JPH04209616A - Production of polyurethane foam - Google Patents
Production of polyurethane foamInfo
- Publication number
- JPH04209616A JPH04209616A JP2340591A JP34059190A JPH04209616A JP H04209616 A JPH04209616 A JP H04209616A JP 2340591 A JP2340591 A JP 2340591A JP 34059190 A JP34059190 A JP 34059190A JP H04209616 A JPH04209616 A JP H04209616A
- Authority
- JP
- Japan
- Prior art keywords
- polyurethane foam
- weight
- parts
- foam
- flame retardant
- 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.)
- Pending
Links
- 229920005830 Polyurethane Foam Polymers 0.000 title abstract description 17
- 239000011496 polyurethane foam Substances 0.000 title abstract description 17
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000003063 flame retardant Substances 0.000 claims abstract description 20
- 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 claims abstract description 18
- 229920005862 polyol Polymers 0.000 claims abstract description 11
- 150000003077 polyols Chemical class 0.000 claims abstract description 11
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 10
- 229920000570 polyether Polymers 0.000 claims abstract description 10
- 229920002545 silicone oil Polymers 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 5
- 239000012948 isocyanate Substances 0.000 claims abstract description 5
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 5
- 150000001412 amines Chemical class 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims abstract description 4
- 239000000049 pigment Substances 0.000 claims abstract description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 6
- 239000010452 phosphate Substances 0.000 claims description 6
- -1 and if necessary Substances 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 3
- 239000012974 tin catalyst Substances 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 13
- 239000010439 graphite Substances 0.000 abstract description 13
- 229910002804 graphite Inorganic materials 0.000 abstract description 13
- 239000006260 foam Substances 0.000 abstract description 10
- 238000002156 mixing Methods 0.000 abstract description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000005187 foaming Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004604 Blowing Agent Substances 0.000 abstract description 2
- 239000002685 polymerization catalyst Substances 0.000 abstract description 2
- 239000003381 stabilizer Substances 0.000 abstract description 2
- 150000002148 esters Chemical class 0.000 abstract 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 239000002994 raw material Substances 0.000 description 11
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 150000003014 phosphoric acid esters Chemical class 0.000 description 4
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012796 inorganic flame retardant Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明はポリリウレタンフォームの製造方法で、特に
難燃性軟質ポリリウレタンフォームの製造方法に関する
。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for producing polyurethane foam, and more particularly to a method for producing flame-retardant flexible polyurethane foam.
（従来の技術）
従来から、軟質ポリリウレタンフォームの難燃化方法に
は各種のものが知られているが、これを大別すると、分
子内にリン、ｌ＼ロゲンなどを有するポリオールを原料
に用いる反応型、いったん発泡成形されたポリリウレタ
ンフォームに、各種無機質難燃化剤を含浸させる浸漬型
、発泡成形に際し原料中に難燃化剤を配合する添加型の
３種となる◎この中の添加型をみると、各種の難燃剤を
用いるものが以前から提案されている。本出願人も先に
炭素繊維を用いるもの（特願昭４９−８０９０５）、塩
素化パラフィンと酸化アンチモンを併用するもの（特願
昭４８−１４３７２９）などを提案したか、そのほかに
も各種の無機物を用いるものが知られている。(Prior art) Various methods have been known for making flexible polyurethane foam flame retardant. There are three types: the reactive type used, the immersion type in which the polyurethane foam that has been foam-molded is impregnated with various inorganic flame retardants, and the additive type in which the flame retardant is blended into the raw material during foam molding. Looking at additive types, those using various flame retardants have been proposed for some time. The present applicant had previously proposed a method using carbon fiber (Japanese Patent Application No. 80905-1982), a method using a combination of chlorinated paraffin and antimony oxide (Patent Application No. 143729-1977), and various other inorganic materials. It is known to use
一般に、ポリリウレタンフォームの中でも特に軟質フオ
ームに難燃化剤を添加してこれを難燃化する場合は、そ
の製造技術とともにフオームの反発弾性などの低下を出
来るだけ回避することが、これに付随して解決すべき問
題として生じていた。In general, when adding a flame retardant to a particularly flexible polyurethane foam to make it flame retardant, it is important to avoid reducing the rebound resilience of the foam as much as possible in addition to the manufacturing technology. This has arisen as a problem that needs to be solved.
（発明が解決しようとする課題）
コノ発明は、軟質難燃性ポリリウレタンフォームを、製
造原料に膨脹性黒煙を難燃剤として添加する方法で得よ
うとするもので、しかも得られたポリリウレタンフォー
ムの物性の低下を出来るたけ損なわないようにしたもの
である。(Problems to be Solved by the Invention) The present invention aims to obtain a flexible flame-retardant polyurethane foam by a method of adding expanding black smoke as a flame retardant to manufacturing raw materials, and moreover, the obtained polyurethane foam is This is done to avoid deterioration of the physical properties of the foam as much as possible.
（課題を解決するための手段）
この発明は、ポリエーテルポリオール１００重量部に対
し、縮合リン酸エステル系難燃剤を８重量部以上と、膨
張性黒煙を１０〜５０重量部と、有機イソシアネート、
その他アミン触媒、錫触媒、シリコーン油、さらに必要
に応じて顔料、その他の添加剤を添加、混合して発泡さ
せることを特徴とするポリリウレタンフォームの製造方
法である。(Means for Solving the Problems) This invention provides 100 parts by weight of polyether polyol, 8 parts by weight or more of a condensed phosphate flame retardant, 10 to 50 parts by weight of expanding black smoke, and an organic isocyanate. ,
This method of producing polyurethane foam is characterized by adding and mixing an amine catalyst, a tin catalyst, a silicone oil, and if necessary, a pigment and other additives, followed by foaming.
以下に、この発明をさらに説明する。This invention will be further explained below.
この発明においては、難燃化剤を除く原料の選択、発泡
工程などについては従来公知の方法に従うものである。In this invention, the selection of raw materials except for the flame retardant, the foaming process, etc. follow conventionally known methods.
即ち、原料としては下記のものを選択し、発泡工程には
ワンショット法、プレポリマー法を採用すればよい。That is, the following materials may be selected as raw materials, and the one-shot method or prepolymer method may be adopted for the foaming process.
（ａ） ポリエーテルポリオール
（ｂ） トリレンジイソシアネート、４，４ジフエニ
ルメタンジイソシアネートなどの有機イソシアネート、
（ｃ） 錫系触媒、アミン系触媒に代表される重合触
媒
（ｄ） 水、メチレンクロライド等の発泡剤、（ｅ）
ンリコーンオイル等の整泡剤、（ｆ） 顔料その他
の充填剤、
この発明は、上記のポリウレタン発泡体の原料の中に、
ポリエーテルポリオール１００重量部に対して、難燃化
剤として膨脹性黒鉛を１０〜５０重量部、好ましくは１
５〜３０重量部、縮合リン酸エステルを８部以上添加混
合するものである。(a) Polyether polyol (b) Organic isocyanate such as tolylene diisocyanate and 4,4 diphenylmethane diisocyanate (c) Polymerization catalyst represented by tin catalyst and amine catalyst (d) Water, methylene chloride, etc. blowing agent, (e)
Foam stabilizer such as silicone oil, (f) Pigment and other fillers, This invention provides that among the raw materials for the polyurethane foam,
10 to 50 parts by weight, preferably 1 part by weight of expandable graphite as a flame retardant per 100 parts by weight of polyether polyol.
5 to 30 parts by weight and 8 or more parts of condensed phosphoric acid ester are added and mixed.
ここで用いる膨脹性黒鉛は、例えば特開昭５４−３８２
９２号で開示されている方法で製造されたもので、例え
ば２００℃以上の温度で加熱することによって、急速に
数十倍から数百倍に膨脹するものである。膨脹性黒鉛の
配合比が１０重量部未満でも難燃効果はあるが十分では
なく、またこれか５０重量部を超えるとこれを添加した
とき液体の粘度か著しく上昇し、この撹拌混合が困難と
なる。また、縮合リン酸エステルの添加量が８重量部未
満であると十分な難燃性を期待することは出来ない。こ
の好ましい配合比は８〜３０重量部である。The expandable graphite used here is, for example, disclosed in JP-A-54-382.
It is manufactured by the method disclosed in No. 92, and rapidly expands several tens to hundreds of times when heated at a temperature of 200° C. or higher, for example. Even if the compounding ratio of expandable graphite is less than 10 parts by weight, the flame retardant effect is achieved, but it is not sufficient; if it exceeds 50 parts by weight, the viscosity of the liquid increases significantly when it is added, making stirring and mixing difficult. Become. Furthermore, if the amount of condensed phosphoric acid ester added is less than 8 parts by weight, sufficient flame retardance cannot be expected. This preferred blending ratio is 8 to 30 parts by weight.
本願発明は、上記の膨脹性黒鉛を原料中に配合したこと
によって、ポリリウレタンフォームが火炎などの熱を受
けるとこれが急速に数十倍から数百倍に膨脹し、別に配
合した縮合リン酸と相俟って、優れた難燃効果を発揮す
る。このものの難燃性は、ＵＬ難燃規格、航空機クツシ
ョン難燃規格などに合格する難燃グレードの高いものと
なる。In the present invention, by blending the above-mentioned expandable graphite into the raw material, when the polyurethane foam is exposed to heat such as flame, it rapidly expands from several tens to hundreds of times, and when the polyurethane foam is exposed to heat such as flame, it rapidly expands, and when combined with condensed phosphoric acid, which is separately blended. Together, they exhibit excellent flame retardant effects. The flame retardance of this material is of a high flame retardant grade that passes UL flame retardant standards, aircraft cushion flame retardant standards, etc.
実施例１
分子量４５００．ＯＨ価３６の
ポリエーテルポリオール（Ｖ −
４７０１、三菱化成ダウ社製品） １００ 重量部縮
合リン酸エステル（ＵＦ５０４、
大へ化学社商品名） ２０ 〃エキ
スパンダプルグラファイト ２５１ｔ水
２．５＝ジ
エタノールアミン １．５”トリエチ
レンジアミン ０．１ ｌ／ジブチルチ
ンジラウレート ０．３５／ｌシリコーン油
１．５ ／／トリレンジイソシ
アネート ３７，５ 〃上記原料の中、あらかし
めポリエーテルポリオールに、縮合リン酸エステル及び
エキスパンダプルクラファイトを十分混合撹拌し、これ
に残りの配合原料を混合して、ワンショット法に従って
軟−質ウレタンフオームを製造した。この軟質ウレタン
フオームは、密度０． ０５０ ｇ／ｃｎ＋’で均一な
気泡を有していた。引張強さは０ 、 ９ ｋｇ ／
ｃｍ ２、永久歪み８％、反撥弾性は５０％で、通常の
ポリリウレタンフォームと比較して殆ど遜色がながった
。Example 1 Molecular weight 4500. Polyether polyol with OH number 36 (V-4701, Mitsubishi Kasei Dow Co., Ltd. product) 100 parts by weight Condensed phosphoric acid ester (UF504, Daihe Kagaku Co., Ltd. product name) 20 Expander pull graphite 251 t water
2.5=diethanolamine 1.5” triethylenediamine 0.1 l/dibutyltin dilaurate 0.35/l silicone oil
1.5 //Tolylene diisocyanate 37,5 〃Among the above raw materials, thoroughly mix and stir the warmed polyether polyol, condensed phosphate ester and expander pulcrarite, and mix the remaining raw materials to this, A flexible urethane foam was produced according to the one-shot method. This soft urethane foam has a density of 0. 050 g/cn+' and had uniform bubbles. Tensile strength is 0.9 kg/
cm 2 , permanent set of 8%, and rebound resilience of 50%, which was almost comparable to normal polyurethane foam.
このものを耐火性試験、ＦＡＲ２５−８５３（ｂ）に従
って試験したところ下記の通りであった。This product was tested for fire resistance according to FAR25-853(b) and the results were as follows.
実施例２
分子量３０００．ＯＨ価５６の
ポリエーテルポリオール（ＭＮ３０５０に三井東圧社製
品） １００ 重量部縮合リン酸エステル（
ＵＰ５０４）
エキスパンダプルグラファイト ２５ 〃水
４．５−’
トリエチレンジアミン ０，１１１ジエタノ
ールアミン ０．２ 〃ジブチルチンジ
ラウレート ０．３ ／ｌシリコーン油
１．４１１リレンジイソシアネート
５９．０ 〃上記原料の中、ポリエーテルポリオー
ルに、縮合リン酸エステル及びエキスパンダプルグラフ
ァイトを十分混合撹拌した後、これに残りの配合原料を
混合して、ワンショット法に従って軟質ウレタンフオー
ムを製造した。この軟質ウレタンフオームは、密度０．
０３０ ｇ／ｃｍ３で均一な気泡を有していた。引張強
さは１．０ｋｇ／ｃｌＴ１２、永久歪み８％、反撥弾性
は４５％で、通常のポリリウレタンフォームと比較して
殆ど遜色かなかった。Example 2 Molecular weight 3000. Polyether polyol with an OH value of 56 (MN3050, manufactured by Mitsui Toatsu) 100 parts by weight Condensed phosphate ester (
UP504) Expander pull graphite 25 Water
4.5-'
Triethylenediamine 0,111 Diethanolamine 0.2 Dibutyltin dilaurate 0.3 /l Silicone oil
1.411 lylene diisocyanate
59.0 Among the above raw materials, polyether polyol, condensed phosphate ester and expandable graphite are sufficiently mixed and stirred, and then the remaining raw materials are mixed to produce a soft urethane foam according to the one-shot method. did. This soft urethane foam has a density of 0.
030 g/cm3 and had uniform bubbles. The tensile strength was 1.0 kg/clT12, the permanent set was 8%, and the rebound resilience was 45%, which was almost comparable to ordinary polyurethane foam.
（発明の効果）
本発明によれば以上の通り、膨脂性黒鉛と縮合リン酸エ
ステルを原料中に難燃化剤として添加したので、これが
加熱されると膨脂性黒鉛が加熱されて急速に膨張し、カ
サの大きな塊状となって防火壁を構成してこの部分で熱
の伝達を遮断することになる。あわせて、縮合リン酸エ
ステルがその燃焼を回避する役割を果たすことになる。(Effects of the Invention) According to the present invention, as described above, the swelling graphite and condensed phosphate ester are added to the raw materials as flame retardants, so when this is heated, the swelling graphite is heated and expands rapidly. However, it becomes a large lump of umbrella and forms a firewall, blocking the transfer of heat. At the same time, the condensed phosphoric acid ester plays a role in avoiding its combustion.
本願発明では、上記の膨脂性黒鉛の配合比はポリエーテ
ルポリオール１００重量部に対し１０〜５０重量部と比
較的少なく、大量添加によるフオーム体の物性低下が回
避できる上に、非常時の加熱時にはこの黒鉛のカサが大
きくなって熱の伝達をよく防ぐという双方に好ましい作
用を果たすものとなる。In the present invention, the blending ratio of the above-mentioned expandable graphite is relatively small at 10 to 50 parts by weight per 100 parts by weight of polyether polyol, and it is possible to avoid deterioration of the physical properties of the foam due to addition of a large amount. The bulk of this graphite becomes larger, which effectively prevents heat transfer, which has a favorable effect on both sides.
その結果、本発明によれば、フオーム体の反撥弾性など
の物性を損なうことなくポリリウレタンフォームの難燃
化を達成することが出来る。As a result, according to the present invention, it is possible to make polyurethane foam flame retardant without impairing the physical properties of the foam body, such as its rebound properties.
Claims (1)
酸エステル系難燃剤を８重量部以上と、膨脹性黒煙を１
０〜５０重量部と、有機イソシアネート、その他アミン
触媒、錫触媒、シリコーン油、さらに必要に応じて顔料
、その他の添加剤を添加、混合して発泡させることを特
徴とするポリリウレタンフォームの製造方法。For 100 parts by weight of polyether polyol, 8 parts by weight or more of condensed phosphate flame retardant and 1 part by weight of expanding black smoke.
0 to 50 parts by weight, an organic isocyanate, other amine catalysts, tin catalysts, silicone oil, and if necessary, pigments and other additives are added and mixed and foamed. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2340591A JPH04209616A (en) | 1990-11-30 | 1990-11-30 | Production of polyurethane foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2340591A JPH04209616A (en) | 1990-11-30 | 1990-11-30 | Production of polyurethane foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04209616A true JPH04209616A (en) | 1992-07-31 |
Family
ID=18338457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2340591A Pending JPH04209616A (en) | 1990-11-30 | 1990-11-30 | Production of polyurethane foam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04209616A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001025324A1 (en) * | 1999-10-07 | 2001-04-12 | Huntsman International Llc | Process for making rigid and flexible polyurethane foams containing a fire-retardant |
| JP2002144438A (en) * | 2000-11-16 | 2002-05-21 | Toyo Quality One Corp | Method for manufacturing fireproofing thermal expansion urethane sheet and fireproofing thermal expansion urethane sheet |
| KR100586612B1 (en) * | 2005-03-16 | 2006-06-07 | 주식회사 세림티티시 | Manufacture method of flexible polyurethane foams containing graphite |
| WO2006125258A1 (en) * | 2005-05-24 | 2006-11-30 | Pacific Brands Household Products Pty Ltd | Low resilience flame retardant polyurethane foam |
| US20220017772A1 (en) * | 2019-02-11 | 2022-01-20 | Dow Global Technologies Llc | Fire resistant polyurethane coating composition and a fire-resistant product comprising the same |
-
1990
- 1990-11-30 JP JP2340591A patent/JPH04209616A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001025324A1 (en) * | 1999-10-07 | 2001-04-12 | Huntsman International Llc | Process for making rigid and flexible polyurethane foams containing a fire-retardant |
| US6765035B2 (en) | 1999-10-07 | 2004-07-20 | Huntsman International Llc | Process for making rigid and flexible polyurethane foams containing a fire-retardant |
| JP2002144438A (en) * | 2000-11-16 | 2002-05-21 | Toyo Quality One Corp | Method for manufacturing fireproofing thermal expansion urethane sheet and fireproofing thermal expansion urethane sheet |
| KR100586612B1 (en) * | 2005-03-16 | 2006-06-07 | 주식회사 세림티티시 | Manufacture method of flexible polyurethane foams containing graphite |
| WO2006125258A1 (en) * | 2005-05-24 | 2006-11-30 | Pacific Brands Household Products Pty Ltd | Low resilience flame retardant polyurethane foam |
| US20220017772A1 (en) * | 2019-02-11 | 2022-01-20 | Dow Global Technologies Llc | Fire resistant polyurethane coating composition and a fire-resistant product comprising the same |
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