Method of activating polymers
AssigneePolymer Research Corp. of America
InventorsCarl Horowitz, Leon Pinczuk, Michael Dichter
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Abstract
The invention relates to the activation of polymers and more particularly to certain classes of high polymeric material which are not susceptible to dyeing or the like whereby the polymeric material is given a functional group which can react with dyes, monomeric materials, etc. Polymeric materials such as polyolefins, e.g. polypropylene, polyesters and polyvinylchloride are sulfonated by reaction with a sulfonating agent in the presence of a hydrocarbon and/or a chlorinated hydrocarbon. The resulting sulfonated polymer can then be easily dyed or can be reacted with monomers to obtain dyeable polymers.
Claims8
Method of activating a polymeric material, which comprises subjecting a polymeric material the surface of which contains thereon a substance selected from the goup consisting of colloidal silver and silver oxide so that strongly ionic materials can be grafted onto said surface to the action of a sulfonating agent in a solvent medium hydrocarbon, whereby said polymeric material becomes rapidly sulfonated and easily subject to reaction with ionic materials including dyes.
Dependencies are inferred from the claim text.