The method being dried polymeric material

China Patent

PATENT NO 104603182
APP PUB NO CN-104603182-A
SERIAL NO

201380042356

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Abstract

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The present invention relates to be dried moist polymeric material with the method obtaining the polymeric material being dried, it comprises following step: by the polymeric material of described humidity and the aqueous solution of carbohydrate to provide the mixture of moist polymeric material and carbohydrate；The polymeric material of heating and/or filtration humidity and the mixture of carbohydrate remove a certain amount of volatile matter and have volatile content VC to obtainPre-driedPre-dried polymeric material (pre-drying step)；Make pre-dried material flow remove a certain amount of volatile matter further in fluid bed, to obtain, there is volatile content VCIt is driedBe dried polymeric material (fluid bed drying step)；And reclaim from described fluid bed and collect dry polymeric material；Wherein VCPre-driedHigher than VCIt is dried, the polymeric material of described humidity comprises at least one polymeric material, and described polymeric material comprises the fluorine being forever combined with described polymeric material.The invention still further relates to by the obtainable dry polymeric material of the method for the invention.Additionally, the present invention relates to multiple use and the multiple use of described dry polymeric material of the method for the invention.

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