CN105829477A - Heat-Foamable Coating Agent And Method For Preparing Same - Google Patents

Heat-Foamable Coating Agent And Method For Preparing Same Download PDF

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Publication number
CN105829477A
CN105829477A CN201480067718.0A CN201480067718A CN105829477A CN 105829477 A CN105829477 A CN 105829477A CN 201480067718 A CN201480067718 A CN 201480067718A CN 105829477 A CN105829477 A CN 105829477A
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China
Prior art keywords
caramel
sucrose
thermally foamable
foamable coating
liquid
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Granted
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CN201480067718.0A
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Chinese (zh)
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CN105829477B (en
Inventor
赵南煜
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Korea Lnstitute Of Construction Technology
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Korea Lnstitute Of Construction Technology
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Priority claimed from KR20130153444A external-priority patent/KR101494801B1/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04Polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/046Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/18Layered products comprising a layer of metal comprising iron or steel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30Low-molecular-weight compounds
    • C08G18/38Low-molecular-weight compounds having heteroatoms other than oxygen
    • C08G18/3878Low-molecular-weight compounds having heteroatoms other than oxygen having phosphorus
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/033 layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/40Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/06Coating on the layer surface on metal layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/20Inorganic coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/26Polymeric coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00Composition of foam
    • B32B2266/02Organic
    • B32B2266/0214Materials belonging to B32B27/00
    • B32B2266/0221Vinyl resin
    • B32B2266/0228Aromatic vinyl resin, e.g. styrenic (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • B32B2307/3065Flame resistant or retardant, fire resistant or retardant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00Buildings or parts thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00Walls, panels
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2101/00Manufacture of cellular products
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2150/00Compositions for coatings
    • C08G2150/60Compositions for foaming; Foamed or intumescent coatings
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The present invention relates to a heat-foamable coating agent and a method for preparing the same, wherein the heat-foamable coating agent is prepared by mixing sucrose phosphate caramel or sucrose silica caramel with expanded graphite, and thus an adhesive is foamed by heat to form a foamed insulation layer in case of fire. The method for preparing the heat-foamable coating agent of the present invention comprises the steps of: mixing sucrose and phosphoric acid and inducing sucrose phosphorolysis, thereby forming sucrose phosphate caramel; mixing polyol with the sucrose phosphate caramel, expanded graphite, and a dispersant, followed by stirring; and mixing isocyanate with the mixture of sucrose phosphate caramel and expanded graphite.

Description

Thermally foamable coating agent and manufacture method thereof
Technical field
The present invention relates to a kind of thermally foamable coating agent, relate to a kind of thermally foamable coating agent and manufacture method thereof in more detail, described thermally foamable coating agent is fabricated by by mixing sucrose phosphate ester caramel (sucrosephosphatecaramel) or sucrose silicon dioxide caramel (sucrosesilicacaramel) in expansible graphite, thus by heat, binding agent is foamed during breaking out of fire, and then foam insulation can be formed.
Background technology
Sandwich plate (sandwichpanel) is used for building or the wall etc. of structure as construction material, the heat-barrier materials such as foamed polystyrene (styrofoam) are inserted between a pair steel plate, and by being fabricated by with binding agent bonding steel plate and heat-barrier material.
But the foamed polystyrene inserted between the steel plate of sandwich plate does not have fire resistance, therefore problematically, the situation etc. of building breaking out of fire, if sandwich plate exposes to flame, then is easy to all be burnt.In order to this is solved, make to improve with the following method the anti-flammability of foamed polystyrene heat-barrier material: in the method for the surface-coated fire retardant of foamed polystyrene heat-barrier material;When the surface-coated fire retardant of each expanded beads (grain) so that the method for foamed polystyrene foaming;The method etc. of fire retardant is injected to the inside of foamed polystyrene.
Additionally, existing sandwich plate is so that steel plate and heat-barrier material bond and use binding agent, and the anti-flammability of binding agent is the most weak, thus in the case of steel plate is exposed to fire, make due to heating power binding agent burn at once, thus have a problem in that the heat of fire is prone to be transferred to heat-barrier material.
In view of binding agent, the anti-flammability of sandwich plate is not had impact, ignore the anti-flammability of binding agent the most all the time, but according to the report display of actual experiment result, the anti-flammability degree according to binding agent is different, and it is different that the anti-flammability of sandwich plate has quite poor.In other words, it is commonly known that existing traditional binders polyurethane binder is the most fire-resistant, and once igniting is difficult to fire extinguishing, and human body can be had a negative impact by toxic gas and black flue gas.
From the point of view of the amount of the binding agent that the manufacture of sandwich plate is used has been carried out limiting by developed country for anti-flammability and the consideration of environmental protection aspect, truth is that to have the exploitation of fire repellence and the sandwich plate thermally foamable binding agent with toxic gas absorbent properties extremely urgent.
In order to solve described problem, Korean Patent Laid the 2009-0114898th discloses a kind of binding agent and utilizes its sandwich plate, described binding agent is mixing A liquid and the two-component adhesive that is fabricated by of B liquid, described A liquid includes isocyanates (isocyanate), B liquid includes polyhydric alcohol (polyol), and described binding agent includes foaminess inserts (filler) 5 to 35 weight portion relative to B liquid 100 weight portion.
Additionally, KR published patent the 2008-0001702nd discloses a kind of thermally foamable flame-resistant coated agent, described coating agent is foamed by heat, thus forms noninflammability carburization zone.The thermally foamable flame-resistant coated agent of described publication is to water dispersible latex (Latex), expansible graphite powder, tripolycyanamide (Melamine) based flame retardant, ammonium phosphate (AmmoniumPhosphate) based flame retardant, saccharide (saccharide) etc. carries out mixing and disperseing, described saccharide includes monosaccharide, disaccharides, more than one in polysaccharide, and described thermally foamable flame-resistant coated agent does not include halogen (halogen) based flame retardant, and as being prone to the material of solution estranged, the elasticity making latex is maintained, thus there is bending flexibility, and it is applied to more than 50 times of coating thickness during with flame contact, and do not produce environmentally harmful gas when burning.
Existing thermally foamable coating agent major part including two-component adhesive as above or thermally foamable flame-resistant coated agent commonly uses polyurethane foam, or mix expansible graphite and use, but simple being blended in when fire occurs forms thermal insulation layer due to graphite expansion, but have the disadvantage that, owing to low-gravity and the adhesion of expansible graphite lack and easily disperse, and therefore foaming layer is dispersed and cannot be formed lasting thermal insulation layer.
During additionally, simply expansible graphite is diluted in coating agent, although problematically, the foaming of expansible graphite can realize, but the inflammability of coating agent itself cannot be contained.
Summary of the invention
The present invention is to solve that existing problems described above propose, it is an object of the invention to provide a kind of thermally foamable coating agent and manufacture method thereof, described thermally foamable coating agent is while utilizing isocyanates and polyhydric alcohol, also expansible graphite and Sucrosephosphate caramel or sucrose silicon dioxide caramel are added, thus the heat produced during by fire and carry out automatic foaming, thus form thermal insulation layer, and do not disperse and can directly keep foamed shape, thus there is outstanding fire resistance, described isocyanates and polyhydric alcohol are as being similar to sandwich plate or fire resistant doorsets, the binding agent of the plate of fireproof wall or the filler of fire-resistant filling structure are used.
Thermally foamable coating agent according to the present invention for reaching described purpose is by mixing isocyanates and polyhydric alcohol, expansible graphite (ExpandableGraphite), Sucrosephosphate caramel (sucrosephosphatecaramel) or sucrose silicon dioxide caramel (sucrosesilicacaramel) and manufacture, thus foamed by heat, and then form thermal insulation layer.
Comprise the steps: to mix sucrose (Sucrose) and phosphoric acid (PhosphoricAcid) for manufacturing the method for the thermally foamable coating agent of the present invention, and carry out sucrose phosphate solution reaction, thus form Sucrosephosphate caramel;By described Sucrosephosphate caramel, expansible graphite, dispersant is in polyhydric alcohol, and is stirred;And isocyanates is mixed in described Sucrosephosphate caramel and the mixture of expansible graphite.
Comprise the steps: sucrose makes an addition to silica sol (colloidsilica) and dissolves for manufacturing another method of the thermally foamable coating agent of the present invention, thus manufacture sucrose silicon dioxide caramel;Described sucrose silicon dioxide caramel and expansible graphite and dispersant in polyhydric alcohol and are stirred;And isocyanates is mixed in described sucrose silicon dioxide caramel and the mixture of expansible graphite.
The thermally foamable coating agent utilizing expansible graphite and the reaction of sucrose phosphate solution according to the present invention has and will not disperse because of the flame pressure of fire or blast, and keeps the effect of foaming form.
In addition, it is possible to provide a kind of thermally foamable coating agent, it has the carbonized film that expansion ratio is high and solid such that it is able to block toxic gas, and fire resistance is outstanding.
Further, manufacture utilize the sandwich plate of thermally foamable coating agent time, it is possible to directly utilize existing equipment and the mode of production to manufacture sandwich plate, therefore, it is possible to prevent the rising of manufacturing expense.
Accompanying drawing explanation
Fig. 1 is axonometric chart and the amplification sectional view of the fire resistance sandwich plate using the thermally foamable coating agent according to the present invention.
Fig. 2 is the figure of the molecular formula representing sucrose.
Fig. 3 is the precedence diagram of the manufacture method that thermally foamable coating agent according to an embodiment of the invention is described.
Fig. 4 is the precedence diagram of the manufacture method that thermally foamable coating agent according to another embodiment of the invention is described.
Detailed description of the invention
Referring to the drawings, the embodiment of the fire resistance sandwich plate thermally foamable coating agent according to the present invention and the manufacture method of the sandwich plate utilizing it is described in detail.
The present invention can apply various change, can have various form, is illustrated in the accompanying drawings by specific embodiment and to being described in detail herein.But it is not intended that and limit the invention to specifically disclose form, and be interpreted as all changes, equipollent or even the sub comprising in the thought of the present invention and technical scope.While each accompanying drawing is described, it is used for being similarly comprised key element by similar reference numeral.The size of structure in the accompanying drawings, amplifies than reality to realize the definition of the present invention, or in order to contribute to understanding that simple composition reduces than actual.
With reference to Fig. 1, fire resistance sandwich plate 10 has the structure inserting the heartwood 12 as heat-barrier material between two steel plates 11, and described heartwood 12 is engaged in steel plate 11 tightly by being coated on the thermally foamable coating material 13 on the surface of steel plate 11.In described the present embodiment, the thermally foamable coating agent 13 of the present invention plays the effect of sticker.
Described thermally foamable coating agent 13 is characterised by, while utilizing isocyanates and polyhydric alcohol, also adds expansible graphite and Sucrosephosphate caramel or sucrose silicon dioxide caramel, so that fire resistance strengthening.More specifically, described thermally foamable coating agent 13 is as two-component adhesive, A liquid and B liquid are respectively coated with after building construction (being the steel plate of sandwich plate in the present embodiment) by described two-component adhesive according to a certain percentage, react and manufacture, A liquid is formed by isocyanates, and B liquid is fabricated by by interpolation expansible graphite and Sucrosephosphate caramel or sucrose silicon dioxide caramel in polyhydric alcohol.
The thermally foamable coating agent 13 carrying out described A liquid and B liquid mixing, stir and carry out to react and make has cohesive and thermal expansivity, and so that the expansible graphite foamed due to heat does not disperses, and form the charcoal (char of other cement, the soot of charcoal form), and while keeping lasting heat insulation and thermal resistance effect, the combustibility of containment medium (binding agent or equipment), medium also can become a part of charcoal (char).
Thermally foamable coating agent 13 has the characteristic adding expansible graphite and when contact heat, expansible graphite is foamed.Foaming layer caused by expansible graphite not by fire flame (flame) press or blast disperse and keeps foaming form in the case of can keep optimum efficiency.In order to keep described foaming form, it is necessary to prevent deformation, and to this end, utilize Sucrosephosphate caramel or the cement of sucrose silicon dioxide caramel in the present invention, it is thus achieved that prevent dispersing of expandable graphite, and contain the double effects of burning.
One embodiment of the method for the thermally foamable coating agent manufacturing the described present invention is carried out as described below.
First, in the present embodiment, to adding Sucrosephosphate caramel in order to utilize the reaction of sucrose phosphate solution and manufacturing the method for thermally foamable coating agent and illustrate.
Sucrose phosphate solution reaction to utilizing in the present invention is observed, sucrose generally corresponds to α-D-glucopyranosido-beta-D-fructofuranose glycosides (α-D-glucopyranosyl-β-D-fructofuranoside), is the non-reducing disaccharide class of performance sweet taste.The original materials containing in a large number in Caulis Sacchari sinensis and obtaining from Radix Betae are beet sugar, find in all plants have photosynthetic performance power.Utilize the sucrose generally produced in the present invention.
Fig. 2 is the figure of the molecular formula representing sucrose.
Sucrose is as common disaccharides, and molecular formula is C12H22O11, shown in following [chemical formula 1], sucrose is thermal decomposited.
Chemical formula 1
Release, by described chemical formula 1, the particularity that substantial amounts of moisture is sucrose decomposition, and advantage is, described sucrose environmental sound, and when filling, it is also easy to solution estranged, harmful gas will not be produced during burning.
Additionally, if sucrose diluted acid or β-D-Fructose glycosides enzyme (β-D-fructosidase (also referred to as saccharase (sucrase), invertase (invertase))) are hydrolyzed, then manufacture D glucose and the equal amount of mixture (specific rotatory power [α] D=-20 °) of D-Fructose, optical rotation from dextrorotation to left-handed reverse.This reaction is referred to as converting, and its mixed sugar is referred to as Nulomoline.Sucrose is also hydrolyzed to glucose or fructose by maltase (maltase) III or IV in intestinal mucosa cells.The antibacterial (Pseudomonas saccharophila (Pseudomonassaccharophila), leuconostoc mesenteroide (Leuconostocmesen-teroides) etc.) of certain kind has sucrose phosphate solution that sucrose decomposition is alpha-D-glucose-1-phosphoric acid and D-Fructose in the presence of phosphoric acid.It addition, have well-known from UDPG to D-Fructose or glycosyl (glycosylgroup) transfer reaction of D-Fructose-6-phosphoric acid as the enzyme reaction manufacturing sucrose.Although the former causes catalytic action by sucrose synthase (EC2.4.1.13), but as reversible reaction, the most on the contrary to decomposing direction, in other words to the supply of UDPG and the probability that acts on is bigger.On the contrary, the latter is responsible for Sucrose synthesis, and it is catalyzed by Sucrose Phosphate Synthase (SPS, EC2.4.1.14).Sucrose phosphate as product is received through the non-reversible dephosphorylation of phosphatase (phosphatase), thus becomes sucrose.
So-called phosphorolysis refers to add phosphoric acid in the molecule and carry out the reaction decomposed.The enzyme that described R1-R2+H3PO4R1-OPO3H2+R2H reaction carries out being catalyzed is generically and collectively referred to as phosphorylase, and glycogen (glycogen) phosphorylase is representational.Utilizing the phosphorolysis of sucrose in the present invention, phosphorylase is widely known by the people in industrial circle, does not the most do additionally explanation.
With reference to Fig. 3, the method that the phosphorolysis reaction utilized as above manufactures the thermally foamable coating agent according to the present invention is carried out following detailed description.
First, in as sucrose 100 weight portion of disaccharides, mix the phosphoric acid of 20 to 70 weight portions and carry out reacting (step S1).This, for utilizing described sucrose phosphate solution to react, as the product that it is final, forms auburn Sucrosephosphate caramel.Sucrosephosphate is the form of sucrose 6-phosphoric acid, and uses sucrose-phosphate synthase (Sucrose-PhosphateSynthase) as the enzyme being catalyzed described reaction.Sucrose 6-phosphoric acid as above product shows as, as noncrystalline, caramel (caramel) form that structure is not clear.When making described sucrose and phosphoric acid mix and react, also there is the situation that need to carry out maturation according to the catalyzing enzyme used.
Additionally, in order to keep the foaming form by following expansible graphite, it is necessary to preventing deformation, Sucrosephosphate caramel plays the effect preventing described deformation.In other words, Sucrosephosphate caramel, because cement is outstanding, prevents dispersing of expandable graphite so showing, and the double effects of suppression burning.
Additionally, in the present reaction, foam stabilizer or reaction promoter can also be added as other additives.
When manufacturing polyurethane (polyurethane) foam etc., foam stabilizer is in order to emulsification (being prone to the mixing of raw material), cell growth promote (to make air bubble growth, reduce the pressure differential between bubble to prevent from the diffusion of gas, prevention carbamate (urethane) cell from becoming big and inequality homogenizing), the composition that uniformly adds of the stabilisation of cell membrane problems such as () cytoclasis, unification and cell membrane that when prevention viscosity rises, bubble destabilization causes are thinning, product density.
Secondly, by being stirred while being diluted to described Sucrosephosphate caramel input expansible graphite and dispersant, thus B liquid (step S2) is completed.Now, contrasting the Sucrosephosphate caramel of 100 weight portions, diluted ammonia carbamate polyhydric alcohol 200 to 800 weight portion is also stirred.The nonionic surfactant being similar to ethylene oxide (ethyleneoxide) additive type surfactant can be used as described dispersant.
At this, for carbamate polyhydric alcohol, generally utilize and make following initiator (Initiator) and propylene oxide (PropyleneOxide, or ethylene oxide (EthyleneOxide PO), EO) material carrying out under proper condition reacting and obtain, described initiator is to have two or more hydroxyl (HydroxylGroup in the molecule,-OH) or multifunctional (Multifuntional) alcohol (alcohol) of amido (AmineGroup ,-NH2) or aromatic amine (amine) etc..Generally polyhydric alcohol is broadly dassified into polyether polyol (PolyetherPolyol) and PEPA (PolyesterPolyol), can properly select according to the purposes used and utilize in the present invention.
Here, expansible graphite (ExpandableGraphite) refers to carry out natural flake graphite chemical treatment, thus form the material of compound between graphite layers.If described compound is heated, then expanding together with chemical composition, thus form a kind of film, if the foamed polystyrene containing expanded graphite or carbamate etc. are heated, i.e. breaking out of fire, then this expanded film plays the effect of protecting film, thus causes flame retardant effect.Foaming layer containing expansible graphite will not be dispersed because of flame pressure or blast and be to maintain foaming form.Expansible graphite is again soft graphite, is used widely in industrial circle, therefore in this detailed.
Additionally, the solution that four water eight sodium borate (sodiumoctaboratetetrahydrate) of silicate (metasilicate) the hybrid solid shape at colloidal (colloid) are generated is added on described second step (step S2), thus strengthens anti-flammability.When described eight sodium borate (sodiumoctaborate) solution is mixed with adhesive composition or combusting component, play containment flammability equipment burning and the effect helping charcoal (char) to be formed.
When eight dobell's solutions are formed, contrast eight sodium borate 100 weight portions, silicate (metasilicate) 10 to 40 weight portion of colloid mixture shape.When being mixed with Sucrosephosphate caramel by eight dobell's solutions so generated, contrast Sucrosephosphate caramel 100 weight portion, put into sodium silicate (SodiumSilicate) solution 10 to 50 weight portion.
Now, in order to keep the viscosity of B liquid, petroleum jelly (petrolanium) or vaseline (Vaseline) can be added.
3rd, after B liquid and A liquid are sprayed on steel plate, utilize mixing (mixing) plate mix and react, the most to a certain degree expand and generate thermally foamable coating agent (step S3).Described B liquid is fabricated by by described Sucrosephosphate caramel and carbamate polyol blends, and isocyanates is used as main component by described A liquid.In the present embodiment '-diphenylmethane diisocyanate (MDI, MethyleneDiphenylDiisocyanate) is used as isocyanates (Isocyanate).
Here, '-diphenylmethane diisocyanate (MDI, MethyleneDiphenylDiisocyanate) is aromatic diisocyanate (Diisocyanate) class chemical substance.'-diphenylmethane diisocyanate is broadly divided into MDI monomer and polymerization (Polymeric) MDI, MDI monomer is by 2,2 '-MDI, 2,4 '-MDI, 4, three kinds of isomerss of 4 '-MDI are constituted, in the present invention, select any one in three kinds of isomerss or its mixture according to its purposes and utilize.
Through as above process, if being coated with thermally foamable coating agent 13 on steel plate 11, placing heartwood 12 the most thereon and pressurizeing, so that its attachment, thus manufacturing sandwich plate.
As it has been described above, the A liquid and B liquid that constitute thermally foamable coating agent 13 are coated between the steel plate 11 of sandwich plate and heartwood 12 and adhere to (step S4) by the present invention, and described end product forms fire proofing or nonflammable material.Now, the technique manufacturing sandwich plate is identical with existing coating and adhesive bonding method, and thus workability is outstanding, and can regulate coated weight according to fire resistance.Result of the test according to the applicant can confirm that 200 to 1000g/m2Degree is the best.
Additionally, in the foregoing embodiments, when manufacturing the B liquid of thermally foamable coating agent of double-component, with the addition of Sucrosephosphate caramel together with polyhydric alcohol and expansible graphite, but add sucrose silicon dioxide caramel and also can manufacture the B liquid of thermally foamable coating agent as follows.
With reference to Fig. 4, contrast silica sol (colloidsilica) 100 weight portion, add sucrose 50 to 80 weight portion, thus dissolve, thus manufacture sucrose silicon dioxide caramel (step S11).
Further, polyhydric alcohol 100 weight portion of contrast molecular weight 1000g/mol to 3000g/mol, put into sucrose silicon dioxide caramel 15 to 30 weight portion and expansible graphite 20 to 50 weight portion, thus be stirred (step S12).
It follows that put into surfactant, solvent, fire retardant, catalyst and auxiliary agent to the product generated by described step S12, and it is stirred, thus forms B liquid (step S13).Now, when described sucrose silicon dioxide caramel and expansible graphite mixing, can add and four water eight sodium borate of solid, shaped are mixed eight dobell's solutions generated to the silicate of colloidal.Preferably, when described eight dobell's solutions are formed, eight sodium borate 100 weight portions are contrasted, silicate 10 to 40 weight portion of colloid mixture shape.
Additionally, in the step manufacturing described B liquid, in order to keep the viscosity of B liquid, it is possible to add more than any one in petroleum jelly or vaseline further.
On actual process line, as above manufactured B liquid and the A liquid formed by isocyanates are sprayed to steel plate, and be stirred by mixed plate, thus start urethane reaction, and carry out expanding (step S14), now, utilize the binding agent that formed in the method manufacturing sandwich plate, although identical with existing coating agent adhesive bonding method, but in order to manufacture fire-retardant even difficult combustion plate, need the coated weight of 200 to 1000g/ according to fire resistance.
Using mixing B liquid and the thermally foamable coating agent 13 of A liquid, the density of foamed polystyrene (EPS, ExpandedPolystyrene) heat-barrier material is 8.9/m3Steel plate is zinc-plated for 0.4mm, manufacture sandwich plate test body, thus perform taper calorimetric (cone-calori) experiment, result is that gross calorific power shows 5.1MJ/ and 5.2MJ/, well below reference value 8MJ/ allowed during fire, described B liquid is fabricated by (mixing of sucrose silicon dioxide caramel) by manufacture method as above, and described A liquid contains isocyanates.
As mentioned above, the thermally foamable coating agent of the present invention is when being applicable to the building construction being similar to sandwich plate, foamed by heat during fire, thus play suppression flame and produce and the effect of thermal resistance, and owing to adding the Sucrosephosphate caramel to the B liquid of thermally foamable coating agent 13 or the outstanding cement of sucrose silicon dioxide caramel, can obtain and prevent expandable graphite from dispersing, and suppress the double effects of degree of combustion.
The thermally foamable coating agent of previous embodiment makes A liquid and B liquid be respectively coated with after building construction (steel plate of sandwich plate), it is stirred and reacts, thus manufacture thermally foamable coating agent, described A liquid contains isocyanates, and described B liquid contains polyhydric alcohol, expansible graphite (ExpandableGraphite), Sucrosephosphate caramel or sucrose silicon dioxide caramel.
But, unlike this, liquid containing isocyanates is directly mixed in the mixed liquor being mixed with polyhydric alcohol, expansible graphite (ExpandableGraphite), Sucrosephosphate caramel or sucrose silicon dioxide caramel, thus manufacture foaminess coating agent, building construction can be coated on afterwards.
In addition, for the thermally foamable coating agent of previous embodiment, the heartwood of sandwich plate is attached to steel plate, and use as forming the thermally foamable jointing material of foam insulation when fire, but additionally, it also is used as binding agent or resistance flame, thermal barrier coating (coating) material etc. of Nidus Vespae (honeycomb) reinforcement material of fire resistant doorsets.Meanwhile the thermally foamable binding agent of the present invention is filled up between apartment or the pipeline of building and ground or pipeline and wall such that it is able to for preventing the foaminess filler etc. of the fire-resistant filling structure etc. of flame or harmful gas infiltration.
Although as above preferred embodiments of the present invention have been disclosed for illustrative, but the present invention can use various change, change and equipollent.It is clear that the present invention can carry out suitable deformation to described embodiment and carry out identical application.Therefore the scope of the present invention is not limited by the content of described record, and is affected by the restriction of following patent requirements scope.
Probability is utilized in industry
Present invention can be suitably applied to fire-resistant filling tectosome etc., described fire-resistant filling tectosome prevents the harmful gas between sandwich plate, fire wall, fire resistant doorsets, building slab, pipeline and ground or pipeline and wall and flame infiltration.

Claims (20)

1. a thermally foamable coating agent, it is characterised in that
Isocyanates and polyhydric alcohol, expansible graphite (ExpandableGraphite), Sucrosephosphate caramel or sucrose silicon dioxide caramel are mixed and manufacture, thus is foamed by heat, and then form thermal insulation layer.
2. the manufacture method of a thermally foamable coating agent according to claim 1, it is characterised in that comprise the steps:
Sucrose (Sucrose) and phosphoric acid (PhosphoricAcid) are mixed, and carries out sucrose phosphate solution reaction, thus form Sucrosephosphate caramel;
By described Sucrosephosphate caramel, expansible graphite, dispersant is in polyhydric alcohol, and is stirred;And
Isocyanates is mixed in described Sucrosephosphate caramel and the mixture of expansible graphite.
The manufacture method of thermally foamable coating agent the most according to claim 2, it is characterised in that
Mixture (B liquid) is respectively coated with liquid (A liquid) and mixes after building construction, so that B liquid reacts with A liquid, thus manufacture thermally foamable coating agent, described mixture (B liquid) manufactures by Sucrosephosphate caramel and expansible graphite are mixed in described polyhydric alcohol, and described liquid (A liquid) contains isocyanates.
The manufacture method of thermally foamable coating agent the most according to claim 2, it is characterised in that
Foam stabilizer and sucrose-phosphate synthase (Sucrose-PhosphateSynthase) is added when described Sucrosephosphate caramel is formed.
The manufacture method of thermally foamable coating agent the most according to claim 2, it is characterised in that
When described Sucrosephosphate caramel is formed, contrast described sucrose 100 weight portion, mixed phosphate 20 to 70 weight portion.
The manufacture method of thermally foamable coating agent the most according to claim 2, it is characterised in that
Contrast Sucrosephosphate caramel 100 weight portion, mixed amino formic acid esters polyhydric alcohol 200 to 800 weight portion.
The manufacture method of thermally foamable coating agent the most according to claim 6, it is characterised in that
Described carbamate polyhydric alcohol be any one in polyether polyol (PolyeherPolyol) or PEPA (PolyesterPolyol) more than.
The manufacture method of thermally foamable coating agent the most according to claim 2, it is characterised in that
Described isocyanates is '-diphenylmethane diisocyanate (MDI, MethyleneDiphenylDiisocyanate).
The manufacture method of thermally foamable coating agent the most according to claim 8, it is characterised in that
Described '-diphenylmethane diisocyanate is any one in MDI monomer or polymeric MDI, and described MDI monomer is 2,2 '-MDI, 2,4 '-MDI or 4, in 4 '-MDI more than any one.
The manufacture method of thermally foamable coating agent the most according to claim 2, it is characterised in that
Sucrosephosphate caramel and expansible graphite are being mixed in the step of described polyhydric alcohol, when described Sucrosephosphate caramel mixes with expansible graphite, add by four water eight sodium borate of solid, shaped are mixed in eight dobell's solutions that the silicate of colloidal is generated.
The manufacture method of 11. thermally foamable coating agents according to claim 10, it is characterised in that
When eight dobell's solutions are formed, contrast eight sodium borate 100 weight portions, silicate 10 to 40 weight portion of colloid mixture shape
The manufacture method of 12. thermally foamable coating agents according to claim 11, it is characterised in that
When being mixed with Sucrosephosphate caramel by described eight dobell's solutions, contrast Sucrosephosphate caramel 100 weight portion, mixing sodium silicate solution 10 to 50 weight portion.
The manufacture method of 13. thermally foamable coating agents according to claim 2, it is characterised in that
Sucrosephosphate caramel and expansible graphite are being mixed in the step of described polyhydric alcohol, in order to keep viscosity, are adding more than any one in petroleum jelly or vaseline further.
The manufacture method of 14. 1 kinds of thermally foamable coating agents according to claim 1, it is characterised in that comprise the steps:
Sucrose made an addition to silica sol and dissolves, thus manufacturing sucrose silicon dioxide caramel;
Described sucrose silicon dioxide caramel and expansible graphite and dispersant in polyhydric alcohol and are stirred;And
Isocyanates is mixed in described sucrose silicon dioxide caramel and the mixture of expansible graphite.
The manufacture method of 15. thermally foamable coating agents according to claim 14, it is characterised in that
Mixture (B liquid) and liquid (A liquid) are respectively coated with after building construction, mix, so that B liquid and A liquid react, thus manufacture thermally foamable coating agent, described mixture (B liquid) is to be fabricated by by sucrose silicon dioxide caramel and expansible graphite are mixed in described polyhydric alcohol, and described liquid (A liquid) contains isocyanates.
The manufacture method of 16. thermally foamable coating agents according to claim 14, it is characterised in that
In the step manufacturing described sucrose silicon dioxide caramel, contrast silica sol 100 weight portion, add sucrose 50 to 80 weight portion and dissolve.
The manufacture method of 17. thermally foamable coating agents according to claim 14, it is characterised in that
Sucrose silicon dioxide caramel and expansible graphite are being mixed in the step of described polyhydric alcohol, polyhydric alcohol 100 weight portion of contrast molecular weight 1000g/mol to 3000g/mol, put into sucrose silicon dioxide caramel 15 to 30 weight portion and expansible graphite 20 to 50 weight portion, thus be stirred.
The manufacture method of 18. thermally foamable coating agents according to claim 14, it is characterised in that
Sucrose silicon dioxide caramel and expansible graphite are mixed in the step of described polyhydric alcohol, when mixing described sucrose silicon dioxide caramel and expansible graphite, add by four water eight sodium borate of solid, shaped are mixed eight dobell's solutions generated to the silicate of colloidal.
The manufacture method of 19. thermally foamable coating agents according to claim 18, it is characterised in that
When described eight dobell's solutions are formed, contrast eight sodium borate 100 weight portions, silicate 10 to 40 weight portion of colloid mixture shape.
The manufacture method of 20. thermally foamable coating agents according to claim 14, it is characterised in that
Sucrose silicon dioxide caramel and expansible graphite are being mixed in the step of described polyhydric alcohol, in order to keep viscosity, are adding more than any one in petroleum jelly or vaseline further.
CN201480067718.0A 2013-12-10 2014-05-14 Thermally foamable coating agent and its manufacture method Expired - Fee Related CN105829477B (en)

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