CN1222172A - Thermoplastic elastomer - Google Patents
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- CN1222172A CN1222172A CN 97195480 CN97195480A CN1222172A CN 1222172 A CN1222172 A CN 1222172A CN 97195480 CN97195480 CN 97195480 CN 97195480 A CN97195480 A CN 97195480A CN 1222172 A CN1222172 A CN 1222172A
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Abstract
The invention relates to a thermoplastic elastomer comprising a blend of a rubber and a thermoplastic resin, the rubber being at least partially cured. The invention is characterized in that the thermoplastic elastomer comprises: A) a thermoplastic resin, B) an amorphous polyolefin, selected from an amorphous alpha -olefin homopolymer, in which the alpha -olefin has 3-20 C-atoms, and an amorphous alpha -olefin copolymer, based on ethylene and a alpha -olefin having 3-20 C-atoms, and C) an at least partially cured rubber, wherein the ratio of component (B) to components (A + B) is between 15 and 75 wt.%, the component C is present between 25 and 90 wt.% (based on (A + B + C)), and wherein the amorphous polyolefin (component B) is uncured.
Description
The present invention relates to contain the thermoplastic and high-elastic of the blend of rubber and thermoplastic resin, described rubber is partial vulcanization at least.
This product is from US-A-4, and 130,535 know, sulfuration thermoplastic elastomerics (or Thermoplastic Vulcanizate in this patent.TPV) make from polyolefin resin and olefinic rubber.
Partial vulcanization attitude at least in this thermoplastic and high-elastic is to stand sulfuration process by the blend that makes this rubber or unvulcanized rubber and thermoplastic resin to make.This technology can be static state or dynamic, and can finish as superoxide or resol by using known vulcanizing agent.
A shortcoming of this thermoplastic and high-elastic is under the identical situation of rubber content, is not difficult to reduce if do not sacrifice the hardness of this product of its performance.Acquisition is to use styrene block copolymer than a kind of possible method of the thermoplastic and high-elastic of soft, can use separately or be used in combination with TPV.Yet this composition costs an arm and a leg, so its use is restricted.Another kind of alternate method is to add the extending oil that is used to reduce hardness, and still, this moment, other physicals (as tensile strength) can worsen except the hardness reduction is less.Adding extending oil also can cause the product mist degree to increase (being that composition comes out from surface evaporation) and oily oozing out (be oil move to product surface make product have the oily outward appearance).
Therefore need a kind of thermoplastic and high-elastic that does not have these defectives.
The invention is characterized in that this thermoplastic and high-elastic comprises:
A) a kind of thermoplastic resin,
B) a kind of amorphous polyolefine is selected from the amorphous alpha-olefin homo, and wherein this alpha-olefin contains 3-20 carbon atom and based on ethene with contain the amorphous alpha-olefin copolymer of the alpha-olefin of 3-20 carbon atom, and
C) a kind of rubber of partial vulcanization at least,
Wherein the ratio of B component and component (A+B) is between 15-75% (weight), and the content of component C is 25-90% (weight) (is benchmark in (A+B+C)), and wherein this amorphous polyolefin component B is unvulcanized.
The existence of B component is a key factor for obtaining effect of the present invention.This component is unvulcanized, and must keep this state in the process of further processing.
The present invention is specially adapted to wish the rubber content high occasion of (this also is equivalent to the soft product).At EP-A-109, point out that too high rubber content can cause scrap rubber formation not in 375; In described open source literature, this problem (it is said) overcomes by two step sulfuration methods, and wherein a part that only adds in whole rubber in each step is vulcanized.And thermoplastic and high-elastic of the present invention adopts single stage method to obtain.
The present invention also provides Shore hardness to be lower than the thermoplastic and high-elastic of 35A.This is more wonderful because there is one piece of document (seeing " plastics technology ", in January, 1996 number, the 47th page) to point out, the Thermoplastic Vulcanizate of Shore hardness 35A be the getable rubber of soft grade.
The main component of thermoplastic and high-elastic of the present invention will be described below.
A) thermoplastic resin
This thermoplastic resin can be in 100-350 ℃ of temperature range its performance classes like any polymkeric substance of thermoplastics; What take care is, processing temperature will enough be lower than (promptly preparing or the temperature when using this thermoplastic and high-elastic) decomposition temperature of this resin.The example of this resin is a thermoplastic resin, resembles polyester, nylon, polycarbonate, styrene/acrylonitrile copolymer and preferred thermoplastic polyolefin resin.Under latter event, preferably polyethylene and homopolymer polypropylene, and contain the multipolymer of the another kind of alpha-olefin of 20% (weight) at the most.The degree of crystallinity of this thermoplastic resin (measuring with DSC (dsc)) is at least 25%.
B. amorphous polyolefine
The amorphous polyolefine is homopolymer or the multipolymer with alpha-olefin of random structure, and it derives from isotaxy or syndyotactic crystalline polyolefin structure.Usually, the degree of crystallinity of these products (measuring with the DSC method) is lower than 10%; Preferred degree of crystallinity is lower than 3%.
Alpha-olefin in the equal polyolefine of amorphous can be any alpha-olefin that contains 3-20 carbon atom; Preferred propylene is as alpha-olefin; Promptly as B component) preferably use amorphous polypropylene as the equal polyolefine of amorphous.Be only second to or replace the equal polyolefine of amorphous, B component also can be a kind of be the random of comonomer or amorphous alpha-olefin copolymer based on ethene and another kind of high alpha-olefin.The comonomer that is suitable for is the comonomer that contains 3-20 carbon atom.
In order to produce effect in thermoplastic and high-elastic of the present invention, B component must have at least 20,000 number-average molecular weight Mn (using SEC-DV) (size exclusion chromatography-differential viscosimetry method for combined use is measured).Better be that the Mn of B component is at least 25,000.
B component must be present in this thermoplastic and high-elastic with (basically) unvulcanised form.In B component is under the vulcanizable situation, avoid producing this effect.When the vulcanizing agent of component C also can make B component sulfuration (for example resemble superoxide as vulcanizing agent), be exactly this situation particularly.In this case, and this is when being a part of technology of the such a kind of TPV of preparation, and B component adds after the sulfuration process of this rubber is finished more fortunately again.
C. vulcanized rubber
The rubber that is present in the thermoplastic and high-elastic of the present invention can be any natural rubber or synthetic rubber, and these rubber can be used known vulcanizing agent, for example based on the vulcanizing agent of superoxide, resol, maleimide or siloxanes.According to the present invention, suitable rubber is acrylic rubber, isoprene-isobutylene rubber, halogenated rubber (resembling bromination and chlorination isobutene-synthetic polyisoprene), styrene butadiene rubbers, butadiene-styrene-vinylpyridine rubber, paracril, natural rubber, urethanes, silicon rubber, thiorubber, fluorine carbonyl rubber, ethylene/alpha-olefin (diene) rubber (EA (D) M-rubber), polyisoprene, epichloro hydrin rubber, chlorinatedpolyethylene, chloroprene rubber, chlorosulfonated polyethylene.Preferably ethylene/alpha-olefin/diene terpolymer (EADM) rubber and isoprene-isobutylene rubber.EADM contains as the second monomeric alpha-olefin, and it can be propylene, butene-1, amylene-1, hexene-1, octene-1 etc., or its branched isomer, as 4-methylpentene-1, and also has vinylbenzene, alpha-methyl styrene etc.The mixture of alpha-olefin also is suitable for.As alpha-olefin preferably propylene and/or butene-1.Propylene more preferably; Resulting terpolymer is ethylene/propylene/diene terpolymers (EPDM).
The 3rd monomer in this EADM or EPDM can be any monomer that is suitable for usually, for example hexadiene 1,4, Dicyclopentadiene (DCPD) or an ethylidene norbornene in this rubber.As the 3rd monomer ethylidene norbornene preferably.
Isoprene-isobutylene rubber can be a basal component of thermoplastic and high-elastic of the present invention, and it is a kind of amorphous copolymer of iso-butylene and isoprene, or a kind of amorphous terpolymer of iso-butylene, isoprene and a kind of divinyl aromatic monomer." isoprene-isobutylene rubber " this term also comprises the halogenated form of above-mentioned multipolymer and terpolymer.Thermoplastic and high-elastic based on isoprene-isobutylene rubber is disclosed in for example US-A-4, in 130,534 and EP-A-376,227.
This thermoplastic and high-elastic contains 25-90% (weight) rubber (component C) by per 100 parts of components (A+B+C), better contains 40-75% (weight).
By per 100 parts of components (A+B+C), the content of thermoplastic resin (component A) is preferably 5-25% (weight).Have been found that thermoplastic resin content low like this in the thermoplastic and high-elastic is just owing to exist B component just to reach.If there is not the existence of B component, sulfuration back product will become and can not process.
The relative quantity of B component and component (A+B) is generally 15-75% (weight); 20-70% (weight) more preferably.
Component A and B can form the independent component of thermoplastic and high-elastic of the present invention, but also can be the constituents of the blend for preparing in polymerization process.A kind of blend so also can be described as the amorphous elastic olefin polymers, is disclosed in EP-A-475, in 306.This product is for example to be made by Rexene, and its trade mark is Rexflex, and sells as flexible polyolefine.
Rubber in the thermoplastic and high-elastic (component C) is partial vulcanization at least.A kind of method of measuring sulphidity is to measure the amount of the rubber that can extract from TPV when making extraction agent with ebullient dimethylbenzene.This method can be referring to for example United States Patent (USP) 4,311,628.
According to the method, the rubber in the thermoplastic and high-elastic of the present invention (component C) vulcanizes usually to not being higher than 50%, preferably is not higher than 15%, and the rubber more preferably no higher than 5% can be extracted to the degree in the ebullient dimethylbenzene.
This thermoplastic and high-elastic can contain normally used other additive and filler, for example carbon black, pigment, fire retardant, UV light stabilizing agent, ultraviolet absorbers, processing aid, increment wet goods in the product of these types.
Under component A and B each other can not obviously compatible situations, several methods of improving its consistency are arranged.A kind of possibility is by means of the functional group that can improve these two kinds of component compatibilities of A and B component A and/or B component to be carried out modification.For example working as the A component is polar resin, during as nylon, by introduce polar functionality in B component, for example will have the acid anhydride-grafted on B component of amine functional group, and B component is carried out modification, just can finish this modification.
Another kind of alternative method is to use and is applicable to the independent component that makes component A compatible with B.These compositions (or claiming compatilizer) are well-known in the present technique, and the technician knows the standard that is suitable in this case.
The technology of preparation thermoplastic and high-elastic can be the technology of the blend of any rubber that can obtain partial vulcanization at least and thermoplastic resin.Preferred technology is the technology by dynamic vulcanization (mixing and the sulfurized technology that are rubber and thermoplastic resin are carried out in a processing step simultaneously) preparation blend.The technician knows, will avoid serious scorching when hybrid technique is not finished.These can be with reference to above-mentioned United States Patent (USP) ' 628 and ' 535.The employed equipment of technology of the present invention can be any mixing facilities that is used for the polymkeric substance blending.Can use intermittently equipment (as Banbury mixer); The equipment of operate continuously preferably is as Bitruder.Must be noted that all the components all will fully mix.
In technology of the present invention, advantageously earlier with component A) and B) carry out premix, and then add component C).All can be used to make under the component C sulfurized vulcanizing agent sulfurized situation in B component and C, when preparation thermoplastic and high-elastic of the present invention, must after (dynamically) sulfuration of finishing component C or component A+C, could be added B component from what will add.
Under the situation of the thermoplastic and high-elastic that will prepare high percentage composition component C, should be noted that and to avoid forming ground scrap.If this is a potential problem, then must before sulfuration process, add component C.May take place under the situation of covulcanization in B component and C, must estimate other alternate selection schemes.Its possibility (and non-exhaustive) is to select the amorphous product B of another kind of type or the vulcanizing agent (not making a kind of vulcanizing agent of B component sulfurized as only making component C) of another kind of type.
Product of the present invention can be used for making various goods, for example sebific duct or moulded product.These goods can adopt technology such as extrusion molding, injection moulding or compression molding to make.These goods are particularly useful for the application scenario of following type, the improvement performance that is TPV has good purposes, for example (use as so-called soft contact) in the soft application scenario, this moment, this product can replace flexible PVC, perhaps in the application scenario to low haze and the sexy interest of low oil swell.This examples of applications can be loudspeaker horn, gasket (circle), tubing, drug packages container and other.
Thermoplastic Vulcanizate of the present invention also is suitable for making spandex fiber very much.The fiber number of this fibrid is 1-1000 spy, preferred 2-500 spy, more preferably 5-250 spy (definition of " spy " be 1000 meters long fibers weight (with the gram expression) (g/1000m)).Extension at break is at least 100%, and can be up to 400%, or even 600%.This fibrid is suitable for giving textile materials, fabric and tricot and elasticity.This fibrid also can with other fiber, be used in combination as tynex or cotton fibre.This fibrid can be made by the melt spinning technology of thermoplastic and high-elastic of the present invention.The equipment that is applicable to this technology is known for the people of present technique, and comprises at least one unit equipment that contains this fused thermoplastic and high-elastic and the spinning jet in one or more holes is arranged, so that form fiber from this fused thermoplastic and high-elastic.Produce the equipment of this thermoplastic and high-elastic and can be combined into a device, for example be combined into the extruding machine that a spinning jet is housed in its exit from the equipment of this elastomerics producd fibers.
Compare with traditional TPV of the rubber of the partial vulcanization at least that contains same amount, thermoplastic and high-elastic of the present invention has unforeseeable improvement performance.What can mention is that especially low mouldability, tension set and foaminess all are improved.Owing to this result, can obtain the thermoforming product of soft grade now.This series products up to this point can't obtain at all, perhaps only just can obtain with quite high price, even perhaps obtained, its physicals must be relatively poor.
The present invention will be illustrated by following example and contrast experiment.In any case but these examples are not construed as limiting the invention yet.
Physicals used in the table is as follows: CS: compression set, press ISO815 and measure M: Young's modulus, press ISO37 and measure TS: tensile strength, press ISO37 and measure EB: extension at break, press ISO37 and measure Δ H: heat of crystallization, measure Tm with the DSC method: fusing point, the weight (g) of measuring tex:1000 rice fiber with the DSC method is toughness (g/1000m): press BS5421, part 2,1978 is measured, and is benchmark with initial fineness.Tension set: make the long fibre deformation (stretching) of 5cm to 100,200,300 of raw footage
And 400% and kept for 10 seconds, allow this fiber (no tension force) 1 that relaxes then
Hour (under the room temperature).Calculate tension set from following formula:
The example I
Prepared a kind of thermoplastic and high-elastic: flexible homopolymer polypropylene, the i.e. Rexflex of Rexene company based on following material
(EPDM-1 is the EPDM of a kind of ethylidene norbornene (ENB) type, and weight-average molecular weight Mw is 6 * 10 for FPO D100 (amorphous polypropylene that contains 53% weight is measured by at room temperature the 0.1mm film being immersed in the hexanaphthene) and a kind of EPDM
5(measuring) with the SEC-DV method.Adopt dynamic vulcanization technology to make product with Banbury mixer system; The SP1045 that uses Schenactady company is as the phenolic aldehyde vulcanizing agent.Used each one-tenth is respectively in the table I, the results are shown in the table II.
The example II
Method according to the example I prepares TPV, but without Rexflex FPO D 100; But with Rexflex FPO D400, promptly a kind of flexible polypropylene copolymer (the amorphous product that contains 60% weight).The results are shown in the table II.
Comparative experiment A+B
Repeat example I and II, but without the Rexflex polymkeric substance, but use homopolymer polypropylene and copolymer resin (melt flow index (at 230 ℃, measuring according to ISO1133 under the 2.16kg load) is that 1.2 PP1 and melt flow index are 1.0 PP2) respectively.The results are shown in the table II.
The table I
| Example/experiment | Ⅰ-Ⅱ/A-B |
| EPDM (component C) | 100 |
| Polyolefine (component A+3) | 42 |
| Talcum | 40 |
| SP1045 | 3.0 |
| SnCl 2. dihydrate | 3.0 |
| ZnO | 1.8 |
| Phenol antioxidant | 0.9 |
| Extending oil | 164 |
All the components all provides with the umber of per 100 parts of component C.
The table II
| Example/experiment | ?A | ?B | ?Ⅰ | ?Ⅱ |
| Hardness (A) | ?54 | ?45 | ?27 | ?24 |
| CS@23℃,％ | ?19 | ?17 | ?18 | ?19 |
| M 100,MPa | ?1.8 | ?1.5 | ?0.7 | ?0.8 |
| M 200,MPa | ?2.6 | ?2.3 | ?1.1 | ?1.2 |
| M 300,MPa | ?3.2 | ?3.1 | ?1.5 | ?--- |
| M 500,MPa | ?4.5 | ?4.4 | ?2.1 | ?--- |
| TS,MPa | ?4.7 | ?6.0 | ?2.2 | ?1.5 |
| EB,％ | ?530 | ?720 | ?550 | ?280 |
| ΔH,J/g | ?11.8 | ?9.7 | ?2.3 | ?1.6 |
| Tm,℃ | ?148 | ?148 | ?142 | ?136 |
Example III-VI
Repeat the example I, but, use PP1 and amorphous ethylene/propene copolymer (EP-1, Mw=1.9 * 10 of different ratios respectively as component A and B
5, degree of crystallinity 5%).The summation of component A+B is by shown in the table I.The results are shown in the table III.
The table III
| Example | Ⅲ | ?Ⅳ | ?Ⅴ | ?Ⅵ |
| PP1/EP-1 | 80/20 | ?60/40 | ?40/60 | ?30/70 |
| Hardness (A) | 42 | ?35 | ?30 | ?22 |
| CS@23℃,％ | 24 | ?18 | ?22 | ?25 |
| CS@70℃,％ | 32 | ?23 | ?27 | ?35 |
| CS@100℃,％ | 34 | ?26 | ?32 | ?36 |
| M 100,MPa | 1.2 | ?0.9 | ?0.8 | ?0.5 |
| M 200,MPa | 1.9 | ?1.5 | ?1.3 | ?0.8 |
| TS,MPa | 2.8 | ?1.8 | ?1.7 | ?1.1 |
| EB,％ | 410 | ?240 | ?290 | ?290 |
| ΔH,J/g | 9.2 | ?6.3 | ?5.2 | ?2.7 |
| Tm,℃ | 150 | ?150 | ?150 | ?150 |
The example VII
Prepared a kind of based on the Rexflex FPO D100 of Rexene company production and the thermoplastic and high-elastic of a kind of EPDM (EPDM-2, a kind of Mw are 240,000 ENB type EPDM).This product is that to adopt dynamic vulcanization technology volume be that 350 milliliters Brabender Banbury mixer prepares.Used each one-tenth is respectively in the table IV.With Gottfert Viscotester1500 this product is carried out melt spinning subsequently, make the monofilament spandex fiber.The results are shown in the table V.
The example VIII
Make a kind of elastomeric monofilaments according to the method for example VII, but when the preparation thermoplastic and high-elastic, use less Rexflex FPO D100.Each becomes to be respectively in the table IV, the results are shown in the table V.
The example IX
Make a kind of elastomeric monofilaments fiber according to the method for example VII, but preparation during thermoplastic and high-elastic without Rexflex FPO D100, and with Rexflex FPO 400.Each becomes to be respectively in the table IV, the results are shown in the table V.
Contrast experiment C
Make a kind of elastomeric monofilaments fiber according to the method for example VII, but without Rexflex FPOD100, and use PP1.Each becomes to be respectively in the table IV, the results are shown in the table V.
The table IV
| Example/experiment | Ⅶ | Ⅷ | Ⅸ | C |
| EPDM (component C) | 100 | 100 | 100 | 100 |
| Rexflex FPO D100 (component A+B) | 70 | 45 | - | - |
| Rexflex FPo D400 (component A+B) | - | - | 70 | - |
| ?PP1 | - | - | - | 70 |
| ?SP1045 | 5 | 5 | 5 | 5 |
| ?SnCl 2. dihydrate | 1 | 1 | 1 | 1 |
| ?ZnO | 1 | 1 | 1 | 1 |
| Phenol antioxidant | 0.7 | 0.5 | 0.7 | 0.7 |
The table V
| Example/experiment | Ⅶ | ?Ⅷ | ?Ⅸ | ??C |
| Fineness, tex | 105 | ?110 | ?107 | ?132 |
| Toughness, cN/tex | 1.8 | ?1.4 | ?1.7 | ?3.8 |
| Elongation, % | 730 | ?680 | ?610 | ?415 |
| Tension set is stretched to 100% | 5 | ?3 | ?4 | ?5 |
| Tension set is stretched to 200% | 11 | ?8 | ?10 | ?23 |
| Tension set is stretched to 300% | 19 | ?17 | ?19 | ?50 |
| Tension set is stretched to 400% | 33 | ?30 | ?32 | ?215 |
| Tension set is stretched to 200%, oriented fibre 1 | 3 | ?2 | ?3 | ??- |
1) fiber is stretched to 400% (10 seconds) and relaxed about 24 hours.
The fiber of this melt spinning has low tension set after big deformation (400%).When this fiber when stretched behind spinning technique (with lax), find that its tension set reduces.In addition, also observing toughness increase and maximum elongation slightly descends.
Example X-X IV and contrast experiment D
Adopt dynamic vulcanization process in a Brabender Banbury mixer, to prepare a kind of thermoplastic and high-elastic.Each becomes to be respectively in the table VI.Use 2 kinds of homopolymer Rexflex FPO (D100 and D1720), 2 kinds of multipolymer FPO (D400 and D1820), and as a comparison, use PP1.All use EPDM-2 as rubber (component C) in all cases.
The table VI
| Example | Ⅹ-ⅩⅢ | ⅩⅣ | ??D |
| ?EPDM(C) | ?100 | ?100 | ?100 |
| Polyolefine (A+B) | ?70 | ?45 | ?70 |
| ?SP1045 | ?5.2 | ?5.2 | ?5.2 |
| ?SnCl 2. dihydrate | ?0.5 | ?0.5 | ?0.5 |
Behind after 100%, 200%, 300% and 400% deformation and 1 hour and 12 hours unstressed lax, the measurement result of tension set is listed in the table VII.
The table VII
| Example/experiment | Deformation 10 seconds is stretched to | Tension set after 1 hour [%] | Tension set after 12 hours [%] | |
| Ⅹ | ?Rexflex ?D100 | ?100％ ?200％ ?300％ ?400％ | ?5 ?12 ?21 ?36 | ?4 ?10 ?18 ?30 |
| Ⅺ | ?Rexflex ?D1720 | ?100％ ?200％ ?300％ ?400％ | ?9 ?23 ?49 ?89 | ?8 ?20 ?42 ?76 |
| Ⅻ | ?Rexflex ?D400 | ?100％ ?200％ ?300％ ?400％ | ?4 ?8 ?17 ?35 | ?4 ?7 ?14 ?30 |
| ⅩⅢ | ?Rexflex ?D1820 | ?100％ ?200％ ?300％ ?400％ | ?8 ?21 ?46 ?83 | ?7 ?18 ?41 ?72 |
| ⅩⅣ | ?Rexflex ?D100 | ?100％ ?200％ ?300％ ?400％ | ?3 ?8 ?17 ?33 | ?3 ?7 ?14 ?27 |
| ?D | ?PP1 | ?100％ ?200％ ?300％ ?400％ | ?14 ?57 ?128 ?215 | ?13 ?48 ?110 ?190 |
Claims (16)
1. the thermoplastic and high-elastic that contains the blend of rubber and thermoplastic resin, described rubber are partial vulcanizations at least, it is characterized in that this elastomerics comprises:
A) a kind of thermoplastic resin,
B) a kind of amorphous polyolefine is selected from the amorphous alpha-olefin homo, and wherein this alpha-olefin contains 3-20 carbon atom and based on ethene with contain the amorphous alpha-olefin copolymer of the alpha-olefin of 3-20 carbon atom, and
C) a kind of rubber of partial vulcanization at least,
Wherein the ratio of B component and component (A+B) is between 15-75% (weight), and the content of component C is 25-90% (weight) (is benchmark in (A+B+C)), and wherein this amorphous polyolefin component B is unvulcanized.
2. according to the thermoplastic and high-elastic of claim 1, it is characterized in that the DSC method degree of crystallinity of this thermoplastic resin is at least 25%.
3. according to any one thermoplastic and high-elastic among the claim 1-2, it is characterized in that this thermoplastic resin is the thermoplastic olefin resin.
4. according to the thermoplastic and high-elastic of claim 3, it is characterized in that this thermoplastic olefin resin is selected from polyethylene and polyacrylic homopolymer or multipolymer.
5. according to any one thermoplastic and high-elastic among the claim 1-4, it is characterized in that this amorphous polyolefine is the amorphous polypropylene.
6. according to any one thermoplastic and high-elastic among the claim 1-5, it is characterized in that the polyolefinic number-average molecular weight Mn of this amorphous is at least 25,000.
7. according to any one thermoplastic and high-elastic among the claim 1-6, it is characterized in that this rubber is selected from EADM or isoprene-isobutylene rubber.
8. according to any one thermoplastic and high-elastic among the claim 1-7, it is characterized in that the amorphous polyolefine and the ratio of (thermoplastic resin+amorphous polyolefine) are 20-70% (weight).
9. according to any one thermoplastic and high-elastic among the claim 1-8, it is characterized in that flexible polyolefine is used for the combination of component (A+B).
10. according to any one thermoplastic and high-elastic among the claim 1-9, it is characterized in that the described vulcanization of rubber to the rubber that can be extracted is no more than 15% degree.
11., it is characterized in that the rubber that can be extracted is no more than 5% according to the thermoplastic and high-elastic of claim 10.
12., it is characterized in that by per 100 parts of components (A+B+C) amount of component A is 10-25% (weight) according to any one thermoplastic and high-elastic among the claim 1-11.
13. preparation, is characterized in that this thermoplastic and high-elastic is by each component being mixed, subsequently this blend being carried out dynamic vulcanization and prepare according to the technology of the thermoplastic and high-elastic of any one among the claim 1-12.
14., it is characterized in that before component A and B and other composition blending, component A and B being carried out premix according to the technology of claim 13.
15., it is characterized in that B component adds after component C finishes sulfuration according to the technology of claim 13.
16. contain spandex fiber according to the thermoplastic and high-elastic of any one among the claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97195480 CN1222172A (en) | 1996-04-12 | 1997-03-18 | Thermoplastic elastomer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60/015,295 | 1996-04-12 | ||
| EP96200994.0 | 1996-04-12 | ||
| CN 97195480 CN1222172A (en) | 1996-04-12 | 1997-03-18 | Thermoplastic elastomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1222172A true CN1222172A (en) | 1999-07-07 |
Family
ID=5179197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97195480 Pending CN1222172A (en) | 1996-04-12 | 1997-03-18 | Thermoplastic elastomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1222172A (en) |
-
1997
- 1997-03-18 CN CN 97195480 patent/CN1222172A/en active Pending
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