CN102775658A - Chloroprene rubber/polyvinyl chloride co-precipitation rubber and preparation method thereof - Google Patents
Chloroprene rubber/polyvinyl chloride co-precipitation rubber and preparation method thereof Download PDFInfo
- Publication number
- CN102775658A CN102775658A CN2012102727026A CN201210272702A CN102775658A CN 102775658 A CN102775658 A CN 102775658A CN 2012102727026 A CN2012102727026 A CN 2012102727026A CN 201210272702 A CN201210272702 A CN 201210272702A CN 102775658 A CN102775658 A CN 102775658A
- Authority
- CN
- China
- Prior art keywords
- glue
- heavy
- altogether
- emulsion
- rubber
- 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.)
- Pending
Links
- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 21
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 21
- 229920001084 poly(chloroprene) Polymers 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims description 8
- 229920001971 elastomer Polymers 0.000 title abstract description 10
- 238000000975 co-precipitation Methods 0.000 title abstract 3
- 229920000126 latex Polymers 0.000 claims abstract description 14
- 239000004816 latex Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims description 46
- 239000000839 emulsion Substances 0.000 claims description 44
- 238000002156 mixing Methods 0.000 claims description 28
- 239000007787 solid Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000005354 coacervation Methods 0.000 claims description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000016615 flocculation Effects 0.000 claims description 4
- 238000005189 flocculation Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- 238000005054 agglomeration Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 2
- 229960000583 acetic acid Drugs 0.000 claims description 2
- 239000012362 glacial acetic acid Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 241000628997 Flos Species 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 4
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 abstract description 3
- 238000007385 chemical modification Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000010074 rubber mixing Methods 0.000 abstract 1
- 239000000571 coke Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PCPYTNCQOSFKGG-UHFFFAOYSA-N 1-chlorobuta-1,3-diene Chemical compound ClC=CC=C PCPYTNCQOSFKGG-UHFFFAOYSA-N 0.000 description 1
- 229920002449 FKM Polymers 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002464 physical blending Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to a cloroprene rubber/polyvinyl chloride co-precipitation rubber. The cloroprene rubber/polyvinyl chloride co-precipitation rubber comprises the following raw materials in percentage by weight: 99%-60% of chloroprene rubber latex and 1%-40% of polyvinyl chloride latex. Chemical modification of chloroprene rubber provided by the invention is performed at the synthesis stage of chloroprene rubber, thereby changing the chloroprene rubber performance and improving scorching performance, roll-sticking performance, dispersion performance, abrasion-resistant performance and the like. The invention solves processing problems which cannot be solved by the traditional rubber mixing process and expands the scope of application of the product.
Description
Technical field
The invention belongs to the modified rubber field, relate to the in-situ blending coacervation of emulsion, especially a kind of X 050/SE is heavy glue and preparation method thereof altogether.
Background technology
X 050 (CR) is a kind of half universal viton, claims neoprene again, and newly flat rubber is that chloroprene (being chlorbutadiene) carries out the elastomerics that α-polymerization generates for main raw material.It is synthetic that present X 050 is emulsion polymerisation process; X 050 is in the course of processing; Early stage incipient scorch, processing roll banding, bad dispersibility, temperature sensitivity height appear; The goods lower temperature resistance is poor, wear no resistance etc., and its performance often can't satisfy industrial requirement, thus in process of production; The manufacturer often solves this difficult problem through substitute or modified rubber, and the multipolymer that especially obtains excellent property through X 050 and SE (PVC) synthesis modification is praised highly by numerous producer.
But X 050 and SE have the inconsistent characteristics of thermodynamics under solid; Therefore adopt the high-temperature machinery method to be difficult to together with two kinds of material mixing; And disperseing inhomogeneous unstable product quality performance not reach requirement, this also makes the use of existing X 050 and polyvinyl chloride copolymer receive limitation.
Summary of the invention
The objective of the invention is to overcome the weak point of prior art, X 050/SE that a kind of higher industrial performance, production technique be convenient to operate heavy glue and preparation method thereof altogether is provided.
The objective of the invention is to realize like this:
The heavy altogether glue of a kind of X 050/SE, it is characterized in that: its feed composition and part by weight are:
Neoprene latex 99%～60%;
Polyvinyl chloride emulsion 1%～40%.
And said neoprene latex total solid substance matter massfraction is 10%～40%.
And said polyvinyl chloride emulsion total solid substance matter massfraction is 10%～40%.
A kind of X 050/SE is the preparation method of heavy glue altogether, the steps include:
⑴ blending: under the room temperature, neoprene latex and polyvinyl chloride emulsion are dropped into reaction kettle according to the ratio of 60～99:1 ~ 40, mixing and stirring, rotating speed is 20～40 rev/mins, obtains mixed emulsion;
⑵ cohesion: under the room temperature, add flocculation agent continuously to mixed emulsion, after treating to finish according to cohesion, wash, extrude, cut into slices, 60～140 ℃ of oven dry obtain the heavy altogether glue of X 050/SE;
⑶ mixing: place mill mixing in the heavy altogether glue of X 050/SE, 70～140 ℃ of temperature are added the auxiliary agent that contains its corresponding active element according to the performance requriements of the heavy glue altogether of various uses.
And the described flocculation agent of step ⑵ is that massfraction is any one of Pottasium Hydroxide of 1%～10% sodium chloride solution, 1%～10% liquor alumini chloridi, 1%～10% Klorvess Liquid, 1%～10% calcium chloride solution, 5% hydrochloric acid, 5% sulfuric acid, 5% oxalic acid, 5% Glacial acetic acid min. 99.5,1%～20% sodium hydroxide solution and 1%～20%.
And the described coacervation of step ⑵ can also be to 0～15 ℃ of mixed emulsion temperature control, regulates pH 6～8; Mixed emulsion is put in the freeze agglomeration cylinder, and temperature remains between-5～-20 ℃, constantly in mixed emulsion, rotates; Film attached to cylinder surface is agglomerated product; Take out, wash, extrude, cut into slices, 60～140 ℃ of oven dry obtain the heavy altogether glue of X 050/SE.
And the described coacervation of step ⑵ can also be to 20～30 ℃ of mixed emulsion temperature controls, uses whizzer to the capable centrifuge dehydration of mixed emulsion; 800～1500 rev/mins of rotating speeds; Be agglomerated product after the dehydration, treat according to the cohesion finish after, wash, extrude, cut into slices; 60～140 ℃ of oven dry obtain the heavy altogether glue of X 050/SE.
Advantage of the present invention and positively effect are:
1, the present invention is through carrying out chemical modification at the X 050 synthesis phase to X 050; Changed the X 050 performance thus; The coke burning performance, roll banding performance, dispersing property of X 050, performance such as wear-resisting have been improved; Solve the processing problems that traditional rubber mixing-milling technique cann't be solved, expanded the scope of application of product.
2, this patent is X 050 water miscible liquid and the blend of PVC water miscible liquid that utilizes synthesis phase; Utilize special in-situ blending cohesion process to generate the heavy altogether glue of novel X 050/SE; Again through the mixing coagel that obtains excellent performance, make product have the commercial performance that traditional X 050 and/or its multipolymer do not possess thus.
Embodiment
Below in conjunction with embodiment, the present invention is further specified, following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.
Embodiment 1
The heavy altogether glue of a kind of X 050/SE, its feed composition and weight are:
X 050 (CR) emulsion (total solid substance matter massfraction is 30%) 80kg;
SE (PVC) emulsion (total solid substance matter massfraction is 30%) 20kg.
This X 050/SE preparing method's step of heavy glue altogether is:
⑴ blending: under the room temperature, neoprene latex and polyvinyl chloride emulsion are dropped into reaction kettle, mixing and stirring, rotating speed is 20～40 rev/mins, obtains mixed emulsion;
⑵ cohesion: under the room temperature, add 5% sodium chloride solution continuously to mixed emulsion, after treating to finish according to cohesion, wash, extrude, cut into slices, 60～140 ℃ of oven dry obtain the heavy altogether glue of X 050/SE;
⑶ mixing: place mill mixing in the heavy altogether glue of X 050/SE, 70～140 ℃ of temperature are added the auxiliary agent that contains its corresponding active element according to the performance requriements of the heavy glue altogether of various uses.
Embodiment 2
The heavy altogether glue of a kind of X 050/SE, its feed composition and weight are:
Neoprene latex (total solid substance matter massfraction is 30%) 90kg;
Polyvinyl chloride emulsion (total solid substance matter massfraction is 30%) 10kg.
This X 050/SE preparing method's step of heavy glue altogether is:
⑴ blending: under the room temperature, neoprene latex and polyvinyl chloride emulsion are dropped into reaction kettle, mixing and stirring, rotating speed is 20～40 rev/mins, obtains mixed emulsion;
⑵ cohesion: to 0～15 ℃ of mixed emulsion temperature control, regulate pH, mixed emulsion is put in the freeze agglomeration cylinder 6～8; Temperature remains between-5～-20 ℃; Constantly in mixed emulsion, rotate, be agglomerated product, take out, wash, extrude, cut into slices attached to the film of cylinder surface; 60～140 ℃ of oven dry obtain the heavy altogether glue 2 of X 050/SE;
⑶ mixing: place mill mixing in the heavy altogether glue of X 050/SE, 70～140 ℃ of temperature are added the auxiliary agent that contains its corresponding active element according to the performance requriements of the heavy glue altogether of various uses.
Embodiment 3
The heavy altogether glue of a kind of X 050/SE, its feed composition and weight are:
Neoprene latex (total solid substance matter massfraction is 20%) 99kg;
Polyvinyl chloride emulsion (total solid substance matter massfraction is 40%) 1kg.
This X 050/SE preparing method's step of heavy glue altogether is:
⑴ blending: under the room temperature, neoprene latex and polyvinyl chloride emulsion are dropped into reaction kettle, mixing and stirring, rotating speed is 20～40 rev/mins, obtains mixed emulsion;
⑵ cohesion:, use whizzer to the capable centrifuge dehydration of mixed emulsion, 800～1500 rev/mins of rotating speeds to 20～30 ℃ of mixed emulsion temperature controls; Be agglomerated product after the dehydration, treat according to the cohesion finish after, wash, extrude, cut into slices; 60～140 ℃ of oven dry obtain the heavy altogether glue 3 of X 050/SE;
⑶ mixing: place mill mixing in the heavy altogether glue of X 050/SE, 70～140 ℃ of temperature are added the auxiliary agent that contains its corresponding active element according to the performance requriements of the heavy glue altogether of various uses.
Embodiment 1
The heavy altogether glue of a kind of X 050/SE, its feed composition and weight are:
X 050 (CR) emulsion (total solid substance matter massfraction is 20%) 60kg;
SE (PVC) emulsion (total solid substance matter massfraction is 40%) 40kg.
This X 050/SE preparing method's step of heavy glue altogether is:
⑴ blending: under the room temperature, neoprene latex and polyvinyl chloride emulsion are dropped into reaction kettle, mixing and stirring, rotating speed is 20～40 rev/mins, obtains mixed emulsion;
⑵ cohesion: under the room temperature, add 5% sodium chloride solution continuously to mixed emulsion, after treating to finish according to cohesion, wash, extrude, cut into slices, 60～140 ℃ of oven dry obtain the heavy altogether glue 4 of X 050/SE;
⑶ mixing: place mill mixing in the heavy altogether glue of X 050/SE, 70～140 ℃ of temperature are added the auxiliary agent that contains its corresponding active element according to the performance requriements of the heavy glue altogether of various uses.
Simultaneous test:
X 050 and the heavy altogether glue 1 and 2 of SE physical blending thing, pure X 050, embodiment 1 and embodiment 2 resulting X 050/SE are carried out the physicals detection respectively, and its comparing result is following:
The rubber physicals detects contrast table
Through contrast; The heavy altogether glue of X 050/SE through the present invention obtains is compared with pure X 050; Its coke burning performance, roll banding performance, dispersing property, performance such as wear-resisting have all had obvious lifting; And even X 050 mixes with the SE simple physics, its performance also is starkly lower than the heavy altogether glue of X 050/SE.
Claims (7)
1. the heavy altogether glue of an X 050/SE, it is characterized in that: its feed composition and part by weight are:
Neoprene latex 99%～60%;
Polyvinyl chloride emulsion 1%～40%.
2. the heavy altogether glue of X 050/SE according to claim 1, it is characterized in that: said neoprene latex total solid substance matter massfraction is 10%～40%.
3. the heavy altogether glue of X 050/SE according to claim 1, it is characterized in that: said polyvinyl chloride emulsion total solid substance matter massfraction is 10%～40%.
4. one kind prepares X 050/SE as claimed in claim 1 method of heavy glue altogether, it is characterized in that: the steps include:
⑴ blending: under the room temperature, neoprene latex and polyvinyl chloride emulsion are dropped into reaction kettle according to the ratio of 60～99:1 ~ 40, mixing and stirring, rotating speed is 20～40 rev/mins, obtains mixed emulsion;
⑵ cohesion: under the room temperature, add flocculation agent continuously to mixed emulsion, after emulsion to be mixed all becomes floss, wash, extrude, cut into slices, 60～140 ℃ of oven dry obtain the heavy altogether glue of X 050/SE;
⑶ mixing: place mill mixing in the heavy altogether glue of X 050/SE, 70～140 ℃ of temperature are added the auxiliary agent that contains its corresponding active element according to the performance requriements of the heavy glue altogether of various uses.
5. the preparation method of the heavy altogether glue of described X 050/SE according to claim 4 is characterized in that: the described flocculation agent of step ⑵ is that massfraction is any one of Pottasium Hydroxide of 1%～10% sodium chloride solution, 1%～10% liquor alumini chloridi, 1%～10% Klorvess Liquid, 1%～10% calcium chloride solution, 5% hydrochloric acid, 5% sulfuric acid, 5% oxalic acid, 5% Glacial acetic acid min. 99.5,1%～20% sodium hydroxide solution and 1%～20%.
6. described X 050/SE according to claim 4 is the preparation method of heavy glue altogether; It is characterized in that: the described coacervation of step ⑵ can also be to 0～15 ℃ of mixed emulsion temperature control, regulates pH 6～8, and mixed emulsion is put in the freeze agglomeration cylinder; Temperature remains between-5～-20 ℃; Constantly in mixed emulsion, rotate, be agglomerated product, take out, wash, extrude, cut into slices attached to the film of cylinder surface; 60～140 ℃ of oven dry obtain the heavy altogether glue of X 050/SE.
7. described X 050/SE according to claim 4 is the preparation method of heavy glue altogether, and it is characterized in that: the described coacervation of step ⑵ can also be to 20～30 ℃ of mixed emulsion temperature controls, uses whizzer to the capable centrifuge dehydration of mixed emulsion; 800～1500 rev/mins of rotating speeds; Be agglomerated product after the dehydration, treat according to the cohesion finish after, wash, extrude, cut into slices; 60～140 ℃ of oven dry obtain the heavy altogether glue of X 050/SE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102727026A CN102775658A (en) | 2012-08-01 | 2012-08-01 | Chloroprene rubber/polyvinyl chloride co-precipitation rubber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102727026A CN102775658A (en) | 2012-08-01 | 2012-08-01 | Chloroprene rubber/polyvinyl chloride co-precipitation rubber and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102775658A true CN102775658A (en) | 2012-11-14 |
Family
ID=47120781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102727026A Pending CN102775658A (en) | 2012-08-01 | 2012-08-01 | Chloroprene rubber/polyvinyl chloride co-precipitation rubber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102775658A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016177327A1 (en) * | 2015-05-04 | 2016-11-10 | 电化株式会社 | Chloroprene rubber composition, vulcanized moulded body and use thereof |
| CN106832625A (en) * | 2017-02-21 | 2017-06-13 | 上海蓝昊电气江苏有限公司 | A kind of high resiliency chlorinated polyethylene sheath material |
-
2012
- 2012-08-01 CN CN2012102727026A patent/CN102775658A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 孟宪德等: "CR/PVC共混物的相容性与形态结构的研究", 《合成橡胶工业》 * |
| 青岛海晶化工集团有限公司等: "聚氯乙烯/氯丁橡胶热塑性弹性体", 《中国科技项目创新成果鉴定意见数据库（知网版）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016177327A1 (en) * | 2015-05-04 | 2016-11-10 | 电化株式会社 | Chloroprene rubber composition, vulcanized moulded body and use thereof |
| CN107531952A (en) * | 2015-05-04 | 2018-01-02 | 电化株式会社 | Chloroprene rubber composition, sulfidization molding body and application thereof |
| CN106832625A (en) * | 2017-02-21 | 2017-06-13 | 上海蓝昊电气江苏有限公司 | A kind of high resiliency chlorinated polyethylene sheath material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106084332B (en) | The preparation method and process units of the pre-dispersed rubber master batch of graphene microchip | |
| CN101824165A (en) | Granular cold water soluble porous starch | |
| CN100427398C (en) | The preparation method of nanometer calcium carbonate | |
| CN102775658A (en) | Chloroprene rubber/polyvinyl chloride co-precipitation rubber and preparation method thereof | |
| CN101570588A (en) | Preparation method of bimodal distribution ABS | |
| CN107163453A (en) | A kind of PVC and preparation method thereof | |
| Ding et al. | Liquid–liquid equilibrium compositions and global phase behavior for the lignin–acetic acid–water system at 70 and 95 C | |
| CN101649020A (en) | Method for preparing polyacrylic ester foaming regulation agent with multi-layer nuclear shell structure | |
| CN106867144A (en) | A kind of modified hydrotalcite for PVC heat stabilizer and preparation method thereof | |
| CN103788414A (en) | Preparation method of high-temperature stable coated sulfur | |
| CN106521976B (en) | A kind of ecological PVC decorative artificial leather | |
| CN102898572A (en) | Preparation method of high-crosslinking monodisperse poly divinylbenzene microspheres | |
| CN104059392A (en) | Porous material modified calcium carbonate and preparation method thereof | |
| CN102220115A (en) | Filtrate reducer for oil well cement and preparation method thereof | |
| CN105566709A (en) | Neoprene/polyvinyl chloride co-precipitation rubber and preparation method thereof | |
| Zhou et al. | Synthesis and evaluation of sulphonated acetone–formaldehyde resin applied as dispersant of coal–water slurry | |
| CN106867029B (en) | Modification magnesium zinc-aluminum hydrotalcite and preparation method thereof for PVC heat stabilizer | |
| CN106867030A (en) | A kind of composite modified hydrotalcite for PVC heat stabilizer and preparation method thereof | |
| CN106893037B (en) | Coating paper primary coat high bonding styrene-acrylic emulsion and preparation method thereof | |
| CN103724736A (en) | In-situ organic modified-pre-swelled preparation method of rubber/clay nano composite material | |
| CN101830993A (en) | Cation modified starch and preparation method thereof | |
| CN104529744B (en) | A kind of magnesium stearate preparation method | |
| CN106317456A (en) | Method for preparing rubber master batch from lignin-dispersed calcium sulfate | |
| CN106046327B (en) | The curing agent and its synthesis technique of mixed amine system epoxy primary coat are modified using Ergol leftover bits and pieces | |
| CN106867282A (en) | Modified calcium magnalium hydrotalcite for PVC heat stabilizer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |