PRODUCTION OF POWDERED RUBBER

PURPOSE:To obtain the titled gel-free rubber without causing interparticle sticking and flocculation during the storage, by adding an anionic surfactant to rubber latex and incorporating dropwise the resulting mixture in an alkaline earth metal chloride solution followed by adding inorganic filler u...

Full description

Saved in:
Bibliographic Details
Main Authors KANESHIGE YOSUKE, HAYASHI TAKAO, ISHIDA YOSHIAKI, ARIYOSHI TAKASHI
Format Patent
LanguageEnglish
Published 21.10.1987
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To obtain the titled gel-free rubber without causing interparticle sticking and flocculation during the storage, by adding an anionic surfactant to rubber latex and incorporating dropwise the resulting mixture in an alkaline earth metal chloride solution followed by adding inorganic filler ultrafine particles in the form of a colloidal solution to the system. CONSTITUTION:A mixture of (A) anionic or nonionic rubber latex (pref. of polychloroprene rubber) and (B) 1-30pts.wt. per 100pts.wt. of the component A, of an anionic surfactant (pref. sodium lauryl alcohol sulfuric acid ester) is incorporated dropwise in an aqueous solution containing (C) 1-20pts.wt. per 100pts.wt. of the component A, of an alkaline earth metal chloride or nitrate (pref. CaCl2) to separate a rubber in a powdery form from the component A. The resultant rubber is incorporated with (D) 0.5-50pts.wt. of inorganic filler ultrafine particles in the form of a colloidal solution (e.g. of silica), thus obtaining the objective powdered rubber.
Bibliography:Application Number: JP19860082196