- RESIN FOR ION COLLISION DETECTION AND METHOD FOR MANUFACTURING THEREOF
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The present invention relates to a method for preparing a resin for preventing ion collision. The method according to the present invention comprises the steps of: introducing 150 g of purified water and 1.2 mol of a polyhydric alcohol to a flask and heating them to 65anddeg;C, and introducing 0.5-3.5 mol of boron trichloride etherate as a catalyst in such a manner that it may flow down through the wall of the flask to provide a first solution; warming the first solution to 80anddeg;C, maintaining the temperature and adding 3.6 mol of epichlorohydrine constantly dropwise thereto for 90 minutes to provide a second solution, followed by agitation for 60 minutes; cooling the second solution to 55-60anddeg;C and introducing 0.8-2.0 mol of any one selected from primary and secondary amines and ammonia to provide a third solution; warming the third solution to 90anddeg;C, maintaining the temperature, agitating the third solution for 60 minutes, cooling the third solution to 60-65anddeg;C, maintaining the temperature and agitating the third solution for 6 hours to obtain a polymerizate.(AA) Mix fluorescent dye and cationic resin(BB) Mix mixed fluorescent dye composition and catinoic resinCOPYRIGHT KIPO 2017
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Paragraph 0084-0095
(2017/11/15)
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- A kind of six sulphonic acid liquid fluorescent whitening agent and its preparation method and application
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The invention discloses a hexasulfonic acid liquid fluorescent whitening agent, a preparation method and applications thereof. The preparation method comprises the following steps: making cyanuric chloride carry out condensation reactions with 2,5-disulfonic acid aniline for one hour at a temperature of 0 to 15 DEG C so as to obtain the primary condensation product, wherein the pH value of the reaction system is controlled at 6 to 7; making the primary condensation product carry out condensation reactions with 4,4'-diaminodistyryl-2,2'-disulfonic acid for one hour at a temperature of 30 to 45 DEG C so as to obtain the secondary condensation product, wherein the pH value of the reaction system is controlled at 6.8 to 7.5; and finally making the secondary condensation product carry out reactions with diethanolamine for 3.5 hours at a temperature of 90 to 98 DEG C so as to obtain the target product, wherein the pH value of the reaction system is controlled at 8 to 9. The fluorescent strength of the provided hexasulfonic acid liquid fluorescent whitening agent is prominently improved, the water solubility is good, the paper processed by the whitening agent has a high whiteness, a transparent appearance and good stability at a room temperature, and moreover the paper can be stored for a long time, is convenient to use, and is nontoxic and corrosion-free during the transportation process.
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Paragraph 0032; 0033; 0038; 0039
(2018/02/04)
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- OPTICAL BRIGHTENING AGENTS FOR HIGH QUALITY INK-JET PRINTING
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The instant invention relates to mixtures of stilbene compounds which provide superior fluorescent whitening effects when applied to the surface of ink-jet papers.
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Paragraph 0076
(2016/07/27)
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