KR20080001702A - Antiflaming coating composition with heat-forming char - Google Patents

Antiflaming coating composition with heat-forming char Download PDF

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KR20080001702A
KR20080001702A KR1020070130605A KR20070130605A KR20080001702A KR 20080001702 A KR20080001702 A KR 20080001702A KR 1020070130605 A KR1020070130605 A KR 1020070130605A KR 20070130605 A KR20070130605 A KR 20070130605A KR 20080001702 A KR20080001702 A KR 20080001702A
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phosphate
foaming
flame
heat
carbonized layer
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KR1020070130605A
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Korean (ko)
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오재성
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오재성
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C09D5/185—Intumescent paints
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0036—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using foam
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/06—Organic materials
    • C09K21/12—Organic materials containing phosphorus

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Paints Or Removers (AREA)

Abstract

A heat foamable flame resistant coating composition is provided to form a dry coating film having elasticity and flexibility, and to realize a heat insulation effect by forming non-inflammable porous carbonized layer upon foaming. A heat foamable flame resistant coating composition forms a porous non-inflammable carbonized layer upon foaming at a temperature of 150 deg.C or higher. The heat foamable flame resistant coating composition uses at least one ingredient selected from the group consisting of glucose, fructose, galactose, disaccharides including sugar, maltose and lactose, and polysaccharides including cellulose and starch, in combination with at least one phosphate-based flame retardant including monoammonium phosphate, diammonium phosphate, ammonium polyphosphate or melamine phosphate.

Description

열발포성 방염조성물 {Antiflaming Coating Composition With Heat-forming Char}Heat-foaming flame retardant composition {Antiflaming Coating Composition With Heat-forming Char}

본 발명은 화재에 대비하기 위한 방법의 일환으로 화학적으로 지속적인 연소반응을 차단하기 위한 방염방법에 관한 것이다.The present invention relates to a flame retardant method for blocking a chemically sustained combustion reaction as part of a method for preparing for a fire.

상세하게는 탄화층을 용이하게 형성하는 물질과 탄화층에 피막을 형성하여 산소와의 반응을 차단하는 피막형성물질을 활용하여 불연성 탄화층을 만들어 방염대상물질을 화염으로부터 단열하고자 하는 것이 본 발명의 이루고자 하는 기술분야이다.In detail, it is desirable to insulate the flame retardant material from the flame by making a non-flammable carbonized layer by using a material that easily forms a carbonized layer and a film forming material that blocks the reaction with oxygen by forming a film on the carbonized layer. It is a technical field to achieve.

본 발명의 상세한 기술분야는 열발포성 도포제에 관한 것으로 기존의 열발포성 도료나 도포제의 견고하고 고착된 표면보다는 유기계, 특히 고무와 당류를 이용하여 보다 유연한 피막을 이용하여 천이나 펠트 또는 로프 등 유연성을 요하는 부분의 방염에 활용할 수 있는 유기계 방염제에 관한 것이다. The technical field of the present invention relates to a thermally foamable coating agent, and is more flexible, such as cloth, felt, or rope, by using a more flexible coating using an organic type, in particular, rubber and sugar, rather than a firm and fixed surface of a conventional thermally foamable paint or coating agent. The present invention relates to an organic flame retardant which can be utilized for flame retardation of a required part.

상세하게는 열에 의해 발포하여 다공성 탄화층을 형성하도록 하기 위하여 가스를 많이 방출하는 유기화합물과 불연탄화층을 형성하는 난연제를 혼합하고, 발포를 보조할 목적으로 발포성흑연을 첨가한 도포제는 열과 접촉시 200℃부근에서 흑연의 발포와 더불어 유기물로부터는 수분이나 암모니아 등의 가스를 방출하면서 탄화하고 탄화층은 난연제의 효과에 의해 불연성 탄화층으로 변하게 된다.Specifically, in order to form a porous carbonized layer by foaming by heat, an organic compound that emits a lot of gas and a flame retardant forming a nonflammable carbonized layer are mixed, and a coating agent added with expandable graphite for the purpose of assisting foaming is in contact with heat. In addition to the foaming of graphite in the vicinity of 200 ℃ carbonization while releasing moisture or ammonia gas from the organic material, the carbonized layer is changed to a non-combustible carbonized layer by the effect of the flame retardant.

가스가 빠져나가면서 형성한 다공성의 불연탄화층은 방염대상물의 표면에 불연 단열효과를 제공하게 된다.Porous incombustible carbonization layer formed as the gas escapes to provide a non-combustible insulation effect on the surface of the flameproof object.

이러한 효과를 위한 도포제의 배경기술로는 a) 발포성 흑연의 활용기술, b) 수용성 고무배합기술, c) 유기물의 탄화기술, d) 난연제 활용기술 등이 요구된다. Background art of the coating agent for this effect requires a) utilization technology of expandable graphite, b) water-soluble rubber compounding technology, c) carbonization of organic materials, d) technology of using flame retardant.

본 발명은 당류(설탕)이 연소 시 다량의 수분을 증발하며 기포성 탄화층(Char)을 형성하는 특성과 발포성 흑연의 발포 탄화층을 활용하고, 탄화층의 연소를 막기 위하여 난연제를 배합하고, 도포제로서 유연한 표면과 접착성을 위하여 수분산성 고무를 바인더로 사용하여 제조하는 열발포성 방염 도포제에 관한 것이다. The present invention utilizes the property that evaporates a large amount of water when sugar (sugar) is burned and forms a foamable carbonized layer (Char) and a foamed carbonized layer of expandable graphite, mixes a flame retardant to prevent combustion of the carbonized layer, and a coating agent It relates to a heat-foaming flame-retardant coating agent prepared by using a water-dispersible rubber as a binder for a flexible surface and adhesion.

본 발명이 이루고자 하는 가장 첫 번째 기술적 과제는 생분해가 용이한 방염제를 이루는 것이다. The first technical problem to be achieved by the present invention is to achieve a biodegradable flame retardant.

그 이유로는 일반적으로 방염제를 도포하거나 방염제가 도포된 소재를 사용 후 몇 개월 내지는 몇 년 후 건물의 개조나 시설의 교체로 인해 방염제는 철거되고 새것을 사용하게 된다. 이 때 방염처리된 소재가 화재에 의해 방염목적을 이루고 소각되어지는 경우는 극히 드물고, 방염소재로 시판된 대부분의 방염소재는 매립되어진다. 따라서 방염소재는 자연상태에서 생분해가 용이해야하는 사유가 그것이다.For this reason, flame retardants are generally removed and new ones are used due to the renovation of buildings or replacement of facilities after several months or years after application of flame retardant or flame retardant material. At this time, it is extremely rare for the flame-retardant material to be incinerated and incinerated by fire, and most of the flame-retardant materials marketed as flame-retardant materials are buried. Therefore, the flame retardant material is a reason that should be easy to biodegrade in nature.

본 발명은 이러한 환경 친화의 목적을 두고 독성이 없고 생분해가 용이한 원료를 사용하여 매립시 자연 생태계에 피해가 없는 도포제를 조성코자 한다.The present invention aims to form a coating agent that does not harm natural ecosystems when being buried using raw materials that are nontoxic and biodegradable for the purpose of environmental friendliness.

두 번째 방염제가 발포과정에서 열에 의해 분해 시 유해한 가스를 방출하지 않아야 하는 과제를 갖는다. 세 번째는 가능한 20배 이상 충분히 발포하여 화염으로부터 방어할 수 있는 최대한의 단열 탄화층을 형성하는 것이 방염제로서의 기본적인 성능이다. 허나 발포가 많을수록 탄화층의 겉보기 밀도는 작아지고 기류의 움직이는 동압에 의해 탄화층이 날려 방염대상으로부터 이탈되므로 방염성능을 상실할 수 있 다. 따라서 충분히 발포는 이루되 탄화층을 날리지 못하도록 탄화층을 점성화, 또는 견고하게 해야 원하는 단열효과를 얻을 수 있다.The second flame retardant has the task of not releasing harmful gases when decomposed by heat in the foaming process. Third, the basic performance as a flame retardant is to foam as much as 20 times as much as possible to form the maximum insulating carbide layer that can protect from the flame. However, the more foaming, the smaller the apparent density of the carbonized layer and the flame retardant performance can be lost since the carbonized layer is blown off by the moving pressure of the airflow and is released from the flameproof object. Therefore, sufficient foaming is achieved, but the carbonization layer is hardened or hardened so as not to blow the carbonization layer to obtain a desired heat insulation effect.

본 발명이 이루고자 하는 기술적과제는 a) 환경친화를 위한 생분해성, b) 발포가스의 무독성, c) 단열효과 상승을 위한 발포층의 유지성, 세 가지로 압축되며 첫째, 환경 친화를 위한 생분해성을 향상하기 위하여 발포기제를 자연에서 쉽게 얻어지는 당류로 하고 바인더를 수분산성성 천연고무나 그 외 생분해성이 우수한 수분산성 고무로 함으로서 해결할 수 있다.The technical problem to be achieved by the present invention is a) biodegradability for environmental friendliness, b) non-toxicity of the foaming gas, c) retention of the foam layer to increase the thermal insulation effect, the first is to compress the biodegradability for environmental friendliness In order to improve, it is possible to solve the problem by using a foaming base as a sugar obtained easily in nature and a binder as a water dispersible natural rubber or other water dispersible rubber having excellent biodegradability.

둘째, 발포가스의 무독성에 대한 과제는 주원료로서 당류를 사용하는 방법이다게 되었다. 상세하게는 맥아당, 올리고당, 젖당, 설탕 등 당(saccharide)을 이용하는 방법이다.Second, the problem of non-toxicity of foaming gas has become the method of using sugar as main raw material. Specifically, maltose, oligosaccharides, lactose, sugar, and the like (saccharide) is a method of using a saccharide (saccharide).

일 예로 설탕은 이당류로서 분자식이 C12H22O11 이며, 열에 의해 분해 시 For example, sugar is a disaccharide and has a molecular formula of C 12 H 22 O 11 .

C12H22O11 → 11H2O↑ + 12CC 12 H 22 O 11 → 11H2O ↑ + 12C

상기 식에 의해 다량의 수분을 방출하면서 분해하여 다공성 탄화층을 형성하는 특징을 갖는 물질로 대부분의 당류가 이러한 메카니즘에 의해 탄화층을 형성한다.By the above formula, a large amount of saccharide forms a carbonized layer by such a mechanism, which is characterized by decomposing while releasing a large amount of water to form a porous carbonized layer.

이러한 설탕은 환경적으로 유해하지 않으며, 매립시에도 생분해가 용이하며, 연소시에도 전혀 유해한 가스를 방출하지 않는다. These sugars are not environmentally harmful, are easy to biodegrade upon landfill, and do not emit any harmful gases upon combustion.

셋째, 단열성의 유지를 위한 충분한 발포층의 유지를 위하여 수분이 증발하면서 기공성 탄화층을 형성하는 당류(설탕 등)와 암모늄 포스페이트를 사용하고 또한 발포 성흑연과 혼합사용함으로서 충분한 발포층을 형성하고, 설탕의 점성과 바인더의 점성으로 발생한 탄소가 화염이나 바람에 의해 날려가지 않도록 붙잡아주는 효과를 얻을 수 있다.Third, in order to maintain a sufficient foam layer for maintaining heat insulation, a sufficient foam layer is formed by using sugars (such as sugar) and ammonium phosphate which form a porous carbonized layer while evaporating moisture, and also mixed with foamed graphite. In addition, the carbon generated by the viscosity of the sugar and the viscosity of the binder can be obtained to hold the effect not to be blown by the flame or wind.

본 발명은 이러한 당을 기제로 하여 수분산성고무(Latex)를 바인더로 하고 발포성흑연과 탄소의 불연화를 위한 첨가제로 포스페이트계와 멜라민계 난연제를 첨가하여 배합한 열발포성 방염도포제로, 본 발명에 의한 도포제는 고무바인더에 의해 탄성과 유연성이 있는 건조표면을 제공하고, 발포성흑연과 설탕 분해물에 의한 탄소에 의해 50 내지 100배의 부피로 팽창하면서 불연의 다공성 탄화층을 형성하여 단열하는 효과를 제공한다.The present invention is a heat-foaming flame-retardant coating agent formulated by adding a phosphate-based and melamine-based flame retardant as an additive for water-dispersible rubber (Latex) as a binder and the non-flammable graphite and carbon in the present invention, The coating agent provides a dry surface with elasticity and flexibility by a rubber binder, and expands to a volume of 50 to 100 times by carbon due to expanded graphite and sugar decomposition products, and provides an effect of forming and insulating a non-combustible porous carbonized layer. do.

본 발명에 의한 도포제는 방염이 요구되는 목재, 전선다발, 벽면 등에 직접 도포할 수도 있고 또는 천이나 펠트에 도포하여 사용할 수 있도록 하기 위하여 수분산성고무를 바인더로 사용한 것으로, 도포면이 화염이나 고열과 접촉 시 약 200℃ 부근에서 당류로부터의 수분발생과 발포성흑연의 팽창으로 인해 발포하여 다공성의 불연성 탄화층을 형성함으로서 단열효과로 방염대상물질이 연소하거나 화염이 전이되는 것을 차단하는 기능을 제공한다.        The coating agent according to the present invention may be applied directly to wood, wire bundles, wall surfaces, etc., which require flame retardancy, or water-dispersible rubber is used as a binder to be applied to a cloth or felt, and the coated surface is in contact with flame or high heat. It forms a porous non-flammable carbonized layer by foaming due to water generation from sugars and expansion of expandable graphite in the vicinity of about 200 ° C, thereby providing a function of blocking the flame-proofing material from being burned or the flame transition by the thermal insulation effect.

또한 본 발명에 의한 도포제는 주성분이 수분산성고무와 당류와 흑연이기 때문에 매립시 자연분해가 용이하고, 화염과 접촉하여 분해 시 유해가스를 방출하지 않으며, 악취도 없는 친환경도포제로 유용할 것으로 판단된다.In addition, the coating agent according to the present invention is a water dispersible rubber, sugar and graphite, the main component is easy to decompose naturally when buried, it does not emit harmful gas when decomposed in contact with the flame, it is considered to be useful as an environmentally friendly coating agent without odor. .

본 발명의 구성은 당을 기제로 하여 수분산성고무를 바인더로 하고 흑연발포제와 탄소의 불연화를 위한 첨가제로 포스페이트계와 멜라민계 난연제를 첨가하여 배합한 열발포성 방염도포제로, 단당류나 이당류를 10 내지 50 중량%, 전분 0 내지 20중량%, 수분산성고무 20 내지 50중량%, 발포성흑연 10 내지 30중량%, 포스페이트계 난연제 1 내지 20중량%, 멜라민계 난연제 0내지 10중량%를 사용용도에 따라 선택적으로 배합하여 구성한다.The composition of the present invention is a heat-foaming flame-retardant coating agent which is added by adding a phosphate-based and melamine-based flame-retardant as an additive for water-dispersible rubber as a binder and a graphite foaming agent and carbon incombustibility, 10 monosaccharides or disaccharides To 50% by weight, starch 0 to 20% by weight, water dispersible rubber 20 to 50% by weight, expandable graphite 10 to 30% by weight, phosphate flame retardant 1 to 20% by weight, melamine-based flame retardant 0 to 10% by weight for use According to the composition optionally.

일 예로 습기가 적고 접촉이 적은 장소에 사용할 경우 단당류나 이당류의 함량을 50 중량%까지 증량할 수 있으며, 습기가 많은 공동구나 외부 폭로시 또는 유연성을 요하는 경우 수분산성고무의 함량을 증량하는 것이 유리하며, 유연성이 많이 요구되지 않는다면 단당류나 이당류를 다당류인 전분과 혼합하여 사용하는 것도 바람직 하다. For example, when used in places with low moisture and low contact, the content of monosaccharides or disaccharides can be increased to 50% by weight, and the content of water-dispersible rubbers when exposing moisture or when exposing externally or requiring flexibility can be increased. It is advantageous to use monosaccharides or disaccharides in combination with starch which is a polysaccharide, unless much flexibility is required.

도 1 : 본 발명에 의한 도포제 1: Coating agent according to the present invention

도 2 : 도포제를 바른 천과 부직포Fig. 2: Cloth and nonwoven cloth with coating

도 3 : 도포두께 0.5mm에서 25mm 두께로 발포하는 모양3: Shape of foaming with a coating thickness of 0.5mm to 25mm thickness

Claims (5)

150℃이상의 온도에서 발포하여 다공성의 불연성 탄화층을 형성하는 열발포성 방염도포제를 제조할 목적으로, 단당류인 포도당, 과당, 갈락토오스, 이당류인 설탕, 맥아당, 젖당과 다당류인 셀루로우스, 전분 중에서 1종류 이상을 모노암모늄포스페이트, 디암모늄포스페이트, 암모늄폴리포스페이트, 멜라민포스페이트 등의 포스페이트난연제 1종류 이상과 혼합하여 사용하는 방법For the purpose of preparing a heat-foaming flame-retardant coating agent that forms a porous non-flammable carbonized layer by foaming at a temperature of more than 150 ℃, 1 of sugar, maltose, lactose and polysaccharide cellulose, starch, which are monosaccharides, glucose, fructose, galactose, and disaccharides. Method of mixing more than one kind with one or more kinds of phosphate flame retardants such as monoammonium phosphate, diammonium phosphate, ammonium polyphosphate, melamine phosphate 150℃이상의 온도에서 발포하여 다공성의 불연성 탄화층을 형성하는 열발포성 방염도포제를 제조할 목적으로 수분산성고무(Latex)에 설탕과 발포성흑연(일명: 팽창흑연)을 분산, 용해하여 사용하는 방법.    A method of dispersing and dissolving sugar and effervescent graphite (aka expanded graphite) in a water-dispersible rubber (Latex) for the purpose of manufacturing a heat-foaming flame-retardant coating agent to form a porous non-flammable carbonized layer by foaming at a temperature of 150 ℃ or more. 150℃이상의 온도에서 발포하여 다공성의 불연성 탄화층을 형성하는 열발포성 방염도포제를 제조할 목적으로 전분을 호화하여 인산이나 인산염(포스페이트)과 반응하여 변성화한 전분이나 아세틸인산이전분(Acetylated Distarch Phosphate), 인산이전분(Distarch Phosphate), 인산일전분(Monostarch Phosphate), 인산화인산이전분(Phosphated Distarch Phosphate), 히드록시프로필인산이전분(Hydroxypropyl Distarch Phosphate) 등의 변성전분 중 1가지 이상 포함한 열발포성 방염도포제.     Starch or acetylphosphorylated starch (Acetylated Distarch Phosphate) which was denatured by reacting with phosphate or phosphate (phosphate) by gelatinizing starch for the purpose of manufacturing thermally foamable flame-retardant coating foamed at a temperature above 150 ℃ to form a porous incombustible carbonized layer. ), Thermally foamable starch including at least one of modified starches such as Distarch Phosphate, Monophosphorous Phosphate, Phosphated Distarch Phosphate, and Hydroxypropyl Distarch Phosphate. Flame retardant. 150℃이상의 온도에서 발포하여 다공성의 불연성 탄화층을 형성하는 열발포성 방염도포제에서 a) 수분산성고무(Latex) 20 내지 50 중량%, b) 10㎛이하 크기의 발포성흑연분말 5 내지 30중량%, c) 모노암모늄포스페이트, 디암모늄포스페이트, 암모늄폴리포스페이트, 멜라민포스페이트 중 1가지 이상을        A) 20 to 50% by weight of water dispersible rubber (Latex), 5) to 30% by weight of expandable graphite powder having a size of 10 μm or less in a thermally expandable flame retardant coating agent that foams at a temperature of 150 ° C. or higher to form a porous nonflammable carbonized layer, c) at least one of monoammonium phosphate, diammonium phosphate, ammonium polyphosphate, melamine phosphate 1 내지 20 중량%를 배합하여 상기 a), b), c)의 구성비를 갖는 열발포성 방염도포제.A heat-foaming anti-foaming agent having a composition ratio of a), b), c) by blending 1 to 20% by weight. 방염을 목적으로 상기 청구항 1항, 2항, 3항, 4항에 의거 제조된 조성물을 도포, 침적하여 제조된 방염천 또는 방염포.       Flame retardant fabric or flame retardant fabric prepared by applying and depositing the composition prepared according to claim 1, 2, 3, 4 for the purpose of flame retardant.
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KR101538719B1 (en) * 2014-04-25 2015-07-28 한국건설기술연구원 Method for Manufaturing Incombustible Sandwitch Panel Using Heat-expandable Adhesive
KR20150123520A (en) * 2014-04-25 2015-11-04 한국건설기술연구원 Heat-expandable Filler for Fireproof Filling Structure and Method for Manufaturing the Same
KR20150123524A (en) 2014-04-25 2015-11-04 한국건설기술연구원 Heat-expandable Adhesive for Incombustible Door and Method for Manufaturing the Door Using the Same
CN105829477A (en) * 2013-12-10 2016-08-03 韩国建设技术研究院 Heat-Foamable Coating Agent And Method For Preparing Same
WO2020030830A1 (en) 2018-08-06 2020-02-13 Success World, S.L. Fireproof composition
KR20210088450A (en) * 2020-01-06 2021-07-14 대한폴리텍(주) A semi-nonflammable insulation material and manufacturing method for it
KR102284724B1 (en) * 2020-04-28 2021-08-04 주식회사 포웍스 Resin composition for natural mat with fire extinguishing function and manufacturing method of the resin composition
US11174435B2 (en) * 2017-11-08 2021-11-16 International Business Machines Corporation Levoglucosan-based flame retardant compounds

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105829477A (en) * 2013-12-10 2016-08-03 韩国建设技术研究院 Heat-Foamable Coating Agent And Method For Preparing Same
JP2017503044A (en) * 2013-12-10 2017-01-26 コリア インスティテュート オブ コンストラクション テクノロジー Thermally foamable coating agent and method for producing the same
KR101538719B1 (en) * 2014-04-25 2015-07-28 한국건설기술연구원 Method for Manufaturing Incombustible Sandwitch Panel Using Heat-expandable Adhesive
KR20150123520A (en) * 2014-04-25 2015-11-04 한국건설기술연구원 Heat-expandable Filler for Fireproof Filling Structure and Method for Manufaturing the Same
KR20150123524A (en) 2014-04-25 2015-11-04 한국건설기술연구원 Heat-expandable Adhesive for Incombustible Door and Method for Manufaturing the Door Using the Same
US11174435B2 (en) * 2017-11-08 2021-11-16 International Business Machines Corporation Levoglucosan-based flame retardant compounds
WO2020030830A1 (en) 2018-08-06 2020-02-13 Success World, S.L. Fireproof composition
KR20210088450A (en) * 2020-01-06 2021-07-14 대한폴리텍(주) A semi-nonflammable insulation material and manufacturing method for it
KR102284724B1 (en) * 2020-04-28 2021-08-04 주식회사 포웍스 Resin composition for natural mat with fire extinguishing function and manufacturing method of the resin composition

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