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RU93005079A - COATED INORGANIC POWDER, METHOD FOR ITS OBTAINING AND COATING ON ITS BASIS - Google Patents

COATED INORGANIC POWDER, METHOD FOR ITS OBTAINING AND COATING ON ITS BASIS

Info

Publication number
RU93005079A
RU93005079A RU93005079/04A RU93005079A RU93005079A RU 93005079 A RU93005079 A RU 93005079A RU 93005079/04 A RU93005079/04 A RU 93005079/04A RU 93005079 A RU93005079 A RU 93005079A RU 93005079 A RU93005079 A RU 93005079A
Authority
RU
Russia
Prior art keywords
particles
isoelectric point
coating
obtaining
basis
Prior art date
Application number
RU93005079/04A
Other languages
Russian (ru)
Inventor
Роб Джон
Дэселлес Гаи
Rob Dzhon
Dehselles Gai
Original Assignee
Тиоксид Груп Сервисиз Лимитед
Tioksid Grup Servisiz Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Тиоксид Груп Сервисиз Лимитед, Tioksid Grup Servisiz Limited filed Critical Тиоксид Груп Сервисиз Лимитед
Publication of RU93005079A publication Critical patent/RU93005079A/en

Links

Claims (1)

Изобретение касается нового неорганического неслипающегося порошка из частиц, покрытых органическим полимером. Этот продукт может быть получен посредством диспергирования в воде неорганических частиц при рН выше их изоэлектрической точки в присутствии полимерной полиосновной кислоты в качестве диспергирующего агента с получением частиц, имеющих модифицированную изоэлектрическую точку. рН дисперсии затем доводят до значения ниже 9, но выше модифицированной изоэлектрической точки, и этилено-ненасыщенный мономер полимеризуют в присутствии этой дисперсии так, чтобы покрыть неорганические частицы полимеризованным мономером. Также заявлен способ образования частиц. Частицы, полученные этим способом, равномерно и дискретно покрыты органическим полимерным покрытием и могут применяться во многих областях, где желательно иметь неорганические частицы, диспергированные в органической среде, такой как краски, жидкие красители (чернила) и пластиковые композиции.The invention relates to a new inorganic non-adherent powder of particles coated with an organic polymer. This product can be obtained by dispersing inorganic particles in water at a pH above their isoelectric point in the presence of a polymeric polybasic acid as a dispersing agent to produce particles having a modified isoelectric point. The pH of the dispersion is then adjusted to below 9, but above the modified isoelectric point, and the ethylenically unsaturated monomer is polymerized in the presence of this dispersion so as to coat the inorganic particles with a polymerized monomer. Also declared a method of particle formation. The particles obtained by this method are uniformly and discretely coated with an organic polymer coating and can be used in many areas where it is desirable to have inorganic particles dispersed in an organic medium, such as paints, liquid dyes (inks) and plastic compositions.
RU93005079/04A 1992-05-29 1993-05-28 COATED INORGANIC POWDER, METHOD FOR ITS OBTAINING AND COATING ON ITS BASIS RU93005079A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9211420.6 1992-05-29
GB9215599.3 1992-07-22

Publications (1)

Publication Number Publication Date
RU93005079A true RU93005079A (en) 1996-08-10

Family

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