公开(公告)号：KR100454716B1

公开(公告)日：2004-11-05

申请号：KR1020020018287

申请日：2002-04-03

Applicant: 한국과학기술연구원

Inventor： 김대준 ,  박일석 ,  이명현

IPC: C09J7/00

Abstract: PURPOSE: Water-based ceramic slurry is provided to prevent the harm to environment and human body, to improve the drying speed of a ceramic tape, and to perform the working process at a low viscosity. CONSTITUTION: The water-based ceramic slurry comprises a metal oxide, and 0.05 to 2.0 wt% of a dispersing agent, 10 to 50 wt% of water, 3 to 17 wt% of a plasticizer and 5 to 30 wt% of an acrylic binder, based on the weight of the metal oxide. In particular, the acrylic binder comprises 40 to 70 wt% of butyl acrylate, 10 to 20 wt% of methyl methacrylate, 10 to 40 wt% of 2-hydroxyethyl methacrylate and 2 to 10 wt% of methacrylic acid, and has a glass transition temperature of -20±5 deg.C and monomer content in emulsion of 60% or more. The ceramic tape can be produced by defoaming the ceramic slurry, forming it into a sheet and then drying.

Abstract translation: 用途：提供水基陶瓷浆料，以防止对环境和人体的危害，提高陶瓷带的干燥速度，并在低粘度下进行加工过程。 组成：水基陶瓷浆料包含金属氧化物和0.05-2.0重量％分散剂，10-50重量％水，3-17重量％增塑剂和5-30重量％丙烯酸类粘合剂 ，基于金属氧化物的重量。 特别是丙烯酸系粘合剂含有丙烯酸丁酯40〜70重量％，甲基丙烯酸甲酯10〜20重量％，甲基丙烯酸2-羟乙酯10〜40重量％，甲基丙烯酸2〜10重量％，玻璃化转变 温度-20℃±5℃，乳液中单体含量60％以上。 陶瓷带可通过将陶瓷浆料消泡而形成片材然后干燥来制备。

公开(公告)号：KR1020020085055A

公开(公告)日：2002-11-16

申请号：KR1020010024315

申请日：2001-05-04

Applicant: 한국과학기술연구원

Inventor： 김대준 ,  이명현 ,  박일석

IPC: C04B35/63 ,  C04B35/00

CPC classification number: C04B35/63404 ,  C04B35/10 ,  C04B35/48 ,  C04B35/63424 ,  C04B2111/00836 ,  C04B2111/00844 ,  C04B2235/3217 ,  C04B2235/3244 ,  C09J7/20

Abstract: PURPOSE: Provided is a water-based ceramic slurry using water, and polyvinyl pyrrolidone(PVP) and gelatin as solvent and a binder based on water, unlike conventional nonwater-based solvent and binder, for producing ceramic tapes. CONSTITUTION: The water-based ceramic slurry comprises the components of: metal oxide powder such as Al2O3, magnesium aluminate spinel, ZrO2, Al2O3/ZrO2 composite or spinel/ZrO2 composite; 0.01-2.0wt.% of dispersant such as polymethacrylic acid, polycarboxylic acid, ammonium polyacrylate or ether; 20-90wt.% of water; 5-20wt.% of PVP and 0.1-2.0wt.% of gelatin as a binder; 3-17wt.% of plasticizer such as triethylene glycol or polyethylene glycol. The each amount is based on the metal oxide powder and 0.3-2.0wt.%(based on the total components) surfactant is optionally added. The preparation method of ceramic tapes is as follows: mixing all components except gelatin, for a ceramic slurry with a viscosity of 1000-3000cps; defoaming by heating the slurry in boiling water(50-80deg.C); adding a gelatin solution, obtained by dissolving gelatin into water(50-80deg.C), and defoaming again; and forming the slurry into a sheet.

Abstract translation: 目的：提供一种使用水的水性陶瓷浆料，聚乙烯吡咯烷酮（PVP）和明胶作为溶剂，并且与传统的非水基溶剂和粘合剂不同，用于生产陶瓷带。 构成：水性陶瓷浆料包括：Al2O3，铝酸镁尖晶石，ZrO2，Al2O3 / ZrO2复合材料或尖晶石/ ZrO2复合材料等金属氧化物粉末; 0.01-2.0重量％的分散剂如聚甲基丙烯酸，多元羧酸，聚丙烯酸铵或醚; 20-90重量％的水; 5-20重量％的PVP和0.1-2.0重量％的明胶作为粘合剂; 3-17重量％的增塑剂如三甘醇或聚乙二醇。 每个量基于金属氧化物粉末，并且任选地加入0.3-2.0重量％（基于总组分）表面活性剂。 陶瓷带的制备方法如下：将除明胶之外的所有组分混合，制备粘度为1000-3000cps的陶瓷浆料; 通过在沸水（50-80℃）中加热浆料进行消泡; 加入明胶溶液，将明胶溶解于水（50〜80℃）中，再次脱泡; 并将浆料形成片材。

公开(公告)号：KR1019980017677A

公开(公告)日：1998-06-05

申请号：KR1019960037493

申请日：1996-08-31

Applicant: 한국과학기술연구원 ,  이명범

Inventor： 김대준 ,  이명현

IPC: A61K6/02

Abstract: 본 발명은 전도재 내관을 세라믹 시이트로부터 성형함으로써 현탁 성형법에 의해 제조되는 기존의 전도재 내관 성형공정을 단순화시키는 새로운 방법으로써, 본 발명에서는 알루미나 또는 알루미나/지르코니아 분말을 주성분으로 분산제, 결합제, 가소제, 용매 등을 첨가하여 슬러리로 제조한 다음 이를 0.1~1.0mm 두께의 세라믹 시이트로 시이트화하고 이를 50~110℃에서 15~150kgf/cm
2 의 압력으로 1차 치아 성형물을 제조하는 것임.

公开(公告)号：KR1020030079326A

公开(公告)日：2003-10-10

申请号：KR1020020018287

申请日：2002-04-03

Applicant: 한국과학기술연구원

Inventor： 김대준 ,  박일석 ,  이명현

IPC: C09J7/00

Abstract: PURPOSE: Water-based ceramic slurry is provided to prevent the harm to environment and human body, to improve the drying speed of a ceramic tape, and to perform the working process at a low viscosity. CONSTITUTION: The water-based ceramic slurry comprises a metal oxide, and 0.05 to 2.0 wt% of a dispersing agent, 10 to 50 wt% of water, 3 to 17 wt% of a plasticizer and 5 to 30 wt% of an acrylic binder, based on the weight of the metal oxide. In particular, the acrylic binder comprises 40 to 70 wt% of butyl acrylate, 10 to 20 wt% of methyl methacrylate, 10 to 40 wt% of 2-hydroxyethyl methacrylate and 2 to 10 wt% of methacrylic acid, and has a glass transition temperature of -20±5 deg.C and monomer content in emulsion of 60% or more. The ceramic tape can be produced by defoaming the ceramic slurry, forming it into a sheet and then drying.

Abstract translation: 目的：提供水性陶瓷浆料，以防止对环境和人体的伤害，提高陶瓷带的干燥速度，并以低粘度进行加工。 构成：水性陶瓷浆料含有金属氧化物，0.05〜2.0重量％的分散剂，10〜50重量％的水，3〜17重量％的增塑剂和5〜30重量％的丙烯酸类粘合剂 ，基于金属氧化物的重量。 特别地，丙烯酸类粘合剂包含40〜70重量％的丙烯酸丁酯，10〜20重量％的甲基丙烯酸甲酯，10〜40重量％的甲基丙烯酸2-羟乙酯和2〜10重量％的甲基丙烯酸，并且具有玻璃化转变 温度为-20±5℃，乳液中单体含量为60％以上。 陶瓷带可以通过使陶瓷浆料消泡，将其形成片材然后干燥而制成。

公开(公告)号：KR1020030046531A

公开(公告)日：2003-06-18

申请号：KR1020010070509

申请日：2001-11-13

Applicant: 한국과학기술연구원

Inventor： 김대준 ,  박일석 ,  이명현

IPC: C04B35/634 ,  C09J7/00

CPC classification number: C04B35/63416 ,  C04B35/10 ,  C04B35/48 ,  C04B35/63424 ,  C04B35/636 ,  C04B2111/00836 ,  C04B2111/00844 ,  C04B2235/3217 ,  C04B2235/3244 ,  C09J7/20

Abstract: PURPOSE: Aqueous ceramic slurry and a method for preparing an aqueous ceramic tape using the slurry are provided, wherein the slurry contains no nonaqueous binder for preventing the danger of explosion, the environmental pollution and the problem of toxicity. CONSTITUTION: The aqueous ceramic slurry comprises metal oxide; 0.05-2.0 wt% of a dispersant, 10-50 wt% of water, 3-17 wt% of a plasticizer and 5-30 wt% of a PVP (poly(vinyl pyrrolidone)) binder based on the weight of the metal oxide; 0.5-30 wt% of a PVA (poly(vinyl alcohol)) binder based on the weight of the PVP binder; and optionally 0.1-2.0 wt% of gelatin as a binder based on the weight of the metal oxide. Preferably the metal oxide is alumina, spinel aluminate, zirconia or their mixtures; the dispersant is poly(methacrylic acid), poly(carboxylic acid), ammonium polyacrylate salt or ether; and the plasticizer is triethylene glycol, polyethylene glycol or their mixture.

Abstract translation: 目的：提供水性陶瓷浆料和使用该浆料制备水性陶瓷带的方法，其中，浆料不含非水性粘合剂，用于防止爆炸危险，环境污染和毒性问题。 构成：含水陶瓷浆料包含金属氧化物; 0.05-2.0重量％的分散剂，10-50重量％的水，3-17重量％的增塑剂和5-30重量％的PVP（聚（乙烯基吡咯烷酮））粘合剂，基于金属氧化物的重量 ; 基于PVP粘合剂的重量的0.5-30重量％的PVA（聚（乙烯醇））粘合剂; 和任选的0.1-2.0重量％的基于金属氧化物重量的明胶作为粘合剂。 优选地，金属氧化物是氧化铝，尖晶石铝酸盐，氧化锆或它们的混合物; 分散剂是聚（甲基丙烯酸），聚（羧酸），聚丙烯酸铵盐或醚; 增塑剂是三甘醇，聚乙二醇或其混合物。

公开(公告)号：KR100444746B1

公开(公告)日：2004-08-16

申请号：KR1020010070509

申请日：2001-11-13

Applicant: 한국과학기술연구원

Inventor： 김대준 ,  박일석 ,  이명현

IPC: C04B35/634 ,  C09J7/00

Abstract: PURPOSE: Aqueous ceramic slurry and a method for preparing an aqueous ceramic tape using the slurry are provided, wherein the slurry contains no nonaqueous binder for preventing the danger of explosion, the environmental pollution and the problem of toxicity. CONSTITUTION: The aqueous ceramic slurry comprises metal oxide; 0.05-2.0 wt% of a dispersant, 10-50 wt% of water, 3-17 wt% of a plasticizer and 5-30 wt% of a PVP (poly(vinyl pyrrolidone)) binder based on the weight of the metal oxide; 0.5-30 wt% of a PVA (poly(vinyl alcohol)) binder based on the weight of the PVP binder; and optionally 0.1-2.0 wt% of gelatin as a binder based on the weight of the metal oxide. Preferably the metal oxide is alumina, spinel aluminate, zirconia or their mixtures; the dispersant is poly(methacrylic acid), poly(carboxylic acid), ammonium polyacrylate salt or ether; and the plasticizer is triethylene glycol, polyethylene glycol or their mixture.

Abstract translation: 目的：提供一种含水陶瓷浆料和使用该浆料制备含水陶瓷带的方法，其中该浆料不含非水粘合剂以防止爆炸危险，环境污染和毒性问题。 组成：含水陶瓷浆料包含金属氧化物; 基于金属氧化物的重量，0.05-2.0重量％的分散剂，10-50重量％的水，3-17重量％的增塑剂和5-30重量％的PVP（聚（乙烯吡咯烷酮））粘合剂 ; 基于PVP粘合剂的重量，0.5-30重量％的PVA（聚（乙烯醇））粘合剂; 和任选的0.1-2.0重量％的明胶作为基于金属氧化物重量的粘合剂。 优选金属氧化物是氧化铝，尖晶石铝酸盐，氧化锆或它们的混合物; 分散剂为聚（甲基丙烯酸），聚（羧酸），聚丙烯酸铵盐或醚; 增塑剂是三甘醇，聚乙二醇或它们的混合物。

公开(公告)号：KR100420930B1

公开(公告)日：2004-03-02

申请号：KR1020010024315

申请日：2001-05-04

Applicant: 한국과학기술연구원

Inventor： 김대준 ,  이명현 ,  박일석

IPC: C04B35/63 ,  C04B35/00

Abstract: PURPOSE: Provided is a water-based ceramic slurry using water, and polyvinyl pyrrolidone(PVP) and gelatin as solvent and a binder based on water, unlike conventional nonwater-based solvent and binder, for producing ceramic tapes. CONSTITUTION: The water-based ceramic slurry comprises the components of: metal oxide powder such as Al2O3, magnesium aluminate spinel, ZrO2, Al2O3/ZrO2 composite or spinel/ZrO2 composite; 0.01-2.0wt.% of dispersant such as polymethacrylic acid, polycarboxylic acid, ammonium polyacrylate or ether; 20-90wt.% of water; 5-20wt.% of PVP and 0.1-2.0wt.% of gelatin as a binder; 3-17wt.% of plasticizer such as triethylene glycol or polyethylene glycol. The each amount is based on the metal oxide powder and 0.3-2.0wt.%(based on the total components) surfactant is optionally added. The preparation method of ceramic tapes is as follows: mixing all components except gelatin, for a ceramic slurry with a viscosity of 1000-3000cps; defoaming by heating the slurry in boiling water(50-80deg.C); adding a gelatin solution, obtained by dissolving gelatin into water(50-80deg.C), and defoaming again; and forming the slurry into a sheet.

Abstract translation: 目的：提供一种使用水，聚乙烯吡咯烷酮（PVP）和明胶作为溶剂和基于水的粘合剂的水基陶瓷浆料，与传统的非水基溶剂和粘合剂不同，用于生产陶瓷带。 组成：水基陶瓷浆料由以下组分组成：金属氧化物粉末，如Al2O3，铝酸镁尖晶石，ZrO2，Al2O3 / ZrO2复合物或尖晶石/ ZrO2复合物; 0.01-2.0重量％的分散剂如聚甲基丙烯酸，多元羧酸，聚丙烯酸铵或醚; 20-90重量％的水; 5-20重量％的PVP和0.1-2.0重量％的作为粘合剂的明胶; 3-17重量％的增塑剂如三甘醇或聚乙二醇。 每种量基于金属氧化物粉末，并且任选地添加0.3-2.0重量％（基于总组分）表面活性剂。 陶瓷带的制备方法如下：将除明胶外的所有组分混合，制备粘度为1000-3000cps的陶瓷浆料; 通过在沸水（50-80℃）中加热浆料来消泡; 加入将明胶溶于水（50-80℃）得到的明胶溶液，再次消泡; 并将浆料成形为片材。

公开(公告)号：KR100203378B1

公开(公告)日：1999-06-15

申请号：KR1019960037493

申请日：1996-08-31

Applicant: 한국과학기술연구원 ,  이명범

Inventor： 김대준 ,  이명현

IPC: A61K6/02

CPC classification number: C04B35/803 ,  A61C13/0003 ,  A61K6/0008 ,  A61K6/0215 ,  A61K6/024 ,  A61K6/025 ,  A61K6/0255 ,  A61K6/083 ,  C04B35/111 ,  C04B35/119 ,  C04B35/443 ,  C04B35/62218 ,  C08L29/14

Abstract: An improved method for simplifying a slip casting applied conventional all ceramic core molding process by molding an all ceramic core from a ceramic sheet. In the method, there is prepared a slurry which consists mainly of alumina, spinel, alumina/zirconia powder, by adding thereto a dispersant, a binding agent, a plasticizer, a solvent and the like. The slurry is formed into a sheet having a thickness of 0.1mm to 1.0mm for thereby fabricating a tooth molding mass by using a heat hydrostatic pressing at a pressure of 15 Kgf/cm to 150 Kgf/cm at a temperature of 50 DEG C to 110 DEG C, with slurry composition for fabricating an all ceramic jacket crown applicable to an artificial crown comprises.