WO2003037987A1 - Composition silicone adhesive reticulable comprenant comme agent thixotropant un compose a fonction amine cyclique portee par une chaine siloxanique - Google Patents
Composition silicone adhesive reticulable comprenant comme agent thixotropant un compose a fonction amine cyclique portee par une chaine siloxanique Download PDFInfo
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- WO2003037987A1 WO2003037987A1 PCT/FR2002/003733 FR0203733W WO03037987A1 WO 2003037987 A1 WO2003037987 A1 WO 2003037987A1 FR 0203733 W FR0203733 W FR 0203733W WO 03037987 A1 WO03037987 A1 WO 03037987A1
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- C08L83/04—Polysiloxanes
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
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- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/26—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen nitrogen-containing groups
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/80—Siloxanes having aromatic substituents, e.g. phenyl side groups
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- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/28—Non-macromolecular organic substances
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/28—Non-macromolecular organic substances
- C08L2666/44—Silicon-containing compounds
Definitions
- the field of the present invention is that of silicone elastomer compositions crosslinkable by addition and / or condensation.
- the polyorganosiloxanes (POS) considered are of the cold vulcanizable type (RTV), knowing that conventionally they are in the form of two-component systems (RTV-2), the vulcanization of which, in the case of crosslinking by addition, can be depending on the use accelerated hot.
- RTV-2 cold vulcanizable type
- These products are particularly known for their applications in the field of molding and reproduction; they can then be shaped by casting, injection, brushing, spraying ... depending on the uses.
- the present invention relates to crosslinkable adhesive silicone elastomer compositions comprising a thixotropic agent of POS type with piperidinyl function, giving these compositions a high flow threshold.
- flow threshold is meant the ability of the product not to flow spontaneously under its own weight.
- RTV type silicone adhesive elastomer compositions are now well known and have been the subject of various applications. Thus, the use of such compositions is known for the bonding of various substrates, of electrical / electronic components or of mechanical parts, in particular in the field of the automobile or of household appliances.
- this composition turns out to be a silicone adhesive composition of choice for the aforementioned applications, it does not have characteristics rheological perfectly adapted for certain particular applications (anti-drip device, shaped joint in place ...) where the method of removal requires a product flow threshold.
- thixotropic additives may be mentioned:
- hydroxylated and amino additives do not induce the increase in the flow threshold desired for all types of compositions in the field.
- amino derivatives inhibit the action of platinum catalysts, used in silicone compositions crosslinkable by addition.
- an objective of the present invention is to develop a crosslinkable silicone elastomer composition, having rheological properties perfectly suited to allow the composition to be used successfully, both for bonding various substrates, and for producing molding operations requiring non-flowing materials.
- Another objective is to obtain a composition which can be crosslinked by non-flowing polyaddition and, in addition, which may be self-adhesive in the case of bonding applications.
- the composition according to the invention must make it possible to obtain a solid assembly which is resistant to low stresses, and this as soon as it is put in place (bonding between the substrates). It must also make it possible to obtain good stability of the tackiness over time.
- another objective is to obtain a composition which can be easily shaped and which is capable of retaining the shape thus formed at least for the time necessary for crosslinking. Finally, this composition must retain good mechanical properties and satisfactory thermal resistance.
- the inventors had the merit of highlighting, in a completely surprising and unexpected manner, that the use in a crosslinkable silicone composition of a compound comprising at least one cyclic amine function, carried by a chain siloxane provides the composition with a strong increase in its flow threshold.
- the inventors are all the more deserving, that they have been against the prejudice according to which, amino compounds are traditionally inhibitors of platinum-based compounds, advantageously used to catalyze the crosslinking of silicone compositions, by addition.
- the present invention satisfies the above objectives, among others, by proposing, first of all, an adhesive silicone composition, crosslinkable of the type of those comprising:
- composition optionally at least one polyorganosiloxane resin carrying siloxyl units Q and / or T and of alkenyl groups, this composition also comprises:
- (VIII) at least one compound comprising at least one cyclic amine function carried on at least one siloxane chain, as a thixotropic additive, modifying the rheological properties of the composition by giving it a high flow threshold.
- the cyclic amine function is a piperidinyl function.
- the compound (VIII) is a polyorganosiloxane having per molecule at least one unit of general formula:
- R are identical or different and represent a monovalent hydrocarbon radical chosen from alkyl radicals having from 1 to 4 carbon atoms, phenyl and trifluoro-3,3,3 propyl;
- X are identical or different and represent a monovalent radical chosen from a hydroxyl group, an alkenyl radical and an alkoxy radical, linear or branched, having from 1 to 3 carbon atoms;
- Z represents a residue containing sterically hindered piperidinyl group (s) chosen from:
- - Ri is a divalent hydrocarbon radical chosen from: • alkylene radicals, linear or branched, having 2 to 18 carbon atoms;
- alkylene-cyclohexylene radicals in which the alkylene part, linear or branched, contains from 2 to 12 carbon atoms and the cyclohexylene part comprises a group -OH and optionally 1 or 2 alkyl radicals having from 1 to 4 carbon atoms;
- R 2 and R 3 have the meanings indicated below and RIO represents an alkylene radical, linear or branched, having 1 to 12 carbon atoms, one of the valential bonds (that of RIO ) being connected to the nitrogen atom of -NR ⁇ -, the other (that of R *) being connected to a silicon atom;
- R 2 are radicals, identical or different, chosen from alkyl radicals, linear or branched, having from 1 to 3 carbon atoms and phenyl;
- R 3 represents a hydrogen atom or the radical R 2 ; and those of formula:
- n represents a number from 2 to 20;
- - U ' represents -O- or -NRU-, RU being a hydrogen atom or an alkyl radical, linear or branched having from 1 to 6 carbon atoms; - R 2 and R 3 have the same meanings as those given in connection with formula (II);
- This polyorganosiloxane (VIII) can also comprise at least one other siloxyl unit of formula: (R) c (X) d VSi (0) 3- (c + c (III)
- V represents: an alkyl radical, linear or branched, having 5 to 20 carbon atoms; a radical of formula - (CH2) p -COO-Rl 2 in which p represents a number of 5 to 20 and R ⁇ 2 represents a linear or branched alkyl radical of 1 to 12 carbon atoms; a radical of formula - (CH2) -O-Rl3 in which q represents a number from 3 to 10 and R ⁇ represents a hydrogen atom, an ethylene oxide chain, a propylene oxide chain, a mixed oxide chain ethylene + propylene oxide or an acyl radical having from 2 to 12 carbon atoms;
- c is a number chosen from 0, 1 and 2;
- d is a number chosen from 0, 1 and 2;
- e is a number chosen from 0, 1, 2 and 3;
- f is a number chosen from 0, 1, 2 and 3;
- the polyorganosiloxane (VIII) is a linear polydiorganosiloxane of average formula:
- Y represents a monovalent radical chosen from the radicals R, Z, V and X;
- R are identical or different and represent a monovalent radical chosen from a radical R and a radical X as defined above with respect to formula (I);
- the compound with piperidinyl function corresponds to the following formula:
- the present compound in the form of an oil advantageously makes it possible to obtain a composition whose Bingham threshold can reach 350 Pa.
- the polyorganosiloxane (I) is by weight one of the essential constituents of the composition used according to the invention.
- it is a product having patterns of formula:
- W is an alkenyl group, preferably vinyl or allyl
- - Z ' is a monovalent hydrocarbon group, free from any unfavorable action on the activity of the catalyst and chosen, preferably, from alkyl groups having from 1 to 8 carbon atoms included, advantageously, from methyl, ethyl, propyl groups and 3,3,3-trifluoropropyl and also among the aryl groups and, advantageously, among the xylyl and tolyl and phenyl radicals,
- - a is 1 or 2
- b is 0, 1 or 2
- a + b is between 1 and 3, preferably between 2 and 3, optionally at least part of the other units are units of average formula:
- this polydiorganosiloxane it is advantageous for this polydiorganosiloxane to have a viscosity at least equal to 100 mPa.s, preferably to 500 mPa.s and more preferably still between 500 and 100,000 mPa.s. Mention may be made, as example of compound (I), of poiydimethylsiloxane.
- the polyorganosiloxane (I) can only be formed of units of formula (VII) or can additionally contain units of formula (VIII). Likewise, it can have a linear, branched, cyclic or network structure. Its degree of polymerization is preferably between 2 and 5000.
- Z ' is generally chosen from methyl, ethyl and phenyl radicals, at least 60 mol% of the radicals Z' being methyl radicals.
- siloxyl units of formula (VII) are the vinyldimethylsiloxane unit, the vinylphenylmethylsiloxane unit and the vinylsiloxane unit.
- siloxyl units of formula (VIII) are the SiO 4/2 , dimethylsiloxane, methylphenylsiloxane, diphenylsiloxane, methylsiloxane and phenylsiloxane units.
- polyorganosiloxanes (I) are dimethylpolysiloxanes with dimethylvinylsilyl ends, methylvinyldimethylpolysiloxane copolymers with trimethylsilyl ends, methylvinyldimethylpolysiloxane copolymers with dimethylvinylsilyl ends, cyclic methylvinylpolysiloxanes.
- the polyorganosiloxane (II) is preferably of the type of those comprising siloxyl units of formula: H d L e SiQ 4 . (d + e) (i ⁇ )
- - L is a monovalent hydrocarbon group, free from any adverse action on the activity of the catalyst and preferably chosen from alkyl groups having from 1 to 8 carbon atoms included and, advantageously, from methyl, ethyl and propyl groups and 3,3,3-trifluoropropyl and also among the aryl groups and, advantageously, among the xylyl and tolyl and phenyl radicals,
- - d is 1 or 2
- e is 0, 1 or 2
- d + e has a value between 1 and 3, - possibly, at least part of the other units being units of average formula:
- L has the same meaning as above and g has a value between 0 and 3, preferably between 2 and 3.
- the dynamic viscosity of this polyorganosiloxane is at least equal to 5, preferably 10, and more preferably still is between 20 and 1000 mPa.s.
- the dynamic viscosity, called “Newtonian”, is the dynamic viscosity which is measured at 25 ° C, in a manner known per se, at a shear speed gradient sufficiently low for the measured viscosity to be independent of the speed gradient.
- polyorganosiloxane (II) mention may be made of poly (dimethylsiloxane) (methylhydrogensiloxy) ⁇ , ⁇ dimethylhydrogensosiloxane.
- the polyorganosiloxane (II) can be formed only of units of formula (IX) or additionally comprises units of formula (X).
- the polyorganosiloxane (II) can have a linear, branched, cyclic or network structure.
- the degree of polymerization is greater than or equal to 2. More generally, it is less than 5,000.
- Group L has the same meaning as group Z above.
- Examples of units of formula (IX) are:
- polyorganosiloxane (II) examples are:
- the ratio of the number of hydrogen atoms bound to silicon in the polyorganosiloxane (I) to the number of alkenyl unsaturated groups of the polyorganosiloxane (II) is between 0.4 and 10, preferably between 0.6 and 5.
- the polyorganosiloxane (I) and / or the polyorganosiloxane (II) can be diluted in a non-toxic organic solvent compatible with silicones.
- the networked polyorganosiloxanes (I) and (II) are commonly called silicone resins.
- the bases of polyaddition silicone compositions may contain only linear polyorganosiloxanes (I) and (II) such as, for example, those described in the patents: US-A-3,220,972, US-A-3,697,473 and US-A -4,340,709 or contain both branched or networked polyorganosiloxanes (I) and (II), such as those described in the patents: US-A-3,284,406 and US-A-3,434,366.
- linear polyorganosiloxanes (I) and (II) such as, for example, those described in the patents: US-A-3,220,972, US-A-3,697,473 and US-A -4,340,709
- branched or networked polyorganosiloxanes (I) and (II) such as those described in the patents: US-A-3,284,406 and US-A-3,434,366.
- the catalysts (III) are also well known.
- the platinum and rhodium compounds are preferably used. It is possible, in particular, to use the complexes of platinum and of an organic product described in patents US-A-3,159,601, US-A-
- EP-A-0 190 530 the complexes of platinum and vinyl organosiloxanes described in the US-A-3,419,593, US-A-3,715,334, US-A-3,377,432 and US-A-3,814,730.
- the generally preferred catalyst is platinum.
- the quantity by weight of catalyst (III), calculated by weight of platinum-metal is generally between 2 and 400 ppm, preferably between 5 and 200 ppm based on the total weight of the polyorganosiloxanes (I) and (II ).
- the composition can be used for bonding.
- an adhesion promoter IV
- composition when used for molding, it does not include an adhesion promoter.
- the promoter (IV), when used, comprises: (IV.l) at least one alkoxylated organosilane containing, per molecule, at least one C 2 -C 6 alkenyl group, (IV.2) at least one compound organosilicon comprising at least one epoxy radical,
- the alkoxylated organosiloxane (IV.l) corresponds to the following general formula:
- R " 1 , R ' 2 , R' 3 are hydrogenated or hydrocarbon radicals identical or different from each other and preferably represent hydrogen, a linear or branched C ⁇ Q j alkyl or a phenyl optionally substituted by at least one C [ -C 3 alkyl,
- A is a linear or branched C, -C 4 alkylene or a divalent group of formula -CO-O-alkylene ..., where the alkylene residue is as defined above and the valence - is linked to Si via G ,
- L is a valence bond or oxygen
- R ' 4 and R' 5 are the same or different radicals and represent an alkyl in
- vinyltrimethoxysilane is a particularly suitable compound (IV.l).
- the organosilicon compound (IV.2), of the promoter (IV) is chosen:
- R ' 6 is a linear or branched C [ -C 4 ] alkyl radical
- J R ' 7 is a linear or branched alkyl radical
- A. y is equal to 0, 1, 2 or 3, preferably to 0 or 1 and, more preferably still to 0, X 'is equal to:
- R ′ i o can alternately constitute together with the two carbons carrying the epoxy, an alkyl ring having 5 to 7 members,
- At least some of the other units of these polydiorganosiloxanes are units of average formula:
- the compounds (IV.2) are therefore preferably epoxyalkoxysilicones and more preferably still epoxyalkoxymonosilanes (IV. 2 a). Examples of such compounds (IV.2) that may be mentioned: 3-glycidoxypropyltrimethoxysilane (GLYMO) - or 3,4-epoxycyclohexylethyltrimethoxysilane.
- the preferred products are those in which the metal M of the chelate and / or the alkoxide (IV.3) is chosen from the list next: Ti, Zr, Ge, Li, Mn. It should be emphasized that titanium is more particularly preferred. One can associate it, for example, an alkyl radical of butyl type.
- the adhesion promoter (IV) is for example:
- VTMO vinyltrimethoxysilane
- GLYMO 3-Glycidoxypropyltrimethoxysilane
- the charge (V) used consists of products chosen from siliceous materials (or not).
- siliceous materials they can play the role of reinforcing or semi-reinforcing filler.
- the reinforcing siliceous fillers are chosen from colloidal silicas, combustion and precipitation silica powders or their mixtures.
- These powders have an average particle size generally less than 0.1 ⁇ m and a BET specific surface greater than 50 m 2 / g, preferably between 100 and 350 m 2 / g.
- Semi-reinforcing siliceous fillers such as diatomaceous earth or ground quartz can also be used.
- non-siliceous mineral materials can act as a semi-reinforcing or tamping mineral filler.
- these non-siliceous fillers which can be used alone or as a mixture are carbon black, titanium dioxide, aluminum oxide, hydrated alumina, expanded vermiculite, unexpanded vermiculite, calcium carbonate, l zinc oxide, mica, talc, zirconates, iron oxide, barium sulfate and slaked lime.
- These fillers have a particle size generally between 0.001 and 300 ⁇ m and a BET surface area of less than 100 m 2 / g.
- the filler used is quartz or a mixture of quartz and silica.
- the load can be treated with all or part of at least one and / or the other of the compounds (IV.l) to (IV.3) of the promoter (IV).
- the filler can advantageously be used in the form of the suspension obtained by treating the filler by applying the method in accordance with the teaching of the patent application WO -A-98/58997, providing for a two-stage treatment of the charge with a compatibilizing agent (chosen for example: in the case of the first treatment, from a silazane, a hydroxylated siloxane, an amine, an organic acid; and as regards the second treatment time, among a silazane) by operating in the presence of the component POS (I).
- a compatibilizing agent chosen for example: in the case of the first treatment, from a silazane, a hydroxylated siloxane, an amine, an organic acid; and as regards the second treatment time, among a silazane
- POS component POS
- a neutralizing agent such as for example a weak acid or a silica filler such as ground quartz can be added to the dispersion.
- an amount of filler of between 20 and 50, preferably between 25 and 35% by weight relative to all of the constituents of the composition.
- the silicone elastomer composition comprises at least one retarder (VI) of the addition reaction (crosslinking inhibitor), chosen from the following compounds: polyorganosiloxanes, advantageously cyclic and substituted with at least one alkenyl, tetramethylvinyltetrasiloxane being particularly preferred, pyridine, - organic phosphines and phosphites, unsaturated amides, alkyl maleates and acetylenic alcohols.
- acetylenic alcohols (Cf. FR-B-1 528 464 and FR-A-2 372 874), which are part of the preferred hydrosilylation reaction thermal blockers, have the formula:
- R 15 is a linear or branched alkyl radical, or a phenyl radical
- R 16 is H or a linear or branched alkyl radical, or a phenyl radical
- the total number of carbon atoms contained in R 15 and R 16 being at least 5, preferably from 9 to 20.
- Said alcohols are preferably chosen from those having a boiling point above 250 ° C.
- Such a retarder (VI) is present at a rate of 3000 ppm at most, preferably at the rate of 100 to 2000 ppm relative to the total weight of the organopolysiloxanes (I) and (II).
- composition used according to the invention may comprise at least one unsaturated POS resin (VII) comprising at least two alkenyl residues, preferably vinyls per molecule.
- VI unsaturated POS resin
- the POS resin (VII) comprises in its structure from 0.1 to 20% by weight of alkenyl group (s), said structure having at least two different units chosen from units of types M, D, T and Q, at least one of these patterns being a pattern of type T or Q.
- this resin (VII) preferably corresponds to one of the following three formulas:
- the resin (VII) participates in establishing the rheological, mechanical and adhesive properties of the composition. It is known that the siloxyl units Q play a relatively important role in this regard. Thus, in accordance with an advantageous arrangement of the invention.
- the resin (VII) contains units Q at a rate of at least 5%, preferably at least 7%, and even more preferably at a rate of 8 to 30%.
- the resin (VII) comprises siloxy units T.
- the silicone elastomer composition can be added with various conventional additives such as, for example, the dyes.
- composition according to the invention comprises at least one reinforcing filler, such as a silicic filler or a paste.
- the composition used according to the invention involves the constituents (I) to (VIII) in the following proportions, in% by weight on a dry basis relative to the total mass: (I) l to 80 preferably 10 to 60
- the present invention relates to a two-component precursor system of the silicone elastomer composition described above.
- Such a precursor system is presented in two distinct parts A and B, intended to be mixed to form the composition, one of these parts A or B comprising the catalyst (III) and a single species (I) or (II) of polyorganosiloxane.
- Another characteristic of this precursor system is that its part A or B containing the compound (IV.l) of the promoter (IV) does not include the catalyst (III), that the resin (VII) can be used in the part A or part B or in both parts A and B, part A or B containing the POS (II) and the resin (VII) being free of catalyst (III), and that finally the thixotropic compound (VIII) can be used in part A or B, comprising the catalyst (III).
- the viscosity of parts A and B and their mixture can be adjusted by varying the amounts of the constituents and by choosing polyorganosiloxanes of different viscosity.
- parts A and B form a ready-to-use silicone elastomer composition which can be applied to the substrates to be bonded or coated by any suitable means (for example doctor blade, nozzle, spray gun , brush, screen printing ).
- the crosslinking of the composition applied to the support to be coated can be caused by thermal means and / or infrared radiation.
- the substrates which can be bonded by the composition are made of thermoplastic or thermosetting polymer, preferably of phenoplast, of polyamide, of polyester, of ABS, of polycarbonate, of PVC, polyether, polyolefin or epoxy resin.
- the substrates can also be metallic, it can be e.g. raw or treated aluminum, raw or treated steels, or lacquered metals.
- composition according to the invention is self-adhesive on aluminum (type AG3) and on steel (type Sollac R 1426) with a shear strength of 1 to 5 MPa and a 100% cohesive break in all cases.
- bonding applications in the automotive industry can be:
- this field of application can also be that of bonding of electrical / electronic components, in particular in household appliances.
- the field of application can also be that of molding shapes to be reproduced.
- the low dripping of the composition according to the invention gives it a very particular interest for its application on parts or supports to be reproduced and therefore which need to be molded.
- the examples which follow describe the preparation of the crosslinkable silicone composition according to the invention. These examples will highlight its advantages. They refer to the drawings in which: FIG. 1 represents the curve of the evolution of the viscosity and the Bingham threshold of a composition, part A of the two-component comprising 2.5% of silica 200 m 2 / g pretreated and additive with a POS oil with piperidinyl function.
- FIG. 2 represents the curve of the evolution of the viscosity and the Bingham threshold of a composition, part A of the two-component comprising 10% of a dispersion of silica treated in situ and added with a POS oil with piperidinyl function.
- the bicomponent is obtained by mixing at room temperature 100 parts of A and 100 parts of B.
- the product is implemented using a pneumatic gun allowing the product contained in two-component cartridges (2x200cc) to be extruded: mixing is carried out using a static mixer placed immediately at the outlet of the cartridge.
- the rheological and mechanical properties are evaluated by additivation of part A of the bicomponent, with a POS oil with piperidinyl function (VIII). Part B remains the same.
- the piperidinyl-functional POS has the formula:
- the mixture is homogenized by hand using a spatula.
- the rheological properties were measured on a CARRI MED rheometer, with a cone of 2.0cm diameter and an angle of 1 °.
- the flow threshold is determined by the computer of the apparatus by applying a Bingham fluid model.
- Example 2 is reproduced except that different parts A are prepared, each comprising a different rate of reinforcing filler provided by the dispersion of silica.
- POS oil with piperidinyl function as defined in Example 2, at rates of 0.5, 1 and 2%.
- the dispersion of silica treated in situ is obtained as follows: In a laboratory mixer with a Z-arm, the following are introduced:
- Example 2 The various compositions described in Example 2 were the subject of a viscosity and Bingham threshold measurement after 0, 2, 7, 21, 50, 80 and 120 days of storage, in order to study the evolution in the time of the rheological properties, of the additive compositions relative to the control composition and therefore of determining the effects of the POS oil with piperidinyl function after storage.
- This evolution is represented in the form of a curve in FIG. 1.
- the solid curves are the viscosity curves while the dashed curves are those of the Bingham threshold.
- the legend of the various symbols is as follows:
- part A comprising 2.5% of silica 200m 2 / g pretreated
- part A comprising 2.5% of silica 200m 2 / g pretreated and 0.5% of oil
- part A comprising 2.5% pretreated silica 200m 2 / g and 1% POS oil with piperidinyl function
- part A comprising 2.5% of pre-treated silica 200m 2 / g and 2% POS oil with piperidinyl function.
- part A of the bicomponent which comprises 200 m 2 / g pretreated as an additive of silica.
- Part A of the bicomponent according to the invention therefore has rheological properties which are stable over time.
- Example 5 is reproduced except that the parts A are equivalent to those tested in Example 4 and not include only a single rate of dispersion of silica at 10%.
- FIG. 2 The evolution over time of the rheological properties of the different compositions is represented in FIG. 2.
- the solid curves are the viscosity curves while the dashed curves are those of the Bingham threshold.
- the legend of the various symbols is as follows: m control (part A comprising 10% of silica dispersion treated in situ) part A comprising 10% of silica dispersion treated in situ and 0.5% POS oil with piperidinyl function part A comprising 10% dispersion of silica treated in situ and 1% POS oil with piperidinyl function
- part A comprising 10% dispersion of silica treated in situ and 2% POS oil with piperidinyl function.
- composition developed by the applicant exhibits improved rheological properties, while retaining a viscosity allowing easy handling, first-order mechanical properties.
- the use of reinforcing fillers significantly improves the rheological properties, since the value of the flow threshold is multiplied by 4, and this without modifying the viscosity or the mechanical properties.
- the composition according to the invention, and in particular the part A which constitutes it has very good stability over time.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02785565A EP1446454A1 (fr) | 2001-10-31 | 2002-10-30 | Composition silicone adhesive reticulable comprenant comme agent thixothropant un compose a fonction amine cyclique portee par une chaine siloxanique |
BR0213917-0A BR0213917A (pt) | 2001-10-31 | 2002-10-30 | Composição de silicone adesiva reticulável, sistema bicomponente e usos da composição |
US10/493,939 US20050020738A1 (en) | 2001-10-31 | 2002-10-30 | Crosslinkable adhesive silicone composition comprising as gelling agent a compound with cyclic amine function borne by a siloxane chain |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0114151A FR2831548B1 (fr) | 2001-10-31 | 2001-10-31 | Composition silicone adhesive reticulable comprenant comme agent thixotropant un compose a fonction amine cyclique portee par une chaine siloxanique |
FR01/14151 | 2001-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003037987A1 true WO2003037987A1 (fr) | 2003-05-08 |
Family
ID=8868973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/003733 WO2003037987A1 (fr) | 2001-10-31 | 2002-10-30 | Composition silicone adhesive reticulable comprenant comme agent thixotropant un compose a fonction amine cyclique portee par une chaine siloxanique |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050020738A1 (fr) |
EP (1) | EP1446454A1 (fr) |
BR (1) | BR0213917A (fr) |
FR (1) | FR2831548B1 (fr) |
WO (1) | WO2003037987A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2879612A1 (fr) * | 2004-12-21 | 2006-06-23 | Rhodia Chimie Sa | Composition elastomere silicone, adhesive, monocomposante et reticulable par polyaddition |
WO2012032231A1 (fr) | 2010-09-06 | 2012-03-15 | Bluestar Silicones France | Composition silicone pour mousse élastomère |
EP2662411A2 (fr) * | 2011-01-06 | 2013-11-13 | LG Chem, Ltd. | Composition durcissable |
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US20040231815A1 (en) * | 2003-04-25 | 2004-11-25 | Rhodia Chimie | Novel water-resistant, repulpable and hydrophilic paper having a soft feel |
WO2010078235A1 (fr) * | 2008-12-30 | 2010-07-08 | Bluestar Silicones | Compositions de revêtement et tissus recouverts avec ces compositions |
JP5781511B2 (ja) | 2011-02-04 | 2015-09-24 | 株式会社Adeka | ヒンダードアミン骨格を有する化合物及び樹脂組成物 |
EP3077578A4 (fr) | 2013-12-05 | 2017-07-26 | Honeywell International Inc. | Solution de méthanesulfonate stanneux à ph ajusté |
CA2951437C (fr) | 2014-07-07 | 2022-03-15 | Honeywell International Inc. | Materiau d'interface thermique avec agent piegeur d'ions |
SG11201704238YA (en) | 2014-12-05 | 2017-06-29 | Honeywell Int Inc | High performance thermal interface materials with low thermal impedance |
DE102015201099A1 (de) * | 2015-01-22 | 2016-07-28 | Wacker Chemie Ag | Vernetzbare Beschichtungsmassen auf Basis von organyloxysilanterminierten Polymeren |
US10312177B2 (en) | 2015-11-17 | 2019-06-04 | Honeywell International Inc. | Thermal interface materials including a coloring agent |
BR112018067991A2 (pt) | 2016-03-08 | 2019-01-15 | Honeywell Int Inc | material de interface térmica, e componente eletrônico |
JP6519502B2 (ja) * | 2016-03-11 | 2019-05-29 | 信越化学工業株式会社 | ヒンダードアミノ基含有有機ケイ素化合物、これを含む組成物およびヒンダードアミノ基含有有機ケイ素化合物の製造方法 |
US10501671B2 (en) | 2016-07-26 | 2019-12-10 | Honeywell International Inc. | Gel-type thermal interface material |
EP4243143A3 (fr) | 2017-02-08 | 2023-11-01 | Elkem Silicones USA Corp. | Bloc-batterie secondaire à gestion thermique améliorée |
US11041103B2 (en) | 2017-09-08 | 2021-06-22 | Honeywell International Inc. | Silicone-free thermal gel |
US10428256B2 (en) | 2017-10-23 | 2019-10-01 | Honeywell International Inc. | Releasable thermal gel |
US11072706B2 (en) | 2018-02-15 | 2021-07-27 | Honeywell International Inc. | Gel-type thermal interface material |
US11373921B2 (en) | 2019-04-23 | 2022-06-28 | Honeywell International Inc. | Gel-type thermal interface material with low pre-curing viscosity and elastic properties post-curing |
EP4055085A1 (fr) * | 2019-11-08 | 2022-09-14 | Henkel AG & Co. KGaA | Adhésif de silicone à deux composants résistant aux températures élevées |
KR20220152526A (ko) * | 2019-12-20 | 2022-11-16 | 엘켐 실리콘즈 프랑스 에스에이에스 | 실리콘 엘라스토머 물품의 적층 제조 방법 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5540952A (en) * | 1993-12-27 | 1996-07-30 | Rhone-Poulenc Chimie | Non-yellowing textile softening process in which a composition comprising a polyorganosiloxane is used |
FR2745825A1 (fr) * | 1996-03-06 | 1997-09-12 | Rhone Poulenc Chimie | Procede pour adoucir et rendre non jaunissant et hydrophile une matiere textile dans lequel on utilise une composition comprenant un polyorganosiloxane |
EP0924251A1 (fr) * | 1997-12-18 | 1999-06-23 | Montell North America Inc. | Composition de polyoléfine ductile, résistante aux rayons gamma et articles produits à partir de celle-ci |
FR2775481A1 (fr) * | 1998-02-27 | 1999-09-03 | Rhodia Chimie Sa | Composition silicone adhesive reticulable et utilisation de cette composition pour le collage de substrats divers |
WO2000050491A1 (fr) * | 1999-02-24 | 2000-08-31 | Crompton Corporation | Siloxanes modifiés par une amine hétérocyclique |
WO2001025380A1 (fr) * | 1999-10-05 | 2001-04-12 | Ciba Specialty Chemicals Holding Inc. | Compositions adoucissantes pour tissu |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1148080A1 (fr) * | 2000-04-19 | 2001-10-24 | Ciba Spezialitätenchemie Pfersee GmbH | Mélanges à base d'organopolysiloxanes pour le traitement de matériaux fibreux |
FR2811670B1 (fr) * | 2000-07-13 | 2004-05-14 | Rhodia Chimie Sa | Stabilisation de compositions polymeriques, organosiliciques ou silicone |
US7651642B2 (en) * | 2001-07-23 | 2010-01-26 | Momentive Performance Materials Inc. | Stabilized polyorganosiloxane composition |
US6670413B1 (en) * | 2002-06-05 | 2003-12-30 | Mcdermott Phillip J. | Thixotropic catalyst for condensation cure siloxane materials |
-
2001
- 2001-10-31 FR FR0114151A patent/FR2831548B1/fr not_active Expired - Fee Related
-
2002
- 2002-10-30 WO PCT/FR2002/003733 patent/WO2003037987A1/fr not_active Application Discontinuation
- 2002-10-30 US US10/493,939 patent/US20050020738A1/en not_active Abandoned
- 2002-10-30 EP EP02785565A patent/EP1446454A1/fr not_active Withdrawn
- 2002-10-30 BR BR0213917-0A patent/BR0213917A/pt not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5540952A (en) * | 1993-12-27 | 1996-07-30 | Rhone-Poulenc Chimie | Non-yellowing textile softening process in which a composition comprising a polyorganosiloxane is used |
FR2745825A1 (fr) * | 1996-03-06 | 1997-09-12 | Rhone Poulenc Chimie | Procede pour adoucir et rendre non jaunissant et hydrophile une matiere textile dans lequel on utilise une composition comprenant un polyorganosiloxane |
EP0924251A1 (fr) * | 1997-12-18 | 1999-06-23 | Montell North America Inc. | Composition de polyoléfine ductile, résistante aux rayons gamma et articles produits à partir de celle-ci |
FR2775481A1 (fr) * | 1998-02-27 | 1999-09-03 | Rhodia Chimie Sa | Composition silicone adhesive reticulable et utilisation de cette composition pour le collage de substrats divers |
WO2000050491A1 (fr) * | 1999-02-24 | 2000-08-31 | Crompton Corporation | Siloxanes modifiés par une amine hétérocyclique |
WO2001025380A1 (fr) * | 1999-10-05 | 2001-04-12 | Ciba Specialty Chemicals Holding Inc. | Compositions adoucissantes pour tissu |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2879612A1 (fr) * | 2004-12-21 | 2006-06-23 | Rhodia Chimie Sa | Composition elastomere silicone, adhesive, monocomposante et reticulable par polyaddition |
WO2006067294A1 (fr) * | 2004-12-21 | 2006-06-29 | Rhodia Chimie | Composition elastomere silicone, adhesive, monocomposante et reticulable par polyaddition |
KR100916956B1 (ko) * | 2004-12-21 | 2009-09-14 | 로디아 쉬미 | 중첨가에 의해 가교가능한 접착성 규소 탄성체 단일-성분조성물 |
US8557942B2 (en) | 2004-12-21 | 2013-10-15 | Bluestar Silicones France Sas | Single-component silicone elastomer compositions crosslinkable into self-adhesive state |
WO2012032231A1 (fr) | 2010-09-06 | 2012-03-15 | Bluestar Silicones France | Composition silicone pour mousse élastomère |
EP2662411A2 (fr) * | 2011-01-06 | 2013-11-13 | LG Chem, Ltd. | Composition durcissable |
EP2662411A4 (fr) * | 2011-01-06 | 2014-09-10 | Lg Chemical Ltd | Composition durcissable |
Also Published As
Publication number | Publication date |
---|---|
FR2831548A1 (fr) | 2003-05-02 |
FR2831548B1 (fr) | 2004-01-30 |
US20050020738A1 (en) | 2005-01-27 |
BR0213917A (pt) | 2004-08-31 |
EP1446454A1 (fr) | 2004-08-18 |
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