The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 1978
Filed:
Aug. 13, 1976
Alexei Alexeevich Chuiko, Kiev, SU;
Valentin Anatolievich Tertykh, Kiev, SU;
Nikolai Vasilievich Khaber, Kalush, Ivano-Frankovskoi oblasti, SU;
Elena Alexandrovna Chuiko, Kiev, SU;
Other;
Abstract
A method of producing aminated silica compounds, characterized in that starting silica is heated at a temperature of 200.degree.-500.degree. C for several hours in the absence of oxygen and moisture, then cooled down to a temperature of 100.degree.-250.degree. C and treated at this temperature with an amino alcohol. The resulting product is characterized in containing grafted amino groups, their concentration being much higher than that of free hydroxyl groups on the surface of the starting silicas. This feature enables to improve the properties of aminated silica compounds and, particularly, to increase adsorption capacity and activity thereof when said compounds are used as polymer fillers.