FR2466435A1 - Nouveaux polychlorophosphazenes et leur procede de preparation - Google Patents
Nouveaux polychlorophosphazenes et leur procede de preparation Download PDFInfo
- Publication number
- FR2466435A1 FR2466435A1 FR7924037A FR7924037A FR2466435A1 FR 2466435 A1 FR2466435 A1 FR 2466435A1 FR 7924037 A FR7924037 A FR 7924037A FR 7924037 A FR7924037 A FR 7924037A FR 2466435 A1 FR2466435 A1 FR 2466435A1
- Authority
- FR
- France
- Prior art keywords
- reaction
- controlled
- polychlorophosphazenes
- polycondensation
- atmospheric pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 43
- 230000008569 process Effects 0.000 title claims description 28
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000013270 controlled release Methods 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 125000004122 cyclic group Chemical group 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 11
- -1 dichlorophosphoryl Chemical group 0.000 claims description 7
- 101100386054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) CYS3 gene Proteins 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 101150035983 str1 gene Proteins 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 abstract description 10
- 229910019213 POCl3 Inorganic materials 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000003337 fertilizer Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract 1
- 239000003063 flame retardant Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 description 23
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 7
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 6
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 230000009102 absorption Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000012043 crude product Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 150000001923 cyclic compounds Chemical class 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 125000004793 2,2,2-trifluoroethoxy group Chemical group FC(CO*)(F)F 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 150000008040 ionic compounds Chemical class 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N methyl pentane Natural products CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004809 thin layer chromatography Methods 0.000 description 2
- 239000013638 trimer Substances 0.000 description 2
- LOZAIRWAADCOHQ-UHFFFAOYSA-N triphosphazene Chemical compound PNP=NP LOZAIRWAADCOHQ-UHFFFAOYSA-N 0.000 description 2
- NUMXHEUHHRTBQT-AATRIKPKSA-N 2,4-dimethoxy-1-[(e)-2-nitroethenyl]benzene Chemical compound COC1=CC=C(\C=C\[N+]([O-])=O)C(OC)=C1 NUMXHEUHHRTBQT-AATRIKPKSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- MAXUIBVITJKGMP-UHFFFAOYSA-N diphosphazene Chemical compound PN=P MAXUIBVITJKGMP-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- UBIJTWDKTYCPMQ-UHFFFAOYSA-N hexachlorophosphazene Chemical class ClP1(Cl)=NP(Cl)(Cl)=NP(Cl)(Cl)=N1 UBIJTWDKTYCPMQ-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- BVIDQAVCCRUFGU-UHFFFAOYSA-M methyl sulfate;trimethyl(1-phenothiazin-10-ylpropan-2-yl)azanium Chemical compound COS([O-])(=O)=O.C1=CC=C2N(CC(C)[N+](C)(C)C)C3=CC=CC=C3SC2=C1 BVIDQAVCCRUFGU-UHFFFAOYSA-M 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical compound CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000002103 osmometry Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002627 poly(phosphazenes) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- NHTMYQCWNYVABS-UHFFFAOYSA-N trichloro(dichlorophosphanylimino)-$l^{5}-phosphane Chemical compound ClP(Cl)N=P(Cl)(Cl)Cl NHTMYQCWNYVABS-UHFFFAOYSA-N 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
Classifications
-
- 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
- C08G79/00—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule
- C08G79/02—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule a linkage containing phosphorus
- C08G79/025—Polyphosphazenes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/097—Compounds containing nitrogen and non-metals and optionally metals containing phosphorus atoms
- C01B21/098—Phosphonitrilic dihalides; Polymers thereof
- C01B21/0986—Phosphonitrilic dichlorides; Polymers thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7924037A FR2466435A1 (fr) | 1979-09-27 | 1979-09-27 | Nouveaux polychlorophosphazenes et leur procede de preparation |
| EP80401248A EP0026685B1 (fr) | 1979-09-27 | 1980-09-02 | Polychlorophosphazènes linéaires, procédé pour leur préparation et leur utilisation |
| DE8080401248T DE3071484D1 (en) | 1979-09-27 | 1980-09-02 | Linear polychlorophosphazenes, process for their preparation and their use |
| US06/187,184 US4377558A (en) | 1979-09-27 | 1980-09-15 | Novel polychlorophosphazenes and process for their preparation |
| SU802985051A SU1131471A3 (ru) | 1979-09-27 | 1980-09-23 | Способ получени полихлорфосфазенов |
| US06/477,397 US4544536A (en) | 1979-09-27 | 1983-03-21 | Polychlorophosphazenes and process for their preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7924037A FR2466435A1 (fr) | 1979-09-27 | 1979-09-27 | Nouveaux polychlorophosphazenes et leur procede de preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2466435A1 true FR2466435A1 (fr) | 1981-04-10 |
| FR2466435B1 FR2466435B1 (enExample) | 1983-01-07 |
Family
ID=9230065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7924037A Granted FR2466435A1 (fr) | 1979-09-27 | 1979-09-27 | Nouveaux polychlorophosphazenes et leur procede de preparation |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US4377558A (enExample) |
| EP (1) | EP0026685B1 (enExample) |
| DE (1) | DE3071484D1 (enExample) |
| FR (1) | FR2466435A1 (enExample) |
| SU (1) | SU1131471A3 (enExample) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2466435A1 (fr) * | 1979-09-27 | 1981-04-10 | Inst Mondial Phosphate | Nouveaux polychlorophosphazenes et leur procede de preparation |
| FR2548652B1 (fr) * | 1983-07-06 | 1985-11-22 | Elf Aquitaine | Polychlorophosphazenes lineaires possedant un groupement terminal dichlorothiophosphoryle, procede de preparation de ces composes, et leur utilisation |
| FR2571710B1 (fr) * | 1984-10-17 | 1986-12-26 | Elf Aquitaine | Procede de preparation de polychlorophosphazenes lineaires possedant un groupement terminal pxcl2, x designant o ou s, par polycondensation en solution des monomeres p2nxcl5 |
| US4524052A (en) * | 1984-12-24 | 1985-06-18 | The Firestone Tire & Rubber Company | Borate chloride polymerization catalysts |
| FR2606396B1 (fr) * | 1986-11-12 | 1989-02-10 | Atochem | Procede d'obtention de n(dichlorophosphoryl) trichlorophosphazene a partir de pentachlorure de phosphore et de chlorure d'ammonium |
| FR2612172B1 (fr) * | 1987-03-10 | 1989-06-16 | Atochem | Procede de preparation de polychlorophosphazene |
| FR2612169B1 (fr) * | 1987-03-10 | 1989-06-16 | Atochem | Procede de preparation de n(dichlorophosphoryl)trichlorophosphazene |
| FR2612170B1 (fr) * | 1987-03-10 | 1989-06-16 | Atochem | Procede de preparation de polychlorophosphazene en presence de bis(dichlorophosphoryl)imide |
| ATE79835T1 (de) * | 1987-07-02 | 1992-09-15 | Atochem Elf Sa | Verfahren zur regulierung des molekulargewichts von polychlorphosphazenen und davon abgeleiteten polyorganophosphazenen und die in diesem verfahren angewandten regulierungsmittel. |
| US4806322A (en) * | 1987-11-16 | 1989-02-21 | The Firestone Tire & Rubber Company | Process for the production of linear polyphosphazenes |
| FR2629442B1 (fr) * | 1988-03-29 | 1990-11-23 | Atochem | Procede de preparation de compositions de polydichlorophosphazenes a taux controle d'oligomeres cycliques et les compositions resultant de la mise en oeuvre de ce procede |
| FR2647100A1 (fr) * | 1989-05-19 | 1990-11-23 | Atochem | Procede de polycondensation en masse du n-dichlorophosphoryl- ou n-dichlorothiophosphoryl-p-trichlorophosphazene |
| FR2653423A1 (fr) * | 1989-10-20 | 1991-04-26 | Atochem | Procede de regulation des masses moleculaires de polydichlorophosphazenes. |
| FR2682391A1 (fr) * | 1991-10-11 | 1993-04-16 | Atochem | Procede de preparation de polyalkyl ou arylchlorophosphazenes. |
| DE4317909A1 (de) * | 1993-05-28 | 1994-12-01 | Wacker Chemie Gmbh | Verfahren zum Kondensieren und/oder Äquilibrieren von Organosiliciumverbindungen |
| DE4317978A1 (de) * | 1993-05-28 | 1994-12-01 | Wacker Chemie Gmbh | Organosiliciumreste aufweisende Phosphazene, Verfahren zu deren Herstellung und deren Verwendung |
| FR2709256B1 (fr) * | 1993-07-15 | 1997-05-30 | Gen Electric | Procédé de préparation d'une composition catalytique de phosphazène utile pour la polycondensation et la redistribution de polymères d'organosiloxane. |
| US5403909A (en) * | 1993-07-15 | 1995-04-04 | General Electric Company | Catalysts for polycondensation and redistribution of organosiloxane polymers |
| US6309619B1 (en) * | 1998-07-14 | 2001-10-30 | Bechtel Bwxt Idaho, Llc | Solid state synthesis of poly(dichlorophosphazene) |
| RU2645682C1 (ru) * | 2017-05-25 | 2018-02-27 | Михаил Владимирович Горлов | Способ получения олигогалогенфосфазенов и полигалогенфосфазенов с регулируемой молекулярной массой взаимодействием галогенфосфоранов с гексаалкилдисилазанами |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA572951A (en) * | 1959-03-24 | Barth-Wehrenalp Gerhard | Phosphorus compounds and process for making | |
| US2925320A (en) * | 1956-02-16 | 1960-02-16 | Pennsalt Chemicals Corp | Compounds of the class p2x5no and process for producing same |
| US2980506A (en) * | 1956-09-27 | 1961-04-18 | Henkel & Compagnie G M B H | Nitrogen-phosphoric acid compounds containing active chlorine |
| GB1321102A (en) * | 1970-04-09 | 1973-06-20 | Castrol Ltd | Method for preparing trihalophosphazine phosphoryl dihalides |
| FR2466435A1 (fr) * | 1979-09-27 | 1981-04-10 | Inst Mondial Phosphate | Nouveaux polychlorophosphazenes et leur procede de preparation |
-
1979
- 1979-09-27 FR FR7924037A patent/FR2466435A1/fr active Granted
-
1980
- 1980-09-02 DE DE8080401248T patent/DE3071484D1/de not_active Expired
- 1980-09-02 EP EP80401248A patent/EP0026685B1/fr not_active Expired
- 1980-09-15 US US06/187,184 patent/US4377558A/en not_active Expired - Lifetime
- 1980-09-23 SU SU802985051A patent/SU1131471A3/ru active
-
1983
- 1983-03-21 US US06/477,397 patent/US4544536A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4544536A (en) | 1985-10-01 |
| DE3071484D1 (en) | 1986-04-17 |
| US4377558A (en) | 1983-03-22 |
| EP0026685B1 (fr) | 1986-03-12 |
| SU1131471A3 (ru) | 1984-12-23 |
| EP0026685A1 (fr) | 1981-04-08 |
| FR2466435B1 (enExample) | 1983-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2466435A1 (fr) | Nouveaux polychlorophosphazenes et leur procede de preparation | |
| ATE98278T1 (de) | Verfahren zur herstellung von bor und stickstoff enthaltenden polymeren, die bornitridvorlaeufer sind und die erhaltenen produkte. | |
| FR2719848A1 (fr) | Procédé de fabrication de siloxanes réticulés par dismutation. | |
| FR2707654A1 (fr) | Procédé de préparation de fluides de polydiorganosiloxanes à terminaison triorganosiloxy à faible teneur en silanol. | |
| EP0132188B1 (fr) | Polychlorophosphazènes linéaires possédant un groupement terminal dichlorothiophosphoryle, procédé de préparation de ces composés et leur utilisation | |
| US4772516A (en) | Stable methylpolydisilylazane polymers | |
| FR2571710A1 (fr) | Procede de preparation de polychlorophosphazenes lineaires possedant un groupement terminal pxcl2, x designant o ou s, par polycondensation en solution des monomeres p2nxcl5 | |
| US5136087A (en) | Preparation of polymethylene polyphenyl polyisocyanate | |
| JPS5891020A (ja) | 環状クロルホスフアゼンの精製法 | |
| FR2653423A1 (fr) | Procede de regulation des masses moleculaires de polydichlorophosphazenes. | |
| ATE16393T1 (de) | Verfahren zur herstellung von chlor-phenylphosphanen. | |
| CA1330616C (fr) | Procede d'obtention de n(dichlorophosphoryl) trichlorophosphazene a partir de pentachlorure de phosphore et de chlorure d'ammonium | |
| Chojnowski et al. | Synthesis and some properties of polyoxyhexakis (dimethylsilylene) and its copolymers with dimethylsiloxane | |
| EP0284478B1 (fr) | Procédé de préparation de N(dichlorophosphoryl) trichlorophosphazène | |
| EP0283375A1 (fr) | Procédé de préparation de polychlorophosphazène | |
| SU696034A1 (ru) | Способ получени хлорсилоксановых олигомеров | |
| JPH03193613A (ja) | N―ジクロロホスホリルトリクロロホスファゼンの不純物の有害な作用を相殺する方法及びその重縮合生成物 | |
| EP0532396A1 (fr) | Procédé de préparation de polydichlorophosphazènes à partir d'une composition précurseur à base d'hexachlorocyclotriphosphazène | |
| SU761524A1 (ru) | Способ получения олигомерных хлорфос.фазенов 1 | |
| SU422751A1 (ru) | Способ получения ненасыщенных ариленовых олигомеров | |
| RU2058318C1 (ru) | Способ получения диорганилциклосилоксанов | |
| US5093438A (en) | Polycarbophosphazenes | |
| FR2629442A1 (fr) | Procede de preparation de compositions de polydichlorophosphazenes a taux controle d'oligomeres cycliques et les compositions resultant de la mise en oeuvre de ce procede |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse | ||
| TP | Transmission of property |