CN1800262A - Organic polysiloxane composition solidifying at room temperature - Google Patents
Organic polysiloxane composition solidifying at room temperature Download PDFInfo
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- CN1800262A CN1800262A CN 200510104660 CN200510104660A CN1800262A CN 1800262 A CN1800262 A CN 1800262A CN 200510104660 CN200510104660 CN 200510104660 CN 200510104660 A CN200510104660 A CN 200510104660A CN 1800262 A CN1800262 A CN 1800262A
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Abstract
The invention provides a room temperature curable organopolysiloxane composition that facilitates to secure a very long pot life, is free from a trouble caused by a silane monomer component derived from a volatile crosslinker, can be also used suitably as a two liquid type RTV, and further can change into a cured product having a good rubber elasticity. The room temperature curable organopolysiloxane composition is characterized by comprising: (A) 100 pts. by mass of an organopolysiloxane with the both ends of the molecular chain blocked with hydroxy groups, (B) 1-200 pts. by mass of a polysiloxane having a hydrolyzable silyl group through an alkylene bond in the molecule, and (C) 0.01-10 pts. by mass of a catalyst.
Description
Technical field
The present invention relates to normal temperature cured organic polysiloxane composition, said composition can keep the very long activity duration, and does not have the volatilization of reactive silicon hydride compounds when uncured substantially, is applicable to sealing agent, caking agent, coating agent or cast encapsulants.
Technical background
The silicone based sealing agent of condensation cured type, caking agent, coating agent, cast encapsulant composition have obtained use in many fields such as building, electric and electronic, conveyor, parts of electric, tame electrical articles.Usually, in the silicone based sealing agent of condensation cured type that in these purposes, uses, caking agent, coating agent, the cast encapsulant composition, use to have at least 3 silicoorganic compound that are bonded in the hydrolysable group on the Siliciumatom and/or its partial hydrolystate in the molecule as linking agent.It is meant water-disintegrable silane and/or its partial hydrolystate of trifunctional in fact, particularly, is alkyl trimethoxysilane, alkyl three butoxy silanes, alkyl triacetoxysilane, alkyl three isopropoxy silane or their partial hydrolystate.Because the reactivity of these reactive silanes is very high, can satisfy the rapidly-curable requirement in above-mentioned most of purposes.But, the application of big area structures such as structure coating, ship-bottom paint, wall application in roof water-proof, roof coating waterproofing, water, and sealing, bonding, apply, aspects such as the position cooperation of cast encapsulation back adhering object thing, surfacing, sometimes need to surpass 24 hours this very long operation working lives on the contrary, for normally used linking agent, reach so long operation and be working life unusual difficulty.
The silane monomer composition that is derived from linking agent, the low molecular weight polyorganosiloxane oligopolymer that produces when in addition, uncured can produce short circuit, the poor flow of the inadhesion that adds thermal distortion, organic application after the firm curing, electric terminal, the faults such as slippage of operating station.In the past, its major cause was considered to low molecule annular siloxane contained in the matrix polymer.But even remove low molecule annular siloxane in many cases as much as possible from matrix polymer, problem can not be solved fully.Being derived from the silane monomer composition with volatile linking agent also is its reason.
As the silicone based sealant material of condensation cured type, the material with sufficiently long working life is that the spy opens that clear 51-62850 communique, spy are opened clear 52-108796 communique, the spy opens the deamination oxygen fundamental mode composition of being put down in writing in the clear 55-92761 communique (patent documentation 1～3).But the dialkyl group oxyamine that deamination oxygen fundamental mode composition generated when solidifying has special smell, in addition, will prolong working life when obtaining the good solidification thing and be limited in about 12～24 hours.In order further to prolong working life, have special permission No. 2974231 communique, spy and open the method for the sort of interpolation volatility organo-siloxane of 2001-181508 communique (patent documentation 4,5), but cause the volatility organo-siloxane to the pollution of environment, and solidify the back volumetric shrinkage.The low smell composition of deamination oxygen fundamental mode composition can be enumerated the dealcoholizing-type composition as an alternative.As typical example, can enumerate disclosed material in the special public clear 39-27643 communique (patent documentation 6), the composition that is made of hydroxy-end capped organopolysiloxane, organoalkoxysilane and organic titanic compound is wherein disclosed.
In addition, the spy opens in the clear 55-43119 communique (patent documentation 7) and discloses the composition that is made of the end capped organopolysiloxane of alkoxysilyl, organoalkoxysilane and titan-alkoxide.In addition, the special composition that discloses in the 7-39547 communique (patent documentation 8) by the end capped organopolysiloxane of alkoxysilyl, organoalkoxysilane and the titan-alkoxide formation of siliceous ethylidene (シ Le エ チ レ Application base) that discloses.The spy opens and discloses the composition that organopolysiloxane, organoalkoxysilane and titanium by the end capped organopolysiloxane of alkoxysilyl, C-terminal constitute in the clear 62-207369 communique (patent documentation 9), and oil resistant swelling property, storage life (keeping quality) are improved.These dealcoholizing-type compositions be to so-called manufacture method, storage stability (through the time inhibition that changes), the improvement of various characteristics such as the oil resistant swelling property material after studying, particularly from the aspect of the feature-storage stability of dealcoholizing-type composition, what emphasize is the stable and what is called one liquid type composition that do not have the deep solidified nature when not having moisture.Relative therewith, relate to binary liquid shape composition with deep solidified nature, almost do not resemble and study in great detail the liquid type.
As the dealcoholizing-type KTV composition of binary liquid shape, specially permit No. 2784045 communique (patent documentation 10) and disclose the composition that constitutes with the end capped organopolysiloxane of silanol group, trialkoxy silane and partial hydrolystate, lime carbonate and organo-metallic catalyst by two ends.In addition, specially permit disclose in No. 3210424 communique (patent documentation 11) by two terminal with the end capped organopolysiloxane of silanol group, have the trisiloxanes, three or the composition that constitutes of tetraalkoxysilane and partial hydrolystate thereof, curing catalysts of 2 alkoxyl groups, but owing to all be to use organoalkoxysilane as linking agent, reduce catalytic amount in order to ensure enough working lives, thereby can not obtain enough mechanical properties.
[patent documentation 1] spy opens clear 51-62850 communique
[patent documentation 2] spy opens clear 52-108796 communique
[patent documentation 3] spy opens clear 55-92761 communique
No. 2974231 communique of [patent documentation 4] special permission
[patent documentation 5] spy opens the 2001-181508 communique
[patent documentation 6] special public 39-27643 communique
[patent documentation 7] spy opens clear 55-43119 communique
[patent documentation 8] special fair 7-39547 communique
[patent documentation 9] spy opens clear 62-207369 communique
No. 2784045 communique of [patent documentation 10] special permission
No. 3210424 communique of [patent documentation 11] special permission
Summary of the invention
The present invention makes in view of above situation, and purpose provides and be easy to guarantee the very long operating time, do not have the inconvenience that derives from the silane monomer with volatile linking agent and become branch to cause, applicable to as two liquid type RTV and can form the normal temperature cured organic polysiloxane composition of the cured article with good caoutchouc elasticity.
In order to achieve the above object, the inventor has carried out wholwe-hearted research, found that: contain diorganopolysiloxanecompositions 100 mass parts of (A) molecular chain two ends with the hydroxyl sealing, (B) has polysiloxane 1～200 mass parts in the molecular chain by the water-disintegrable silyl of alkylidene group keyed jointing, (C) normal temperature cured organic polysiloxane composition of catalyzer 0.01～10 mass parts can form and be easy to guarantee the very long operating time, do not exist to derive from the cured article that the silane monomer with volatile linking agent becomes the inconvenience that branch causes and has good caoutchouc elasticity, can be used as sealing agent effectively, caking agent, the coating agent, cast encapsulants etc.Promptly, found because when using organoalkoxysilane and partial hydrolystate thereof as linking agent, guarantee that with catalytic amount limitation is arranged working life, substitute as it, by using the reactive low polymer-type organoalkoxysilane of linking agent itself, the normal temperature cured organic polysiloxane composition that just can obtain to satisfy enough working lives simultaneously and solidify the back mechanical properties, thus the present invention finished.
Therefore, the invention provides normal temperature cured organic polysiloxane composition shown below.
[1] normal temperature cured organic polysiloxane composition is characterized in that containing:
(A) molecular chain two ends with diorganopolysiloxanecompositions 100 mass parts of hydroxyl sealing,
(B) have in the molecular chain polysiloxane 1～200 mass parts by the water-disintegrable silyl of alkylidene group keyed jointing,
(C) catalyzer 0.01～10 mass parts.
[2] [1] described normal temperature cured organic polysiloxane composition, wherein (A) composition is the diorganopolysiloxanecompositions shown in the following general formula (1).
HO(R
2SiO)
kH (1)
(in the formula, R is 1 a valency alkyl of identical or different, non-replacement or replacement, and k is the integer more than 10).
[3] [1] or [2] described normal temperature cured organic polysiloxane composition, wherein (B) composition is for being selected from one or more of the polysiloxane shown in following general formula (2)～(4).
(R
1O)
mR
2 3-mSi-R
3-(R
2SiO)
j-R
2Si-R
3-SiR
2 3-m(OR
1)
m (2)
(in the formula, R
1For identical or different carbonatoms is that 1～6 alkyl or carbonatoms are 2～10 alkoxyalkyl, R
2Be 1 valency alkyl of identical or different, non-replacement or replacement, R
3For carbonatoms is 1～12 alkylidene group, m is 1～3 integer, and n is the integer more than 1, and j is the integer more than 10, and h is the integer more than 2).
[4] each described normal temperature cured organic polysiloxane composition of [1]～[3] is characterized in that also containing (D) weighting agent 1～500 mass parts with respect to (A) composition 100 mass parts.
[5] [4] described normal temperature cured organic polysiloxane composition is characterized in that being selected from fumed silica, precipitated silica and lime carbonate as the weighting agent of (D) composition.
[6] each described normal temperature cured organic polysiloxane composition of [1]～[5] that uses as sealing agent, caking agent, coating agent or cast encapsulants.
Normal temperature cured organic polysiloxane composition of the present invention is easy to guarantee the very long operating time, do not exist to derive from silane monomer and become the inconvenience that branch causes and can form cured article, can be used as sealing agent, caking agent, coating agent, cast encapsulants etc. with good caoutchouc elasticity with volatile linking agent.
Embodiment
[(A) composition]
As molecular chain two ends of (A) composition diorganopolysiloxanecompositions, the diorganopolysiloxanecompositions shown in the preferred following general formula (1) with the hydroxyl sealing.
HO(R
2SiO)
kH (1)
(in the formula, R is 1 a valency alkyl of identical or different, non-replacement or replacement, and k is the integer more than 10).
In the above-mentioned formula (1), R is independently of one another for replacing or unsubstituted 1 valency alkyl, can the illustration carbonatoms be 1～20,1～6 alkyl particularly, carbonatoms is 2～20,2～6 thiazolinyl particularly, carbonatoms is 6～20, particularly 6～12 aryl, or the group that replaced by halogen atom of their a part of hydrogen atom, particularly, as alkyl, can the illustration methyl, ethyl, propyl group, cyclohexyl etc., as thiazolinyl, can the illustration vinyl, allyl group etc., as aryl, can the illustration phenyl etc., the group that replaces as halogen can illustration 3,3,3-trifluoro propyl etc.In addition, k is the integer more than 10, and the viscosity of this diorganopolysiloxanecompositions under 25 ℃ is 10～100,000 mPas, is preferably the numerical value of 100～50,000 mPas.
The viscosity of diorganopolysiloxanecompositions under 25 ℃ shown in the above-mentioned formula (1) is preferably the scope of 10～1,000,000 mPas, the scope of preferred especially 100～500,000 mPas, if not enough 10mPas, then cured article (rubber) can not obtain enough mechanical characteristicies sometimes, and during greater than 1,000,000 mPas, the viscosity of composition raises, sometimes the operability variation.Herein, viscosity is the value with rotary viscosity design determining.
[(B) composition]
As preferably have 2～10 in the molecular chain of (B) composition, more preferably 2～5 polysiloxane by the water-disintegrable silyl of alkylidene group keyed jointing are the compositions that play the linking agent effect in this composition.As the polysiloxane of (B) composition, be preferably in the polysiloxane shown in following general formula (2)～(4) one or more.
(R
1O)
mR
2 3-mSi-R
3-(R
2SiO)
j-R
2Si-R
3-SiR
2 3-m(OR
1)
m (2)
(in the formula, R
1For identical or different carbonatoms is that 1～6 alkyl or carbonatoms are 2～10 alkoxyalkyl, R
2Be 1 valency alkyl of identical or different, non-replacement or replacement, R
3For carbonatoms is 1～12 alkylidene group, m is 1～3 integer, and n is the integer more than 1, and j is the integer more than 10, and h is the integer more than 2).
In the above-mentioned formula, R
1Be that identical or different carbonatoms is that 1～6 alkyl or carbonatoms are 2～10 alkoxyalkyl, as alkyl, can enumerate methyl, ethyl, propyl group, cyclohexyl etc., as alkoxyalkyl, can enumerate methoxymethyl, ethoxyl methyl, the propoxy-methyl, butoxymethyl, the pentyloxy methyl, the hexyloxy methyl, heptan the oxygen ylmethyl, methoxy ethyl, ethoxyethyl group, the propoxy-ethyl, butoxyethyl group, the pentyloxy ethyl, the hexyloxy ethyl, methoxy-propyl, ethoxycarbonyl propyl, the propoxy-propyl group, the butoxy propyl group, the methoxyl group butyl, the oxyethyl group butyl, the propoxy-butyl, the methoxyl group amyl group, the oxyethyl group amyl group, the methoxyl group hexyl, methoxyl group heptyl etc.
In addition, R
21 valency alkyl for identical or different, non-replacement or replacement, can the illustration carbonatoms be 1～20, particularly 1～6 alkyl, carbonatoms are 6～20, the group that replaced by halogen atom of 6～12 aryl or their a part of hydrogen atom particularly, particularly, as alkyl, can the illustration methyl, ethyl, propyl group, cyclohexyl etc., as thiazolinyl, can the illustration vinyl, allyl group etc., as aryl, can the illustration phenyl etc., the group that replaces as halogen can illustration 3,3,3-trifluoro propyl etc.
R
3For carbonatoms is 1～12, particularly 1～6 alkylidene group particularly, can be enumerated methylene radical, ethylidene, propylidene, butylidene, hexylidene etc.
M is 1～3 integer, and n is more than 1, is preferably 1～5 integer, and j is more than 10, is preferably the integer more than 100, and h is more than 2, is preferably 2～10 integer.
Polysiloxane as (B) composition, viscosity under 25 ℃ is preferably the scope of 10～1,000,000 mPas, the scope of preferred especially 100～500,000 mPas, if viscosity is too small, then cured article (rubber) can not obtain enough mechanical characteristicies sometimes, if excessive, then the viscosity of composition raises, and operability descends sometimes.Herein, viscosity is the value with rotary viscosity design determining.
For this linking agent, can be easily by in the presence of catalyzer, the corresponding alkenyl siloxanes carries out addition reaction when making the silane with hydrogen silyl and alkoxyl group, or makes the silane with thiazolinyl and alkoxyl group carry out addition reaction to corresponding hydrogen siloxane and obtain.
As the use level of the polysiloxane of this (B) composition, be 1～200 mass parts with respect to (A) composition 100 mass parts, be preferably 3～150 mass parts.If less than 1 mass parts then can not obtain enough rubber rerum naturas, if surpass 200 mass parts, then the deep solidified nature of composition reduces the operability variation.
[(C) composition]
Curing catalysts as (C) composition is to play (A) composition to reach (B) material of the catalysts effect of composition in composition of the present invention.Wherein, can enumerate tin ester compound things such as dicaprylate tin; Tin alkyl ester cpds such as dibutyl tin diacetate esters, dibutyltin dilaurate, dibutyl tin dicaprylate; Titanic acid ester or titanium chelate compounds such as tetraisopropoxy titanium, four titanium n-butoxide, four (2-ethyl hexyl oxy) titanium, two (methyl ethyl diketone) titaniums of dipropoxy, the octylene glycol titanium of isopropoxy; Organometallic compounds such as zinc naphthenate, Zinic stearas, 2-ethyl zinc octoate, 2 ethyl hexanoic acid iron, 2 ethyl hexanoic acid cobalt, 2 ethyl hexanoic acid manganese, cobalt naphthenate, alkoxy aluminum compound; The organoalkoxysilane that aminoalkyls such as 3-aminopropyl triethoxysilane, N-β (aminoethyl) γ-An Bingjisanjiayangjiguiwan replace; Amine compound and salt thereof such as hexylamine, phosphoric acid lauryl amine, tetramethyl guanidine, diazonium bicyclononane; Quaternary ammonium salts such as benzyl triethyl ammonium ammonium acetate; Alkali-metal lower aliphatic hydrochlorates such as Potassium ethanoate, sodium-acetate, lithium oxalate; Dialkyl group oxyamines such as dimethyl hydroxyl amine, diethyl oxyamine; Tetramethyl guanidine propyl trimethoxy silicane, tetramethyl guanidine propyl group methyl dimethoxysilane, tetramethyl guanidine propyl group three (trimethylsiloxy) silane etc. contain the silane of guanidine radicals or siloxanes etc.What be particularly suitable for using is amine compound such as tetramethyl guanidine, diazonium bicyclononane; Tetramethyl guanidine propyl trimethoxy silicane, tetramethyl guanidine propyl group methyl dimethoxysilane, tetramethyl guanidine propyl group three (trimethylsiloxy) silane etc. contain the silane or the siloxanes of guanidine radicals; Tin ester compound thing, tin alkyl ester cpds etc. are not limited to wherein a kind of, also can be that two or more use as mixture.
The use level of these curing catalysts is 0.01～10 mass parts with respect to (A) composition 100 mass parts, is preferably 0.05～5 mass parts.If less than 0.01 mass parts then can not obtain enough curing characteristicss, if surpass 10 mass parts, then the weather resistance variation of composition.
[(D) composition]
Weighting agent as (D) composition is the composition that plays strengthening agent, extender effect in composition of the present invention.As weighting agent, can enumerate particularly through surface treatment or untreated fumed silica, wet method silicon-dioxide, precipitated silica, metal oxide, metal hydroxides, granulated glass sphere, glass hollow ball, resin bead, resin hollow ball etc., and fumed silica, precipitated silica, lime carbonate are preferred the uses.Can use wherein a kind of separately or be used in combination wherein two or more.
The use level of these weighting agents is preferably 1～500 mass parts with respect to (A) composition 100 mass parts, preferred especially 5～250 mass parts.If less than 1 mass parts then can not obtain the effect of extender sometimes, if surpass 500 mass parts, the discharge variation of composition sometimes then, operability worsens.
[other compositions]
Needing under the situation of cementability preferred cooperation the in composition of the present invention as the silane coupling agent of giving the cementability composition.As silane coupling agent, can use known in the industry material easily.Especially preferably has alkoxysilyl as hydrolization group, the material of alkenyloxy silyl, can illustration vinyl three ('beta '-methoxy oxyethyl group) silane, γ-methacryloxypropyl trimethoxy silane, β-(3, the 4-epoxycyclohexyl) ethyl trimethoxy silane, γ-glycidoxypropyltrime,hoxysilane, γ-glycidoxy propyl group methyldiethoxysilane, N-β-(aminoethyl) γ-An Bingjisanjiayangjiguiwan, γ-An Bingjisanyiyangjiguiwan, γ-Qiu Jibingjisanjiayangjiguiwan, γ-glycidoxy propyl group three isopropoxy silane, γ-glycidoxy propyl group methyl diisopropoxy silane etc.Especially preferably use the amine silane coupling agent.
The use level of these silane coupling agents is preferably 0.1～20 mass parts with respect to (A) composition 100 mass parts, preferred especially 0.2～10 mass parts.If it is less than 0.1 mass parts then can not obtain enough cementabilities sometimes,, then unfavorable on price sometimes if surpass 10 mass parts.
In addition, in composition of the present invention, except mentioned component, can also in the scope of not damaging the object of the invention, use common known additives.As additive, can enumerate polyethers as the thixotropy rising agent, silicone oil, isoparaffin as softening agent, as the cross-linking density rising agent by trimethylsiloxy unit and SiO
2The netted polysiloxane that the unit constitutes etc.Also can add tinting materials such as pigment, dyestuff, fluorescent bleaches in case of necessity; Physiologically active additives such as mould inhibitor, antiseptic-germicide, cockroach repellent, marine organisms repellent; As the phenyl silicone oil of bleeding oil, fluoro silicone oil, with immiscible surface-modifying agents such as organic liquid, toluene, dimethylbenzene, solvent evaporates oil, hexanaphthene, methylcyclohexane, the lower boiling isoparaffin equal solvent of organosilicon.
Composition of the present invention uses except can be used as the single-liquid type that is formed by (A), (B), (C), in case of necessity (D) composition mixing, also can make (B) composition and (C) composition pack the two liquid types that form respectively, for example (A), (B), (D) composition and (A), the two liquid types of (C), (D) composition and (A), (B), (D) composition and (C) the two liquid types use that becomes to grade.By forming two liquid types, can guarantee better storage stability.
Can become to assign to obtain organopolysiloxane composition of the present invention with other according to ordinary method uniform mixing above-mentioned (A)～(C) composition, in case of necessity (D) composition.
Thus obtained organopolysiloxane composition of the present invention solidifies very slow, therefore can guarantee the very long operating time, in addition, because the reactive silicon hydride compounds when uncured volatilizees hardly, can be easily as uses such as sealing agent, caking agent, coating agent, cast encapsulants.
The condition of cure of above-mentioned organopolysiloxane composition can be identical with the condition of cure of common room temp solidified condensation cured type silicone rubber composition, in general, can use well under the environment of 5～40 ℃ of temperature, humidity 10～90%RH.
Embodiment
Below, list example and comparative example, the present invention is specifically described, but the present invention is not limited to following embodiment.In following routine medium viscosity is 25 ℃ of values of measuring down with rotational viscosimeter.
[embodiment 1]
At two ends is that dimethyl polysiloxane 100 mass parts of 700mPas, viscosity that two ends seal with trimethoxysilyl by the connection of silicon ethylidene are to add two stannous octoates, 0.2 mass parts in dimethyl polysiloxane 25 mass parts of 700mPas and mix with the viscosity of hydroxyl sealing, thus compositions formulated 1.
[embodiment 2]
Except in embodiment 1, making two ends is that the addition of the dimethyl polysiloxane of 700mPas is outside 50 mass parts by the connection of silicon ethylidene with the viscosity that trimethoxysilyl is sealed, by the mode compositions formulated 2 identical with embodiment 1.
[comparative example 1]
Except in embodiment 1, replacing two ends with methyltrimethoxy silane 5 mass parts is outside dimethyl polysiloxane 25 mass parts of 700mPas by the connection of silicon ethylidene with the viscosity that trimethoxysilyl is sealed, by the mode compositions formulated 3 identical with embodiment 1.
The composition of these embodiment, comparative example is joined in the glass dish, under 23 ± 2 ℃, the atmosphere of 50 ± 5%RH, confirms its solidified nature, solidify one day again after, be heated to 150 ℃, confirm its shape-holding property.The results are shown in table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Comparative example 1 | ||
| Composition 1 | Composition 2 | Composition 3 | ||
| Solidified nature | 1 hour | Liquid | Liquid | Rubbery |
| 2 hours | Liquid | Liquid | Rubbery | |
| 1 day | Rubbery | Rubbery | Rubbery | |
| After 150 ℃ of heating | Kept shape | Kept shape | The surface expands | |
[embodiment 3]
Is 50 at two ends with the viscosity that hydroxyl seals, dimethyl polysiloxane 35 mass parts of 000mPas, colloid lime carbonate 40 mass parts, two ends are that dimethyl polysiloxane 25 mass parts, two ends of 100mPas are 30 by the connection of silicon ethylidene with the viscosity that trimethoxysilyl is sealed with the viscosity of trimethylsiloxy sealing, add two stannous octoates, 0.2 mass parts in dimethyl polysiloxane 20 mass parts of 000mPas and mix, thus compositions formulated 4.
[embodiment 4]
Except in embodiment 3, replace beyond two stannous octoates, 0.2 mass parts with dioctyl tin dilaurate 1 mass parts, by the mode compositions formulated 5 identical with embodiment 3.
[comparative example 2]
Except in embodiment 3, replacing two ends with methyltrimethoxy silane 5 mass parts is 30 by the connection of silicon ethylidene with the viscosity that trimethoxysilyl is sealed, outside dimethyl polysiloxane 20 mass parts of 000mPas, by the mode compositions formulated 6 identical with embodiment 3.
[embodiment 5]
Except in embodiment 3, seal with trimethoxysilyl by the connection of silicon ethylidene with two ends and side chain on have 1 trimethoxysilyl by the silicon ethylidene viscosity be 30, it is 30 by the connection of silicon ethylidene with the viscosity that trimethoxysilyl is sealed that dimethyl polysiloxane 20 mass parts of 000mPas replace two ends, outside dimethyl polysiloxane 20 mass parts of 000mPas, by the mode compositions formulated 7 identical with embodiment 3.
The composition of these embodiment, comparative example is joined in the glass dish, under 23 ± 2 ℃, the atmosphere of 50 ± 5%RH, confirms its solidified nature, solidify one day again after, be heated to 150 ℃, confirm its shape-holding property.In addition, make the thick sheet material of 2mm, under 23 ± 2 ℃, the atmosphere of 50 ± 5%RH, solidify 7 days after, measure the rerum natura of its rubber by JIS-K-6249.The results are shown in table 2.
Table 2
| Embodiment 3 | Embodiment 4 | Comparative example 2 | Embodiment 5 | ||
| Composition 4 | Composition 5 | Composition 6 | Composition 7 | ||
| Solidified nature | 0.5 hour | Liquid | Liquid | Rubbery | Liquid |
| 1 hour | Gel | Liquid | Rubbery | Gel | |
| 1 day | Rubbery | Rubbery | Rubbery | Rubbery | |
| After 150 ℃ of heating | Kept shape | Kept shape | The surface expands | Kept shape | |
| Hardness (hardness A) | 8 | 10 | 20 | 12 | |
| Elongation (%) | 1100 | 950 | 550 | 900 | |
| Tensile strength (MPa) | 1.2 | 1.3 | 1.7 | 1.3 | |
Claims (6)
1, normal temperature cured organic polysiloxane composition is characterized in that containing: (A) molecular chain two ends with diorganopolysiloxanecompositions 100 mass parts of hydroxyl sealing,
(B) have in the molecular chain polysiloxane 1～200 mass parts by the water-disintegrable silyl of alkylidene group keyed jointing,
(C) catalyzer 0.01～10 mass parts.
2, the described normal temperature cured organic polysiloxane composition of claim 1, wherein (A) composition is the diorganopolysiloxanecompositions shown in the following general formula (1),
HO(R
2SiO)
kH (1)
In the formula, R is 1 a valency alkyl of identical or different, non-replacement or replacement, and k is the integer more than 10.
3, claim 1 or 2 described normal temperature cured organic polysiloxane compositions, wherein (B) composition is for being selected from one or more of the polysiloxane shown in following general formula (2)～(4),
(R
1O)
mR
2 3-mSi-R
3-(R
2SiO)
j-R
2Si-R
3-SiR
2 3-m(OR
1)
m (2)
In the formula, R
1For identical or different carbonatoms is that 1～6 alkyl or carbonatoms are 2～10 alkoxyalkyl, R
2Be 1 valency alkyl of identical or different, non-replacement or replacement, R
3For carbonatoms is 1～12 alkylidene group, m is 1～3 integer, and n is the integer more than 1, and j is the integer more than 10, and h is the integer more than 2.
4, claim 1,2 or 3 described normal temperature cured organic polysiloxane compositions is characterized in that also containing (D) weighting agent 1～500 mass parts with respect to (A) composition 100 mass parts.
5, the described normal temperature cured organic polysiloxane composition of claim 4 is characterized in that the weighting agent as (D) composition, is selected from fumed silica, precipitated silica and lime carbonate.
6, each described normal temperature cured organic polysiloxane composition of claim 1～5 that uses as sealing agent, caking agent, coating agent or cast encapsulants.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-324935 | 2004-11-09 | ||
| JP2004324935 | 2004-11-09 | ||
| JP2004324935A JP2006131824A (en) | 2004-11-09 | 2004-11-09 | Room temperature curable organopolysiloxane composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1800262A true CN1800262A (en) | 2006-07-12 |
| CN1800262B CN1800262B (en) | 2011-08-10 |
Family
ID=36725656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510104660 Expired - Fee Related CN1800262B (en) | 2004-11-09 | 2005-11-09 | Organic polysiloxane composition solidifying at room temperature |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2006131824A (en) |
| CN (1) | CN1800262B (en) |
| TW (1) | TWI424027B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076788A (en) * | 2008-05-29 | 2011-05-25 | 蓝星有机硅法国公司 | Article having antifouling properties for aquatic and particularly sea use |
| CN115052924A (en) * | 2020-03-30 | 2022-09-13 | 积水保力马科技株式会社 | Silicone composition and method for producing silicone composition |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265529A (en) * | 2005-02-28 | 2006-10-05 | Shin Etsu Chem Co Ltd | Room temperature curable organopolysiloxane composition |
| JP5015476B2 (en) * | 2006-03-01 | 2012-08-29 | 東レ・ダウコーニング株式会社 | Electrode / electric circuit protective agent composition |
| JP2008120859A (en) * | 2006-11-08 | 2008-05-29 | Toyota Motor Corp | Curing method of sealing material and assembling method of electronic equipment |
| JP4840602B2 (en) * | 2007-09-21 | 2011-12-21 | 信越化学工業株式会社 | Method for curing room temperature curable organopolysiloxane composition |
| JP2011099070A (en) * | 2009-11-09 | 2011-05-19 | Shin-Etsu Chemical Co Ltd | Room-temperature curing organopolysiloxane composition |
| DE102010042712A1 (en) * | 2010-10-20 | 2012-04-26 | Wacker Chemie Ag | Self-adhesive hardener composition |
| JP5644800B2 (en) * | 2012-03-29 | 2014-12-24 | 信越化学工業株式会社 | Two-component mixed organopolysiloxane composition |
| JP2021055012A (en) * | 2019-10-01 | 2021-04-08 | 株式会社カネカ | Curable composition |
| JP2021055011A (en) * | 2019-10-01 | 2021-04-08 | 株式会社カネカ | Curable composition |
| JP2021055018A (en) * | 2019-10-01 | 2021-04-08 | 株式会社カネカ | Curable composition |
| JP2021055010A (en) * | 2019-10-01 | 2021-04-08 | 株式会社カネカ | Curable composition |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4652624A (en) * | 1986-03-03 | 1987-03-24 | Dow Corning Corporation | Room-temperature-curing silicone sealants |
| JP4088764B2 (en) * | 2002-07-01 | 2008-05-21 | 信越化学工業株式会社 | Room temperature curable organopolysiloxane composition |
-
2004
- 2004-11-09 JP JP2004324935A patent/JP2006131824A/en active Pending
-
2005
- 2005-11-08 TW TW94139147A patent/TWI424027B/en not_active IP Right Cessation
- 2005-11-09 CN CN 200510104660 patent/CN1800262B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076788A (en) * | 2008-05-29 | 2011-05-25 | 蓝星有机硅法国公司 | Article having antifouling properties for aquatic and particularly sea use |
| CN102076788B (en) * | 2008-05-29 | 2013-06-12 | 蓝星有机硅法国公司 | Article having antifouling properties for aquatic and particularly sea use |
| CN115052924A (en) * | 2020-03-30 | 2022-09-13 | 积水保力马科技株式会社 | Silicone composition and method for producing silicone composition |
| CN115052924B (en) * | 2020-03-30 | 2024-01-16 | 积水保力马科技株式会社 | Organosilicon composition and method for producing organosilicon composition |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI424027B (en) | 2014-01-21 |
| JP2006131824A (en) | 2006-05-25 |
| CN1800262B (en) | 2011-08-10 |
| TW200621897A (en) | 2006-07-01 |
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