公开(公告)号：JPH0412038A

公开(公告)日：1992-01-16

申请号：JP11377090

申请日：1990-04-27

Applicant: KAO CORP

Inventor： YAMATO FUJISAKURA ,  FUJITA SHUICHI ,  IZUMI TATSUO ,  YADOKORO YOSHIAKI

IPC: C04B28/04 ,  C04B24/22 ,  C08G8/00 ,  C08G8/18

Abstract: PURPOSE:To eliminate occurrence of deposition and precipitation of crystals in storage at low temperatures and facilitate handling by containing K salt and Na salt of phenolsulfonic acid adduct or condensate with formaldehyde in a specific proportion. CONSTITUTION:The aforementioned dispersant composition contains an adduct or condensate of phenolsulfonic acid in which sulfonic acid group containing the acid radical thereof forming Na salt or K salt is introduced thereinto with formaldehyde and the state thereof is an aqueous solution. The above-mentioned composition is obtained by neutralizing the sulfonic acid group in the above- mentioned molecule with a neutralizing agent composed of NaOH/KOH at (1/0.2)-(1/5) molar ratio.

公开(公告)号：JPS6438207A

公开(公告)日：1989-02-08

申请号：JP19405687

申请日：1987-08-03

Applicant: NIPPON MINING CO ,  KAO CORP

Inventor： WATABE KAGENOBU ,  SHIMOMA YUETSU ,  YAMATO FUJISAKURA ,  KISHIMOTO KOJI

IPC: B28B7/38

Abstract: PURPOSE:To obtain a concrete release agent having good stability almost generating no precipitation even during storage at temp. almost equal to room temp. and easily re-dissolved by heating even if precipitation is generated, in a concrete release agent composed of a mineral oil type solvent having cobalt soap compounded therewith, by further compounding a specific imidazoline compound. CONSTITUTION:A concrete release agent is prepared by further compounding an imidazoline compound represented by general formula (wherein R is a 7-19C alkyl group) to a composition wherein cobalt soap is added to and mixed with a mineral oil type solvent. In the imidazoline compound, one whose alkyl group shown by R has 6 or less carbon atoms is difficult to synthesize and, when the number of carbon atoms of the alkyl group exceed 19, it is not pref. because the dissolving stability of the release agent to mineral oil is lowered. The imidazoline compound is used alone or in a mixed form of two or more kinds of ones. The compounding ratio of the imidazoline compound may be 0.1-0.5wt.% when 0.1-1wt.% soap is contained and 0.4-1wt.% when 1-3wt.% soap is contained.