KR20160139235A - Water repellent for wood furniture - Google Patents
Water repellent for wood furniture Download PDFInfo
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- KR20160139235A KR20160139235A KR1020150073772A KR20150073772A KR20160139235A KR 20160139235 A KR20160139235 A KR 20160139235A KR 1020150073772 A KR1020150073772 A KR 1020150073772A KR 20150073772 A KR20150073772 A KR 20150073772A KR 20160139235 A KR20160139235 A KR 20160139235A
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C09D123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/02—Polysilicates
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
본 발명은 가구용 목재 합판의 측면 등에 도포하는 방수제에 관한 것으로서, 목재 가구의 수분 흡수에 의해 부재간 연결부에 변형이 생기거나 접착된 마감재가 탈락하는 현상을 방지하기 위한 목재 가구용 방수제에 관한 것이다.
The present invention relates to a waterproofing agent applied to the side of a wood plywood for furniture, and more particularly, to a waterproofing agent for wood furniture for preventing deformation of a connecting part between members due to moisture absorption of wood furniture, or detachment of adhered finishing material.
목재 가구에 대해 방수-방습 처리를 하기 위해서는 목재 가구용 패널 제조시 왁스를 첨가하거나 접착제의 첨가량을 증량시키는 방법 등이 있으나, 그 효과가 크지 않다. MDF, HDF, P, B 등의 압축 목재 판재는 위와 같은 방법으로 처리된 것임에도 불구하고, 습기나 물에 접하게 되면 형태가 부풀어 가구 변형과 하자의 원인이 된다.
Waterproofing of wood furniture - A method of damp-proofing is to add wax or increase the amount of adhesive to be added when manufacturing a wooden furniture panel, but the effect is not significant. Compressed wood boards such as MDF, HDF, P, and B are processed in the same manner as above, but if they come into contact with moisture or water, the shape will swell and cause furniture deformation and defects.
한편, 우레탄 화합물은 강인성, 유연성, 내약품성, 저온경화성, 내식성 및 접착성 등과 같은 기계적 물성과 배합 정도에 따라 고경도 상태에서 탄성을 나타낼 수 있으며 화학적 특성이 매우 우수하다. 이러한 특성들로 인하여, 상기 우레탄 화합물은 많은 분야에서 널리 응용되고 있다. 특히 도료, 폼, 바닥재, 방수재 및 실링재 등으로 다양하게 사용되고 있으므로, 본 발명의 발명자는 우레탄 화합물을 목재 가구용 방수제의 기초 성분으로 적용하는 연구를 진행했다.
On the other hand, the urethane compound can exhibit elasticity in a high hardness state according to mechanical properties such as toughness, flexibility, chemical resistance, low temperature curability, corrosion resistance and adhesiveness and degree of compounding, and has excellent chemical properties. Due to these properties, the urethane compound is widely applied in many fields. The inventors of the present invention have conducted studies to apply a urethane compound as a base component of a waterproofing agent for wood furniture, since they are used variously as paints, foams, flooring materials, waterproofing materials and sealing materials.
다만 이러한 우레탄 화합물에 기반을 둔 목재 가구용 방수제로 적용하기 위해서는 상온 하에서 방치한 경우에도 겔화 등을 일으키지 않는 뛰어난 보존 안전성이 요구되면서도, 적정 점도가 있어 도포 작업시 흘러 내림이 없어야 하고, 도포 작업 후에는 빠르게 경화해야 한다. 또한, 방수제 도포, 경화 후에도 어느 정도의 탄성이 있어 부스러지거나 탈리되지 않아야 하며, 인체 유해 물질의 혼용이 배제되어야 한다.
However, in order to be applied as a waterproofing agent for wood furniture based on such a urethane compound, excellent preservation safety that does not cause gelation even when left under normal temperature is required, and there is no proper flow of viscosity at the time of application, Cure quickly. In addition, after the application of the waterproofing agent and curing, it should have some elasticity so that it should not be crumbled or desorbed, and the mixture of human harmful substances should be excluded.
본 발명은 내수성이 우수하고, 보존 안전성, 적정점도, 가공성(경화속도), 접착성 및 경화 후의 내구성, 내열성, 연성 등이 적절히 발현되는 목재 가구용 방수제를 제공함에 그 목적이 있다.
It is an object of the present invention to provide a waterproofing agent for wood furniture which is excellent in water resistance, and is suitable for storage stability, proper viscosity, processability (curing rate), adhesion, durability after curing, heat resistance and ductility.
본 발명은 「우레탄수지(urethane resin) 100중량부; 메틸아세테이트 100~300중량부; 에폭시화합물(epoxy compounds) 20~30중량부; 실란화합물(silane compounds) 10~20중량부; 폴리부텐(Polybutene) 5~10중량부; 및 폴리머릭 엠디아이(polymeric MDI) 1 ∼ 5중량부; 가 혼합된 목재 가구용 방수제」를 제공한다.The present invention relates to a urethane resin composition comprising 100 parts by weight of a urethane resin; 100 to 300 parts by weight of methyl acetate; 20 to 30 parts by weight of epoxy compounds; 10 to 20 parts by weight of silane compounds; 5 to 10 parts by weight of polybutene; And 1 to 5 parts by weight of polymeric MDI; Waterproofing agent for wood furniture mixed with water ".
상기 우레탄수지는 수산기값이 100~250mgKOH/g인 폴리올을 이소시아네이트와 반응시켜 수득한 것을 적용할 수 있고, 상기 에폭시화합물은 상기 우레탄수지의 수산기에 반응하는 작용기를 갖고, 수평균분자량이 2,500~6,500인 것을 적용할 수 있다. The urethane resin can be obtained by reacting a polyol having a hydroxyl value of 100 to 250 mgKOH / g with an isocyanate. The epoxy compound has a functional group reactive with the hydroxyl group of the urethane resin and has a number average molecular weight of 2,500 to 6,500 Can be applied.
또한, 상기 실란화합물은 알콕시실란을 90~100℃ 온도조건에서 산(acid)처리한 후 가수분해하여 수득한 것을 적용할 수 있다.The silane compound may be obtained by treating an alkoxysilane with an acid at a temperature of 90 to 100 ° C. and hydrolyzing the alkoxysilane.
또한, 본 발명에는 비중 1.045~1.086의 로진(rosin)을 상기 메틸아세테이트 100중량부 대비 10~15중량부 더 첨가시켜 경화전의 점착성 및 경화후의 내구성을 더욱 향상시킬 수 있다.
In the present invention, rosin having a specific gravity of 1.045 to 1.086 may be further added in an amount of 10-15 parts by weight based on 100 parts by weight of the methyl acetate, thereby further improving the tackiness before curing and the durability after curing.
1. 본 발명이 제공하는 목재 가구용 방수제를 가구에 도포하여 목재 가구 내부에 습기의 침투를 방지함으로써 목재 가구의 수명을 연장시킬 수 있다. 1. It is possible to extend the service life of wooden furniture by applying the waterproofing agent for wooden furniture provided by the present invention to the furniture to prevent the penetration of moisture into the wooden furniture.
2. 본 발명이 제공하는 목재 가구용 방수제는 경화 전에 접착력이 있으므로 목재 가구 표면에 대한 마감재 접착 작업에 적용될 수 있으며, 경화 후의 우수한 방수성에 의해 목재 가구 표면과 마감재 사이의 수분 침투를 차단하므로 마감재 들뜸 현상을 저감시킬 수 있다.2. The waterproofing agent for wood furniture provided by the present invention can be applied to the adhesion of the finish material to the surface of wood furniture because it has an adhesive strength before curing and by preventing water penetration between the surface of wood furniture and the finish material due to excellent waterproof property after hardening, Can be reduced.
3. 본 발명이 제공하는 목재 가구용 방수제는 경화 후에 내구성이 우수하여 목재 가구 표면의 스크레치 발생을 방지할 수 있다.
3. The waterproofing agent for wood furniture provided by the present invention is excellent in durability after curing and can prevent scratches on the surface of wooden furniture.
본 발명은 「우레탄수지(urethane resin) 100중량부; 메틸아세테이트 100~300중량부; 에폭시화합물(epoxy compounds) 20~30중량부; 실란화합물(silane compounds) 10~20중량부; 폴리부텐(Polybutene) 5~10중량부; 및 폴리머릭 엠디아이(polymeric MDI) 1 ∼ 5중량부; 가 혼합된 목재 가구용 방수제」를 제공한다.
The present invention relates to a urethane resin composition comprising 100 parts by weight of a urethane resin; 100 to 300 parts by weight of methyl acetate; 20 to 30 parts by weight of epoxy compounds; 10 to 20 parts by weight of silane compounds; 5 to 10 parts by weight of polybutene; And 1 to 5 parts by weight of polymeric MDI; Waterproofing agent for wood furniture mixed with water ".
상기 우레탄수지는 수산기값이 100~250mgKOH/g인 폴리올을 이소시아네이트와 반응시켜 수득한 것을 적용할 수 있다. 우레탄수지의 수산기값은 접착성능에 관계된 것으로서, 수산기값이 100mgKOH/g 미만인 경우에는 응집력이 충분치 아니한 문제점이 발생할 수 있고, 수산기값이 250mgKOH/g을 초과하는 경우에는 접착력이 떨어질 수 있다. 상기 우레탄수지 수득을 위한 이소시아네이트의 사용량은 폴리올 100중량부에 대하여 10~20중량부가 적절하다.
The urethane resin may be obtained by reacting a polyol having a hydroxyl value of 100 to 250 mgKOH / g with an isocyanate. The hydroxyl value of the urethane resin is related to the adhesion performance. When the hydroxyl value is less than 100 mgKOH / g, the cohesive force may not be sufficient. When the hydroxyl value is more than 250 mgKOH / g, the adhesive strength may decrease. The amount of the isocyanate used for obtaining the urethane resin is suitably 10 to 20 parts by weight based on 100 parts by weight of the polyol.
상기 메틸아세테이트(CH3COOCH3)는 물과 다른 유기용매들과의 용해성이 뛰어나며, 과일향기가 나는 무색 용매로서, 뛰어난 용해능력 때문에 라커나 페인트 제거제의 용매나 사용된다. 메틸아세테이트는 손톱 손질용(nail polish remover)으로 사용할 수 있을 정도로 안전하고, 끓는점이 57℃ 이기 때문에 용매의 증발속도를 빠르게 한다. 상기 메틸아세테이트를 우레탄수지 100중량부 대비 100중량부 미만을 혼합하는 경우에는 조성물의 점도가 과도하게 높아져 도포 작업이 어렵게 되고, 우레탄수지 100중량부 대비 300중량부를 초과하는 경우에는 점도가 낮아져서 도포를 한 조성물이 흘러내리는 문제가 발생할 수 있으므로, 우레탄수지 100중량부 대비 100~300중량부를 혼합하는 것이 바람직하다.
The methyl acetate (CH 3 COOCH 3 ) is a colorless solvent having excellent solubility with water and other organic solvents and having a fruit flavor, and is used as a solvent for a lacquer or paint remover due to its excellent solubility. Methyl acetate is safe enough to be used as a nail polish remover and has a boiling point of 57 ° C, thus accelerating the evaporation rate of the solvent. When the amount of the methyl acetate is less than 100 parts by weight based on 100 parts by weight of the urethane resin, the viscosity of the composition is excessively high and the coating operation becomes difficult. When the amount exceeds 300 parts by weight based on 100 parts by weight of the urethane resin, It is preferable to mix 100 to 300 parts by weight with respect to 100 parts by weight of the urethane resin.
상기 에폭시화합물은 부착성이 우수할 뿐만 아니라, 다양한 화학약품 및 용매에 대한 내구성이 뛰어나다. 이러한 특성들로 인해 상기 에폭시화합물은 해양, 항공기, 건축 등의 분야에서 금속, 알루미늄, 아연도금, 목재 및 콘크리트의 보수, 마감제, 보호 코팅 및 장식코팅을 위한 재료로 활용된다. 본 발명에서는 상기 우레탄수지의 수산기에 반응하는 작용기를 갖고, 수평균분자량이 2,500~6,500인 것을 적용할 수 있으며, 상기 우레탄수지 100중량부 대비 20~30중량부를 혼합함으로써 상기 우레탄수지의 경화 중 발포현상을 저감시키며 조성물의 코팅성능(접착력)을 향상시킨다.
The epoxy compound is not only excellent in adhesiveness but also excellent in durability against various chemicals and solvents. Due to these properties, the epoxy compounds are used as materials for repair, finishing, protective coatings and decorative coatings of metals, aluminum, zinc plating, wood and concrete in the fields of marine, aircraft, and construction. In the present invention, it is possible to use the urethane resin having a functional group reactive to hydroxyl groups of the urethane resin and having a number average molecular weight of 2,500 to 6,500. By mixing 20 to 30 parts by weight of the urethane resin with respect to 100 parts by weight of the urethane resin, And the coating performance (adhesion) of the composition is improved.
상기 실란화합물은 상기 우레탄수지 100중량부 대비 10~20중량부 혼합된다. 실란은 유기재료와 결합하는 유기작용기 및 무기재료와 반응하는 가수분해성기를 가지고 있어 양자를 결합시키는 역할을 한다. 즉, 실란화합물이 커플링제로 작용하여 이중 유기-무기 반응성을 통해 공유결합을 형성함으로써 조성물의 점착성을 강화시키고, 조성물 경화 후의 기계적 강도, 내수성 등을 향상시킨다.
The silane compound is mixed in an amount of 10 to 20 parts by weight based on 100 parts by weight of the urethane resin. The silane has a hydrolyzable group that reacts with an organic functional group and an inorganic material that bind to the organic material, thereby binding the both. That is, the silane compound functions as a coupling agent to form a covalent bond through dual organic-inorganic reactivity, thereby enhancing the tackiness of the composition and improving the mechanical strength and water resistance after curing the composition.
본 발명에서는 알콕시실란을 90~100℃ 온도조건에서 산(acid)처리한 후 가수분해하여 수득한 실란화합물을 적용할 수 있다. 일반적으로 알콕시실란은 물에 의해 가수분해 되는데, 본 발명에서는 알콕시실란의 결합을 끊어주는 화학적 가수분해를 위해 산(acid)처리를 한다. 산(acid)처리는 황산, 염산, 불산, 붕산, 붕사, 인산, 인산나트륨, 염화나트륨, 산화아연등의 산(acid)을 이용할 수 있다.
In the present invention, the silane compound obtained by treating an alkoxysilane with an acid at a temperature of 90 to 100 ° C and hydrolyzing the alkoxysilane can be applied. Generally, the alkoxysilane is hydrolyzed by water. In the present invention, acid treatment is performed for chemical hydrolysis which breaks the bond of alkoxysilane. As the acid treatment, an acid such as sulfuric acid, hydrochloric acid, hydrofluoric acid, boric acid, borax, phosphoric acid, sodium phosphate, sodium chloride, zinc oxide and the like can be used.
상기 폴리부텐은 상기 우레탄수지 100중량부 대비 5~10중량부 혼합되며, 이에 따라 조성물의 점착성을 향상시키면서 분산성과 내습성을 향상시킨다. 본 발명에 적용되는 폴리부텐의 적정 점도는 2200~2400mPa-s이다.
The polybutene is mixed with 5 to 10 parts by weight based on 100 parts by weight of the urethane resin, thereby improving the dispersibility and moisture resistance while improving the adhesion of the composition. The optimum viscosity of the polybutene used in the present invention is 2200 to 2400 mPa-s.
폴리머릭 엠디아이(polymeric MDI)는 이소시안네이트(-NCO)기를 가지고 있으며, 상기 우레탄수지 100중량부 대비 1 ∼ 5중량부 혼합되며, 이에 따라 조성물의 경화강도와 접착력을 증대시킨다.
Polymeric MDI has an isocyanate (-NCO) group and is mixed with 1 to 5 parts by weight based on 100 parts by weight of the urethane resin, thereby increasing the curing strength and adhesion of the composition.
또한, 본 발명에는 비중 1.045~1.086의 로진(rosin)을 상기 메틸아세테이트 100중량부 대비 10~15중량부 더 첨가시켜 조성물 경화 전의 점착성 및 경화 후의 내구성을 더욱 향상시킬 수 있다.
In the present invention, rosin having a specific gravity of 1.045 to 1.086 may be further added in an amount of 10 to 15 parts by weight based on 100 parts by weight of the methyl acetate, thereby further improving the tackiness before curing the composition and the durability after curing.
전술한 바와 같은 목재 가구용 방수제는 붓 도장이나 스프레이 건 방식으로 목재 가구 표면에 코팅시킬 수 있으며, 상온에서 자연건조에 따라 경화된다. 본 발명이 제공하는 목재 가구용 방수제의 경화 전에는 접착력이 있으므로 가구 표면에 대한 마감재 접착에 이용하거나 부재간의 결합에 이용할 수 있다.
The above-mentioned waterproofing agent for wood furniture can be coated on the surface of wooden furniture by brush painting or spray gun method, and hardened by natural drying at room temperature. Since the waterproofing agent for wood furniture provided by the present invention has an adhesive strength before curing, it can be used for bonding the finishing material to the surface of furniture or for bonding between members.
두께 18mm 합판에 본 발명이 제공하는 방수제 일 실시예를 도포한 후 방수성 및 내수성을 시험하였다. Waterproofing and water resistance were tested after applying one example of the waterproofing agent provided by the present invention to 18 mm thick plywood.
시험을 위한 위 실시예는 우레탄수지 100중량부 대비 메틸아세테이트 150중량부, 에폭시화합물 20중량부, 실란화합물 20중량부, 폴리부텐 8중량부, 폴리머릭 엠디아이 3중량부를 혼합한 것이다.
In the above example for testing, 150 parts by weight of methyl acetate, 20 parts by weight of an epoxy compound, 20 parts by weight of a silane compound, 8 parts by weight of polybutene and 3 parts by weight of polymeric MDI are mixed with 100 parts by weight of a urethane resin.
방수성 시험Waterproofness test
- 시험방법 : 합판에 상기 실시예를 도포하여 경화시킨 시험체(이하, 시험예)와 방수제 처리를 하지 않은 일반 합판(이하, 비교예)의 표면에 각각 끓는 물을 붓고 수분 증발을 막기 위한 커버를 씌운 후 48시간 동안 존치시킴.- Test method: Pouring boiling water on the surface of a test piece (hereinafter, referred to as a test example) coated with the above example on the plywood and hardened with a waterproofing agent (hereinafter referred to as a comparative example) Covered for 48 hours after covering.
- 시험결과 : 상기 시험예 표면에는 이상이 없었으나 비교예 표면에 수포 발생
- Test result: The above test sample had no abnormality but the surface of Comparative Example was blistered
내수성 시험Water resistance test
- 시험방법 : 시험예와 비교예를 각각 물에 잠기도록 담궈 24시간 존치시킴- Test method: Immerse the test sample and the comparative sample in water for 24 hours.
- 시험결과 : 시험예는 아무런 변화가 없었으나 비교예는 측면을 통한 수침에 의해 두께가 증가함(18mm → 21mm)- Test result: The test example showed no change but the comparative example increased in thickness by soaking through the side (18mm? 21mm)
Claims (5)
메틸아세테이트 100~300중량부;
에폭시화합물(epoxy compounds) 20~30중량부;
실란화합물(silane compounds) 10~20중량부;
폴리부텐(Polybutene) 5~10중량부; 및
폴리머릭 엠디아이(polymeric MDI) 1 ∼ 5중량부; 가 혼합된 목재 가구용 방수제.
100 parts by weight of urethane resin;
100 to 300 parts by weight of methyl acetate;
20 to 30 parts by weight of epoxy compounds;
10 to 20 parts by weight of silane compounds;
5 to 10 parts by weight of polybutene; And
1 to 5 parts by weight of polymeric MDI; Waterproofing agent for mixed wood furniture.
상기 우레탄수지는 수산기값이 100~250mgKOH/g인 폴리올을 이소시아네이트와 반응시켜 수득한 것을 특징으로 하는 목재 가구용 방수제.
The method of claim 1,
Wherein the urethane resin is obtained by reacting a polyol having a hydroxyl value of 100 to 250 mgKOH / g with an isocyanate.
상기 에폭시화합물은 상기 우레탄수지의 수산기에 반응하는 작용기를 갖고, 수평균분자량이 2,500~6,500인 것을 특징으로 하는 목재 가구용 방수제
The method of claim 1,
Wherein the epoxy compound has a functional group reactive with the hydroxyl group of the urethane resin and has a number average molecular weight of 2,500 to 6,500.
상기 실란화합물은 알콕시실란을 90~100℃ 온도조건에서 산(acid)처리한 후 가수분해하여 수득한 것을 특징으로 하는 목재 가구용 방수제.
The method of claim 1,
Wherein the silane compound is obtained by treating an alkoxysilane with an acid at a temperature of 90 to 100 占 폚 and hydrolyzing the alkoxysilane to obtain a waterproofing agent for wood furniture.
비중 1.045~1.086의 로진(rosin)이 상기 메틸아세테이트 100중량부 대비 10~15중량부 더 포함된 것을 특징으로 하는 목재 가구용 방수재.5. The method according to any one of claims 1 to 4,
Characterized in that rosin having a specific gravity of 1.045 to 1.086 is further contained in an amount of 10 to 15 parts by weight based on 100 parts by weight of the methyl acetate.
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| CN116289217A (en) * | 2023-02-24 | 2023-06-23 | 福可新材料(上海)有限公司 | Fluorine-free waterproof and oil-stain-resistant finishing agent for textiles, and preparation method and application thereof |
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