CN103029255B - The preparation method of EPDM mold pressing sponge rubber and the preparation method of special-shaped sponge sheath - Google Patents
The preparation method of EPDM mold pressing sponge rubber and the preparation method of special-shaped sponge sheath Download PDFInfo
- Publication number
- CN103029255B CN103029255B CN201210524071.2A CN201210524071A CN103029255B CN 103029255 B CN103029255 B CN 103029255B CN 201210524071 A CN201210524071 A CN 201210524071A CN 103029255 B CN103029255 B CN 103029255B
- Authority
- CN
- China
- Prior art keywords
- mill
- sizing material
- roller
- sponge
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present invention relates to the preparation method of EPDM mold pressing sponge rubber and the preparation method of special-shaped sponge sheath.By the temperature control of mill roller at 70 DEG C ~ 80 DEG C, EPDM rubber on a mill until heat refining 5 ~ 10 times until sizing material is transparent and homogeneous shape; By the temperature control of mill roller at 40 DEG C ~ 60 DEG C, sizing material good for heat refining is plasticated 10 ~ 15 times on a mill until until sizing material is transparent and homogeneous shape, then adopt mill mixing technique.By the size of sponge adhesive tape according to shaper, crescent moon matrix is longitudinally determined with cutting off the feet cutter, get the die cavity up and down that two panels puts into special-shaped shaper respectively, shaper is put into vulcanizing press and carries out sulfur foam, curing temperature 165 DEG C ~ 175 DEG C, 3 ~ 4 minutes time, dull and stereotyped pressure 10MPa ~ 15MPa.The present invention is then the requirement based on automobile industry development, has turned to industrialized research by laboratory research, and working condition can be made controlled, and production process is more stable.<pb pnum="1" />
Description
Technical field
The present invention relates to a kind of preparation method of expanded material, particularly a kind of preparation method of EPDM mold pressing sponge rubber and the preparation method of special-shaped sponge sheath.
Background technology
As everyone knows, sponge rubber is a kind of porous elastomer material, it has the performances such as light weight, excellent buffering, compression, sealing and heat-insulating sound-insulating, using it as buffering, liner, heat insulation, sound insulation, vibration-absorptive material, can obtain in the various fields such as household electrical appliances, automobile, building house and apply widely.Latex foam products is different from general solid rubber goods, and two kinds of main process occur in sulfuration heating process simultaneously, and blowing agent decomposition discharges gas and rubber is crosslinked under vulcanizing agent effect.The gas discharged due to blowing agent is dissolved in sizing material at first, and after gas dissolution reaches capacity, existing gas-phase product is formed, and sizing material seethes with excitement foaming under the pressure of formed gas, and simultaneously sizing material is fixed up eyelet by vulcanization crosslinking.Require curingprocess rate to be adjusted to bubbing produces is a bit larger tham resistance corresponding to hole wall itself to the drawn expanded power of hole wall for this reason.If the formation excessive velocities of gas phase, because sizing material has little time sulfuration, then the bubble one by one formed will break, and cause gas from each eyelet diffusion effusion, blow pressure reduces; Otherwise cross slow or curingprocess rate is too fast if gas forms speed mutually, then sizing material can just complete sulfuration sizing before formation loose structure, caused goods not foam.
In recent years along with the develop rapidly of auto industry; operating temperature in automobile engine nacelle becomes more and more higher; not only require that the sebific duct heat-resisting quantity of each system matched is good; simultaneously each other can not frictional impact mutually; this just requires that the cellular rubber sheath coincide with its sebific duct shape is overlapped at the position easily collided at sebific duct; protection sebific duct, plays the effect of buffering, heat insulation, sound insulation, the service life of prolongation sebific duct.
At present, the production of the sponge rubber of the special-shaped sheath of domestic EPDM mold pressing is just based on experimental study, and employing microwave continuous vulcanization, salt bath continuous vulcanization can only produce the sponge sheath of straight type, can not coincide with the sebific duct shape with bent angle.The present invention is then the requirement based on automobile industry development, has turned to industrialized research by laboratory research, and working condition can be made controlled, and production process is more stable.The present invention selects ethylene propylene diene rubber, select blowing agent Celogen Az (being called for short AC) and two benzene sulfonyl hydrazide ethers (being called for short OBSH), by the proportioning of various auxiliary agent and the control of process conditions in adjustment formula, satisfactory EPDM mold pressing special-shaped sponge sheath can be prepared.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of EPDM mold pressing sheath sponge rubber, and the preparation method of special-shaped sponge sheath for preparing of sandwich rubber thus.This technique is divided into following step: the heat refining of rubber, plasticate, mixing, foaming sulfidization molding.
The present invention adopt formula of ethylene propylene terpolymer with as follows: component and parts by weight as follows:
Ethylene propylene diene rubber 100 parts,
Carbon black 60 ~ 80 parts,
Softening agent paraffin oil 30 ~ 50 parts,
3 ~ 5 parts, blowing promotor zinc oxide,
Blowing promotor stearic acid 2 ~ 4 parts,
Accelerator dibenzothiazyl disulfide 0.3 ~ 0.5 part,
Accelerant zinc dibutyl dithiocaarbamate 1.3 ~ 1.5 parts,
Accelerant disulfide tetra methylthiuram 0.4 ~ 0.8 part,
Promoter tetra-sulfurized pair thiuram 0.3 ~ 0.5 part,
Blowing agent Celogen Az 6.5 ~ 7.5 parts,
2.5 ~ 3.5 parts, blowing agent two benzene sulfonyl hydrazide ether,
0.8 ~ 1.2 part, vulcanizing agent sulphur.
The Mooney viscosity ML of above-mentioned rubber EPDM
(1+4)100 DEG C=28
Carbon black: semi-reinforcing hydrocarbon black N774
Softening agent: paraffin oil
Blowing promotor: zinc oxide, stearic acid
Promoter: dibenzothiazyl disulfide, zinc dibutyl dithiocarbamate, tetramethylthiuram disulfide, tetra-sulfurized pair thiuram
Blowing agent: Celogen Az, two benzene sulfonyl hydrazide ethers
Vulcanizing agent: sulphur
Preparation method of the present invention is as follows:
1) heat refining
By the temperature control of mill roller at 70 DEG C ~ 80 DEG C, EPDM rubber on a mill until heat refining 5 ~ 10 times until sizing material is transparent and homogeneous shape;
2) plasticate
By the temperature control of mill roller at 40 DEG C ~ 60 DEG C, sizing material good for heat refining is plasticated 10 ~ 15 times on a mill until until sizing material is transparent and homogeneous shape
3) mixing
1. by the temperature control of mill roller at 50 DEG C ~ 70 DEG C, roll spacing is adjusted to 2 ~ 3mm, throws in above-mentioned sizing material of plasticating and forms continuous print bag roller glue;
2. 1/2nd carbon blacks, blowing promotor, promoter premix are slowly added between mill two roller after stirring, left and right cutter, make it dispersion;
3. tune up roll spacing to 3 ~ 4mm, alternately add softening agent and remaining 1/2nd carbon blacks, cutter about when material is mixed into substantially, make it dispersion;
4. after being stirred by blowing agent premix, once add between mill two roller, left and right cutter makes it dispersion, 5 ~ 7 minutes time;
5. roll spacing is adjusted to 1mm, thin-pass 8 ~ 10 times;
6. tune up roll spacing to 2 ~ 4mm, smash refining evenly, lower adhesive tape;
Sandwich rubber of the present invention, hardness is low, and oil-filled amount is large, and conventional mixer mixing process cannot carry out, and the present invention adopts mill mixing technique.
The method of sponge sheath prepared by sponge rubber, it is characterized in that the size of sponge adhesive tape according to shaper, crescent moon matrix is longitudinally determined with cutting off the feet cutter, get the die cavity up and down that two panels puts into special-shaped shaper respectively, shaper is put into vulcanizing press and carries out sulfur foam, curing temperature 165 DEG C ~ 175 DEG C, 3 ~ 4 minutes time, dull and stereotyped pressure 10MPa ~ 15MPa.
The present invention is based on Automobile Market research and development, adopt mill mixing technique, EPDM mold pressing sandwich rubber and special-shaped sponge sheath can be prepared by the proportioning of various auxiliary agent and the control of process conditions in adjustment formula.
Detailed description of the invention
Embodiment 1
1, material ((blended unit: parts by weight)) is taken by following formula:
Ethylene propylene diene rubber 100 parts,
Carbon black 60 parts,
Paraffin oil 30 parts,
3 parts, zinc oxide,
Stearic acid 2 parts,
Dibenzothiazyl disulfide 0.3 part,
Zinc dibutyl dithiocarbamate 1.3 parts,
Tetramethylthiuram disulfide 0.4 part,
Tetra-sulfurized pair thiuram 0.3 part,
Celogen Az 6.5 parts,
Two 2.5 parts, benzene sulfonyl hydrazide ethers,
0.8 part, sulphur.
2, heat refining
Mill roller temperature 70 DEG C, roll spacing 1mm, EPDM rubber on a mill until heat refining 5 ~ 10 times until sizing material is transparent and homogeneous shape;
3, plasticate
Mill roller temperature 40 DEG C, roll spacing 1mm, plasticates 10 ~ 15 times until sizing material is transparent and homogeneous shape on a mill until by sizing material good for heat refining
4, mixing
1. by the temperature control of mill roller at 50 DEG C, adjustment roll spacing, to 3mm, is thrown in above-mentioned sizing material of plasticating and is formed continuous print bag roller glue;
2. 1/2nd carbon blacks, zinc oxide, stearic acid, accelerator dibenzothiazyl disulfide, accelerant zinc dibutyl dithiocaarbamate, accelerant disulfide tetra methylthiuram, promoter tetra-sulfurized pair thiuram premix are slowly added between mill two roller after stirring, left and right cutter, makes it dispersion;
3. adjust roll spacing to 3mm, alternately add paraffin oil and remaining 1/2nd carbon blacks, cutter about when material is mixed into substantially, make it dispersion;
4. after blowing agent Celogen Az, blowing agent two benzene sulfonyl hydrazide ether and vulcanizing agent sulphur premix being stirred, once add between mill two roller, left and right cutter makes it dispersion, 5 minutes time;
5. roll spacing is adjusted to 1mm, thin-pass 8 times;
6. adjust roll spacing to 2mm, smash refining evenly, lower adhesive tape, its size (long × wide × thick) is 600mm × 240mm × 3mm;
7. by the size of above-mentioned sponge adhesive tape according to shaper, longitudinally determining crescent moon matrix with cutting off the feet cutter, getting the die cavity up and down that two panels puts into special-shaped shaper respectively, shaper being put into vulcanizing press and carry out sulfur foam, curing temperature
165 DEG C, 3 minutes time, dull and stereotyped pressure 10MPa.As follows according to above method gained sponge sheath performance:
Embodiment 2
1, material ((blended unit: parts by weight)) is taken by following formula:
Ethylene propylene diene rubber 100 parts,
Carbon black 70 parts,
Paraffin oil 40 parts,
4 parts, zinc oxide,
Stearic acid 3 parts,
Dibenzothiazyl disulfide 0.4 part,
Zinc dibutyl dithiocarbamate 1.4 parts,
Tetramethylthiuram disulfide 0.6 part,
Tetra-sulfurized pair thiuram 0.4 part,
Celogen Az 7 parts,
Two 3 parts, benzene sulfonyl hydrazide ethers,
1 part, sulphur.
2, heat refining
Mill roller temperature 75 DEG C, roll spacing 1mm, EPDM rubber on a mill until heat refining 5 ~ 10 times until sizing material is transparent and homogeneous shape;
3, plasticate
Mill roller temperature 50 DEG C, roll spacing 1mm, plasticates 10 ~ 15 times until sizing material is transparent and homogeneous shape on a mill until by sizing material good for heat refining
4, mixing
1. by the temperature control of mill roller at 60 DEG C, adjustment roll spacing, to 2mm, is thrown in above-mentioned sizing material of plasticating and is formed continuous print bag roller glue;
2. by 1/2nd carbon blacks, zinc oxide, stearic acid, accelerator dibenzothiazyl disulfide, accelerant zinc dibutyl dithiocaarbamate, accelerant disulfide tetra methylthiuram, promoter tetra-sulfurized pair thiuram, slowly add between mill two roller after premix stirs, left and right cutter, makes it dispersion;
3. adjust roll spacing to 4mm, alternately add paraffin oil and remaining 1/2nd carbon blacks, cutter about when material is mixed into substantially, make it dispersion;
4. after blowing agent Celogen Az, blowing agent two benzene sulfonyl hydrazide ether and vulcanizing agent sulphur premix being stirred, once add between mill two roller, left and right cutter makes it dispersion, 6 minutes time;
5. roll spacing is adjusted to 1mm, thin-pass 9 times;
6. adjust roll spacing to 3mm, smash refining evenly, lower adhesive tape, its size (long × wide × thick) is 600mm × 240mm × 3mm;
7. by the size of above-mentioned sponge adhesive tape according to shaper, longitudinally determining crescent moon matrix with cutting off the feet cutter, getting the die cavity up and down that two panels puts into special-shaped shaper respectively, shaper is put into vulcanizing press and carries out sulfur foam, curing temperature 170 DEG C, 3.5 minutes time, dull and stereotyped pressure 12MPa.As follows according to above method gained sponge sheath performance:
| Sequence number | Test event | Unit | Measured value |
| 1 | Density | g/cm 3 | 0.20 |
| 2 | Hot strength | MPa | 2.0 |
| 3 | Percentage elongation | % | 350 |
Embodiment 3
1, material ((blended unit: parts by weight)) is taken by following formula:
Ethylene propylene diene rubber 100 parts,
Carbon black 80 parts,
Paraffin oil 50 parts,
5 parts, zinc oxide,
Stearic acid 4 parts,
Dibenzothiazyl disulfide 0.5 part,
Zinc dibutyl dithiocarbamate 1.5 parts,
Tetramethylthiuram disulfide 0.8 part,
Tetra-sulfurized pair thiuram 0.5 part,
Celogen Az 7.5 parts,
Two 3.5 parts, benzene sulfonyl hydrazide ethers,
1.2 parts, sulphur.
2, heat refining
Mill roller temperature 80 DEG C, roll spacing 1mm, EPDM rubber on a mill until heat refining 5 ~ 10 times until sizing material is transparent and homogeneous shape;
3, plasticate
Mill roller temperature 60 DEG C, roll spacing 1mm, plasticates 10 ~ 15 times until sizing material is transparent and homogeneous shape on a mill until by sizing material good for heat refining
4, mixing
1. by the temperature control of mill roller at 70 DEG C, adjustment roll spacing, to 3mm, is thrown in above-mentioned sizing material of plasticating and is formed continuous print bag roller glue;
2. by 1/2nd carbon blacks, zinc oxide, stearic acid, accelerator dibenzothiazyl disulfide, accelerant zinc dibutyl dithiocaarbamate, accelerant disulfide tetra methylthiuram, promoter tetra-sulfurized pair thiuram, slowly add between mill two roller after premix stirs, left and right cutter, makes it dispersion;
3. adjust roll spacing to 3mm, alternately add paraffin oil and remaining 1/2nd carbon blacks, cutter about when material is mixed into substantially, make it dispersion;
4. after blowing agent Celogen Az, blowing agent two benzene sulfonyl hydrazide ether and vulcanizing agent sulphur premix being stirred, once add between mill two roller, left and right cutter makes it dispersion, 7 minutes time;
5. roll spacing is adjusted to 1mm, thin-pass 10 times;
6. adjust roll spacing to 4mm, smash refining evenly, lower adhesive tape, its size (long × wide × thick) is 600mm × 240mm × 3mm;
7. by the size of above-mentioned sponge adhesive tape according to shaper, longitudinally determining crescent moon matrix with cutting off the feet cutter, getting the die cavity up and down that two panels puts into special-shaped shaper respectively, shaper is put into vulcanizing press and carries out sulfur foam, curing temperature 175 DEG C, 4 minutes time, dull and stereotyped pressure 15MPa.As follows according to above method gained sponge sheath performance:
| Sequence number | Test event | Unit | Measured value |
| 1 | Density | g/cm 3 | 0.22 |
| 2 | Hot strength | MPa | 2.1 |
| 3 | Percentage elongation | % | 340 |
All satisfactory EPDM mold pressing sandwich rubber and special-shaped sponge sheath can be prepared by the composition and engineering condition of above-described embodiment.
Claims (2)
1. a preparation method for EPDM mold pressing sponge rubber, is characterized in that step is as follows:
1) heat refining
By the temperature control of mill roller at 70 DEG C ~ 80 DEG C, EPDM rubber on a mill until heat refining 5 ~ 10 times until sizing material is transparent and homogeneous shape;
2) plasticate
By the temperature control of mill roller at 40 DEG C ~ 60 DEG C, sizing material good for heat refining is plasticated 10 ~ 15 times on a mill until until sizing material is transparent and homogeneous shape;
3) mixing
1. by the temperature control of mill roller at 50 DEG C ~ 70 DEG C, roll spacing is adjusted to 2 ~ 3mm, throws in above-mentioned sizing material of plasticating and forms continuous print bag roller glue;
2. 1/2nd carbon blacks, blowing promotor, promoter premix are slowly added between mill two roller after stirring, left and right cutter, make it dispersion;
3. tune up roll spacing to 3 ~ 4mm, alternately add softening agent and remaining 1/2nd carbon blacks, cutter about when material is mixed into substantially, make it dispersion;
4. after being stirred by blowing agent premix, once add between mill two roller, left and right cutter makes it dispersion, 5 ~ 7 minutes time;
5. roll spacing is adjusted to 1mm, thin-pass 8 ~ 10 times;
6. tune up roll spacing to 2 ~ 4mm, smash refining evenly, lower adhesive tape.
2. adopt EPDM mold pressing sponge rubber that the method for claim 1 prepares to prepare the method for sponge sheath, it is characterized in that the size of sponge adhesive tape according to shaper, crescent moon matrix is longitudinally determined with cutting off the feet cutter, get the die cavity up and down that two panels puts into special-shaped shaper respectively, shaper is put into vulcanizing press and carries out sulfur foam, curing temperature 165 DEG C ~ 175 DEG C, 3 ~ 4 minutes time, dull and stereotyped pressure 10MPa ~ 15MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524071.2A CN103029255B (en) | 2012-12-06 | 2012-12-06 | The preparation method of EPDM mold pressing sponge rubber and the preparation method of special-shaped sponge sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524071.2A CN103029255B (en) | 2012-12-06 | 2012-12-06 | The preparation method of EPDM mold pressing sponge rubber and the preparation method of special-shaped sponge sheath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103029255A CN103029255A (en) | 2013-04-10 |
| CN103029255B true CN103029255B (en) | 2015-10-28 |
Family
ID=48016900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210524071.2A Active CN103029255B (en) | 2012-12-06 | 2012-12-06 | The preparation method of EPDM mold pressing sponge rubber and the preparation method of special-shaped sponge sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103029255B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194162A (en) * | 2014-08-20 | 2014-12-10 | 太仓荣南密封件科技有限公司 | EPDM (ethylene-propylene-diene monomer) rubber for air conditioners and preparation technique thereof |
| CN104262798B (en) * | 2014-09-23 | 2016-07-27 | 太仓荣南密封件科技有限公司 | The application in air conditioning for automobiles of a kind of EPDM platinum sponge bar |
| CN104231454A (en) * | 2014-09-23 | 2014-12-24 | 太仓荣南密封件科技有限公司 | EPDM (Ethylene-Propylene-Diene Monomer) white sponge strip for automobile air conditioner and preparation method of EPDM white sponge strip |
| CN104908191A (en) * | 2015-05-11 | 2015-09-16 | 苏州国泰科技发展有限公司 | Production technology of vehicle door sponge rubber sealing ring with high sealability |
| CN109627608A (en) * | 2018-12-27 | 2019-04-16 | 江阴海达橡塑股份有限公司 | A kind of automobile molding injection sponge rubber sealing strip |
| CN111171585B (en) * | 2020-01-16 | 2022-04-26 | 北京龙苑伟业新材料有限公司 | Microporous high-expansion adhesive tape and preparation method thereof |
| CN111875834A (en) * | 2020-06-29 | 2020-11-03 | 桐乡市洲泉振强塑业有限公司 | Foamed rubber anti-collision strip and production process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134888A (en) * | 2007-08-15 | 2008-03-05 | 安阳市鑫河科技研究院有限责任公司 | Modified EPT rubber packing material and preparation method thereof |
| CN101824189A (en) * | 2010-04-21 | 2010-09-08 | 北京市射线应用研究中心 | Preparation process of ethylene propylene diene rubber foaming materials |
| CN102093644A (en) * | 2010-12-31 | 2011-06-15 | 上海众力汽车部件有限公司 | Ethylene-propylene-diene rubber composition with high comprehensive performance and preparation method thereof |
-
2012
- 2012-12-06 CN CN201210524071.2A patent/CN103029255B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134888A (en) * | 2007-08-15 | 2008-03-05 | 安阳市鑫河科技研究院有限责任公司 | Modified EPT rubber packing material and preparation method thereof |
| CN101824189A (en) * | 2010-04-21 | 2010-09-08 | 北京市射线应用研究中心 | Preparation process of ethylene propylene diene rubber foaming materials |
| CN102093644A (en) * | 2010-12-31 | 2011-06-15 | 上海众力汽车部件有限公司 | Ethylene-propylene-diene rubber composition with high comprehensive performance and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103029255A (en) | 2013-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103029255B (en) | The preparation method of EPDM mold pressing sponge rubber and the preparation method of special-shaped sponge sheath | |
| CN101724172B (en) | Industrial production method for ethylene propylene diene rubber molded sealed cell sponge rubber | |
| CN101633753B (en) | Neoprene closed cell foamed material and preparation method thereof | |
| CN102382406B (en) | Polyvinyl butyral foamed material | |
| CN104804252A (en) | High-strength NBR/PVC foaming material and preparation method thereof | |
| CN103122089B (en) | A kind of polyethylene foam calcium plastic composite materials and its production and use | |
| CN104829887A (en) | Sealing strip material and preparation method thereof | |
| CN103087361A (en) | Blown rubber for thick product and variable temperature mould pressing preparation method thereof | |
| CN104250388A (en) | Flame retardant NBR (nitrile-butadiene rubber)/CPVC (chlorinated polyvinyl chloride) plastic foaming thermal-insulation material composition | |
| CN101608037A (en) | A kind of sponge rubber composition and preparation method thereof | |
| CN102690459A (en) | High-resilience chemical crosslinked polyethylene foam material and preparation method thereof | |
| CN102532754A (en) | Crosslinking type polyvinyl chloride/thermoplastic polyurethane light foaming material and preparation method thereof | |
| CN102020801B (en) | Halogen-free flame-retardant polyethylene foaming plastic and preparation method | |
| CN102532724A (en) | Method for preparing thermoplastic dynamic vulcanized rubber by one-step method | |
| CN104693494A (en) | Foamed rubber and preparation method thereof | |
| CN105175830A (en) | Closed-cell two-step foamed material prepared from styrene butadiene rubber, natural rubber and EVA, and preparation method of closed-cell two-step foamed material | |
| CN107663342A (en) | Sealing strip coats sizing material and its preparation method and door weather strip and its preparation method | |
| CN105566721A (en) | High-temperature-resistant XPE (chemical cross-linked polyethylene) foam and preparation method thereof | |
| CN109320802A (en) | A kind of novel rubber plastic heat-insulating pipe and preparation method thereof | |
| CN105504457A (en) | Anti-static/flame-retardant XPE environment-friendly foam material for vehicle and preparation method of XPE environment-friendly foam material | |
| CN101993567B (en) | Rubber and preparation method thereof | |
| CN105885250A (en) | Production process for ethylene propylene diene monomer microporous base plate and product produced by production process | |
| CN109306127B (en) | Composition for forming rubber-plastic blended foaming material, rubber-plastic blended foaming material and preparation method thereof | |
| CN102942744A (en) | Ethylene-propylene-diene monomer mould pressing abnormal shape sponge sheath rubber composition | |
| KR101588233B1 (en) | Rubber foam insulation with high insulation effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 300270 No. 1703, Ge Wan Road, Zhong Tang Industrial Zone, Binhai New Area, Tianjin Patentee after: Tianjin Peng Ling group Limited by Share Ltd Address before: 300384 No. 1703, Ge Wan Road, Grand Port, Tianjin Patentee before: Tianjin Pengling Rubber Tube Co., Ltd. |