COMPOSITIONS AND METHODS FOR COPOLYMER SOLUTIONS WITH HIGH WEIGHT PERCENT COPOLYMERS

A method of making a solution including a block copolymer includes dissolving the block copolymer in a solvent mixture to form a solution, the solvent mixture including at least two solvent components. The solubility of the block copolymer in the solvent mixture is at least about 7 wt. % at about 64...

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Bibliographische Detailangaben
Hauptverfasser:	WULFMAN, David R, DELANEY, JR., Joseph T, AREMU, Adeniyi, ADENUSI, Adegbola O
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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
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Beschreibung
Zusammenfassung:	A method of making a solution including a block copolymer includes dissolving the block copolymer in a solvent mixture to form a solution, the solvent mixture including at least two solvent components. The solubility of the block copolymer in the solvent mixture is at least about 7 wt. % at about 64° C. The solvent mixture is non-reactive with the block copolymer. The solubility of the block copolymer in a single solvent solution consisting of any one of the at least two solvent components and the block copolymer is not greater than about 1 wt. % at about 64° C. The block copolymer includes polyisobutylene segments and polyurethane segments.