WO1996016127A1 - Nouveaux composes silicones a fonctions amines lineaires steriquement encombrees, utiles pour la stabilisation lumiere et thermique des polymeres - Google Patents
Nouveaux composes silicones a fonctions amines lineaires steriquement encombrees, utiles pour la stabilisation lumiere et thermique des polymeres Download PDFInfo
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- WO1996016127A1 WO1996016127A1 PCT/FR1995/001502 FR9501502W WO9616127A1 WO 1996016127 A1 WO1996016127 A1 WO 1996016127A1 FR 9501502 W FR9501502 W FR 9501502W WO 9616127 A1 WO9616127 A1 WO 9616127A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/21—Cyclic compounds having at least one ring containing silicon, but no carbon in the ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
- C07C215/02—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C215/04—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated
- C07C215/06—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic
- C07C215/08—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic with only one hydroxy group and one amino group bound to the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0834—Compounds having one or more O-Si linkage
- C07F7/0838—Compounds with one or more Si-O-Si sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- 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
- C08G77/38—Polysiloxanes modified by chemical after-treatment
- C08G77/382—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon
- C08G77/388—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon containing nitrogen
Definitions
- the present invention relates, in its first object, to novel silicone compounds comprising per molecule at least one sterically hindered linear amine function linked by a Si-O-C or Si-C bond to the silicon atom; it also relates, in its first subject, to silicone compounds comprising per molecule at least one sterically hindered linear amine function linked to the silicon atom by an Si-OC or Si-C bond, and at least one other compatibilizing function linked to the silicon through an Si-C bond. It also relates, in a second object, to processes for the preparation of said silicone compounds. It also relates, in a third object, to the use of such compounds in polymers to improve their resistance against degradation under the effect of ultra-violet (UV) radiation, oxygen in the air and heat. .
- UV ultra-violet
- organic polymers and more particularly polyolefins and polyalkadienes, undergo degradation when they are subjected to external agents and in particular to the combined action of air and solar ultraviolet radiation.
- This degradation is generally limited by the introduction into the polymer of small amounts of stabilizing agents.
- sterically hindered amines in particular tetramethyl-2,2,6,6 piperidines, are currently among the most effective.
- the present invention relates, in its first object, to a polyorganosiloxane comprising per molecule at least 3 siloxy units, at least one of which is a functional siloxyl unit of formula:
- R " ! are identical or different and represent a monovalent hydrocarbon radical chosen from alkyl radicals, linear or branched, having from 1 to 4 carbon atoms and phenyl;
- A is a simple valence bond or an oxygen atom
- the symbol Z represents a monovalent group, the free valence of which is carried by a carbon atom, comprising a secondary or tertiary amine function, included in a linear hydrocarbon chain comprising from 9 to 40 carbon atoms, in which the two atoms carbon of the chain located in the ⁇ positions and with respect to the nitrogen atom do not contain a hydrogen atom; • a is a number chosen from 0, 1 and 2.
- the polyorganosiloxane can also have at least one other functional unit of formula:
- W represents a monovalent group with a compatibilizing function chosen from: an alkyl radical, linear or branched, having more than 4 carbon atoms; a radical of formula -R ⁇ -COO-R ⁇ in which R ⁇ represents an alkylene radical, linear or branched, having 5 to 20 carbon atoms and R3 represents an alkyl radical, linear or branched, having 1 to 12 atoms of carbon ; a radical of formula -R 4 -O- (R5-O) C -RE> in which R 4 represents an alkylene radical, linear or branched, having 3 to 15 carbon atoms, R ⁇ represents an alkylene radical, linear or branched, having 1 to 3 carbon atoms, c is a number from 0 to 10 and R6 represents a hydrogen atom, an alkyl radical, linear or branched having from 1 to 12 carbon atoms or an acyl radical -CO-R 7 where R 7 represents a linear or branched alkyl radical having
- b is a number chosen from 0, 1 and 2.
- siloxyl unit (s) of the polyorganosiloxane corresponds (s) to the formula:
- d is a number chosen from 0, 1, 2 and 3;
- siloxy units of formula (I) when there are more than two, can be identical or different from one another; the same remark also applies to the siloxyl units of formulas (II) and (III).
- linear amino functions the monovalent groups Z not equipped with the ball joint A by means of which they are linked to the silicon atoms;
- the polyorganosiloxanes according to the invention can therefore have a linear, cyclic, branched structure (resin) or a mixture of these structures.
- linear polymers when linear polymers are involved, these can optionally have up to 50 mol% of branching ["T" type units (RSi ⁇ 3 / 2) and / or "Q (SiO 4/2 )].
- the preferred radicals R 1 are: methyl, ethyl, n-propyl, isopropyl, n-butyl; more preferably, at least 80 mol% of the radicals R 1 are methyls.
- R8 represents a divalent organic radical of formula:
- B ⁇ is an alkylene residue, linear or branched, having from 1 to 10 carbon atoms, with f being a number equal to 0 or 1;
- radicals R 9 and R 1 0 are chosen from alkyl radicals, linear or branched, having from 1 to 4 carbon atoms, phenyl and benzyl; • R 1 1 , which may be identical to R 9 and / or R 1 0, is chosen from a hydrogen atom, alkyl radicals, linear or branched, having from 1 to 3 carbon atoms and an O- radical;
- R ' ' 7 represents a divalent radical of formula:
- R 2 is chosen from a hydrogen atom and the radicals represented by R 9 and
- B 3 is a divalent residue chosen from alkylene radicals, linear or branched, having from 1 to 10 carbon atoms and alkenylene radicals, linear or branched, having from 2 to 10 carbon atoms and comprising one or more unsaturation (s ) ethylenic (s) in the chain, with g being a number equal to 0 or 1;
- R20 which may be identical to R 1 8 and / or R 19 , is chosen from a hydrogen atom and the radicals represented by R " ! 1 in formula (IV); • R 21 represents a radical -CR 24 R25R26 0 ⁇
- R10 is chosen from linear alkyl radicals having from 1 to 3 carbon atoms.
- R 17 is chosen from divalent radicals of formulas: - CCH3R 22 - (B 3 ) g - where R 22 is a hydrogen atom and B 3 is a divalent residue of formula - (CH2) j - with i being a number from 1 to 6;
- R18, R19 and R24 ] R25 t R26 are methyl groups; and • R 2 ⁇ represents a hydrogen atom.
- the preferred optional compatibilizing functions W are chosen: from an alkyl radical, linear or branched, having 5 to 18 carbon atoms; a radical of formula -R 2 -COO-R 3 in which R 2 represents an alkylene radical, linear or branched, having from 8 to 12 carbon atoms and R 4 represents an alkyl radical, linear or branched, having from 1 to 6 carbon atoms; a radical of formula -R 4 -O- (R5-O) c -R6 in which R 4 represents an alkylene radical, linear or branched, having 3 to 6 carbon atoms, R ⁇ represents a linear or branched alkylene radical having from 2 to 3 carbon atoms, c is a number from 0 to 6 and R ⁇ represents a hydrogen atom, an alkyl radical, linear or branched, having from 1 to 6 carbon atoms or an acyl radical -CO-R 7 where R 7 represents an alkyl radical, linear or branched, having from 1 to 5 carbon
- the compatibilizing functions W are chosen from the n-octyl, n-undecyl, n-dodecyl, n-tridecyl, methyl or ethyl decamethylene carboxylate radicals.
- the present invention taken in its first object, aims even more precisely:
- Y represent a monovalent radical chosen from R 1 , X, W and a hydrogen atom
- m is a whole or fractional number ranging from 0 to 180;
- n is a whole or fractional number ranging from 0 to 180;
- the sum m + n + p + q is in the range from 5 to 100; the ratio 100 m / m + n + p + q + 2 ⁇ 0.5; and optionally at least one of the substituents Y represents the radical W;
- r is a whole or fractional number ranging from 1 to 9;
- polymers of formula (V) which are preferred (so-called PL1 polymers) or very preferred (so-called PL2 polymers), are those for which:
- n is a whole or fractional number ranging from 0 to 90;
- the polymers of formula (VI), which are preferred (so-called PC1 polymers) or very preferred (so-called PC2 polymers), are those for which: r is an integer or fractional number ranging from 1 to 4.5; • s is a whole or fractional number ranging from 0 to 4.5; t is an integer or fraction ranging from 0 to 0.25; u is a whole or fractional number ranging from 0 to 2.5; the sum r + s + t + u is a whole or fractional number ranging from 3 to 5; the radicals R 1 , X and W simultaneously have the preferred definitions (in the case of PC1 polymers) or the more preferred definitions (in the case of PC2 polymers) given above with respect to each of them.
- the polymers of formula (V), which are especially well suited (so-called PLS1 polymers) or especially well (so-called PLS2 polymers), are the polymers PL1 or PL2 defined above for which the symbol n is a number ranging from 1 to 90 .
- PCS1 or PCS2 polymers are the PC1 or PC2 polymers defined above for which the symbol s is a number ranging from 1 to 4.5.
- the optionally mixed organopolysiloxanes of the invention without a ball joint can be obtained from, and this constitutes a first modality of the second subject of the invention:
- the optionally mixed polyorganosiloxanes of the invention without ball joint can be obtained by using: in the case of polymers with amine function (s) only: an addition reaction (hydrosilylation), or in the case of mixed polymers with amine function (s) ) and with compatibilizing function (s): two simultaneous or successive addition reactions (hydrosilylations), starting from: corresponding organohydrogenopolysiloxanes (H) free of the Z and W functions, of the compound (s) ethylenically unsaturated organic (s) at the end of the chain ( ⁇ ) from which the Z function (s) are derived and optionally from the ethylenically unsaturated compound (s) at the end chain ( ⁇ ) from which the function (s) W are derived.
- hydrosilylation reactions can be carried out at a temperature of the order of 20 to 200 ° C, preferably of the order of 60 to 120 ° C. in the presence of a catalyst based on a platinum group metal; mention may in particular be made of the platinum derivatives and complexes described in US-A-3 715334. US-A-3 814730, US-A-3 159601, US-A-3 159662.
- the amounts of catalyst used are from 1 to 300 parts per million, expressed as metal with respect to the reaction medium.
- the amounts of reagents that can be used generally correspond to a molar ratio [( ⁇ ) + optionally ( ⁇ )] / SiH [of (H)] which is of the order of 1 to 5, preferably of the order from 1 to 2.
- the hydrosilylation reactions can take place in bulk or, preferably, in a volatile organic solvent such as toluene, xylene, methylcyclohexane, tetrahydrofuran, heptane, octane or isopropanol; the reaction medium can also contain a buffering agent consisting in particular of an alkaline salt of a monocarboxylic acid such as for example sodium acetate.
- a volatile organic solvent such as toluene, xylene, methylcyclohexane, tetrahydrofuran, heptane, octane or isopropanol
- the reaction medium can also contain a buffering agent consisting in particular of an alkaline salt of a monocarboxylic acid such as for example sodium acetate.
- the optionally crude mixed polyorganosiloxanes which are obtained can be purified in particular by passing over a column filled with an ion exchange resin and / or by simple devolatilization of the reactants introduced in excess and possibly of the solvent used, by heating operated between 100 and 180 ° C under reduced pressure.
- organohydrogenopolysiloxanes (H) used for example in the preparation of linear mixed polydiorganosiloxanes of formula (V) are those of formula:
- organohydrogenopolysiloxanes (H) used for example in the preparation of the cyclic mixed polydiorganosiloxanes of formula (VI) are those of formula:
- w is an integer or fractional number equal to r + s + 1;
- organohydrogenpolysiloxanes (H) of formulas (VII) and (VIII) are known in the literature and, for some, they are commercially available.
- the unsaturated organic compounds ( ⁇ ), from which the Z functions are derived are preferably those of formula:
- N-tertiobutyl methyl-1, ethyl-1, butene-3 yl
- N-tertiobutyl dimethyl-1, 1, propyne-2 yDamine
- N-tertiobutyl dimethyl-1 J, propene-2 yDamine.
- the unsaturated amines ( ⁇ ) are known compounds which are described, in particular in US-A-3,067,101. They can be prepared according to a first process, which is described in this prior art, consisting of the following:
- R 26 has the formula CH ⁇ C- (B 2 ) f- and where it is desired to obtain an amine equipped at the end of the chain with ethylenic unsaturation, it will then be possible to carry out a complementary step (3) consisting subjecting the amine (IX) formed above to acetylenic unsaturation, to a catalytic semi-hydrogenation to yield the amine of formula (IX) with R 26 being the radical CH2 ⁇ CH- (B) f -.
- Other methods which are advantageously usable, and to the knowledge of the Applicant are new methods, are the second and third methods defined below:
- This second process is carried out in 4 stages: (1) condensation of the hydroxylamine (in the form of hydrochloride) on the ketone R 12 -CO-R 9 , then (2) addition of CH3SO2CI on the oxime obtained to lead to the mesylate 2 of the oxime, then (3) carrying out a Beckmann transposition of the mesylate 2 by action of the organomagnesium halide R 1 ⁇ MgX, then (4) nucleophilic addition on the imine 4 obtained from the halide d 'organomagnesium R 2 ⁇ MgX followed by acid hydrolysis, applying the following synthesis scheme:
- This third process is carried out in 2 stages: (1) condensation of the amine R 12 -NH2 and of the ketone R -CO-R 10 to lead to imine S, then (2) nucleophilic addition to imine 5 organomagnesium halide R ⁇ MgX followed by acid hydrolysis, applying the following synthetic scheme:
- the unsaturated compounds ( ⁇ ) from which the W functions are derived are compounds having ethylenic unsaturation, located at the end of the chain, capable of reacting in hydrosilylation in the presence of a catalyst based on a platinum group metal.
- compounds ( ⁇ ) there may be mentioned, by way of example, octene-1, undecene-1, dodecene-1, tridecene-1, methyl or ethyl undecenoate.
- the optionally mixed organopolysiloxanes of the invention with an oxygen ball can be obtained from, and this contributes to a second method of the second object of the invention: • corresponding organohydrogenopolysilanes (H), which are free of Z amino function (s) equipped with the oxygen patella and of W compatibilizing function (s),
- the optionally mixed polyorganosiloxanes of the invention with an oxygen ball joint can be obtained by using: - in the case of polymers having amine function (s) only: a dehydrogenocondensation reaction, or - in the case of mixed polymers with amine function (s) and compatibilizing function (s): simultaneous dehydrogenocondensation and addition (hydrosilylation) reactions or, preferably, successive dehydrogenocondensation and then addition (hydrosilylation) reactions, this from: corresponding organohydrogenopolysilanes (H) free of the Z functions equipped with the oxygen patella and W, of the organic compound (s) hydroxylated ( ⁇ ') from which derives (nt) ) the Z function (s) equipped with the oxygen patella, and the ethylenically unsaturated compound (s) at the end of the chain ( ⁇ ) from which the (or) are derived the) W.
- function (s) corresponding organohydrogenopolysilanes
- Said dehydrogenocondensation and hydrosilylation reactions can be carried out under the same operating conditions (in particular: nature and amount of catalyst; reaction temperatures; nature of optional solvents) as those described above in the context of addition reactions (hydrosilylations ) presiding over the preparation of polyorganosiloxanes without a ball joint.
- hydroxylated organic compounds ( ⁇ ') from which the Z functions equipped with the oxygen patella (or: from which the monovalent X groups are derived), are preferably those of formula:
- R 27 is a hydroxyl radical of formula: the symbols R 22 , B 3 , g, R 13 , R 19 , R ⁇ and R 21 have the general or preferential meanings given above with regard to the formula (V).
- compounds ( ⁇ ') there may be mentioned as examples the species of formulas:
- Hydroxylated amines are compounds which, to the knowledge of the Applicant, are new products. Such hydroxylated amines ( ⁇ ') can be easily synthesized using the following methods:
- R 22 , B 3 , R 18 , R 9 , R 20 , R 21 have the meanings indicated above.
- This fourth process is carried out in 3 stages: (1) chlorination by HCI of the alcohol of formula:
- R 1 8, R 19 , R 20 , R 21 have the meanings indicated above.
- organic polymers By way of example of such organic polymers, mention may be made of polyolefins, polyurethanes, polyamides, polyesters, polycarbonates, polysulfones, polyether sulfones, polyether ketones, acrylic polymers, their copolymers and their mixtures. .
- the compounds of the invention have a more particularly effective action with polyolefins and polyalkadienes such as polypropylene, high density polyethylene, linear low density polyethylene, low density polyethylene, polybutadiene, their copolymers and their mixtures.
- polyolefins and polyalkadienes such as polypropylene, high density polyethylene, linear low density polyethylene, low density polyethylene, polybutadiene, their copolymers and their mixtures.
- Yet another object of the present invention therefore consists in organic polymer compositions stabilized against the harmful effects of heat and UV by an effective amount of at least one optionally mixed polyorganosiloxane compound.
- these compositions contain from 0.04 to 20 milliequivalents depending on the sterically hindered amine (s) per 100 g of polymer to be stabilized.
- the stabilized polymeric compositions according to the invention contain from 0.20 to 4 milliequivalents depending on the sterically hindered amine function (s) per 100 g of polymer.
- the stabilized polymeric compositions contain from 0.01% to 5% by weight of polyorganosiloxane compound optionally mixed with respect to the polymer.
- compositions can also contain all the additives and stabilizers usually used with the polymers they contain.
- stabilizers and additives can be used: antioxidants such as alkylated monophenols, alkylated hydroquinones, hydroxylated diphenyl sulfides, alkylidene-bisphenols, benzylic compounds, acylamino-phenols, esters or amides (3,5-di-tert-butyl-4-hydroxy-phenyl) -3 propionic acid, acid esters
- polymer compositions thus stabilized can be applied in the most varied forms, for example in the form of molded articles, sheets, fibers, cellular materials (foam), profiles or coating products, or as film-forming agents.
- the temperature of the reaction mixture is allowed to rise to 0 ° C., then 89 cm 3 of a solution of solution are poured again gradually over a period of 60 minutes. allylmagnesium bromide in sulfuric ether (2 mole solution per liter).
- the reaction mixture is hydrolyzed by adding 700 cm 3 of water and 50 cm 3 of concentrated HCl. After decantation and separation, the organic phase is concentrated in a manner known per se in order to remove the toluene and the sulfuric ether. 14.6 g of the product of formula are thus recovered:
- the reaction medium After pouring the oil with hydrogenosilyl functions, the reaction medium is left to react at 110 ° C. for 45 hours. At the end of this time, the transformation rate of the hydrogenosilyl functions is 93% (in moles).
- Polypropylene ELTEX® P HV001P (grade 10) 100 q 100 q
- Stabilizer S1 according to Example 1, part 2) 0.2 g containing 245.9 meq in amino functions for - 100 q of stabilizer
- CHIMASORB 944 (see formula below), containing 341 meq in functions - 0.2 g piperidinyls per 100 q of stabilizer
- compositions are transformed, under identical operating conditions, to yield films 200 ⁇ m thick.
- the polypropylene-based film stabilized with S1 from the composition (Example 2) and the polypropylene-based film stabilized with S2 from the composition b (test b) are subjected to the same UV radiation exposure.
- the aging of the films is monitored by infrared spectrometry.
- the time of exposure T to UV rays which is necessary for the infrared spectrometry absorbance of the carbonyl band (at 1720 cm ⁇ 1 ) resulting from the oxidation resulting from the oxidation to be equal to the absorbance of infrared reference band (CH2 band at 2722 cm * 1 ); in other words, we measure the time T necessary to have in each case a degree of photooxidation such as:
- 70 g of dry toluene are introduced into a 1000 cm 3 tetracol reactor equipped with central mechanical stirring, a thermometer and a ball cooler.
- the contents of the reactor are brought to 90 ° C., the reactor overhead is inerted with nitrogen and 0.042 ml of the Karstedt catalyst solution described in Example 1 (part 2) is introduced.
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- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Silicon Polymers (AREA)
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9510402A BR9510402A (pt) | 1994-11-18 | 1995-11-15 | Poliorganosiloxano processo de preparação de poliorganosiloxano meios para realização de processo utilização de poliorganosiloxano e composição de polímero orgânico |
| AU41803/96A AU4180396A (en) | 1994-11-18 | 1995-11-15 | New silicon compounds with sterically hindered linear amine functions, useful for the heat and light stabilization of polymers |
| JP8516615A JPH10509757A (ja) | 1994-11-18 | 1995-11-15 | 重合体の光及び熱安定化に有用な立体障害線状アミン官能基を含有する新規なシリコーン化合物 |
| EP95940315A EP0792324A1 (fr) | 1994-11-18 | 1995-11-15 | Nouveaux composes silicones a fonctions amines lineaires steriquement encombrees, utiles pour la stabilisation lumiere et thermique des polymeres |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR94/14054 | 1994-11-18 | ||
| FR9414054A FR2727121B1 (fr) | 1994-11-18 | 1994-11-18 | Nouveaux composes silicones a fonctions amines lineaires steriquement encombrees, utiles pour la stabilisation lumiere et thermique des polymeres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1996016127A1 true WO1996016127A1 (fr) | 1996-05-30 |
Family
ID=9469086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1995/001502 Ceased WO1996016127A1 (fr) | 1994-11-18 | 1995-11-15 | Nouveaux composes silicones a fonctions amines lineaires steriquement encombrees, utiles pour la stabilisation lumiere et thermique des polymeres |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0792324A1 (fr) |
| JP (1) | JPH10509757A (fr) |
| AR (1) | AR000253A1 (fr) |
| AU (1) | AU4180396A (fr) |
| BR (1) | BR9510402A (fr) |
| CA (1) | CA2207109A1 (fr) |
| FR (1) | FR2727121B1 (fr) |
| IL (1) | IL116028A0 (fr) |
| TR (1) | TR199501444A2 (fr) |
| WO (1) | WO1996016127A1 (fr) |
| ZA (1) | ZA959789B (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792825A (en) * | 1995-06-16 | 1998-08-11 | Rhone-Poulenc Chimie | Silicone compounds containing sterically hindered cyclic amine functional groups which are useful for the light and thermal stabilization of polymers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0343717A2 (fr) * | 1988-05-27 | 1989-11-29 | GREAT LAKES CHEMICAL ITALIA S.r.l. | Stabilisants UV pour des polymères organiques |
| EP0358200A2 (fr) * | 1988-09-06 | 1990-03-14 | UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC. (a New York corporation) | Compositions de polymères stabilisées avec des polysiloxanes ayant des groupes hétérocycliques à encombrement stérique |
-
1994
- 1994-11-18 FR FR9414054A patent/FR2727121B1/fr not_active Expired - Fee Related
-
1995
- 1995-11-15 WO PCT/FR1995/001502 patent/WO1996016127A1/fr not_active Ceased
- 1995-11-15 CA CA002207109A patent/CA2207109A1/fr not_active Abandoned
- 1995-11-15 EP EP95940315A patent/EP0792324A1/fr not_active Withdrawn
- 1995-11-15 BR BR9510402A patent/BR9510402A/pt not_active Application Discontinuation
- 1995-11-15 JP JP8516615A patent/JPH10509757A/ja active Pending
- 1995-11-15 AU AU41803/96A patent/AU4180396A/en not_active Abandoned
- 1995-11-16 IL IL11602895A patent/IL116028A0/xx unknown
- 1995-11-17 AR AR33426895A patent/AR000253A1/es unknown
- 1995-11-17 ZA ZA959789A patent/ZA959789B/xx unknown
- 1995-11-17 TR TR95/01444A patent/TR199501444A2/xx unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0343717A2 (fr) * | 1988-05-27 | 1989-11-29 | GREAT LAKES CHEMICAL ITALIA S.r.l. | Stabilisants UV pour des polymères organiques |
| EP0358200A2 (fr) * | 1988-09-06 | 1990-03-14 | UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC. (a New York corporation) | Compositions de polymères stabilisées avec des polysiloxanes ayant des groupes hétérocycliques à encombrement stérique |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792825A (en) * | 1995-06-16 | 1998-08-11 | Rhone-Poulenc Chimie | Silicone compounds containing sterically hindered cyclic amine functional groups which are useful for the light and thermal stabilization of polymers |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2207109A1 (fr) | 1996-05-30 |
| AR000253A1 (es) | 1997-06-18 |
| FR2727121B1 (fr) | 1997-01-03 |
| EP0792324A1 (fr) | 1997-09-03 |
| TR199501444A2 (tr) | 1996-06-21 |
| AU4180396A (en) | 1996-06-17 |
| FR2727121A1 (fr) | 1996-05-24 |
| IL116028A0 (en) | 1996-01-31 |
| JPH10509757A (ja) | 1998-09-22 |
| BR9510402A (pt) | 1997-12-23 |
| ZA959789B (en) | 1996-05-29 |
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