CN101033581A - Fire retardant for fabric and synthesis method thereof - Google Patents

Fire retardant for fabric and synthesis method thereof Download PDF

Info

Publication number
CN101033581A
CN101033581A CN 200710038826 CN200710038826A CN101033581A CN 101033581 A CN101033581 A CN 101033581A CN 200710038826 CN200710038826 CN 200710038826 CN 200710038826 A CN200710038826 A CN 200710038826A CN 101033581 A CN101033581 A CN 101033581A
Authority
CN
China
Prior art keywords
fire retardant
fabric
alcohol
saturated fatty
phosphorus pentoxide
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
Application number
CN 200710038826
Other languages
Chinese (zh)
Other versions
CN100494555C (en
Inventor
周向东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou University
Original Assignee
Suzhou University
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 Suzhou University filed Critical Suzhou University
Priority to CNB2007100388267A priority Critical patent/CN100494555C/en
Publication of CN101033581A publication Critical patent/CN101033581A/en
Application granted granted Critical
Publication of CN100494555C publication Critical patent/CN100494555C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Fireproofing Substances (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

This invention discloses a combination method for a flammable inhibitor of fabrics characterizing that a halogenated saturated fatty alcohol, P2O5 and dien react in the substantial ratio of 2 : 1 : 2 to prepare a flammable inhibitor, which is a multi-amine salt low polymer of haloalkylphosphate and includes three inhibitor elements of phosphor, nitrogen and halogen at the same time, its solution is in light yellow or orange and transparent, terylene, cotton or vinylon are good at inhibiting after they are cleaned up by said flammable inhibitor.

Description

A kind of fire retardant and synthetic method thereof that is used for fabric
Technical field
The present invention relates to a kind of fire retardant that is used for textile finishing and synthetic, be specifically related to a kind of fire retardant that is used for textile finishings such as terylene, cotton or polyvinyl.
Background technology
Fire retardant is that a class can stop polymeric material to ignite or suppresses the additive of flame propagation.The existing fire retardant that is used for dacron mainly contains phosphorus system, halogen system, inorganic system and the mixed system of several series wherein.Wherein, representative product is the Antiblaze1 9 that U.S. Mobil chemical company succeeded in developing in 1971 in the phosphorus flame retardant, and it is the mixture of mono phosphoric acid ester cyclic ester and phosphoric acid bicyclic diester, phosphorus content 21%; The FRC-1 that domestic like product has Changzhou Chemical Engineering Inst. to succeed in developing, this based flame retardant does not have flame retardant effect to fabrics such as cotton or polyvinyls, and it is more serious to carry out fabric moisture regain after the flame-proof treatment phenomenon that is clamminess.Halogenated flame retardant mainly is brominated and chloride compound, and commonly used has: the hexabromo-Cyclododecane (HBCD) of Beijing chemical fibre Research Institute, brominated amount 〉=70%; The deca-BDE (FR-10) of Tianjin synthetic material Research Institute; The trichloroethyl phosphate (TCEP) of Dongdu insecticide factory exploitation; The P5501 dacron fire retardant of Shanghai inorganic chemical industry Research Institute is the mixed system of bromine, antimony, and this based flame retardant is generally water insoluble, is not easy to the padding finishing of fabric.The mineral-type fire retardant mainly is used as the synergist of halogenated flame retardant based on antimony trioxide.Mainly contain N-dihydroxymethyl phosphono acrylamide (NMDPPA and be used for FLAME RETARDANT FOR COTTON CLOTH, be Pyrovatex CP) and Tetrakis hydroxymethyl phosphonium chloride (THPC or THPS), wherein Pyrovatex CP is the exploitation of Ciba Co., Ltd, and domestic like product has the FRC-2 of Changzhou Chemical Engineering Inst.; THPC is by the inferior (Albright﹠amp of Britain's Albright-Weir; Wilson) company develops nineteen fifty-five, and domestic also have like product to go on the market, and this based flame retardant contains free formaldehyde, and the fabric feeling after the arrangement hardens.
Thereby, a kind of fire retardant of new function admirable is provided, carry out the problem that the flame-proof treatment meeting causes fabric property to descend at present to solve, be the emphasis of current research; Simultaneously, both be applicable to that terylene was fire-retardant, be applicable to the fire retardant that cotton or polyvinyl are fire-retardant again, good effect will have been arranged for applying of product if can provide a kind of.
Summary of the invention
The object of the invention provides a kind of fire retardant that can be applicable to textile finishings such as terylene, cotton or polyvinyl simultaneously, and should not influence the feel of fabric after using.
For achieving the above object, the technical solution used in the present invention is: a kind of synthetic method that is used for the fire retardant of fabric, stir down phosphorus pentoxide is dropped in the halo saturated fatty alcohol, be cooled with circulating water, fully stir, after in 2~3 hours, having thrown phosphorus pentoxide, be warming up to 60~70 ℃ again, insulation reaction is 2~3 hours under this temperature, add diethylenetriamines then, and constantly stir, 90~110 ℃ of reactions 2~3 hours, be cooled to room temperature, add water according to needed solid content, fully stir the back and filter, filtrate is fire retardant, wherein, the ratio of the amount of substance of raw material is: halo saturated fatty alcohol: phosphorus pentoxide: diethylenetriamines=2: 1: 2.
In the technique scheme, described halo saturated fatty alcohol is represented X-C by following general formula nH 2nOH, in the formula, n≤8, X=Cl or Br.
Further technical scheme is that described halo saturated fatty alcohol is selected from ethylene chlorhydrin, chloromethane alcohol, 2-chloropropyl alcohol, 3-chloropropyl alcohol, 2-methaform, 3-methaform, 4-methaform, 8-chlorine octanol, ethylene bromohyrin, 2-bromopropyl alcohol, 3-bromopropyl alcohol, 2-bromobutanol, 3-bromobutanol, 4-bromobutanol or 8-bromine octanol.
Wherein, optimized technical scheme is that described halo saturated fatty alcohol is an ethylene chlorhydrin.
The fire retardant that the simultaneously claimed employing said method of the present invention obtains; And this fire retardant is to the application in the flame-proof treatment of terylene, cotton or polyvinyl fabric.
The concrete implementing process of technique scheme can be: the halo saturated fatty alcohol is added in the reactor after than weighing by required amount of substance, start agitator, at normal temperatures phosphorus pentoxide is put in the reactor, and ON cycle water cooling, after in 2~3 hours, having thrown phosphorus pentoxide, be warming up to 60~70 ℃ again, insulation reaction is 2~3 hours under this temperature, then by required amount of substance than in reactor, adding diethylenetriamines, and constantly stir, 90~110 ℃ of reactions 2~3 hours, be cooled to room temperature, add a certain amount of water according to needed solid content, fully stir after 0.5 hour and filter, filtrate is product.This product is faint yellow or orange-yellow transparent liquid, and pH value is 6~7.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1. the fire retardant of the present invention's acquisition is a kind of polyamines salt oligomer of halogenated alkyl phosphate, contain phosphorus, nitrogen, three kinds of ignition-proof elements of certain halogen simultaneously, it is faint yellow or orange-yellow and transparent that its aqueous solution is, fabrics such as terylene, cotton or polyvinyl had the good flame effect, there is not drip phenomenon during calcination, press GB/T 17595-1998 standard testing, fire resistance can reach B 1Level.
2. the fire retardant of the present invention's acquisition is to the not influence of feel of fabric.
3. technology of the present invention is simple, and course of reaction is convenient to control, is fit to suitability for industrialized production.
The specific embodiment
Below in conjunction with embodiment the present invention is further described:
Embodiment 1, with raw material ethylene chlorhydrin, phosphorus pentoxide and diethylenetriamines by amount of substance than being that weighing in 2: 1: 2 is good, again ethylene chlorhydrin is joined in the reactor, start agitator, at normal temperatures phosphorus pentoxide is put in the reactor, and the ON cycle water cooling, in 2 hours, thrown phosphorus pentoxide after, be warming up to 60 ℃ again, insulation reaction is 3 hours under this temperature.In reactor, add load weighted diethylenetriamines then, be warming up to 110 ℃, stir reaction down 2 hours.Add a certain amount of water again, fully stir after 0.5 hour and filter, filtrate is product.This product is faint yellow transparent liquid, and testing its solid content is 58.0%, and pH value is 6.5.Get the aqueous solution that this fire retardant is made into three groups of 200g/L, utilize it to put dacron, COTTON FABRIC, polyvinyl fabric respectively in order, it is as shown in table 1 to test its fire resistance by GB/T5455-1997 eqv ISO6941:1992 (mensuration of textile combustion performance vertical direction sample propagation of flame performance) method:
Fire resistance after table 1 terylene/cotton/polyvinyl textile finishing
Char length (cm) After flame time (s) Duration of fire resistance (s)
Dacron COTTON FABRIC polyvinyl fabric 11.2 13.8 12.5 0 1.2 0 0 0 0
Embodiment 2, with raw material 2-chloropropyl alcohol, phosphorus pentoxide and diethylenetriamines by amount of substance than being that weighing in 2: 1: 2 is good, again the 2-chloropropyl alcohol is joined in the reactor, start agitator, at normal temperatures phosphorus pentoxide is slowly put in the reactor, and the ON cycle water cooling, in 3 hours, thrown phosphorus pentoxide after, be warming up to 70 ℃ again, insulation reaction is 2 hours under this temperature.In reactor, add load weighted diethylenetriamines then, be warming up to 100 ℃, stir reaction down 2.5 hours.Add a certain amount of water, fully stir after 0.5 hour and filter, filtrate is product.This product is faint yellow transparent liquid, and testing its solid content is 54.0%, and pH value is 6.0.Get the aqueous solution that this fire retardant is made into three groups of 200g/L, utilize it to put dacron, COTTON FABRIC, polyvinyl fabric respectively in order, it is as shown in table 2 to test its fire resistance by GB/T5455-1997 eqv ISO6941:1992 (mensuration of textile combustion performance vertical direction sample propagation of flame performance) method:
Fire resistance after table 2 terylene/cotton/polyvinyl textile finishing
Char length (cm) After flame time (s) Duration of fire resistance (s)
Dacron COTTON FABRIC polyvinyl fabric 11.5 14.2 12.7 0 1.3 0 0 0 0
Embodiment 3, with raw material 8-chlorine octanol, phosphorus pentoxide and diethylenetriamines by amount of substance than being that weighing in 2: 1: 2 is good, again 8-chlorine octanol is joined in the reactor, start agitator, at normal temperatures phosphorus pentoxide is slowly put in the reactor, and the ON cycle water cooling, in 2.5 hours, thrown phosphorus pentoxide after, be warming up to 65 ℃ again, insulation reaction is 2.5 hours under this temperature.In reactor, add load weighted diethylenetriamines then, be warming up to 90 ℃, stir reaction down 3 hours.Add a certain amount of water again, fully stir after 0.5 hour and filter, filtrate is product.This product is faint yellow transparent liquid, and testing its solid content is 56.0%, and pH value is 6.6.Get the aqueous solution that this fire retardant is made into three groups of 200g/L, utilize it to put dacron, COTTON FABRIC, polyvinyl fabric respectively in order, it is as shown in table 3 to test its fire resistance by GB/T5455-1997 eqv ISO6941:1992 (mensuration of textile combustion performance vertical direction sample propagation of flame performance) method:
Fire resistance after table 3 terylene/cotton/polyvinyl textile finishing
Char length (cm) After flame time (s) Duration of fire resistance (s)
Dacron COTTON FABRIC polyvinyl fabric 11.8 14.7 13.6 0 1.9 0 0 0 0
Embodiment 4, with raw material ethylene bromohyrin, phosphorus pentoxide and diethylenetriamines by amount of substance than being that weighing in 2: 1: 2 is good, again ethylene bromohyrin is joined in the reactor, start agitator, at normal temperatures phosphorus pentoxide is slowly put in the reactor, and the ON cycle water cooling, in 3 hours, thrown phosphorus pentoxide after, be warming up to 60 ℃ again, insulation reaction is 3 hours under this temperature.In reactor, add load weighted diethylenetriamines then, be warming up to 110 ℃, stir reaction down 2 hours.Add a certain amount of water, fully stir after 0.5 hour and filter, filtrate is product.This product is orange-yellow transparent liquid, and testing its solid content is 56.5%, and pH value is 6.2.Get the aqueous solution that this fire retardant is made into three groups of 200g/L, utilize it to put dacron, COTTON FABRIC, polyvinyl fabric respectively in order, it is as shown in table 4 to test its fire resistance by GB/T5455-1997 eqv ISO6941:1992 (mensuration of textile combustion performance vertical direction sample propagation of flame performance) method:
Fire resistance after table 4 terylene/cotton/polyvinyl textile finishing
Char length (cm) After flame time (s) Duration of fire resistance (s)
Dacron COTTON FABRIC polyvinyl fabric 11.0 13.3 12.2 0 0.9 0 0 0 0
Embodiment 5, with raw material 2-bromopropyl alcohol, phosphorus pentoxide and diethylenetriamines by amount of substance than being that weighing in 2: 1: 2 is good, again the 2-bromopropyl alcohol is joined in the reactor, start agitator, at normal temperatures phosphorus pentoxide is slowly put in the reactor, and the ON cycle water cooling, in 2.5 hours, thrown phosphorus pentoxide after, be warming up to 70 ℃ again, insulation reaction is 2 hours under this temperature.In reactor, add load weighted diethylenetriamines then, be warming up to 100 ℃, stir reaction down 2.5 hours.Add a certain amount of water, fully stir after 0.5 hour and filter, filtrate is product.This product is orange-yellow transparent liquid, and testing its solid content is 60.0%, and pH value is 6.4.Get the aqueous solution that this fire retardant is made into three groups of 200g/L, utilize it to put dacron, COTTON FABRIC, polyvinyl fabric respectively in order, it is as shown in table 5 to test its fire resistance by GB/T5455-1997 eqv ISO6941:1992 (mensuration of textile combustion performance vertical direction sample propagation of flame performance) method:
Fire resistance after table 5 terylene/cotton/polyvinyl textile finishing
Char length (cm) After flame time (s) Duration of fire resistance (s)
Dacron COTTON FABRIC polyvinyl fabric 10.6 13.1 11.8 0 0.8 0 0 0 0
Embodiment 6, with raw material 8-bromine octanol, phosphorus pentoxide and diethylenetriamines by amount of substance than being that weighing in 2: 1: 2 is good, again 8-bromine octanol is joined in the reactor, start agitator, at normal temperatures phosphorus pentoxide is slowly put in the reactor, and the ON cycle water cooling, in 2 hours, thrown phosphorus pentoxide after, be warming up to 65 ℃ again, insulation reaction is 2.5 hours under this temperature.In reactor, add load weighted diethylenetriamines then, be warming up to 90 ℃, stir reaction down 3 hours.Add a certain amount of water, fully stir after 0.5 hour and filter, filtrate is product.This product is orange-yellow transparent liquid, and testing its solid content is 58.5%, and pH value is 6.7.Get the aqueous solution that this fire retardant is made into three groups of 200g/L, utilize it to put dacron, COTTON FABRIC, polyvinyl fabric respectively in order, it is as shown in table 6 to test its fire resistance by GB/T5455-1997 eqv ISO6941:1992 (mensuration of textile combustion performance vertical direction sample propagation of flame performance) method:
Fire resistance after table 6 terylene/cotton/polyvinyl textile finishing
Char length (cm) After flame time (s) Duration of fire resistance (s)
Dacron COTTON FABRIC polyvinyl fabric 10.2 13.0 11.6 0 1.4 0 0 0 0

Claims (6)

1. synthetic method that is used for the fire retardant of fabric, it is characterized in that: stir down phosphorus pentoxide is dropped in the halo saturated fatty alcohol, be cooled with circulating water, fully stir, after in 2~3 hours, having thrown phosphorus pentoxide, be warming up to 60~70 ℃ again, insulation reaction is 2~3 hours under this temperature, adds diethylenetriamines then, and constantly stir, 90~110 ℃ of reactions 2~3 hours, be cooled to room temperature, add water according to needed solid content, fully stirring the back filters, filtrate is fire retardant, and wherein, the ratio of the amount of substance of raw material is: halo saturated fatty alcohol: phosphorus pentoxide: diethylenetriamines=2: 1: 2.
2. the synthetic method that is used for the fire retardant of fabric according to claim 1 is characterized in that: described halo saturated fatty alcohol is represented X-C by following general formula nH 2nOH, in the formula, n≤8, X=Cl or Br.
3. the synthetic method that is used for the fire retardant of fabric according to claim 2 is characterized in that: described halo saturated fatty alcohol is selected from ethylene chlorhydrin, chloromethane alcohol, 2-chloropropyl alcohol, 3-chloropropyl alcohol, 2-methaform, 3-methaform, 4-methaform, 8-chlorine octanol, ethylene bromohyrin, 2-bromopropyl alcohol, 3-bromopropyl alcohol, 2-bromobutanol, 3-bromobutanol, 4-bromobutanol or 8-bromine octanol.
4. the synthetic method that is used for the fire retardant of fabric according to claim 3 is characterized in that: described halo saturated fatty alcohol is an ethylene chlorhydrin.
5. adopt the fire retardant of the method acquisition of claim 1.
6. the fire retardant of claim 5 is to the application in the flame-proof treatment of terylene, cotton or polyvinyl fabric.
CNB2007100388267A 2007-03-30 2007-03-30 Fire retardant for fabric and synthesis method thereof Expired - Fee Related CN100494555C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100388267A CN100494555C (en) 2007-03-30 2007-03-30 Fire retardant for fabric and synthesis method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100388267A CN100494555C (en) 2007-03-30 2007-03-30 Fire retardant for fabric and synthesis method thereof

Publications (2)

Publication Number Publication Date
CN101033581A true CN101033581A (en) 2007-09-12
CN100494555C CN100494555C (en) 2009-06-03

Family

ID=38730311

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2007100388267A Expired - Fee Related CN100494555C (en) 2007-03-30 2007-03-30 Fire retardant for fabric and synthesis method thereof

Country Status (1)

Country Link
CN (1) CN100494555C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102400396A (en) * 2010-09-07 2012-04-04 上海雅运纺织助剂有限公司 Environmentally friendly fabric fire retardant and its preparation method and use
CN103074763A (en) * 2012-12-28 2013-05-01 苏州市华智顾纺织有限公司 Production method for flame-retardant cotton fabric
CN103074759A (en) * 2013-01-14 2013-05-01 青岛大学 Preparation method of metal ion flame retardant modification cotton fabric
CN103361976A (en) * 2013-07-05 2013-10-23 吴江龙纺纺织有限公司 Preparation method of anti-flaming modal fabric
CN103395263A (en) * 2013-08-14 2013-11-20 苏州鑫汉纺纺织有限公司 Novel dustproof shell fabric
CN106884212A (en) * 2017-02-26 2017-06-23 浙江峰赫纺织有限公司 A kind of flame vinylon fiber and preparation method thereof
CN107881773A (en) * 2017-12-05 2018-04-06 苏州兆海纺织科技有限公司 A kind of arrangement application process of phosphor nitrogen combustion inhibitor on dacron
CN116289195A (en) * 2023-01-16 2023-06-23 苏州大学 Flame-retardant polyester fabric based on phosphorus/nitrogen/boron flame-retardant system and preparation method thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102400396A (en) * 2010-09-07 2012-04-04 上海雅运纺织助剂有限公司 Environmentally friendly fabric fire retardant and its preparation method and use
CN102400396B (en) * 2010-09-07 2013-05-08 上海雅运纺织助剂有限公司 Environmentally friendly fabric fire retardant and its preparation method and use
CN103074763A (en) * 2012-12-28 2013-05-01 苏州市华智顾纺织有限公司 Production method for flame-retardant cotton fabric
CN103074759A (en) * 2013-01-14 2013-05-01 青岛大学 Preparation method of metal ion flame retardant modification cotton fabric
CN103361976A (en) * 2013-07-05 2013-10-23 吴江龙纺纺织有限公司 Preparation method of anti-flaming modal fabric
CN103395263A (en) * 2013-08-14 2013-11-20 苏州鑫汉纺纺织有限公司 Novel dustproof shell fabric
CN106884212A (en) * 2017-02-26 2017-06-23 浙江峰赫纺织有限公司 A kind of flame vinylon fiber and preparation method thereof
CN106884212B (en) * 2017-02-26 2019-08-06 浙江峰赫纺织有限公司 A kind of flame vinylon fiber and preparation method thereof
CN107881773A (en) * 2017-12-05 2018-04-06 苏州兆海纺织科技有限公司 A kind of arrangement application process of phosphor nitrogen combustion inhibitor on dacron
CN116289195A (en) * 2023-01-16 2023-06-23 苏州大学 Flame-retardant polyester fabric based on phosphorus/nitrogen/boron flame-retardant system and preparation method thereof
CN116289195B (en) * 2023-01-16 2024-02-09 苏州大学 Flame-retardant polyester fabric based on phosphorus/nitrogen/boron flame-retardant system and preparation method thereof

Also Published As

Publication number Publication date
CN100494555C (en) 2009-06-03

Similar Documents

Publication Publication Date Title
CN100494555C (en) Fire retardant for fabric and synthesis method thereof
CN101475706B (en) Rear earth organic phosphonate flame retardant, synthesizing method and use thereof
CN106243385A (en) A kind of DOPO based flameproofing and preparation method thereof
CN104419003B (en) One kind fire retardant of polyamide containing phospho hetero phenanthrene and its preparation and application
CN111253546B (en) Preparation method and application of reactive polyurethane flame retardant
CN102977144B (en) A kind of organic secondary phosphine acid salt containing triazine ring structure and preparation method thereof
CN102585347A (en) Halogen-free intumescent flame-retardant polypropylene mixture and preparation method thereof
CN102010585A (en) Preparation method of efficient and environment-friendly composite fire retardant
CN102516786B (en) Silicon modified lignin intumescent flame-retardant charring agent and preparation method and application thereof
CN106939511B (en) A kind of phosphorus nitrogen chlorine-resistant fire retardant and its synthetic method
CN105541917A (en) Phosphorus and nitrogen cooperated polyester flame retardant and preparation method thereof
CN110218305B (en) Phosphorus flame-retardant anti-dripping type low-melting-point polyester material and preparation method and application thereof
CN104220666A (en) Flameproofing agent for fibers
CN102251390B (en) Halogen-free moisture permeable flame-retardant coating adhesive for heavy fabrics and preparation method
KR20030005934A (en) method for manufacturing dicyclic phosphorus-Melamine compounds having superior fire retardancy and fire retardant material using thereof
CN102627771A (en) Pentaerythritol diphosphonate dichloride ethylenediamine macromolecular flame retardant and preparation method thereof
CN103173888B (en) Halogen-free flame retardant polyester material and preparation method thereof
CN103254235B (en) Butyl triazinyl triphenyl hypophosphite compound and preparation method thereof
CN101671434A (en) Method for manufacturing phosphorus flame-retardant polyester
CN103741470B (en) Terylene hot rolling gluing fire retardant nonwoven fabric flame-retardant emulsion
CN1556273A (en) Silicon phosphonate containing fire rotardant and its synthesis method
CN106674533A (en) Preparation method and application of nitrogen-phosphorus synergistic flame retardant with dendrimer structure
CN107129595A (en) A kind of hyperbranched expandable type fire retardant and preparation method thereof
CN101608401A (en) Preparation method of terylene durable fire retardant
KR100665047B1 (en) Flameproof processing composition for textile fabrics, flameproof processing method and flameproof textile fabrics manufactured thereby

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Hangzhou Meigao Huayi Chemical Co., Ltd.

Assignor: Soochow University

Contract fulfillment period: 2009.6.23 to 2015.6.22 contract change

Contract record no.: 2009320001056

Denomination of invention: Fire retardant for fabric and synthesis method thereof

Granted publication date: 20090603

License type: Exclusive license

Record date: 2009.7.7

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.23 TO 2015.6.22; CHANGE OF CONTRACT

Name of requester: HANGZHOU MEIGAO HUAYI CHEMICAL INDUSTRY CO., LTD.

Effective date: 20090707

C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: Suzhou City, Jiangsu province 215137 Xiangcheng District Ji Road No. 8

Patentee after: Soochow University

Address before: 215123 Suzhou City, Suzhou Province Industrial Park, No. love road, No. 199

Patentee before: Soochow University

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090603

Termination date: 20140330