KR970043291A - Epoxy resin solution for coating steel sheet and manufacturing method of resin coated zinc plated steel sheet with excellent corrosion resistance, weldability and processability - Google Patents

Epoxy resin solution for coating steel sheet and manufacturing method of resin coated zinc plated steel sheet with excellent corrosion resistance, weldability and processability Download PDF

Info

Publication number
KR970043291A
KR970043291A KR1019950068489A KR19950068489A KR970043291A KR 970043291 A KR970043291 A KR 970043291A KR 1019950068489 A KR1019950068489 A KR 1019950068489A KR 19950068489 A KR19950068489 A KR 19950068489A KR 970043291 A KR970043291 A KR 970043291A
Authority
KR
South Korea
Prior art keywords
resin solution
weight
steel sheet
resin
corrosion resistance
Prior art date
Application number
KR1019950068489A
Other languages
Korean (ko)
Other versions
KR100256326B1 (en
Inventor
박찬섭
노상걸
정용균
Original Assignee
김종진
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 김종진, 포항종합제철 주식회사, 신창식, 재단법인 산업과학기술연구소 filed Critical 김종진
Priority to KR1019950068489A priority Critical patent/KR100256326B1/en
Publication of KR970043291A publication Critical patent/KR970043291A/en
Application granted granted Critical
Publication of KR100256326B1 publication Critical patent/KR100256326B1/en

Links

Classifications

    • 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
    • C09D5/08—Anti-corrosive paints
    • C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
    • C09D5/084—Inorganic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/007—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/10—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers containing more than one epoxy radical per molecule
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/14—Polycondensates modified by chemical after-treatment
    • C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
    • C08G59/1438—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
    • C08G59/1455—Monocarboxylic acids, anhydrides, halides, or low-molecular-weight esters thereof
    • C08G59/1461—Unsaturated monoacids
    • C08G59/1466—Acrylic or methacrylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
    • C08G59/4014—Nitrogen containing compounds
    • C08G59/4028—Isocyanates; Thioisocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/50—Amines
    • C08G59/5046—Amines heterocyclic
    • C08G59/5053—Amines heterocyclic containing only nitrogen as a heteroatom
    • C08G59/508—Amines heterocyclic containing only nitrogen as a heteroatom having three nitrogen atoms in the ring
    • C08G59/5086—Triazines; Melamines; Guanamines
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
    • 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
    • C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
    • C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • C23C28/3225—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only with at least one zinc-based layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Emergency Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Laminated Bodies (AREA)

Abstract

본 발명은 내식성, 용접성 및 가공성이 우수한 강판피복용 에폭시수지용액 및 이를 이용한 수지 피복용 아연도금강판 제조방법에 관한 것으로, 본 발명의 수지용액은 아크릴 변성 에폭시 수지용액; 경화제로는 수지 용액의 고형분을 기준으로 멜라민 수지 10-40중량% 혹은 이소시아네이트 수지 10-50중량%; 윤활제로는 수지 용액의 고형분을 기준으로 올레핀계 왁스 혹은 폴리에틸렌계 왁스를 단독으로 혹은 혼합하여 3-25중량%; 금속염으로는 수지 용액의 고형분을 기준으로 코발트 오레이트 [Co(C18H33O2)2],망간 오레이트[Mn(C18H33O2)2] 및 망간 옥토에이트[Mn(C8H17O2)3]로 부터 선택된 1종 혹은 2종 이상의 금속염 0.1-5.0중량%; 및 내식성 향상제로는 수지 용액의 고형분을 기준으로 실리카 10-30중량% 혹은 바륨크로메이트(BaCrO4) 스트로튬크로메이트(SrCrO4), 무스크롬산(CrO3) 및 징크크로메이트(ZnCrO4)로 부터 선택된 1종 혹은 2종을 혼합한 크롬화합물 5-10중량%; 로 조성되며, 본 발명의 우레탄 수지용액을 크로메이트 처리된 용융아연도금강판에 건조도막두께가 0.5-3.0㎛가 되도록 도포한 후, 강판 온도 130-200℃로 소부처리함으로써 용접성, 내식성 및 가공성이 우수한 수지피복도금 강판을 제조할 수 있다.The present invention relates to an epoxy resin solution for coating steel sheets excellent in corrosion resistance, weldability, and workability, and a method for producing a zinc-plated steel sheet for resin coating using the same, wherein the resin solution of the present invention is an acrylic modified epoxy resin solution; As a hardening | curing agent, 10-40 weight% of melamine resin or 10-50 weight% of isocyanate resins based on solid content of resin solution; Examples of the lubricant include 3-25% by weight of olefinic wax or polyethylene wax alone or mixed based on the solids content of the resin solution; Metal salts include cobalt ore [Co (C 18 H 33 O 2 ) 2 ], manganese ore [Mn (C 18 H 33 O 2 ) 2 ] and manganese octoate [Mn (C 8 ) based on the solids content of the resin solution. H 17 O 2 ) 3 ] 0.1-5.0% by weight of one or more metal salts selected from; And the corrosion resistance improving agent is selected from 10-30% by weight of silica or barium chromate (BaCrO 4 ) strontium chromate (SrCrO 4 ), chromium free (CrO 3 ) and zinc chromate (ZnCrO 4 ) based on the solids content of the resin solution. 5-10 weight% of chromium compounds which mixed species or 2 kinds; The urethane resin solution of the present invention is coated on a chromate-treated hot dip galvanized steel sheet so as to have a dry coating thickness of 0.5-3.0 μm, followed by baking at a steel plate temperature of 130-200 ° C. for excellent weldability, corrosion resistance, and workability. The resin coated plate steel sheet can be produced.

Description

강판 피복용 에폭시계수지 용액 및 이를 이용한 내식성, 용접성 및 가공성이 우수한 수지피복아연도금강판 제작방법Epoxy resin solution for coating steel sheet and manufacturing method of resin coated zinc plated steel sheet with excellent corrosion resistance, weldability and processability

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 윤활제 첨가량에 따른 마찰계수의 변화를 나타내는 그래프이며1 is a graph showing the change of the friction coefficient according to the amount of lubricant added

Claims (3)

아크릴 변성 에폭시 수지용액; 경화제로는 수지 용액의 고형분을 기준으로 멜라민 수지 10-40중량% 혹은 이소시아네이트 수지 10-50중량%; 윤활제로는 수지 용액의 고형분을 기준으로 올레핀계 왁스 혹은 폴리에틸렌계 왁스를 단독으로 혹은 혼합하여 3-25중량%; 금속염으로는 수지 용액의 고형분을 기준으로 코발트 오레이트[[Co(C18H33O2)2],망간 오레이트[Mn(C18H33O2)2] 및 망간 옥토에이트[Mn(C8H17O2)3]로 부터 선택된 1종 혹은 2종 이상의 금속염 0.1-5.0중량%; 및 내식성 향상제로는 수지 용액의 고형분을 기준으로 실리카 10-30중량% 혹은 바륨크로메이트(BaCrO4) 스트로튬크로메이트(SrCrO4), 무스크롬산(CrO3) 및 징크크로메이트(ZnCrO4)로 부터 선택된 1종 혹은 2종을 혼합한 크롬화합물 0.5-10중량%; 로 된 내식성, 용접성 및 가공성이 우수한 강판 피복용 에폭시 수지용액Acrylic modified epoxy resin solution; As a hardening | curing agent, 10-40 weight% of melamine resin or 10-50 weight% of isocyanate resins based on solid content of resin solution; Examples of the lubricant include 3-25% by weight of olefinic wax or polyethylene wax alone or mixed based on the solids content of the resin solution; Metal salts include cobalt ore [[Co (C 18 H 33 O 2 ) 2 ], manganese orate [Mn (C 18 H 33 O 2 ) 2 ] and manganese octoate [Mn (C) based on the solids content of the resin solution. 8 H 17 O 2 ) 3 ] 0.1-5.0% by weight of one or more metal salts selected from; And the corrosion resistance improving agent is selected from 10-30% by weight of silica or barium chromate (BaCrO 4 ) strontium chromate (SrCrO 4 ), chromium free (CrO 3 ) and zinc chromate (ZnCrO 4 ) based on the solids content of the resin solution. 0.5-10 weight% of chromium compounds which mixed species or 2 kinds; Epoxy resin solution for steel plate coating with excellent corrosion resistance, weldability and workability 제1항에 있어서, 상기 아크릴 변성 에폭시 수지는 에폭시 그라프트 아크릴레이트이며, 수지의 에폭시부와 아크릴부는 수지내의 히드록시가(-OH Value)가 20-60이 되도록 구성되며, 상기 에폭시 수지의 분자량은 2000-6000임을 특징으로 하는 수지용액The method of claim 1, wherein the acrylic modified epoxy resin is an epoxy graft acrylate, the epoxy portion and the acrylic portion of the resin is configured so that the hydroxyl value (-OH Value) in the resin is 20-60, the molecular weight of the epoxy resin Resin solution characterized in that the 2000-6000 청구범위 1항의 수지용액을 크로메이트 처리된 용융아연 도금강판에 건조도막두께가 0.5-3.0㎛가 되도록 도포한 후, 강판 온도 130-200℃로 소부처리하는 용접성, 내식성 및 가공성이 개선된 수지 피복아연 도금강판 제조방법Resin-coated zinc with improved weldability, corrosion resistance and processability, which is coated with the resin solution of claim 1 to a chromate-treated hot dip galvanized steel sheet to have a dry coating thickness of 0.5-3.0 μm, followed by baking at a steel plate temperature of 130-200 ° C. Plated Steel Sheet Manufacturing Method
KR1019950068489A 1995-12-30 1995-12-30 Steel coating epoxy resin composition and the preparation of its coated steel plate having anticorrosiveness and good weldding property KR100256326B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950068489A KR100256326B1 (en) 1995-12-30 1995-12-30 Steel coating epoxy resin composition and the preparation of its coated steel plate having anticorrosiveness and good weldding property

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950068489A KR100256326B1 (en) 1995-12-30 1995-12-30 Steel coating epoxy resin composition and the preparation of its coated steel plate having anticorrosiveness and good weldding property

Publications (2)

Publication Number Publication Date
KR970043291A true KR970043291A (en) 1997-07-26
KR100256326B1 KR100256326B1 (en) 2000-05-15

Family

ID=19448107

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950068489A KR100256326B1 (en) 1995-12-30 1995-12-30 Steel coating epoxy resin composition and the preparation of its coated steel plate having anticorrosiveness and good weldding property

Country Status (1)

Country Link
KR (1) KR100256326B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100550788B1 (en) * 2001-12-22 2006-02-08 주식회사 포스코 Preparation and coating method of resin coating solusion with excellent weldability and formability

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100833055B1 (en) * 2001-12-24 2008-05-27 주식회사 포스코 Preparation and coating method of resin coating solution with excellent corrosion resistance, formability and heat stability
KR100782763B1 (en) * 2001-12-24 2007-12-05 주식회사 포스코 Resin coating composition for steel sheet with improved high corroision resistance and the coating method using it
EP1907492B1 (en) 2005-07-25 2014-01-08 Posco Pre-sealed steel sheet with improved anti- corrosion and weldability and preparing method thereof
KR101461756B1 (en) 2012-12-26 2014-11-13 주식회사 포스코 High-strength galvanized steel sheet having graphene layer and method for mafacturing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100550788B1 (en) * 2001-12-22 2006-02-08 주식회사 포스코 Preparation and coating method of resin coating solusion with excellent weldability and formability

Also Published As

Publication number Publication date
KR100256326B1 (en) 2000-05-15

Similar Documents

Publication Publication Date Title
US4411964A (en) Composite coating steel sheets having good corrosion resistance paintability and corrosion resistance after paint coating
US5578669A (en) Water-based polyurethane coating composition
EP0453374B1 (en) Improved corrosion-resistant surface coated steel sheet
KR890700471A (en) High Corrosion Resistance Surface Treatment
CA2253133A1 (en) Porcelain-enameled steel sheets and frits for enameling
KR910015720A (en) Organic coated steel sheet with excellent corrosion resistance
KR910002492B1 (en) Highly corrosion-resistant multi-layer coated steel sheets
KR970043291A (en) Epoxy resin solution for coating steel sheet and manufacturing method of resin coated zinc plated steel sheet with excellent corrosion resistance, weldability and processability
KR940005400A (en) Organic composite clad steel
KR940019884A (en) Organic composite coated steel sheet with excellent electrodeposition coating and corrosion resistance and its manufacturing method
KR880014128A (en) Corrosion Resistance Zinc-Silica Composite Electroplated Steel Sheet
US4985311A (en) Zn-Ni based composite electroplated steel sheet and multi-layer composite plated steel sheet
KR920019966A (en) Organic composite coated steel sheet with excellent corrosion resistance and spot welding
JPS648033A (en) High corrosion resistant surface treated steel plate
KR970043288A (en) Strong coating urethane resin solution and resin coating molten zinc plated steel sheet manufacturing method using the same
JP3068976B2 (en) Organic composite steel sheet with excellent corrosion resistance and cationic electrodeposition properties
KR950018665A (en) Resin coating treatment solution with excellent corrosion resistance and weldability and manufacturing method of resin coated hot dip galvanized steel sheet using the same
JPS59179339A (en) Precoated steel plate
KR960034463A (en) Electrolytic chromate bath for zinc-based plated steel sheet and method for producing electrolytic chromate-treated zinc-based plated steel sheet excellent in corrosion resistance, fingerprint resistance and chrome elution resistance
KR100265892B1 (en) The process for preparation of hydro-lubricant resion solution and its coating method
GB2212816A (en) Zn-Ni based composite electroplated material and multi-layer composite plated material
KR970021245A (en) Paint composition and single layer-painted steel sheet
KR950018647A (en) Zinc-iron alloy coated steel sheet with few arc spots and excellent corrosion resistance after painting
JP4324095B2 (en) Pre-coated metal plate
KR960010903A (en) Organic and inorganic composite resin solution for resin steel sheet with excellent corrosion resistance, fingerprint resistance and weldability

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20090224

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee