Emulsion polymerization method for a brominated styrene
AssigneeTeijin Chemicals, Ltd.
InventorAkihiro Mukai
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Abstract
An emulsion polymerization method for a brominated styrene is provided in which upon emulsion polymerizing a brominated styrene, an organic solvent which dissolves the brominated styrene and is sparingly soluble in water is added in an amount of 1 to 500 parts by weight per 100 parts by weight of the brominated styrene. According to this method, brominated polystyrenes can be produced which have acceptable hues and excellent physical properties and smell no offensive odor during the step of molding.
Claims22
A method for the emulsion polymerization of brominated styrene which comprises the steps of charging a reaction vessel with a mixture consisting essentially of:
- a brominated styrene,
- an organic solvent which dissolves said brominated styrene and is sparingly soluble in water, in an amount of 1 to 500 parts by weight per 100 parts by weight of said brominated styrene,
- and carrying out the emulsion polymerization reaction.
A method for the emulsion polymerization of brominated styrene which comprises the steps of charging a reaction vessel with:
- a brominated styrene,
- a hydrocarbon solvent which dissolves said brominated styrene and is sparingly soluble in water, in an amount of 1 to 500 parts by weight per 100 parts by weight of said brominated styrene, and
- carrying out the emulsion polymerization reaction.
A method for the emulsion polymerization of brominated styrene which comprises the steps of charging a reaction vessel with:
- a brominated styrene,
- a hydrocarbon solvent which dissolves said brominated styrene and is sparingly soluble in water, in an amount of about 20 to 200 parts by weight per 100 parts by weight of said brominated styrene, and
- carrying out the emulsion polymerization reaction.
A method for the emulsion polymerization of brominated styrene which consists essentially of the steps of charging a reaction vessel with:
- a brominated styrene,
- an organic solvent which dissolves said brominated styrene and is sparingly soluble in water, in an amount of 1 to 500 parts by weight per 100 parts by weight of said brominated styrene,
- carrying out the emulsion polymerization reaction, and recovering brominated polystyrene.
Dependencies are inferred from the claim text.