally, the specifications of the floor are 500 multiplied by 500 mm, 600 multiplied by 600 mm, 1000 multiplied by 1000 mm and the like);
fourthly, automatically and manually distributing the weighed and matched lac particles on the surface of the film by a machine, and rolling the film by a hard compression roller to ensure that the lac particles are adhered to the surface of the film, so that the uneven distribution caused by the scattering, loss or movement of the lac particles in the process of filling the mold is avoided;
and fifthly, respectively filling the floor boards into a mold and vulcanizing the floor boards, wherein the sizes of a hot plate of a vulcanizing machine are 700 mm, 1200 mm and 1200 mm, vulcanizing the floor boards for a certain time at a certain temperature and under a certain pressure, opening the mold and taking out the vulcanized and mature pattern rubber floor boards, and pattern rubber particles which are different in size and are uniformly distributed appear on the surface of the floor boards.
The floor with the polystyrene particle has the following quality problems:
1. during batch production, it is difficult to ensure that one batch of floor surface particles are uniformly spread;
2. the glue particles on the floor surface are not completely embedded into the floor bottom glue by the surface of the mould, the sharp angle of the local particles is higher than the floor surface, the sharp angle is easy to scrape and rub dirt on the sole, and the pollution resistance of the floor surface is reduced
3. The adhesion strength between the gummy grains spread on the surface and the bottom layer glue stock is low, and when the floor is stressed and bent, the edges of the gummy grains can crack and fall off from the bottom glue.
Therefore, the development of a novel rubber floor containing rubber particles is a technical problem to be solved.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a preparation method of a rubber floor containing sericin particles and the rubber floor. The method of the invention adopts the transverse layer slitting of the film containing the gum grains, solves the problems in the prior art and fills the blank of the production method and the product.
One of the purposes of the invention is to provide a preparation method of a rubber floor containing figured rubber particles.
The method comprises the following steps:
and (3) splitting the rubber compound containing the rubber particles along the thickness direction, and vulcanizing to obtain the rubber floor containing the rubber particles.
In a preferred embodiment of the present invention,
and uniformly splitting the sheet along the thickness direction for 1-2 times.
In a preferred embodiment of the present invention,
(1) adding the sericin particles during mixing to obtain mixed rubber containing the sericin particles;
(2) tabletting the rubber compound containing the rubber particles, and cutting into rubber floor semi-finished rubber sheets;
(3) placing the rubber floor semi-finished rubber sheet on a slitting machine, and slitting along the thickness direction of the semi-finished rubber sheet;
(4) and vulcanizing the split semi-finished rubber sheet.
In a preferred embodiment of the present invention,
in the step (1), the step (c),
the amount of the flower gum particles is 5-15 parts by weight based on 100 parts by weight of the base rubber; preferably 5 to 12.5 parts by weight.
The formula of the flower glue particles adopts the conventional formula in the field of rubber floors.
In the present invention, different gum particles can be selected according to the final requirements of the product, such as: the sericin particles with different colors and different particle size ranges, etc.
In a preferred embodiment of the present invention,
the particle size range of the sericin particles is 0.5-5 mm.
In a preferred embodiment of the present invention,
in the step (2), the thickness of the semi-finished rubber sheet of the rubber floor is 7-11 mm; preferably 7-10 mm.
In a preferred embodiment of the present invention,
in the step (3), the step (c),
the feeding speed of the blade cutting machine is 6-10 m/min.
In a preferred embodiment of the present invention,
in the step (3), the step (c),
the cutting edge of the slicer cutter is arranged at the position which deviates 3-7mm backwards from the wedge-shaped minimum gap of the upper pressing roller and the lower pressing roller and is used as the initial position of slicing.
Before vulcanization and crosslinking, the internal molecular structure of the semi-finished rubber sheet has obvious viscoelasticity and is easy to stick to the surface of the blade, and particularly when the front pressure is high, the blade passes through the surface of the rubber sheet, the surface of the cut rubber sheet is subjected to blade pollution traces due to friction of the rubber sheet. The film surface, once contaminated, becomes a waste product. After the cutting edge moves backwards by a few millimeters along the horizontal direction from the minimum clearance (namely, the place with the maximum pressure) of the upper compression roller and the lower compression roller, the pressure of the cutting edge at the cutting position becomes small, and simultaneously, the two films after being cut open can be separated from the blade under the action of the separation guide plate like the upper lip and the lower lip of an opened duckbill, so that the surface of the forward and straight film cannot rub the blade which slides transversely, and the risk that the surface of the film is polluted by the blade is avoided.
The sharpening operation and the slicing operation of the band knife are separately carried out, sharpening is not carried out during the slicing operation, and the blade is kept in a clean state all the time during the slicing operation.
The slicer adopted by the invention can adopt the slicer in the prior art, and is preferably used for the slicer of special production equipment for slicing leather and sponge plates.
In a preferred embodiment of the present invention,
in the step (4), the vulcanization temperature is 150-170 ℃; preferably 153 ℃ to 163 ℃;
the vulcanization time is 9-15 minutes.
In the present invention, the formula of the rubber compound is the formula of the rubber floor which is common in the art, and the skilled person can determine the formula according to the actual situation.
Another object of the present invention is to provide a rubber floor containing the crumb rubber particles produced by the method of one of the objects of the present invention.
The invention has the following aspects:
1. designing process conditions and process methods;
2. selecting a domestic special production equipment slicer for slicing leather and sponge plates;
3. repeatedly carrying out a splitting test on the rubber floor semi-finished product film containing the gum grain on a splitting machine, and finding out proper operation methods such as feed speed, band knife rotation speed, band knife sharpening and the like;
4. the film is broken efficiently, smoothly and with high dimensional accuracy.
ADVANTAGEOUS EFFECTS OF INVENTION
1. The distribution of the gummy grains on the surface of the vulcanized rubber floor is very uniform, and the size proportion of the spots is very suitable;
2. the stain resistance of the surface of the rubber floor is obviously improved, and the phenomenon of pollution caused by rubbing the soles is avoided at the flower points;
3. the technological processes of crushing and screening the lac particles are simplified, because the same kind of particles are mixed into the film, a plurality of section sizes with different sizes can appear after the film is split, and particles with different shapes do not need to be made, so that the production cost of the crushed lac particles is greatly saved;
4. the film is immediately filled into a mold and vulcanized after being split, and is not contacted with other tools, the possibility of pollution on the surface of the film before vulcanization is very low, and compared with the original method, the method improves the product percent of pass during floor vulcanization.
Drawings
FIG. 1 is a schematic view of the breaking process of the present invention.
Description of reference numerals:
1-upper press roll; 2-pressing roller; 3-film; 4-cutting knife; 5-separation plate.
The arrow shown in the figure indicates the sheet feeding direction, and the blade of the cutting knife of the slicer is arranged at the position which is deviated 3-7mm backwards from the wedge-shaped minimum gap of the upper pressing roller and the lower pressing roller and is used as the initial position for cutting the sliced sheet.
Detailed Description
While the present invention will be described in detail and with reference to the specific embodiments thereof, it should be understood that the following detailed description is only for illustrative purposes and is not intended to limit the scope of the present invention, as those skilled in the art will appreciate numerous insubstantial modifications and variations therefrom.
The sericin particles adopted in the examples are self-made, and the preparation process is as follows:
firstly, according to the designed color of the rubber particles, the floor base rubber is colored on an open mill according to a color matching formula to prepare a batch of required all colored rubber compound;
and secondly, selecting a proper vulcanization mold (the thickness of a mold cavity is selected) according to the process requirements, determining the vulcanization temperature, the vulcanization pressure and the vulcanization time, (the vulcanization temperature is 153-163 ℃, the vulcanization pressure is 3.5-5.0 MPa, and the vulcanization time is 3-5 minutes.) to vulcanize the pre-vulcanized rubber plate, and cutting and dicing the rubber plate while the rubber plate is hot, (the hot rubber plate has low strength and is easy to cut) and then cooling at normal temperature.
And thirdly, crushing and screening the pre-vulcanized and cooled sericin plate blocks at normal temperature by adopting a special rubber crusher (XP260, XP400 and XP600 which are three devices arranged on a production line of the company, wherein the machine type is selected according to the yield) and a screen (the screen has various specifications from 5 meshes to 20 meshes).
And fourthly, separating the sericin particles according to the particle size by using an automatic composite screening machine, wherein the sericin particles (the size of the particles is less than 1.5 mm, the size of the particles is small particles between 1.5 mm and 3 mm, the size of the particles is large particles between 3.0 mm and 4.5 mm, and the size of the particles above 5mm is super-large particles) are loaded into a plastic barrel, and the plastic barrel is transported to a floor production line for standby after 20 kg.
The particle size range of the sericin particles is 0.5-5 mm.
Other materials used in the examples are commercially available.
Example 1
The formula of the rubber compound is as follows: (in parts by weight)
| Styrene-butadiene rubber 1502 | 60 |
| High styrene | 10 |
| Chlorinated polyethylene | 35 |
| |
5 |
| Stearic acid | 4 |
| 1076 |
2 |
| Microcrystalline wax | 1 |
| Polyethylene wax | 1.5 |
| Titanium white powder 930 | 3 |
| Aluminum hydroxide | 40 |
| Zinc borate | 20 |
| Shanxi pottery clay | 70 |
| White carbon black | 30 |
| Silicon 69 | 2 |
| Polyethylene glycol | 1.5 |
| |
2 |
| Accelerant CZ | 1.5 |
| Accelerator EZ | 1.2 |
| S | 4.5 |
The amount of the flower gum particles is 5 parts by weight based on 100 parts by weight of the matrix rubber;
the preparation method comprises the following steps:
(1) adding the sericin particles during mixing to obtain mixed rubber containing the sericin particles;
(2) tabletting the rubber compound containing the rubber particles, and cutting into rubber floor semi-finished rubber sheets;
size of film 515 x 515 mm; the thickness is 7 mm;
(3) placing the rubber floor semi-finished rubber sheet on a slitting machine, and slitting along the thickness direction of the semi-finished rubber sheet; one semi-finished film is divided into two pieces;
the feed speed of the blade cutting machine is 6 m/min.
And the wedge-shaped minimum gap between the cutting edge and the upper and lower compression rollers is deviated backwards by 3 mm to be used as the initial position of the cutting and slicing.
(4) Vulcanizing the split semi-finished rubber sheet;
the vulcanization temperature is 150 ℃;
the vulcanization time was 15 minutes.
The rubber floor containing the sericin particles is obtained after vulcanization, the sericin particles are distributed very uniformly, and the size ratio of the flower dots is very suitable.
The rubber floor is paved on the ground, the pollution resistance of the rubber floor is obviously improved due to the flatness and the consistency of the rubber floor, and after long-time use (more than one year), the phenomenon that the sole is scratched and polluted is avoided.
Example 2
The formulation of the mix was the same as in example 1.
The amount of the flower gum particles is 10 parts by weight based on 100 parts by weight of the matrix rubber;
the preparation method comprises the following steps:
(1) adding the sericin particles during mixing to obtain mixed rubber containing the sericin particles;
(2) tabletting the rubber compound containing the rubber particles, and cutting into rubber floor semi-finished rubber sheets;
size 615 x 615 mm of film; the thickness is 10 mm;
(3) placing the rubber floor semi-finished rubber sheet on a slitting machine, and slitting along the thickness direction of the semi-finished rubber sheet; one semi-finished film is divided into two pieces;
the feed speed of the blade opening machine is 10 m/min.
And the wedge-shaped minimum gap between the cutting edge and the upper and lower pressing rollers is deviated from 7mm backwards to be used as the initial position of the cutting and slicing.
(4) Vulcanizing the split semi-finished rubber sheet;
the vulcanization temperature is 170 ℃;
the vulcanization time was 9 minutes.
The rubber floor containing the sericin particles is obtained after vulcanization, the sericin particles are distributed very uniformly, and the size ratio of the flower dots is very suitable.
The rubber floor is paved on the ground, the pollution resistance of the rubber floor is obviously improved due to the flatness and the consistency of the rubber floor, and after long-time use (more than one year), the phenomenon that the sole is scratched and polluted is avoided.
Example 3
The amount of the flower gum particles is 10 parts by weight based on 100 parts by weight of the matrix rubber;
the preparation method comprises the following steps:
(1) adding the sericin particles during mixing to obtain mixed rubber containing the sericin particles;
(2) tabletting the rubber compound containing the rubber particles, and cutting into rubber floor semi-finished rubber sheets;
the size of the film 1025 x 1025 mm; the thickness is 9 mm;
(3) placing the rubber floor semi-finished rubber sheet on a slitting machine, and slitting along the thickness direction of the semi-finished rubber sheet; one semi-finished film is divided into two pieces;
the feed speed of the blade cutting machine is 8 m/min.
And the wedge-shaped minimum gap between the cutting edge and the upper and lower pressing rollers is deviated backwards by 5mm to be used as the initial position of the cutting and slicing.
(4) Vulcanizing the split semi-finished rubber sheet;
the vulcanization temperature is 163 ℃;
the vulcanization time was 12 minutes.
The rubber floor containing the sericin particles is obtained after vulcanization, the sericin particles are distributed very uniformly, and the size ratio of the flower dots is very suitable.
The rubber floor is paved on the ground, the pollution resistance of the rubber floor is obviously improved due to the flatness and the consistency of the rubber floor, and after long-time use (more than one year), the phenomenon that the sole is scratched and polluted is avoided.
Comparative example
The existing production process is adopted:
firstly, coloring a base rubber material on a phi 450XK rubber mixing mill or a phi 550XK rubber mixing mill, and uniformly mixing the colors of rubber mixtures of one batch;
secondly, blending the crushed and sorted sericin particles with different shapes together and uniformly (the particles with single color can ensure uniform particle size distribution by blending, the particles with multiple colors are uniform in size, and the particles with different colors are uniformly dispersed);
thirdly, adopting a phi 200 mm cold feeding extruder and a phi 450 mm 1600 mm double-roll calender to roll the base rubber compound and then cutting the base rubber compound into square semi-finished rubber sheets (generally, the specifications of the floor are 500 multiplied by 500 mm, 600 multiplied by 600 mm, 1000 multiplied by 1000 mm and the like);
fourthly, automatically and manually spreading the weighed and matched lac particles on the surface of the film by a machine, and rolling by a hard compression roller to adhere the lac particles on the surface of the film;
and fifthly, respectively filling the materials into a mold and vulcanizing the materials, enabling the sizes of a hot plate of a vulcanizing machine to be 700 mm, 1200 mm and 1200 mm, vulcanizing the materials for a certain time at a certain temperature and under a certain pressure, opening the mold and taking out the vulcanized and mature pattern-spreading rubber floor.
When the rubber floor prepared by the comparative example is produced in batches, the uniform spreading of the surface particles of the floor in one batch is difficult to ensure;
the floor is laid on a road surface for only about three months, the surface of the rubber floor is seriously polluted because the figured rubber particles on the surface of the floor are not completely pressed into the bottom rubber of the floor by the surface of the mould, the sharp angle of the local particles is higher than the surface of the floor, and the sharp angle extending out is easy to scrape and rub the dirt on the sole, so that the pollution resistance of the surface of the floor is reduced; moreover, the bonding strength between the gummy grains spread on the surface and the bottom layer glue stock is low, and when the floor is stressed and bent, the edges of the gummy grains can crack and fall off from the bottom layer glue.
As can be seen from the examples and the comparative examples, the rubber floor containing the sericin particles prepared by the method has the advantages that the sericin particles are distributed very uniformly, and the size ratio of the flower dots is very suitable; after long-time laying, the stain resistance of the surface of the rubber floor is obviously improved, and after long-time use, the phenomenon of pollution caused by rubbing the soles is avoided; moreover, the sericin particles are not dropped off.
Claims (10)
1. A method for preparing a rubber floor containing sericin particles is characterized by comprising the following steps:
and (3) splitting the rubber compound containing the rubber particles along the thickness direction, and vulcanizing to obtain the rubber floor containing the rubber particles.
2. The process according to claim 1, characterized in that:
and uniformly splitting the sheet along the thickness direction for 1-2 times.
3. The method of claim 1, wherein the method comprises:
(1) adding the sericin particles during mixing to obtain mixed rubber containing the sericin particles;
(2) tabletting the rubber compound containing the rubber particles, and cutting into rubber floor semi-finished rubber sheets;
(3) placing the rubber floor semi-finished rubber sheet on a slitting machine, and slitting along the thickness direction of the semi-finished rubber sheet;
(4) and vulcanizing the split semi-finished rubber sheet.
4. The method of claim 3, wherein:
in the step (1), the step (c),
the amount of the flower gum particles is 5-15 parts by weight based on 100 parts by weight of the base rubber; preferably 5 to 12.5 parts by weight.
5. The method of claim 4, wherein:
the particle size range of the sericin particles is 0.5-5 mm.
6. The method of claim 3, wherein:
in the step (2), the thickness of the semi-finished rubber sheet of the rubber floor is 7-11 mm; preferably 7-10 mm.
7. The method of claim 3, wherein:
in the step (3), the step (c),
the feeding speed of the blade cutting machine is 6-10 m/min.
8. The method of claim 1, wherein:
in the step (3), the step (c),
the cutting edge of the slicer cutter is arranged at the position which deviates 3-7mm backwards from the wedge-shaped minimum gap of the upper pressing roller and the lower pressing roller and is used as the initial position of slicing.
9. The method of claim 3, wherein:
in the step (4), the vulcanization temperature is 150-170 ℃; preferably 153 ℃ to 163 ℃;
the vulcanization time is 9-15 minutes.
10. A rubber flooring containing the crumb rubber particles made by the process of any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110973780.8A CN113773563A (en) | 2021-08-24 | 2021-08-24 | Preparation method of rubber floor containing sericin particles and rubber floor |
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|---|---|---|---|
| CN202110973780.8A CN113773563A (en) | 2021-08-24 | 2021-08-24 | Preparation method of rubber floor containing sericin particles and rubber floor |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB255017A (en) * | 1925-07-09 | 1926-07-29 | Goodrich Co B F | Improved method of making variegated articles of rubber or the like |
| JPH04161651A (en) * | 1990-10-25 | 1992-06-05 | Hayakawa Rubber Co Ltd | Rubber tile with marble pattern and manufacture thereof |
| JPH04332625A (en) * | 1991-05-08 | 1992-11-19 | Hiroshima Kasei Ltd | Manufacture of rubber sheet with scattered-figure pattern |
| JPH079623A (en) * | 1993-06-28 | 1995-01-13 | Hayakawa Rubber Co Ltd | Rubber tile and production thereof |
| CN1872531A (en) * | 2006-01-27 | 2006-12-06 | 珠海经济特区珠瑞橡胶化学工业有限公司 | Rubber foaming shoe bottom, rubber foaming plates and pieces, and fabricating method of molding with cloth being added |
| WO2009087786A1 (en) * | 2008-01-07 | 2009-07-16 | Kohan Corporation | Resin rubber mixture slice sheet, resin rubber mixture sheet and baglike article |
| CN107674268A (en) * | 2017-10-11 | 2018-02-09 | 陕西秦力橡胶有限责任公司 | A kind of artificial granite line rubber floor covering and its production method |
| CN107953466A (en) * | 2017-10-25 | 2018-04-24 | 安徽北马科技有限公司 | A kind of preparation method for the elastomeric material being laid with for train |
-
2021
- 2021-08-24 CN CN202110973780.8A patent/CN113773563A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB255017A (en) * | 1925-07-09 | 1926-07-29 | Goodrich Co B F | Improved method of making variegated articles of rubber or the like |
| JPH04161651A (en) * | 1990-10-25 | 1992-06-05 | Hayakawa Rubber Co Ltd | Rubber tile with marble pattern and manufacture thereof |
| JPH04332625A (en) * | 1991-05-08 | 1992-11-19 | Hiroshima Kasei Ltd | Manufacture of rubber sheet with scattered-figure pattern |
| JPH079623A (en) * | 1993-06-28 | 1995-01-13 | Hayakawa Rubber Co Ltd | Rubber tile and production thereof |
| CN1872531A (en) * | 2006-01-27 | 2006-12-06 | 珠海经济特区珠瑞橡胶化学工业有限公司 | Rubber foaming shoe bottom, rubber foaming plates and pieces, and fabricating method of molding with cloth being added |
| WO2009087786A1 (en) * | 2008-01-07 | 2009-07-16 | Kohan Corporation | Resin rubber mixture slice sheet, resin rubber mixture sheet and baglike article |
| CN107674268A (en) * | 2017-10-11 | 2018-02-09 | 陕西秦力橡胶有限责任公司 | A kind of artificial granite line rubber floor covering and its production method |
| CN107953466A (en) * | 2017-10-25 | 2018-04-24 | 安徽北马科技有限公司 | A kind of preparation method for the elastomeric material being laid with for train |
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