CN1277210A - Method for raising vulcanizing speed of rubber composition - Google Patents
Method for raising vulcanizing speed of rubber composition Download PDFInfo
- Publication number
- CN1277210A CN1277210A CN98120866A CN98120866A CN1277210A CN 1277210 A CN1277210 A CN 1277210A CN 98120866 A CN98120866 A CN 98120866A CN 98120866 A CN98120866 A CN 98120866A CN 1277210 A CN1277210 A CN 1277210A
- Authority
- CN
- China
- Prior art keywords
- rubber
- vulcanization
- copolymer
- isoprene
- salt
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
Abstract
A method is disclosed for increasing the rate of vulcanization of a rubber composition comprising adding to a sulfur vulcanizable rubber a methyl trialkyl ammonium salt of the following formula wherein R1, R2, and R3 are independently alkyl radicals having 8 to 10 carbon atoms and M is selected from the group consisting of Cl, Br, CH3SO4 and HSO4. Addition of a methyl trialkyl ammonium salt of the above formula significantly increases the rate of vulcanization of the rubber.
Description
The present invention relates to the sulfuration of the rubber combination of available sulfur vulcanization.More particularly, the present invention relates to a kind ofly improve the method for vulcanization rate of the rubber of available sulfur vulcanization by adding methyltrialkylammonium salt.
" vulcanization rate " be defined as rubber size take place crosslinked with and the speed of stiffness (sliffness) (modulus) when increasing.When the heating rubber mass, its character is transformed into the toughness resilient material by soft plastics.In this vulcanisation step process, produced crosslinkedly, it has linked the long polymer chain of rubber.More when crosslinked when introducing, the binding that polymer chain can be more firm, and the stiffness of this sizing material or modulus increase, and vulcanization rate is an important curing parameter, because it partly determines the time that vulcanized rubber is required, i.e. " curing time ".In the production of vulcanized rubber article, can save very big expense by shortening curing time.Reach the required curing time of minimum sulfided state by improving vulcanization rate, can reducing.According to above-mentioned, for the curing time that shortens rubber has carried out extensive studies.Therefore, need a kind of improved method, it can improve vulcanization rate but can not bring undesirable performance to sulfuration.
The present invention relates to a kind of method that improves the vulcanization rate of rubber combination, this method is included in the methyltrialkylammonium salt that adds a kind of following formula in the rubber of available sulfur vulcanization:
R wherein
1R
2And R
3Be alkyl independently of one another, and M is selected from CL, Br, CH with 8-10 carbon atom
3SO
4And HSO
4In addition, also disclose a kind of rubber combination of available sulfur vulcanization, it comprises the methyltrialkylammonium salt that contains the undersaturated elastomerics of alkene, sulfur sulfurizing agent, promotor and be selected from following formula.
The present invention relates to of the application of methyltrialkylammonium salt as the activator of the rubber combination of available sulfur vulcanization.Good especially methyltrialkylammonium salt is that the Sherex chemical company of Dublin, Ohio is at trade mark Adogen
464 times and Henkel Corporalion, Minneapolis, Minnesota is at trade mark Aliguot
Methyl three (the C that sell for 336 times
8-C
10) alkyl ammomium chloride.Methyltrialkylammonium salt is commonly referred to phase-transfer catalyst and at United States Patent (USP) 3,992, is described in 432, and this patent is all listed this case in as a reference.
For the ease of operation, this methyltrialkylammonium base can be deposited on the suitable carriers.The example that can be used for carrier of the present invention comprises silica, carbon black, alumina, diatomite, silica gel and Calucium Silicate powder.
As if when methyltrialkylammonium salt and primary accelerator and optional secondary accelerator were used in combination, its use can not influence crosslinked distribution.Yet along with the raising of vulcanization rate, sulphided state or sulphidity increase usually, promptly vulcanize efficient and improve.
The present invention can be used for vulcanizing the rubber of available Sulfur combization or contains the undersaturated elastomerics of alkene.Phrase " rubber or contain the undersaturated elastomerics of alkene " is to be used for comprising natural rubber and its various raw materials and reclaimed rubber form and various synthetic rubber.Representational synthetic polymer is divinyl and homologue thereof and derivative for example the homopolymerization product and the multipolymer of dimethyl butadiene, dimethylbutadiene and pentadiene, as those multipolymers that formed by divinyl or its homologue or derivative and other unsaturated monomer.Wherein, other unsaturated monomer is acetylene class, for example vinylacetylene; Alkene, for example iso-butylene (it and isoprene copolymer generate isoprene-isobutylene rubber); Vinyl compound, for example vinylformic acid, vinyl cyanide (it and polymerizing butadiene generate NBR), methacrylic acid and vinylbenzene, vinylbenzene and butadiene polymer generate SBR, and vinyl ester and various unsaturated aldehydes, ketone and ethers, as propenal, methyl isopropenyl ketone and EVE.Elastomeric specific examples comprises that chloroprene rubber, polyhutadiene (comprising suitable-1), polyisoprene (comprise suitable-1.The 4-polyisoprene), isoprene-isobutylene rubber, 1, the multipolymer of 3-divinyl or isoprene and monomer such as vinylbenzene, vinyl cyanide and methyl methacrylate, and ethylene/propene trimer, be also referred to as ethylene/propylene/diene monomer (EPDM), reach ethylene/propene/Dicyclopentadiene (DCPD) tripolymer in particular.
Be used for activator of the present invention and can add rubber by the technology of any routine, for example in the mill or in Banbury mixer, according to the kind of rubber in the vulcanisable compound and other compound, the amount of methyltrialkylammonium salt can change in very wide scope.Usually, the amount ranges of methyl three alkane ammonium salts is about 0.05-5.0phr, and scope is about 0.1～1.5phr preferably.
The sulfuration of this rubber is carried out under the temperature between about 100 ℃ and 200 ℃ usually.This sulfuration is to carry out under about 110 ℃～180 ℃ temperature preferably.Can use any vulcanization process commonly used, for example in vulcanizing press or vulcanizing mold, heat, with superheated vapo(u)r or warm air or in salt bath, heat.
Except that methyltrialkylammonium salt, in the material of this available sulfur vulcanization, can also add other rubber accelerator.The additive that generally is used for the vulcanization of rubber is for example extender, filler, pigment, softening agent, zinc oxide, stearic acid, oxidation inhibitor and antiozonidate.
This sulfuration is carried out in the presence of the Sulfur sulfur sulfurizing agent.The example of suitable sulfur sulfurizing agent comprises elementary sulfur (free sulphur) or supplies sulfur vulcanization agent, for example curing amine, polymer polysulfide or Sulfur olefin adducts.Sulfur sulfurizing agent is elementary sulfur preferably.
Use promotor to control and vulcanize required time and/or temperature and improve the sulfurized performance.In a specific embodiment, can use single accelerator system, i.e. primary accelerator.In another specific embodiment, in order to activate and improve the sulfurized performance, can use the combination of two or more promotor, it can comprise primary accelerator and secondary accelerator, wherein the consumption of primary accelerator is bigger usually, and the consumption of secondary accelerator is less usually, and it is good that the combination meeting of known these promotor produces the effect that a synergistic effect and what are produced than any promotor of independent use to final performance.In addition, can use slow effect promotor, it is not influenced by normal service temperature can and can produce gratifying sulfuration under common curing temperature.The promotor that can be used for adequate types of the present invention is amine, disulfides, guanidine class, Thiourea, thiazoles, thiurams, sulfinylamines, dithiocarbamate(s) and xanthogenic acid salt.
Claims (8)
1. method that improves the vulcanization rate of rubber combination, it is included in the methyltrialkylammonium salt that adds a kind of following formula in the rubber of available sulfur vulcanization:
R wherein
1, R
2And R
3Be alkyl independently of one another, and M is selected from Cl, Br, CH with 8-10 carbon atom
3SO
4And HSO
4
2. method according to claim 1 wherein adds the described methyltrialkylammonium salt of 0.05phr at least.
3. method according to claim 2, wherein the amount of the methyltrialkylammonium salt of Jia Ruing is about 0.05-5.0phr.
4. method according to claim 1, wherein M is Cl or CH
3SO
4
5. method according to claim 4, wherein M is Cl.
6. method according to claim 4, wherein M is CH
3SO
4
7. method according to claim 2, the rubber of wherein said available sulfur vulcanization comprise and contain the undersaturated elastomerics of alkene and be selected from natural rubber, chloroprene rubber, polyisoprene, isoprene-isobutylene rubber, polyhutadiene, styrene-butadiene copolymer, methyl methacrylate butadi ene copolymer, isoprene-styrol copolymer, methyl methacrylate-isoprene copolymer, vinyl cyanide-isoprene copolymer, acrylonitrile butadiene copolymer, EPDM or their mixture.
8. method according to claim 7, the rubber of wherein said available sulfur vulcanization are selected from natural rubber, SBR, polyisoprene or their mixture.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29079688A | 1988-12-28 | 1988-12-28 | |
| US290,796 | 1988-12-28 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89106900A Division CN1062574C (en) | 1988-12-28 | 1989-12-28 | Vulcanizate activator system for rubber compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1277210A true CN1277210A (en) | 2000-12-20 |
Family
ID=23117606
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89106900A Expired - Fee Related CN1062574C (en) | 1988-12-28 | 1989-12-28 | Vulcanizate activator system for rubber compositions |
| CN98120866A Pending CN1277210A (en) | 1988-12-28 | 1998-09-28 | Method for raising vulcanizing speed of rubber composition |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89106900A Expired - Fee Related CN1062574C (en) | 1988-12-28 | 1989-12-28 | Vulcanizate activator system for rubber compositions |
Country Status (14)
| Country | Link |
|---|---|
| KR (1) | KR900009701A (en) |
| CN (2) | CN1062574C (en) |
| AR (1) | AR247219A1 (en) |
| AT (1) | ATE105001T1 (en) |
| BR (1) | BR8906667A (en) |
| CA (1) | CA1340497C (en) |
| DK (1) | DK668089A (en) |
| FI (1) | FI99134C (en) |
| IE (1) | IE66562B1 (en) |
| MA (1) | MA21696A1 (en) |
| MY (1) | MY105906A (en) |
| NO (1) | NO179951C (en) |
| PT (1) | PT92754B (en) |
| ZA (1) | ZA899579B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20110525A1 (en) * | 2011-06-15 | 2012-12-16 | Bridgestone Corp | METHOD OF VULCANIZATION WITH MICROWAVE OF RUBBER COMPOUNDS |
| KR101411114B1 (en) * | 2012-08-29 | 2014-06-25 | 유태우 | Pad and it's making method for acupuncture of a imagenation cure |
| CN104961982A (en) * | 2015-07-28 | 2015-10-07 | 太仓市晨洲塑业有限公司 | Modified butyl rubber |
| CN114854057A (en) * | 2022-04-26 | 2022-08-05 | 濮阳林氏医疗制品有限公司 | Low-temperature vulcanization package group and preparation method and application thereof |
-
1989
- 1989-08-28 CA CA000609570A patent/CA1340497C/en not_active Expired - Fee Related
- 1989-12-14 MA MA21956A patent/MA21696A1/en unknown
- 1989-12-14 ZA ZA899579A patent/ZA899579B/en unknown
- 1989-12-18 FI FI896047A patent/FI99134C/en not_active IP Right Cessation
- 1989-12-21 AR AR89315780A patent/AR247219A1/en active
- 1989-12-21 BR BR898906667A patent/BR8906667A/en not_active IP Right Cessation
- 1989-12-22 AT AT8989630234T patent/ATE105001T1/en not_active IP Right Cessation
- 1989-12-22 NO NO895244A patent/NO179951C/en not_active IP Right Cessation
- 1989-12-27 KR KR1019890019688A patent/KR900009701A/en not_active Application Discontinuation
- 1989-12-27 MY MYPI89001864A patent/MY105906A/en unknown
- 1989-12-27 DK DK668089A patent/DK668089A/en not_active Application Discontinuation
- 1989-12-28 CN CN89106900A patent/CN1062574C/en not_active Expired - Fee Related
- 1989-12-28 PT PT92754A patent/PT92754B/en not_active IP Right Cessation
- 1989-12-28 IE IE419189A patent/IE66562B1/en not_active IP Right Cessation
-
1998
- 1998-09-28 CN CN98120866A patent/CN1277210A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ZA899579B (en) | 1990-09-26 |
| FI896047A0 (en) | 1989-12-18 |
| NO895244L (en) | 1990-06-29 |
| FI99134C (en) | 1997-10-10 |
| PT92754A (en) | 1990-06-29 |
| IE894191L (en) | 1990-06-28 |
| CA1340497C (en) | 1999-04-13 |
| NO895244D0 (en) | 1989-12-22 |
| MA21696A1 (en) | 1990-07-01 |
| CN1043726A (en) | 1990-07-11 |
| MY105906A (en) | 1995-02-28 |
| DK668089A (en) | 1990-06-29 |
| BR8906667A (en) | 1990-09-11 |
| KR900009701A (en) | 1990-07-05 |
| FI99134B (en) | 1997-06-30 |
| DK668089D0 (en) | 1989-12-27 |
| NO179951B (en) | 1996-10-07 |
| PT92754B (en) | 1995-11-30 |
| AR247219A1 (en) | 1994-11-30 |
| CN1062574C (en) | 2001-02-28 |
| IE66562B1 (en) | 1996-01-24 |
| NO179951C (en) | 1997-01-15 |
| ATE105001T1 (en) | 1994-05-15 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |