CN101528834A - Flame retardant blends for flexible polyurethane foam - Google Patents
Flame retardant blends for flexible polyurethane foam Download PDFInfo
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Abstract
The present invention discloses a composition that comprises an otherwise flammable flexible polyurethane foam and a multi-component flame retardant additive. The flame retardant additive includes an alkyl substituted aryl phosphate and an alkyl phosphate ester wherein the alkyl groups range from C4 to C20 and contain one to six oxygen atoms in the alkyl chain. Optionally, the flame retardant additive includes a halogenated flame retardant containing more than 30 wt. percent of bromine, chlorine, or a mixture thereof.
Description
Right of priority
According to Title 35, United code, § 119, and we require the applying date, and to be on March 22nd, 2006, title be the rights and interests of the U.S. Provisional Application 60/785,002 of the flame retardant composition that is used for vinylbenzene (styrenics).
Background of the present invention
1. invention field
The present invention relates to be used for the fire retardant of flexible PU foam composition and make the fire-retardant method of flexible PU foam.Particularly, the present invention relates to comprise the composition of flammable flexible PU foam and polycomponent flame-retardant additive.
2. description of related art
Flexible PU foam of the present invention is known in [chemistry] industry, information about preparation and reactant commonly used can obtain in many resources, comprises polymer science and engineering encyclopedia (ENCYCLOPEDIA OF POLYMER SCIENCE AND ENGINEERING), the 13rd volume (John Wiley﹠amp; Sons, Inc., 1988).
When being used for furniture applications, the producer of flexible PU foam wishes to produce and meets the foam that higher fire security measure requires flammability standards.California proposes to improve flammability standards with Bulletin 117 forms.US Congress and Consumer Product Safety Commission are just promoting the national fire security measure standard of ornament furnishings.
Used traditionally based on the fire retardant of pentabromo-phenylbenzene oxidation thing (PBDE) and alkylated triaryl phosphates and stipulated to meet security against fire.Owing to worry its influence to environment, pentabromo-phenylbenzene oxidation thing is attacked recently.Therefore " no PBDE " fire retardant has been used by greater amount ground and has obtained promoting as the alternatives of meet environmental requirement.
U.S. Patent number 4,746,682 disclose a kind of liquid composition, the method for preparing this resistance combustion polyurethane foam and this foam itself as the polyurethane foam flame-retardant additive, this liquid composition is a kind of additive that is used for polyurethane foam, it comprises many PBDEs and alkylated triaryl phosphates, and this PBDE and this triaryl phosphate provide with enough amounts so that every weight part triaryl phosphate provides 0.7 to 4 weight part bromine.
U.S. Patent number 5,728,760 disclose a kind of by comprising that the bromo-benzoic acid ester cpds prepares the method for flame retardant polyurethane and by the bromo-benzoic acid ester cpds being introduced the method for preparing flame-proof polyvinyl chloride, unsaturated polyester and Resins, epoxy in the polymeric system in polyurethane mixture.This bromo-benzoic acid ester cpds also can be as the softening agent of PVC and rubber.Be described in U.S. Patent number 5,728,760, as Firemaster 550 and " no PBDE " fire retardant of known Great Lakes Chemical Corporation (being called as ChemturaCorporation now) product is the blend of tetrabromo benzoate and isopropylation triaryl phosphate.Yet Firemaster 550 typically must be to use than the amount of PBDE based flameproofing high about 5% in low density foam (1.2 pounds/cubic feet (p.c.f.)), and the increase of this fire retardant loading level has increased the cost of producing the gained polyurethane foam.
Industrial lacking, meet stricter flammable requirement and have the fire retardant systems of comparing the efficient of similar or improvement with conventional P BDE based flameproofing.
Summary of the invention
The present invention relates to comprise the composition of flammable flexible PU foam and polycomponent flame-retardant additive and make the fire-retardant method of flexible PU foam.The present invention meets that stricter combustibility requires and compares with traditional PBDE based flameproofing and has similarly or the efficient of improving.
The present invention includes flame retardant composition, said composition is used flexible PU foam, the aryl phosphate ester that the alkyl that uses following formula to represent replaces:
R wherein
1, R
2, and R
3Be hydrogen or linearity or branching C independently
1To C
6Alkyl.Use comprises the flame-retardant additive of alkyl phosphate, and alkyl is C in described alkyl phosphate
4To C
20And in alkyl chain, contain 1 to 6 Sauerstoffatom.
More specifically, the present invention relates to comprise flammable in other cases flexible PU foam and the composition that comprises the polycomponent flame-retardant additive of at least three kinds of components.Component A is the aryl phosphate ester that alkyl replaces, and B component is bromine, chlorine or its blended halogenated fire-retardants that comprises greater than 30wt%, and component C is the alkyl phosphate that contains aerobic in alkyl chain.
More specifically, the present invention relates to comprise the flame retardant compound of flexible PU foam.The present invention includes the aryl phosphate ester that alkyl that component A, following formula represent replaces:
R wherein
1, R
2And R
3Be hydrogen or linearity or branching C independently
1To C
6Alkyl.B component is the brominated flame retardant that comprises greater than the 30wt% bromine.Component C is to be C by alkyl
4To C
20And the flame-retardant additive that the alkyl phosphate that contains 1 to 6 Sauerstoffatom in alkyl chain is formed.
The present invention includes the method that makes flexible PU foam fire-retardant, wherein flexible PU foam is filled with flame retardant composition with the content that meets desirable regulations satisfactorily.
Detailed description of the preferred embodiment
The present invention relates to fire retardant flexible PU foam composition and make the fire-retardant method of flexible PU foam, said composition comprises flammable flexible PU foam and polycomponent flame-retardant additive.
This polycomponent flame-retardant additive can pass through to mix the explained hereafter of following material: component A: the aryl phosphate ester that alkyl replaces, and optional B component: contain bromine, chlorine or its blended halogenated fire-retardants greater than 30%, and component C: alkyl is C
4To C
20And the alkyl phosphate that in alkyl chain, contains aerobic.
More specifically, component A is the aryl phosphate ester that the alkyl represented of following formula replaces:
Each R wherein
1, R
2And R
3Be hydrogen or linearity or branching C independently
1To C
6Alkyl.The aryl phosphate ester that preferred alkyl replaces comprises tert-butylation triphenylphosphate, isobutyl triphenylphosphate, Tritolyl Phosphate, isopropylated triphenyl phosphates and their mixture.
More preferably, component A material is butylated triphenyl phosphates and isopropylation Triphenyl phosphate, and it comprises the blended triaryl phosphate, and wherein ring contains 0,1 or 2 butyl or sec.-propyl separately.These alkylating triaryl phosphates contain the phosphorus that the 5.5wt% that has an appointment arrives about 9wt%, and this depends on the alkylation degree.
The term " alkylation " that is used for component A preferably includes non--alkylated compound and single-or the mixture of two-alkylated compound.It is desirable for component A and comprise 20% many so non--alkylated compounds.This alkylated compound can be about 30% or more single-and/or two-alkylated compound mixture of isomers.
The B component flame-retardant additive is formed by containing greater than the bromine of 30wt% or chlorine or its blended halogenated fire-retardants, preferred ingredients B flame-retardant additive is the brominated flame retardant that contains greater than the 30wt% bromine, it also is operable having the compound that is less than about 30wt% bromine, but it is believed that this compounds that needs undue a large amount for necessary flame retardancy level is provided.The high level of fire retardant has disadvantageous effect for resulting foamy physicals.Suitable brominated flame-retardant comprises the compound that contains following group: various haloalkyls, aryl or alkylaryl are not lower than about 30wt% as long as the size of group can not be diluted to content of halogen.B component can be monomer, dipolymer or oligopolymer.
Preferred ingredients B additive comprises alkylated aromatic hydrocarbon, aromatic ether, benzoic ether and the phthalic ester of bromination, and these materials are represented by following formula:
Wherein n is 1 to 5 integer for alkylated aromatic hydrocarbon, ether and benzoic ether, it for phthalic ester 1 to 4 integer, R still can choose the hydrocarbyl group that contains nitrogen, oxygen and/or sulphur atom wantonly, and this hydrocarbyl group can contain a plurality of nitrogen, oxygen or sulphur atom.This benzoic ether and phthalic ester can be chosen wantonly and be blended into together.
Term used herein " alkyl " comprises hydrocarbon and substantial hydrocarbyl group, " substantial hydrocarbyl group " refer to contain the main hydrocarbon character that can not change group or significantly the weakening ratio compound as the group of the hetero atom substituents of the effect of fluoropolymer resin stablizer.
The example of hydrocarbyl group comprises following group:
(1) hydrocarbon substituent, be aliphatics (for example alkyl or alkenyl), alicyclic (for example cycloalkyl, cycloalkenyl group) substituting group, aromatic series-, the aliphatics substituting group of aliphatics-and alicyclic-replace, aromatic substituents, aromatic series-, the aromatic substituents of aliphatics-and alicyclic-replace etc., and wherein the ring substituents that finishes of ring another part by molecule is (promptly, for example, the substituting group shown in any two kinds can form alicyclic group together);
(2) hydrocarbon substituent of Qu Daiing, that is, those contain the substituting group of the non-hydrocarbyl group that does not change the main hydrocarbon character of substituting group in the context of the invention; Those skilled in the art will know that this type of group (for example halogen, hydroxyl, sulfydryl, nitro, nitroso-group, alkylsulfonyl (sulfoxy) etc.);
(3) hetero atom substituents promptly, removes and to have main hydrocarbon character in the context of the invention, also contains to be present in addition the ring is made up of carbon atom or the substituting group (for example alkoxyl group or alkylthio) of the atom in addition of the de-carbon in the chain.Suitable heteroatoms is conspicuous for those of ordinary skills, comprises for example sulphur, oxygen, nitrogen, and the substituting group as for example pyridyl, furyl, thienyl, imidazolyl etc.Preferably, in hydrocarbyl group, exist for per ten carbon atoms be no more than about two, more preferably no more than an assorted substituting group.Most preferably, do not have such hetero atom substituents in hydrocarbyl group, that is, this hydrocarbyl group is pure hydrocarbon.
Component C is made up of flame-retardant additive, and this flame-retardant additive is C by alkyl wherein
4To C
20And the alkyl phosphate that contains Sauerstoffatom in alkyl chain is formed.Sauerstoffatom in the chain is 1 to 6.Preferably, there is 1 or 2 Sauerstoffatom in the chain.It is oxygen heterocyclic ring that this alkyl can be chosen wantonly.
Preferred alkyl phosphate is represented by following structure:
Component A and B provide with decision performance optimum balance ratio and use.The ratio of component A and B component typically from approximately all be component A to about 5: 95wt%, preferably from about 70: 30 to about 30: 70wt%.Most preferably, this ratio is the butylated triphenyl phosphates of about 50wt% and brominated benzoate esters or the phthalic ester of about 50wt%.
The combination of component A, B and C can separately be carried out so that A, B and C provide as single flame retardant material, and perhaps one-component can be joined respectively in other urethane reaction thing.Component C is added into the percentage ratio of component A and B blend.Component A and B arrived about 1 in about typically 25: 75 with respect to the ratio of component C: 99wt%, preferred about 15: 85 to about 1: 99, when using as pre-combination d packing (pre-combined package), the A+B+C blend typically uses to about 25 parts/100 parts amounts based on the polyvalent alcohol that uses in the prescription with about 5.
Unexpectedly, (wherein component A is the butylation triaryl phosphate to contain the blend of component A and C, component C is three (butoxyethyl group) phosphoric acid ester) or (wherein component A is the butylation triaryl phosphate to contain the blend of component A, B and C, B component is a tetrabromo benzoate, and component C is three (butoxyethyl group) phosphoric acid ester) foam of 4 to 5 parts/100 parts of polyvalent alcohols is than the efficient height that only contains component A and B blend.People can not expect having low component A, B and the blend of C than content of halogen and compare with the compared blend of component A and B and have identical or higher efficient, same people can not expect having similar but relatively component A specific efficiency is higher mutually with independent component A than the component A of low phosphorus content and the blend of C.
Observe, in the blend of component A, B and C or in the blend of component A and C, wherein component C contains in alkyl chain and surpasses an oxygen, and the increase ratio of fire retardant efficient is big when only having a Sauerstoffatom.
Compound of the present invention can use with desirable other additive that is used to prepare final polymer composition, these other additives comprise filler, toughener is glass fibre for example, pigment, processing aid comprises the stablizer of hydrotalcite, FLOW IMPROVERS, fire retardant and synergistic agent be antimony compounds and zinc borate, zinc, zinc sulphide for example, and other additive well known by persons skilled in the art.
The present invention can be used to require other resin of flame-retardant nature.Require other resin of flame-retardant nature to comprise the polyester for example alloy and the blend of polybutylene terephthalate (PBT) or polyethylene terephthalate (PET), polymeric amide, polycarbonate, urethane, polystyrene and polyolefine, Resins, epoxy or these resins.
Embodiment
The laboratory flexible PU foam uses following table 1 listed prescription to be prepared by hand blending means known in the art, the polyurethane foam formulation is become three kind 1.2,1.5 and 1.8 pound/cubic feet final foam density.Join Flame Retardancy of Polyurethane Foam agent and their loading levels separately shown in table 2 and 3.
For each different foam density, every kind of fire retardant in table 2 and 3 is joined in the polyurethane foam prescription of table 1.The fire retardant loading level of listing in table 2 and the table 3 is that described standard test is known as California ' s Bulletin 117 or Department of Transportation's Federal Motor Vehicle Safety Standards 302 for the minimum of standard test with the fire retardant separately of listed foam density.
Table 1 illustrates the prescription of the polyurethane foam that is used for three desired density 1.2p.c.f, 1.5p.c.f. and 1.8p.c.f., and all components is represented with weight part.
Table 1
The polyurethane foam prescription
| 1.2pcf | 1.5pcf | 1.8pcf | |
| Polyether glycol (56.6OH index) | 100 | 100 | 100 |
| Water | 6.2 | 4.4 | 3.3 |
| Fire retardant | Face as follows | Face as follows | Face as follows |
| Amine catalyst | 0.48 | 0.5 | 0.5 |
| Organic silicon surfactant | 1 | 1 | 1 |
| Tin catalyst | 0.26 | 0.26 | 0.26 |
| TDI | 75.9 | 56.7 | 45.1 |
The loading level that joins the fire retardant in the polyurethane foam prescription of table 1 depends on that desirable foamy uses and foamy density.Table 2 illustrates by the minimum fire retardant loading level in the acceptable polyurethane foam with California ' the s flammability standards of Bulletin 117 forms.California ' s Bulletin117 requires the fire retardant polyurethane foam by flaming test (open flame test) and the test of glowing (smoldering test).
Table 3 illustrates the minimum fire retardant loading level in polyurethane foam by FMVSS Federal Motor Vehicle Safety Standard 302.
CALIFORNIA BULLETIN 117 tests
The test of California ' s Bulletin 117 flamings is used for measuring resilient foams material flame resistant and scorching hot propagated and coking tendency, the rectangle sample of the fire retardant polyurethane foam of this 12 inches long, 3 inches wide of test use, 1/2 inch dark size.
Sample must test and regulate minimum 24 hours with being lower than at 70 ± 5 °F under 55% relative humidity.The bottom margin vertical suspension of sample and clamper and sample above the burner of top 0.75 inch, burner flame is regulated flame height to obtain 1.5 inches by the needle valve of burner base, and the air of burner is supplied with and is forever closed simultaneously.The middle part than low edge at sample vertically applied burner flame 12 seconds.
The char length of measure sample is accurate to 0.1 inch and residual flame time and residual vehement (afterglow) time to be accurate to 0.1 second.Measure maximum and average char length, residual vehement and residual flame for foam materials.The residual flame time is to extinguish the time that the back sample burns away at burner flame, comprises the residual flame that the material fusion is dripped.The residual vehement time is the time of the follow-up supervention heat of sample cease combustion (glow), and it is residual vehement to comprise that the material fusion is dripped.Char length is to be exposed to the distance of the sample end of flame apart from the top edge of void area.Before measurement, the zone of easily removing of carbon containing coking should be removed.
For by flaming test, the average coke length of fire retardant polyurethane foam samples necessarily can not surpass the maximum char length of 6 inches and any independent sample necessarily can not be above 8 inches.Average residual flame comprises the average residual flame of melting material, necessarily can not surpass 5 seconds and the maximum residual flame of any independent sample necessarily can not be above 10 seconds.Average residual average residual vehement, that comprise melting material is vehement, necessarily can not be above 15 seconds.
The fire retardant polyurethane foam also must be by the shaker test of glowing.This test requirements document does not have filter-tip natural baccy cigarette and flammable cotton yarn or cotton yarn/polyester blend sheet test fabric to cover cigarette.
Cigarette is lighted to be no more than 4 millimeters burnings and to cover with flaky material.Carry out this test and stop minimum 5 minutes up to all burning signs.All carbon containing cokings are broken the non-combustion parts of removing and measure the foam test plate on the slave plate into pieces by using spatula, are accurate to 0.1 gram.If all test sample have the non-residue that glows greater than 80%, then the fire resistant polyurethane foam sample is by the test of glowing.
Listed fire retardant is joined individually in the prescription of desirable polyurethane foam density of table 1 and according to above-mentioned California ' s Bulletin 117 standards and is tested in the table 2.Prescription represented in (measuring with part/100 part polyvalent alcohol) expression of the value of listed fire retardant in the table 2 such as the table 1 is for meeting the desired minimum fire retardant loading level of California ' s Bulletin 117 touchstones.
Table 2
Pass through the minimum filling that California ' s Bulletin 117 requires
The blend of presentation of results component A+B+C shown in the table 2 is compared to have with the foam composition that has than high halogen content, only use component A and B to prepare and is equated or bigger flame retarding efficiency.It is shocking, as shown in table 2, (wherein component A is the butylation triaryl phosphate to contain component A and C blend, component C is three (butoxyethyl group) phosphoric acid ester) or (wherein component A is the butylation triaryl phosphate to contain the blend of component A, B and C, B component is a tetrabromo benzoate, and component C is three (butoxyethyl group) phosphoric acid ester) polyurethane foam of 4 to 5 parts/100 parts of polyvalent alcohols is than the efficient height that only comprises component A or component A and B blend.
For example, for the polyurethane foam prescription passes through California ' s Bulletin 117, use comprises the flame retardant compound of general formula B component (50%) tetrabromo benzoate and component A (50%) butylation triaryl phosphate, require the 20php loading level for the 1.2p.c.f. polyurethane foam, require the 14php loading level and require the 9php loading level for the 1.5p.c.f. polyurethane foam for the 1.8p.c.f. polyurethane foam.Yet, use comprises the flame retardant compound of general formula B component (42.5%) tetrabromo benzoate and component A (42.5%) butylation triaryl phosphate and (15%) three butoxyethyl group phosphoric acid fat, only require the 16php loading level for the 1.2p.c.f. polyurethane foam, require the 11php loading level for the 1.5p.c.f. polyurethane foam, require the 6php loading level for the 1.8p.c.f. polyurethane foam, efficient increases by the adding of component C.
This result is because several reasons and unexpectedly.Unexpectedly compare component A, B and the C that has than low-halogen-content with the compared blend of component A and B, higher than the efficient of the compared blend of component A and B only.And, unexpectedly have less but only component A and the C with phosphorus content like the category-A is higher than the efficient of independent component A.
MotorVehicleSafetyStandard 302
Table 3 illustrates the minimum fire retardant loading level in the acceptable polyurethane foam by Department of Transportation's Federal Motor Vehicle Safety Standards 302 (MVSS-302).MotorVehicleSafetyStandard 302 requires the fire retardant polyurethane foam by being exposed to the horizontal firing rate test behind the flammule.
The merchant that rate of combustion or measured burning length and this length required time of burning are measured in MotorVehicleSafetyStandard 302 horizontal firing speed trials represents with mm/min.The MVSS-302 horizontal burning test requires polyurethane foam not burn or crosses its surface and the transmission flame front with 102mm/min or bigger speed.If material is just thought to meet the rate of combustion requirement from take fire before 60 seconds cease combustion and begin not from initial timing that burning surpasses 51mm of timing.
The MVSS-302 horizontal burning test carries out being ventilated (drafts) with the protection sample in metal shell, exists the hole to carry (tubing) and be used for ventilation with pipe to allow Bunsen burner.
Sample is regulated 24 hours 50% time at 21 ℃, relative humidity before the test.Each sample is.Thickness is the thickness of the single or matrix material that uses in the vehicles.Between test sample inserts with the U-shaped framework of coupling metal frame (metal stock).The flame of Bunsen burner is set, and closes the inlet mouth of burner.Sample is placed in the housing with level attitude, settles Bunsen burner so that the center of burner nozzle is lower than the center of the bottom margin of sample opening end.Sample was exposed to flame 15 seconds.The opening end 38mm place that reaches apart from sample when the flame of burning sample picks up counting.Measuring flame proceeded to by the time of clamping end 38mm place cost of sample apart from sample.If flame does not reach this specified terminal point, then flame is proceeded to burning time of stopping to locate and carry out timing.Rate of combustion is calculated by following formula:
Rate of combustion=60 * (distance/time)
Table 3 illustrates by the minimum fire retardant loading level in the desired polyurethane foam of U.S. Department of Transportation Federal Motor Vehicle Safety Standards flammability test.
Table 3
Minimum by MotorVehicleSafetyStandard 302 is filled
The blend of presentation of results component A+B+C shown in the table 3 with have high halogen content more, only compare to have with the foam composition of component A and B preparation and be comparable to or bigger flame retarding efficiency.Surprisingly, as shown in table 3, (wherein component A is the butylation triaryl phosphate to contain the blend of component A and C, component C is three (butoxyethyl group) phosphoric acid ester) or (wherein component A is the butylation triaryl phosphate to contain the blend of component A, B and C, B component is a tetrabromo benzoate, and component C is three (butoxyethyl group) phosphoric acid ester) polyurethane foam of 4 to 5 parts/100 parts of polyvalent alcohols is than the efficient height that only contains the blend of component A and B.
For example, for the polyurethane foam prescription passes through Department of Transportation's Federal Motor Vehicle Safety Standards 302, use comprises the flame retardant compound of general formula B component (50%) tetrabromo benzoate and component A (50%) butylation triaryl phosphate, require the 23php loading level for the 1.2p.c.f. polyurethane foam, require the 14php loading level and require the 4php loading level for the 1.5p.c.f. polyurethane foam for the 1.8p.c.f. polyurethane foam.Yet, use comprises the flame retardant compound of general formula B component (42.5%) tetrabromo benzoate and component A (42.5%) butylation triaryl phosphate and (15%) three butoxyethyl group phosphoric acid ester, only require the 19php loading level for the 1.2p.c.f. polyurethane foam, require the 12php loading level for the 1.5p.c.f. polyurethane foam, with require the 3.5php loading level for the 1.8p.c.f. polyurethane foam, efficient increases by the adding of component C.
This result is because several former thereby unexpected.Unexpectedly compare the comparable blend efficient that the component A, the B that have than low-halogen-content and C have only component A and B with the comparable blend of component A and B higher.And, unexpectedly only have the component A of the phosphorus content that is similar to A and C efficient height than independent component A.
Claims (21)
1, a kind of flame retardant composition comprises the aryl phosphate ester that alkyl that following formula represents replaces:
R wherein
1, R
2And R
3Be hydrogen or linearity or branching C independently
1To C
6Alkyl; And
Flame-retardant additive, this flame-retardant additive comprises alkyl phosphate, and wherein alkyl is C
4To C
20And in alkyl chain, comprise 1 to 6 Sauerstoffatom.
2, the composition of claim 1, the aryl phosphate ester that wherein said alkyl replaces is selected from following: tert-butylation triphenylphosphate, isobutyl triphenylphosphate, Tritolyl Phosphate, isopropylated triphenyl phosphates and their mixture.
3, the composition of claim 1, the aryl phosphate ester that wherein said alkyl replaces is the butylated triphenyl phosphates that comprises triaryl phosphate, it has the independent ring that contains 0,1 or 2 butyl, when described triaryl phosphate when being alkylating, described alkylated triaryl phosphates contains 5.5 to 9wt% phosphorus.
4, the composition of claim 1, the aryl phosphate ester that wherein said alkyl replaces is the isopropylated triphenyl phosphates that comprises triaryl phosphate, it has the independent ring that contains 0,1 or 2 sec.-propyl, when described triaryl phosphate when being alkylating, described alkylated triaryl phosphates comprises 5.5 to 9wt% phosphorus.
5, the composition of claim 1, wherein said alkyl phosphate is an oxygen heterocyclic ring.
6, the composition of claim 1, the alkyl of wherein said alkyl phosphate are C
4To C
20And in alkyl chain, contain 1 to 6 Sauerstoffatom, by representing with following formula:
7, the composition of claim 1, wherein said alkyl phosphate are three (butoxyethyl group) phosphoric acid ester.
8, a kind of flame retardant composition that uses with flexible PU foam, described composition comprises:
Component A, described component A are the aryl phosphate esters that the alkyl represented of following formula replaces:
R wherein
1, R
2And R
3Be hydrogen or linearity or branching C independently
1To C
6Alkyl;
B component, described B component comprise bromine, chlorine or its blended halogenated fire-retardants that contains greater than 30%; And
Component C, described component C comprises flame-retardant additive, this flame-retardant additive comprises and has C
4To C
20Alkyl and in alkyl chain, contain the alkyl phosphate of 1 to 6 Sauerstoffatom.
9, the composition of claim 8, wherein said component A is selected from following: tert-butylation triphenylphosphate, isobutyl triphenylphosphate, Tritolyl Phosphate, isopropylated triphenyl phosphates and their mixture.
10, the composition of claim 8, wherein said component A is the butylated triphenyl phosphates that comprises triaryl phosphate, it has the independent ring that contains 0,1 or 2 butyl, and when described triaryl phosphate when being alkylating, described alkylated triaryl phosphates contains 5.5 to 9wt% phosphorus.
11, the composition of claim 8, wherein said component A is the isopropylated triphenyl phosphates that comprises triaryl phosphate, it has the independent ring that contains 0,1 or 2 sec.-propyl, when described triaryl phosphate when being alkylating, described alkylated triaryl phosphates contains 5.5 to 9wt% phosphorus.
12, the composition of claim 8, wherein said B component additive are selected from bromination alkylated aromatic compound that following formula represents, brominated aromatic ether, brominated benzoate esters, phthalic ester and composition thereof,
Wherein n is 1 to 5 integer for alkylated aromatic compound, ether and benzoic ether, is 1 to 4 integer for phthalic ester, and R is the alkyl that randomly comprises at least one nitrogen, oxygen or sulphur atom.
13, the composition of claim 8, wherein said alkyl phosphate is an oxygen heterocyclic ring.
14, the composition of claim 8, the alkyl of wherein said alkyl phosphate are C
4To C
20And in alkyl chain, contain 1 to 6 Sauerstoffatom, by representing with following formula:
15, the composition of claim 8, wherein said alkyl phosphate are three (butoxyethyl group) phosphoric acid ester.
16, the composition of claim 8, wherein said component A and described B component are to exist to about 5: 95 weight percent in about 99: 1 with component A with respect to B component.
17, the composition of claim 16, wherein said component A and described B component existed to about 30: 70 weight percent with about 70: 30.
18, the composition of claim 17, wherein said component A and described B component exist with about 50: 50 weight percent.
19, the composition of claim 8, wherein said component A and described B component with component C be that about 25: 75 to about 1: 99 weight percents exist.
20, the composition of claim 19, wherein component A and B component with component C be that about 15: 85 to about 1: 99 weight percents exist.
21, a kind of flame retardant composition that uses with flexible PU foam, described flame retardant composition comprises:
Component A, described component A are the aryl phosphate esters that alkyl replaces, and it is selected from butylation triphenyl and isopropylated triphenyl phosphates;
B component, described B component comprises brominated flame retardant, described brominated flame retardant contains greater than the following material of being selected from of 30wt%: alkylated aromatic compound, aromatic ether, benzoic ether and phthalic ester; And
Component C, described component C comprises flame-retardant additive, and this flame-retardant additive comprises alkyl phosphate, and wherein alkyl is C
4To C
20And contain 1 to 6 Sauerstoffatom at alkyl chain, by representing with following formula:
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78500206P | 2006-03-22 | 2006-03-22 | |
| US60/785,002 | 2006-03-22 | ||
| US11/723,539 | 2007-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101528834A true CN101528834A (en) | 2009-09-09 |
Family
ID=41095746
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200780009941XA Pending CN101528834A (en) | 2006-03-22 | 2007-03-21 | Flame retardant blends for flexible polyurethane foam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011150567A1 (en) * | 2010-06-03 | 2011-12-08 | Dow Global Technologies Llc | Halogen-free, flame retardant tpu composite |
| TWI796920B (en) * | 2021-11-05 | 2023-03-21 | 財團法人工業技術研究院 | Halogen free flame-retardant materials and method for manufacturing the same |
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2007
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011150567A1 (en) * | 2010-06-03 | 2011-12-08 | Dow Global Technologies Llc | Halogen-free, flame retardant tpu composite |
| CN102939338A (en) * | 2010-06-03 | 2013-02-20 | 陶氏环球技术有限责任公司 | Halogen-free, flame retardant tpu composite |
| CN102939338B (en) * | 2010-06-03 | 2014-11-19 | 陶氏环球技术有限责任公司 | Halogen-free, flame retardant tpu composite |
| TWI796920B (en) * | 2021-11-05 | 2023-03-21 | 財團法人工業技術研究院 | Halogen free flame-retardant materials and method for manufacturing the same |
| US11840656B2 (en) | 2021-11-05 | 2023-12-12 | Industrial Technology Research Institute | Halogen free flame-retardant materials and method for manufacturing the same |
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Application publication date: 20090909 |