CN1752147A - Silicon rubber composition - Google Patents
Silicon rubber composition Download PDFInfo
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- CN1752147A CN1752147A CN 200510109785 CN200510109785A CN1752147A CN 1752147 A CN1752147 A CN 1752147A CN 200510109785 CN200510109785 CN 200510109785 CN 200510109785 A CN200510109785 A CN 200510109785A CN 1752147 A CN1752147 A CN 1752147A
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Abstract
To obtain an oil-bleeding silicone rubber composition that has especially excellent curing properties, bleeds silicone oil to the surface and has excellent sealability after assembly operation and mounting and insulation properties. The oil-bleeding silicone rubber composition comprises (A) 100 parts by mass of an organopolysiloxane having >=3,000 polymerization degree, (B) 1-30 parts by mass of a silanol group-containing organosilicon compound, (C) 5-100 parts by mass of precipitated silica having >=50 cm<SP>2</SP>/g specific surface area and pH 7-9 in 4 mass% of an aqueous suspension, (D) 0.5-10 parts by mass of phenyl group-containing silicone oil and (E) 0.1-10 parts by mass of biscarbonate peroxide.
Description
Technical field
The present invention relates to the oil impregnate rubber composition.
Background technology
Silicon rubber is used as trolley part because its excellent characteristic, particularly, as the liner of oil sealing, junction, rubber plug, O-ring seals, barrier film, divider with uses such as grommets.Particularly in the junction, divider uses the grommet field, the result of the stopping property after operability when investigating assembling and the installation, water-repellancy, insulativity, confirmed that the butyrous silicon rubber that oozes at the surperficial oil impregnate of moulding product is that effectively this oil impregnate silicon rubber is widely used.
In patent documentation 1, proposed to cooperate the oil impregnate rubber composition of the oil seepage of the hydroxyl that contains specified quantitative and phenyl.Proposed to cooperate the oil impregnate rubber composition of 2 kinds of oil seepages in the patent documentation 2.In patent documentation 3, the exudative rubber composition when having proposed the curing when having used JSR vulkameter III to be determined at 170 ℃ of following sulfurations in the scope of maximum torque at 4～10kgfcm.
The moulding product of such oil impregnate rubber composition can be shaped to the shape of expectation with this rubber composition by general rubber moulding methods such as compressed moulding, shifting formwork moulding, injection moldings, according to ordinary method, obtain by sulfuration curing.These moulding product mostly are the combination complicated shape.In addition, most cases, the size of these moulding product is little, and once shaped can be made dozens of to hundreds of moulding product.Therefore, improve solidified nature and on boosting productivity, be absolutely necessary, therefore seek the oil impregnate rubber composition of solidified nature excellence.
In patent documentation 4, the settleability silicon-dioxide that has proposed to use alkalescence is as silicone gasket, disclose can obtain painted less, silicon rubber that the transparency is excellent.But, there is not concrete record about the kind of dispersion agent and solidifying agent, do not relate to alkaline silicon-dioxide to influence of solidified nature etc. yet.
The silicon rubber solidifying agent that normal pressure hot gas sulfuration (HAV) type that peroxy dicarbonate uses as extrusion molding article has been shown in the patent documentation 5 and 6 is useful, but does not relate to the relation of the settleability silicon-dioxide of any and alkalescence.
[patent documentation 1] spy opens flat 6-16938 communique
[patent documentation 2] spy opens flat 6-93186 communique
[patent documentation 3] spy opens flat 11-148013 communique
[patent documentation 4] spy opens flat 6-1878 communique
[patent documentation 5] spy opens clear 63-130663 communique
[patent documentation 6] spy opens flat 8-134357 communique
Summary of the invention
Invent problem to be solved
The objective of the invention is to, curing characteristics is provided, and excellence, silicone oil ooze the stopping property after surface, assembly operation or installation, the oil impregnate rubber composition of insulativity excellence especially.
Solve the measure of problem
Present inventors are in order to finish above-mentioned problem, and the result who furthers investigate finds can solve above-mentioned problem by the oil impregnate rubber composition that contains alkalescence or neutral settleability silicon-dioxide and peroxy dicarbonate, thereby finished the present invention.That is, the invention provides the oil impregnate rubber composition, it is characterized in that said composition contains:
(A) with following general formula (1):
R
aSiO
(4-a)/2(1)
(in the formula, R represents the monovalence alkyl of non-replacement or replacement independently, and wherein, 0.0001～0.5 mole of % is an alkenyl, and a is 1.95～2.05 number)
The polymerization degree of expression is organopolysiloxane 100 mass parts more than 3000 or 3000;
(B) use general formula:
(in the formula, R
1Represent methyl or vinyl independently, m is 1～100 integer) expression the silicoorganic compound that contain silanol group 1～30 mass parts;
(C) specific surface area 50m
2/ g or 50m
2More than/the g, the pH of the waterborne suspension of 4 quality % is 7～9 settleability silicon-dioxide 5～100 mass parts;
(D) contain silicone oil 0.5～10 mass parts of phenyl; And
(E) peroxy dicarbonate 0.1～10 mass parts.
The effect of invention
Oil impregnate rubber composition of the present invention is the solidified nature excellence particularly.In addition, the present composition is by oil seepage, make assembly operation or install after stopping property, insulativity excellence.Rerum natura such as elongation when composition of the present invention also has excellent tensile strength, fracture is arranged again.Therefore, composition of the present invention goes for the sealing usefulness of joint packing, body seal, wire sealing etc.
The preferred plan that carries out an invention
Below, the present invention is described in further detail.
[(A) composition]
(A) organopolysiloxane of composition is with following general formula (1):
R
aSiO
(4-a)/2 (1)
Expression, the polymerization degree is more than 3000 or 3000.
In this general formula (1), R represents the monovalence alkyl of non-replacement or replacement independently, wherein, 0.0001～0.5 mole of %, preferred 0.01～0.3 mole of % is alkenyls such as vinyl, allyl group.This alkenyl containing ratio is during less than 0.0001 mole of %, and the solidified nature of organopolysiloxane is insufficient, in addition, during greater than 0.5 mole of %, the characteristic variation of the cured article that obtains by the present composition.
When R represents monovalence alkyl beyond the alkenyl,, can enumerate alkyl such as methyl, ethyl, propyl group, butyl, amyl group, hexyl, octyl group, decyl, dodecyl as its example; Aryl such as phenyl, tolyl; Aralkyl such as β-styroyl; And be combined in hydrogen atom on the carbon atom of these alkyl part or all replaced the group that obtains (for example 3 by halogen atom such as fluorine or cyano group, 3,3-trifluoro propyl or cyanoethyl) etc., wherein, preferable methyl, the preferred 90 moles of % of methyl or 90 moles are more than the %, preferred especially 95 moles of % or more than 95% mole.
In above-mentioned general formula (1), a is 1.95～2.05 number, is generally 2, but does not damage the scope of caoutchouc elasticity at cured article, and (A) composition also can have branch.A is beyond this scope the time, is not easy the synthesized polymer degree and is the organopolysiloxane more than 3000 or 3000.
For the organopolysiloxane that makes (A) composition has sufficient mechanical, the polymerization degree is necessary for more than 3,000 or 3,000, preferred especially 4,000～20,000 organopolysiloxane.
(A) molecule chain end of the organopolysiloxane of composition is used end-blockings such as hydroxyl, three organic siloxy units usually, but preferred apparatus is just like at least one the group end capping of alkenyl of dimethyl vinyl silyl.
As (A) composition, also can use the organopolysiloxane of two or more different of the polymerization degree simultaneously with molecular structure.
[(B) composition]
(B) silicoorganic compound that contain silanol group of composition, be as preparation during silastic mixture dispersion agent and the material that plays a role, with following general formula (2):
The dihydroxyl silane of expression or the terminal organopolysiloxane that contains silanol group.In the above-mentioned general formula (2), R
1Represent methyl or vinyl independently.In addition, m is 1～100 integer, preferred 1～60 integer, preferred especially 1～30 integer.
As the object lesson of (B) composition, can enumerate
(in the formula, m as previously mentioned, p and q satisfy p 〉=1, the integer of q 〉=0 and p+q=m) etc.
(B) use level of composition is 1～30 mass parts with respect to 100 mass parts (A) composition, preferred 2～20 mass parts.If use level less than 1 mass parts, contain the possible variation of silica-filled dose dispersity of the settleability silicon-dioxide of (C) composition, if surpass 30 mass parts, rubber stock of the present invention can be clamminess, the operability variation, the mechanical characteristics that its cured article may take place reduces.
[(C) composition]
(C) the settleability silicon-dioxide of composition is the material that constitutes feature of the present invention, and specific surface area is 50m
2/ g or 50m
2More than/the g, preferred 100～400m
2/ g.The pH of 4 quality % waterborne suspensions of settleability silicon-dioxide is 7～9, preferred 7.5～8.5.If this pH is too high, the prolongation that the specific surface area of settleability silicon-dioxide can be in time and reducing, the plasticity number of the present composition can reduce.This pH crosses when hanging down, the solidified nature variation of the present composition.(C) the settleability silicon-dioxide of composition can obtain from silicon-dioxide manufacturers such as eastern ソ one シ リ カ Co., Ltd..
Here, so-called " waterborne suspension " is that the settleability silicon-dioxide of specified amount is dispersed in the dispersion liquid that obtains in the pure water (for example, distilled water or deionized water) of pH7.Waterborne suspension is put into Glass Containers by measuring silicon-dioxide, and adding distil water makes concentration become the fierce vibration of 10 quality % and modulated in 1 minute, as long as the dispersion state of finding of naked eye is uniformly just passable.
(C) use level of composition is 5～100 mass parts with respect to the organopolysiloxane of (A) composition of 100 mass parts, preferred 10～50 mass parts.This use level is very few or too much, all reduces the processibility of the rubber composition that obtains easily, makes the physical strength of the cured article that obtains become insufficient easily.
[(D) composition]
As the silicone oil that contains phenyl of (D) composition, preferred use-case such as following general formula (3):
R
3 2SiO-[Si(R
2)
2O]
n-SiR
3 2 (3)
(in the formula, R
2Expression not fatty family unsaturated link(age), similar or inhomogeneous replacement or non-replacement, preferred carbonatoms is 1～10, preferred especially 1～8 monovalence alkyl, and n represents 1～1,000, preferred 10～800, preferred especially 50～500 integer)
The silicone oil that contains phenyl of expression.
As R
2Object lesson, can enumerate alkyl such as methyl, ethyl, propyl group, butyl, hexyl, cycloalkyl such as cyclohexyl, aryl such as phenyl, tolyl, aralkyl such as benzyl, and part or all group that is obtained by the halogen atom replacement that is combined in the hydrogen atom of these alkyl, for example, 3,3,3-trifluoro propyl etc., special preferable methyl.R
2In, at least one is a phenyl, the preferably whole R of phenyl content
25～50 moles of %, preferred especially 10～40 moles of %.
As such organopolysiloxane that contains phenyl, can example illustrate, the two ends end capped dimethyl siloxane phenyl methyl of trimethylsiloxy silicone copolymers, the two ends end capped dimethyl siloxane diphenyl siloxane of trimethylsiloxy multipolymer, the two ends end capped dimethyl siloxane phenyl methyl of trimethylsiloxy siloxanes methyl (3,3, the 3-trifluoro propyl) silicone copolymers etc.
As the use level of the silicone oil that contains phenyl of (D) composition, be 0.5～10 mass parts with respect to (A) compositions of 100 mass parts, preferred 1～5 mass parts.When this use level surpassed 10 mass parts, the clinging power of rubber composition increased, and the roller processibility reduces.During this use level less than 0.5 mass parts, oil impregnate, and then cause oilness to become insufficient.
[(E) composition]
(E) peroxy dicarbonate of composition is the material that constitutes second feature of the present invention, uses simultaneously by (C) composition with conduct alkalescence or neutral settleability silicon-dioxide, can give play to effect of the present invention.(E) composition is with following general formula (4):
(in the formula, X represents with following formula (5), (6) or (7):
-(CH
2)
p- (5)
(p is 2～8 integer),
-(C
2H
4O)
q-C
2H
4- (7)
(q is 1～4 integer)
The group of expression, R
3And R
4The monovalence alkyl of expression carbonatoms 3～10 or with-SiR
5 3(R
5Be methyl, ethyl or phenyl independently) expression Organosilyl, can be the same or different each other) expression organo-peroxide.
In above-mentioned general formula (4), as R
3And R
4, alkyl such as propyl group, butyl, amyl group, hexyl, octyl group, decyl, dodecyl can example be shown; Aryl such as phenyl, tolyl; The silyl of aralkyl such as β-styroyl, triethylsilyl, triphenyl etc.
As the object lesson of (E) composition, can enumerate:
(E) addition of composition is 0.1～10 mass parts with respect to organopolysiloxane 100 mass parts of (A) composition, preferred 0.5～5 mass parts.By above-mentioned addition is set in this scope, can in solidifying, the sulfuration of rubber composition of the present invention add (E) composition of necessary amount.
[other compositions]
In composition of the present invention, except that mentioned component, optionally, can also add non-enhancing silicon-dioxide such as crushed quartz, crystallinity silicon-dioxide, carbon blacks such as acetylene black, furnace black, channel black, weighting agents such as lime carbonate, various additives, releasing agent, carbon functional silanes etc. such as tinting material, tear strength rising agent, thermotolerance rising agent, flame retardant resistance rising agent, sour accepting agent (being subjected to sour drug), thermal conductivity rising agent, known additives in rubber composition.
[modulation of composition is solidified]
By in by the synthetic substrate mixture of above-mentioned (A)～(D) composition, mixing above-mentioned (E) composition and solidifying, can obtain rubber-like elastic body.
Above-mentioned substrate mixture can pass through limit heat treated above-mentioned (A)～(D) composition, and the limit is with 2 roller runner millings, Banbury, milling machine compounding rubbers such as (kneaders) machine uniform mixing and obtain.Preferred 100～200 ℃ of the temperature of heat treated, more preferred 130～180 ℃.In addition, the heat treated time also without limits, but preferred 30 minutes～10 hours, more preferred 1～4 hour.
The curing of rubber composition of the present invention is not particularly limited so long as can provide the method for sufficient heat to get final product for the decomposition of solidifying agent and the sulfuration of silicon rubber.In addition, its manufacturing process also has no particular limits, can enumerate, for example, the endless vulcanization by extrusion molding, compacting, injection etc.In addition, also can carry out post cure about 1～6 hour under 180 ℃～230 ℃.
[purposes of composition]
Oil impregnate rubber composition of the present invention is suitable as various sealing materials such as the combination seal, body seal, wire sealing of wiring on automobile etc. and uses.
Embodiment
Below, embodiment and comparative example are shown, specifically describe the present invention, but the present invention is not limited to these embodiment.In addition, viscosity is the measured value in the time of 25 ℃.
[measuring method]
Among below each embodiment and comparative example, when carrying out blending dispersion, judge the roller processibility with the benchmark that is shown in Table 1 by 2 roller runner millings.In addition, under 165 ℃, the rubber composition that produces is carried out press vulcanization 10 minutes, then, under 200 ℃, carry out 4 hours post cure, make experiment slice thus.With JIS K 6249 is that benchmark is measured this experiment slice rerum natura (extending when hardness, tensile strength, fracture) under normal conditions.Have again, behind the making experiment slice, placed 72 hours, therebetween, gather and scrape the oil of getting that oozes out the surface, and metering, seepage discharge measured.Obtain the ratio of seepage discharge of whole (D) composition of interpolation.The results are shown in table 1.
[embodiment 1]
The mean polymerisation degree that (A) is comprised 99.85 moles of % of dimethyl siloxane units, 0.125 mole of % of methyl vinyl siloxane unit, the 0.025 mole of % in dimethyl vinylsiloxane unit is about 8000 organopolysiloxane untreated rubber 100 mass parts, (B) molecule chain end contains dimethyl polysiloxane (polymerization degree 20) 12 mass parts of hydroxyl, (C) specific surface area 164m
2The pH of/g, 4 quality % waterborne suspensions is 8.9 settleability silicon-dioxide 40 mass parts, (D) two ends that comprise 80 moles of % of dimethyl siloxane units and diphenyl siloxane unit 20 moles of %, viscosity 200mPas with end capped organopolysiloxane 3.5 mass parts of trimethylsiloxy in kneader mixing evenly after, under 170 ℃, carry out thermal treatment in 2 hours, obtain silastic mixture.With 2 roller runner millings blending dispersion (E) 1 in these silastic mixture 100 mass parts, two (t-butyl peroxy carbonyl oxygen base) hexane 0.5 mass parts of 6-are judged the roller processibility with the benchmark that is shown in table 1, and make rubber composition.
[embodiment 2]
(A) comprised 99.85 moles of % of dimethyl siloxane units, 0.125 mole of % of methyl vinyl siloxane unit, the mean polymerisation degree of the 0.025 mole of % in dimethyl vinylsiloxane unit is about 8000 organopolysiloxane untreated rubber 30 mass parts, and comprise 99.985 moles of % of dimethyl siloxane units, the mean polymerisation degree of the 0.025 mole of % in dimethyl vinylsiloxane unit is about 8000 organopolysiloxane untreated rubber 70 mass parts, (B) molecule chain end contains dimethyl polysiloxane (polymerization degree 20) 15 mass parts of hydroxyl, (C) specific surface area 193m
2The pH of/g, 4 quality % waterborne suspensions is 8.55 settleability silicon-dioxide 40 mass parts, (D) two ends that comprise 80 moles of % of dimethyl siloxane units and diphenyl siloxane unit 20 moles of %, viscosity 200Pas with end capped organopolysiloxane 3 mass parts of trimethylsiloxy in kneader mixing evenly after, under 170 ℃, carry out thermal treatment in 2 hours, obtain silastic mixture.With 2 roller runner millings blending dispersion (E) 1 in these silastic mixture 100 mass parts, two (t-butyl peroxy carbonyl oxygen base) hexane 0.5 mass parts of 6-are judged the roller processibility with the benchmark that is shown in table 1, and make rubber composition.
[embodiment 3]
(A) comprised 99.85 moles of % of dimethyl siloxane units, 0.125 mole of % of methyl vinyl siloxane unit, the mean polymerisation degree of the 0.025 mole of % in dimethyl vinylsiloxane unit is about 8000 organopolysiloxane untreated rubber 90 mass parts, and comprise 99.5 moles of % of dimethyl siloxane units, 0.475 mole of % of methyl vinyl siloxane unit, the mean polymerisation degree of the 0.025 mole of % in dimethyl vinylsiloxane unit is about 8000 organopolysiloxane untreated rubber 10 mass parts, (B) molecule chain end contains dimethyl polysiloxane (polymerization degree 20) 15 mass parts of hydroxyl, (C) specific surface area 188m
2The pH of/g, 4 quality % waterborne suspensions is 8.0 settleability silicon-dioxide 50 mass parts, (D) two ends that comprise 80 moles of % of dimethyl siloxane units and diphenyl siloxane unit 20 moles of %, viscosity 200mPas with end capped organopolysiloxane 3.5 mass parts of trimethylsiloxy in kneader mixing evenly after, under 170 ℃, carry out thermal treatment in 2 hours, obtain silastic mixture.With 2 roller runner millings blending dispersion (E) 2 in these silastic mixture 100 mass parts, 2-dimethyl-1, two (t-butyl peroxy carbonyl oxygen base) propane 0.5 mass parts of 3-are judged the roller processibility with the benchmark that is shown in table 1, and make rubber composition.
[comparative example 1]
Remove and use specific surface area 201m
2The pH of/g, 4 quality % waterborne suspensions is 6.1 settleability silicon-dioxide 40 mass parts replacement specific surface area 164m
2The pH of/g, 4 quality % waterborne suspensions be 8.9 settleability silicon-dioxide 40 mass parts as beyond (C) composition, make rubber composition by the method identical with embodiment 1.
[comparative example 2]
Remove to use 2,5-dimethyl-2,5-two (t-butyl peroxy) hexane 0.4 mass parts replaces 1, and two (t-butylperoxy carbonyl oxygen base) hexane 0.5 mass parts of 6-are as beyond (E) composition, make rubber composition by the method identical with embodiment 1.
[comparative example 3]
Remove and use specific surface area 201m
2The pH of/g, 4 quality % waterborne suspensions is 6.1 settleability silicon-dioxide 50 mass parts replacement specific surface area 188m
2The pH of/g, 4 quality % waterborne suspensions be 8.0 settleability silicon-dioxide 50 mass parts as beyond (C) composition, make rubber composition by the method identical with embodiment 3.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Hardness (duroscope, A type) | 44 | 32 | 55 | 10 | 25 | 15 |
| Tensile strength (MPa) | 7 | 8 | 6.4 | 2 | 4 | 2 |
| Elongation (%) during fracture | 540 | 800 | 410 | 250 | 300 | 200 |
| The roller processibility | ○ | ○ | ○ | × | ○ | × |
| Oil impregnate amount (%) | 0.7 | 0.7 | 0.6 | 0.4 | 0.6 | 0.4 |
The criterion of roller processibility
Zero: the silastic mixture inadhesion is plasticated easily on roller.
*: silastic mixture adheres on the roller, the difficulty of plasticating.
[evaluation]
When revealing than the solidified nature of the composition excellence of comparative example, tensile strength, fracture, the compositions table of embodiment extends.
Claims (2)
1. an oil impregnate rubber composition is characterized in that said composition contains
(A) with following general formula (1):
R
aSiO
(4-a)/2 (1)
(in the formula, R represents the monovalence alkyl of non-replacement or replacement independently, and wherein, 0.0001～0.5 mole of % is an alkenyl, and a is 1.95～2.05 number)
The polymerization degree of expression is organopolysiloxane 100 mass parts more than 3000 or 3000;
(B) use general formula:
(in the formula, R
1Represent methyl or vinyl independently, m is 1～100 integer) expression the silicoorganic compound that contain silanol group 1～30 mass parts;
(C) specific surface area 50m
2/ g or 50m
2More than/the g, the pH of the waterborne suspension of 4 quality % is 7～9 settleability silicon-dioxide 5～100 mass parts;
(D) contain silicone oil 0.5～10 mass parts of phenyl; And
(E) peroxy dicarbonate 0.1～10 mass parts.
2. the oil impregnate rubber composition of putting down in writing according to claim 1, this oil impregnate rubber composition are sealing usefulness.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP273832/04 | 2004-09-21 | ||
| JP2004273832A JP4704713B2 (en) | 2004-09-21 | 2004-09-21 | Silicone rubber composition |
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| Publication Number | Publication Date |
|---|---|
| CN1752147A true CN1752147A (en) | 2006-03-29 |
| CN100549098C CN100549098C (en) | 2009-10-14 |
Family
ID=36230820
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101097857A Active CN100549098C (en) | 2004-09-21 | 2005-09-20 | Rubber composition |
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| Country | Link |
|---|---|
| JP (1) | JP4704713B2 (en) |
| CN (1) | CN100549098C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235203B (en) * | 2006-05-24 | 2011-11-30 | 信越化学工业株式会社 | Room temperature curable organopolysiloxane compositions |
| CN101605862B (en) * | 2007-02-08 | 2013-09-04 | 丰田自动车株式会社 | Sealing material for high-pressure hydrogen container, and high-pressure hydrogen container |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009062493A (en) * | 2007-09-07 | 2009-03-26 | Japan Gore Tex Inc | Rubbery member for gradually releasing oils |
| WO2013021717A1 (en) * | 2011-08-10 | 2013-02-14 | 株式会社Adeka | Silicon-containing curable composition and cured product of same |
| KR101908616B1 (en) * | 2017-02-06 | 2018-10-16 | 그레이스 콘티넨탈 코리아 주식회사 | Conductive silicone rubber composition and manufacturing method thereof |
| EP3947566A4 (en) * | 2019-03-29 | 2022-11-09 | Dow Silicones Corporation | Silicone elastomer compositions and elastomeric materials |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2891822B2 (en) * | 1992-06-22 | 1999-05-17 | 日本シリカ工業株式会社 | Hydrous silica for silicone rubber filler |
| JP4548559B2 (en) * | 2000-07-24 | 2010-09-22 | 信越化学工業株式会社 | Oil-bleedable silicone rubber molding method and oil-bleedable silicone rubber composition |
| DE10203500A1 (en) * | 2002-01-30 | 2003-08-07 | Degussa | Room temperature crosslinking one-component silicone rubber formulations with hydrophobic silicas |
| JP3838562B2 (en) * | 2002-08-14 | 2006-10-25 | 信越化学工業株式会社 | Oil-bleedable silicone rubber composition and method for producing the same |
| JP3901646B2 (en) * | 2003-02-24 | 2007-04-04 | 信越化学工業株式会社 | Oil bleed silicone rubber composition |
-
2004
- 2004-09-21 JP JP2004273832A patent/JP4704713B2/en active Active
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235203B (en) * | 2006-05-24 | 2011-11-30 | 信越化学工业株式会社 | Room temperature curable organopolysiloxane compositions |
| CN101605862B (en) * | 2007-02-08 | 2013-09-04 | 丰田自动车株式会社 | Sealing material for high-pressure hydrogen container, and high-pressure hydrogen container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100549098C (en) | 2009-10-14 |
| JP4704713B2 (en) | 2011-06-22 |
| JP2006089532A (en) | 2006-04-06 |
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