IN2012DN03435A - - Google Patents

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Publication number
IN2012DN03435A
IN2012DN03435A IN3435DEN2012A IN2012DN03435A IN 2012DN03435 A IN2012DN03435 A IN 2012DN03435A IN 3435DEN2012 A IN3435DEN2012 A IN 3435DEN2012A IN 2012DN03435 A IN2012DN03435 A IN 2012DN03435A
Authority
IN
India
Prior art keywords
hypophosphite salt
current invention
relates
hypophosphite
composition
Prior art date
Application number
Inventor
Campo Floryan De
Annelyse Murillo
Junli Li
Tingting Zhang
Original Assignee
Rhodia China Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rhodia China Co Ltd filed Critical Rhodia China Co Ltd
Publication of IN2012DN03435A publication Critical patent/IN2012DN03435A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/165—Hypophosphorous acid; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/02—Inorganic materials
    • C09K21/04—Inorganic materials containing phosphorus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fireproofing Substances (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The current invention relates to a process for stabilizing hypophosphite salt, comprising the steps of a) washing the hypophosphite salt at least one time under a controlled value of pH comprised between 4 and 11, preferably between 5 and 8, said hypophosphite salt in an aqueous solution and/or in a solid state, and b) drying said hypophosphite salt under reduced pressure to remove the volatiles, to prevent the formation of a dangerous quantity of phosphine in its application as FR in polymers and the current invention also relates to a flame retardant polymer composition comprising a polymer and 0,1 to 30 weight percent based on the total weight of the composition of the hypophosphite salt stabilized by the above process.
IN3435DEN2012 2009-10-23 2009-10-23 IN2012DN03435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/074584 WO2011047511A1 (en) 2009-10-23 2009-10-23 Process for stabilizing hypophosphite

Publications (1)

Publication Number Publication Date
IN2012DN03435A true IN2012DN03435A (en) 2015-10-23

Family

ID=43899779

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3435DEN2012 IN2012DN03435A (en) 2009-10-23 2009-10-23

Country Status (11)

Country Link
US (1) US8940820B2 (en)
EP (1) EP2490984A4 (en)
JP (1) JP2013508249A (en)
KR (1) KR20120095932A (en)
CN (1) CN102791622B (en)
AU (1) AU2009354427B2 (en)
BR (1) BR112012009360A2 (en)
CA (1) CA2778375A1 (en)
IN (1) IN2012DN03435A (en)
RU (1) RU2012121173A (en)
WO (1) WO2011047511A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012113145A1 (en) * 2011-02-24 2012-08-30 Rhodia (China) Co., Ltd. Flame retardant polymer compositions comprising stabilized hypophosphite salts
WO2012113146A1 (en) * 2011-02-24 2012-08-30 Rhodia (China) Co., Ltd. Flame retardant polymer compositions comprising stabilized hypophosphite salts
BR112013021583A2 (en) * 2011-02-24 2018-06-12 Rhodia China Co Ltd use of a calcium hypophosphite, composition and method to increase the mechanical properties of a polyamide composition
WO2013138992A1 (en) * 2012-03-20 2013-09-26 Rhodia Operations Flame retardant polymer compositions
CN104936891B (en) 2012-04-06 2017-03-15 罗地亚经营管理公司 Method for producing hypophosphites
CN106006589A (en) * 2015-08-24 2016-10-12 湖北航天化学技术研究所 Method for joint production of hypophosphite of calcium, magnesium and aluminum
CN113648958B (en) * 2021-08-24 2022-08-30 天门安安化工科技有限公司 Continuous production system and method for soluble hypophosphite by taking ammonia gas or soluble alkali as raw material

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL145897B (en) * 1948-04-12 Union Carbide Corp PROCEDURE FOR PREPARING GRAINED DETERGENTS.
DE1570627C3 (en) * 1965-11-24 1973-09-27 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Process for making linear fiber-forming polyesters
US4379132A (en) * 1982-08-05 1983-04-05 Fmc Corporation Process for sodium hypophosphite
JPS5992908A (en) * 1982-11-18 1984-05-29 Nippon Chem Ind Co Ltd:The Purification of sodium hypophosphite
JPH01313310A (en) * 1988-06-13 1989-12-18 Nippon Chem Ind Co Ltd Production of sodium hypophosphite
JPH07110764B2 (en) 1990-05-30 1995-11-29 燐化学工業株式会社 Method for producing alkali metal hypophosphite
JPH0483709A (en) * 1990-07-24 1992-03-17 Asahi Chem Ind Co Ltd Method for purifying sodium hypophosphite
GB9119992D0 (en) 1991-09-19 1991-11-06 Albright & Wilson Improvements in or relating to red phosphorus
JP4260284B2 (en) * 1999-05-19 2009-04-30 ポリプラスチックス株式会社 Flame retardant and flame retardant resin composition
JP4700852B2 (en) * 2000-07-26 2011-06-15 ポリプラスチックス株式会社 Flame retardant resin composition
JP2003040609A (en) 2001-05-24 2003-02-13 Nippon Chem Ind Co Ltd Method for producing red phosphorus particle and method for stabilized red phosphorus
DE102004023085A1 (en) * 2004-05-11 2005-12-15 Clariant Gmbh Dialkylphosphinic acid salts, a process for their preparation and their use
EP1907473B1 (en) * 2005-07-22 2010-02-10 Italmatch Chemicals S.P.A. Flame retardant polymeric compositions
FR2894054B1 (en) * 2005-11-29 2008-01-18 Eurocopter France THERMOSTAT AND EMBEDDING OVERHEATING DETECTION SYSTEM.
US20070173572A1 (en) 2006-01-20 2007-07-26 General Electric Company Flame retardant resin composition
PL2178960T3 (en) 2007-07-13 2011-10-31 Italmatch Chemicals Spa Halogen-free flame retardant additive
CN101172591B (en) 2007-10-08 2010-09-01 江苏康祥集团公司 Method for producing sodium hypophosphite
CN101332982B (en) 2008-07-30 2010-06-09 江苏康祥集团公司 Method for producing calcium hypophosphite
CN101332981B (en) 2008-07-30 2011-04-20 江苏康祥集团公司 Process for purifying sodium hypophosphite

Also Published As

Publication number Publication date
CA2778375A1 (en) 2011-04-28
US20120208942A1 (en) 2012-08-16
KR20120095932A (en) 2012-08-29
AU2009354427B2 (en) 2014-11-13
CN102791622A (en) 2012-11-21
CN102791622B (en) 2017-02-08
US8940820B2 (en) 2015-01-27
JP2013508249A (en) 2013-03-07
EP2490984A1 (en) 2012-08-29
EP2490984A4 (en) 2013-05-08
RU2012121173A (en) 2013-11-27
BR112012009360A2 (en) 2016-11-22
AU2009354427A1 (en) 2012-05-31
WO2011047511A1 (en) 2011-04-28

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