Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 7, 2010
Patent Application Number
10581685
Date Filed
December 1, 2004
Patent Primary Examiner
Patent abstract
The invention discloses deagglomerated barium sulphate which has an average primary particle size of less than 0.5 μm and is coated with a dispersant. The dispersant has preferably reactive groups which are able to interact with the surface of the barium sulphate; particularly preferred dispersants are those which are able to endow the barium sulphate with a hydrophilic surface and have reactive groups for coupling to or into polymers. Also disclosed is a plastics premix comprising the deagglomerated, coated barium sulphate.
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