WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2004002917) CEMENT ADMIXTURE HAVING SUPERIOR WATER-REDUCING PROPERTIES AND METHOD FOR PREPARING THE SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/002917    International Application No.:    PCT/KR2003/001257
Publication Date: 08.01.2004 International Filing Date: 26.06.2003
IPC:
C04B 24/16 (2006.01), C04B 24/26 (2006.01), C08G 65/26 (2006.01), C08L 71/02 (2006.01)
Applicants: LG CHEM, LTD. [KR/KR]; 20, Yoido-dong, Youngdungpo-gu, Seoul 150-010 (KR) (For All Designated States Except US).
CHOI, Byeong-Gil [KR/KR]; (KR) (For US Only).
KANG, Dong-Kyu [KR/KR]; (KR) (For US Only).
PARK, Kwang-Myung [KR/KR]; (KR) (For US Only).
SONG, Jong-Keun [KR/KR]; (KR) (For US Only).
LEE, Chan-Young [KR/KR]; (KR) (For US Only).
SONG, Hee-Bong [KR/KR]; (KR) (For US Only).
LEE, Chang-Yeob [KR/KR]; (KR) (For US Only).
NO, Dong-Duck [KR/KR]; (KR) (For US Only).
KIM, Dae-Joong [KR/KR]; (KR) (For US Only)
Inventors: CHOI, Byeong-Gil; (KR).
KANG, Dong-Kyu; (KR).
PARK, Kwang-Myung; (KR).
SONG, Jong-Keun; (KR).
LEE, Chan-Young; (KR).
SONG, Hee-Bong; (KR).
LEE, Chang-Yeob; (KR).
NO, Dong-Duck; (KR).
KIM, Dae-Joong; (KR)
Agent: YOU ME PATENT & LAW FIRM; Seolim Bldg., 649-10, Yoksam-dong, Kangnam-ku, Seoul 135-080 (KR)
Priority Data:
10-2002-0037083 28.06.2002 KR
Title (EN) CEMENT ADMIXTURE HAVING SUPERIOR WATER-REDUCING PROPERTIES AND METHOD FOR PREPARING THE SAME
(FR) ADJUVANT POUR CIMENT REDUISANT FORTEMENT L'APPORT EN EAU ET SON PROCEDE DE PREPARATION
Abstract: front page image
(EN)The present invention provides a cement admixture that comprises at least one of a carboxylic acid based copolymer comprising a reactive surfactant as a monomer or a copolymer salt obtained by neutralizing the copolymer with an alkaline substance, a method for preparing the same, and a cement composition comprising the same.The cement admixture of the present invention increases composition fluidity even at a high water-reducing formulation by improving dispersibility of cement particles, prevents a decrease of fluidity as the function of time, and offers good workability by supplying an adequate amount of air flow continuously.
(FR)L'invention porte sur un adjuvant pour ciment comportant au moins un copolymère à base d'acide carboxylique comprenant comme monomère un tensio-actif réactif, et un sel de copolymère obtenu par neutralisation du copolymère par une substance alcaline, sur son procédé de préparation, et sur une composition de ciment le comprenant. Ledit adjuvant: accroît la fluidité de la composition même en cas de forte réduction de l'apport en eau en améliorant la dispersibilité des particules de ciment, empêche la baisse de fluidité dans le temps, et confère une bonne ouvrabilité en fournissant continuellement la quantité d'air voulue.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, KE, KG, KP, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)