-
公开(公告)号：KR1020010001036A
公开(公告)日：2001-01-05
申请号：KR1019990020003
申请日：1999-06-01
Applicant: 한국화학연구원
IPC: C01B33/14
Abstract: PURPOSE: A preparation method of high concentration polysilicate microgel using Si-contained water glass as a starting material is provided. The obtained polysilicate microgel adapted to the microparticulate retention system as an anionic microparticle increases the retention of microparticle contained in a paper stock and removes the water easily in a process of paper making. Accordingly, this method improves economic efficiency and productivity of paper making. CONSTITUTION: The preparation method comprises the steps of: preparing sodium silicate by adding water to Si-containing water glass composed of a molar ratio SiO2/Na2O of 3.2-3.25 and 1-30wt.% of silica; filtering through a column filled with a strong acidic cation exchange resin, resulting in pH9-10 of active polysilicate solution; adding 0.1-2.296pts.wt. of sodium sulfate(based on 100pts.wt. of active polysilicate solution) as a gelling promoter; mixing(100-1000rpm) for 5-20min. and aging at room temperature.
Abstract translation: 目的：提供使用含Si水玻璃作为起始原料的高浓度聚硅酸盐微凝胶的制备方法。 所得到的适于作为阴离子微粒的微粒保留体系的聚硅酸盐微凝胶增加了纸料中所含的微粒的保留性，并且在造纸过程中容易除去水分。 因此，该方法提高了造纸的经济效率和生产率。 构成：制备方法包括以下步骤：通过将水添加到由SiO 2 / Na 2 O的摩尔比为3.2-3.25和氧化硅的重量比为30重量％的含Si水玻璃中制备硅酸钠; 通过填充有强酸性阳离子交换树脂的柱过滤，得到pH9-10的活性聚硅酸盐溶液; 加0.1-2.296pts.wt。 的硫酸钠（基于100pts.wt。的活性聚硅酸盐溶液）作为胶凝促进剂; 混合（100-1000rpm）5-20min。 并在室温下老化。
-
公开(公告)号：KR100252586B1
公开(公告)日：2000-04-15
申请号：KR1019980011761
申请日：1998-04-03
Applicant: 한국화학연구원
IPC: D21C5/02
CPC classification number: Y02W30/648
Abstract: PURPOSE: A process for reclaiming pulp by discoloring mixed office-paper-waste material to improve whiteness is provided, which is suitable for conventional alkaline deinking processes and can remarkably reduce the cost of production. CONSTITUTION: In manufacturing toilet paper, wood-free paper or wood-free coating base paper using office-paper-waste material as raw material, the reclaiming process comprises the steps of: carrying out reduction bleaching of pulped and dehydrated office-paper-waste material at pH 10.5 to 12.0 by adding sodium hyposulfite in the first stage; carrying out oxidation bleaching at pH 9.5 to 12.0 by adding sodium hypochlorite in the second stage.
Abstract translation: 目的：提供了通过褪色混合办公纸废料回收纸浆以改善白度的方法，其适用于常规碱性脱墨工艺，并且可以显着降低生产成本。 规定：在使用办公废纸作为原料制造卫生纸，无木纸或无木纸涂料原纸时，回收过程包括以下步骤：进行纸浆和脱水纸张废纸的还原漂白 在第一阶段通过加入次硫酸钠在pH 10.5至12.0的物质; 在第二阶段通过加入次氯酸钠进行pH9.5至12.0的氧化漂白。
-
公开(公告)号：KR100252464B1
公开(公告)日：2000-04-15
申请号：KR1019980010044
申请日：1998-03-24
Applicant: 한국화학연구원
CPC classification number: Y02W30/648
Abstract: PURPOSE: A method for recycling old corrugated container by treating old corrugated container using amylase-based enzyme is provided, thereby accelerating dehydration of reclaimed paper material capable of improving quality and productivity of corrugate board. CONSTITUTION: In a method for recycling old corrugated container, 0.01 to 0.1% by weight of amylase-based enzyme based on the total weight of dry old corrugated container is introduced into waste paper material. The amylase-based enzyme is α -amylase-based enzyme obtained from Bacillus licheniformis or Bacillus subtilis alone or mixtures thereof in a weight ratio of 1:9 to 9:1.
Abstract translation: 目的：提供一种通过使用淀粉酶进行处理旧瓦楞纸箱回收旧瓦楞纸箱的方法，从而加快了能够提高波纹板质量和生产率的回收纸材料的脱水。 构成：在回收旧的波纹状容器的方法中，将0.01〜0.1重量％的基于干旧瓦楞纸箱的总重量的基于淀粉酶的酶引入废纸材料中。 基于淀粉酶的酶是从地衣芽孢杆菌或枯草芽孢杆菌单独获得的α-淀粉酶，其重量比为1:9至9:1的混合物。
-
公开(公告)号：KR1020000002723A
公开(公告)日：2000-01-15
申请号：KR1019980023622
申请日：1998-06-23
Applicant: 한국화학연구원
IPC: C12N9/42
CPC classification number: C12N9/2437 , C12N9/2477 , C12N9/248 , C12N9/96 , C12Y302/01004
Abstract: PURPOSE: A modified enzyme is provided to improve the titer of an enzyme and to maintain the stability of the titer to the change of a temperature and a pH value by modifying the proper enzyme with the chemical covalent bond of the OH functional group. CONSTITUTION: A modified enzyme is prepared by chemically covalent binding (-OH) of cellulase or hemicellulase to (-NH2) of polyoxyethylene aliphatic alcohol ester of the formula (I). In the formula (I), R is alkyl group of C14-18 and n is an integer of 3-14.
Abstract translation: 目的：提供一种修饰酶，以提高酶的滴度，并通过用OH官能团的化学共价键修饰适当的酶，保持滴定度对温度和pH值变化的稳定性。 构成：通过将式（I）的聚氧乙烯脂肪醇酯的纤维素酶或半纤维素酶与（-NH 2）的化学共价结合（-OH）制备修饰的酶。 在式（I）中，R是C14-18的烷基，n是3-14的整数。
-
公开(公告)号：KR1019960015748B1
公开(公告)日：1996-11-20
申请号：KR1019930013673
申请日：1993-07-20
Applicant: 한국화학연구원
IPC: D21H17/20
CPC classification number: D21H21/10
Abstract: This invention relates to useful retention agent for paper manufacturing, which increases the retentivity of micro components and includes cationic multiarmed star-like polymer having the formula: (D)y-(A)-[-B-(CH2)n-(E)p-(F)q- x. In the formula, R1-R14 and Ra-Rd are hydrogen or alkyl group, X is O-SO2-OCH3 or Cl-, x is an integer 3-24, y is an integer 0-21, n is an integer 3-6, p is an integer 300-4,000 and q is an integer 0-4,000.
Abstract translation: 本发明涉及有用的造纸保留剂，其增加了微量组分的保持性，并且包括具有下式的阳离子多臂星形聚合物：（D）y-（A） - [-B-（CH2）n-（E ）p-（F）q- x。 在式中，R 1 -R 14和R A -R d是氢或烷基，X是O-SO 2 -OCH 3或Cl - ，x是整数3-24，y是整数0-21，n是整数3- 6，p为整数300-4,000，q为0-4,000的整数。
-
Patent Agency Ranking
公开(公告)号：KR1019950029465A
公开(公告)日：1995-11-22
申请号：KR1019940007591
申请日：1994-04-12
Applicant: 한국화학연구원
Abstract: (목적) 종이내 충전물의 함유량을 높이고 스코트 내부결합강도를 증가시키는 종이의 제조방법을 제공하는데 있다.
(구성)기존의 종이의 제조방법에 카르복시메틸셀룰로오스의 활성도가 3,600U/㎖ 이상인 셀룰레이스계 효소로서 트리코더마 롱지브라치아텀(Trichoderma Longibrachiatum)을 목재펄프의 중량에 대해 0.01～0.2중량% 첨가하여서 종이내 충전물의 함량을 높이고 스코트 내부결합강도를 증가시키는 효과가 있다.-
公开(公告)号：KR1019950003561A
公开(公告)日：1995-02-17
申请号：KR1019930013673
申请日：1993-07-20
Applicant: 한국화학연구원
IPC: D21H17/20
Abstract: 본 발명은 제지용 보류향상제에 관한 것으로서, 더욱 상세하게는 한개의 출발점에 여러가닥의 고분자 연쇄가 연결되어 있음으로써 미세성분의 보류를 향상시킬 수 있는 다음 일반식(Ⅰ)의 양이온성 별모양의 고분자 전해질(Cationic multi-armed star-like polymers, 이하 CMS-PAM이라 함)을 유효성분으로 하는 제지용 보류향상제에 관한 것이다.
(D)
y -(A)-[-B-(CH
2 )
n -(E)
p -(F)
q -]
x - (Ⅰ)
상기식에서, A는 C(CH
2 )
4 -, -(CH
2 )
3 CCH
2 OCH
2 C(CH
2 )
3 -, -(CH
2 )
3 CCH
2 OCH
2 C(CH
2 )
2 CH
2 OCH
2 C(CH
2 )
3 -, N(CH
2 )
3 -, Si(CH
2 )
4 -,
,
B는 -O-, -COO-, -NH-CO, D는 -OH, -NH
2 , E는
-CH
2 -
-CH
2 -CR
12 R
13 -NR
14 -, F는 CH
2 -
, R
1 ~R
14 는 수소 또는 알킬기, R
a ~R
d 는 수소 또는 알킬기, X
- 는
, 또는 Cl
- , x는 3~24의 정수이고, y는 0~21의 정수이고, n은 3~6의 정수이고, p는 300~4,000의 정수이고, q는 0~1,000의 정수이다.-
-
-
公开(公告)号：KR1019920010648B1
公开(公告)日：1992-12-12
申请号：KR1019890016111
申请日：1989-11-07
Applicant: 한국화학연구원
IPC: D21C5/02
CPC classification number: Y02W30/646 , Y02W30/648
Abstract: Regenerating process of waste white paper (e.g. no-carbon paper, copying paper, thermal and pressure sensitive paper comprises (1) beating waste paper to maintain the pump composition of waste paper to 8-15 % at 40-80 deg.C, (2) adding a natural polysaccharide and beating promoter into the beated pulp and (3) removing ink from pulp slurry by flotation treatment method. The polysaccharide is selected from algin, xylan and starch, and the foaming agent is para-nonyl phenol ethoxylate-based surfactant.
Abstract translation: 废纸白纸（例如无碳纸，复印纸，热压敏纸等）的再生工序包括：（1）在40-80℃下，将废纸的泵组成保持在8〜15％ 2）将天然多糖和打浆促进剂加入到打浆纸浆中，（3）通过浮选处理方法从纸浆中除去油墨，多糖选自藻酸盐，木聚糖和淀粉，发泡剂为对 - 壬基苯酚乙氧基化物 表面活性剂。
-
-
-
-
-
-
-
-
-
Search Results
54
records
(took 0.024 seconds)
