EMULSIFIER FOR EMULSION POLYMERIZATION

PROBLEM TO BE SOLVED: To obtain the subject emulsifier capable of giving a low-viscosity emulsion of high stability with low production of flocculates during the polymerization, by controlling the content of a polyalkylene glycol in the nonionic surfactant within a specific range. SOLUTION: This emu...

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Bibliographic Details
Main Authors HIRAKOUCHI YOSHIE, AKIYAMA FUMITAKA
Format Patent
LanguageEnglish
Published 27.01.1998
Edition6
Subjects
ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
DYES
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PROBLEM TO BE SOLVED: To obtain the subject emulsifier capable of giving a low-viscosity emulsion of high stability with low production of flocculates during the polymerization, by controlling the content of a polyalkylene glycol in the nonionic surfactant within a specific range. SOLUTION: This emulsifier comprises 99.0-95.0wt.% of a 2-4C alkylene oxide 3-10mol adduct to an 8-22C higher alcohol or alkylphenol and 1.0-5.0wt.% of a polyalkylene glycol. The alkylene oxide is typically ethylene oxide, its number of moles added being pref. 10-60 on average. The polyalkylene glycol is a polymer of a 2-4C alkylene oxide, being typically polyethylene glycol. Its preferable content in this emulsifier is 1-3wt.% and its weight-average molecular weight is pref. 1,000-4,000.
Bibliography:Application Number: JP19960181761