Method for plasma-initiated polymerization
AssigneeTerumo Kabushiki Kaisha
InventorsTakeshi Shimomura, Tohru Takahashi
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Abstract
In a method for plasma-initiated polymerization by the steps of exposing a vapor phase containing monomer vapor to a plasma and introducing a polymerization initiating active seed consequently produced into a condensate phase of monomer thereby effecting chain-growth polymerization of the monomer, the improvement which comprises effecting the production of the polymer while keeping a radical polymerization initiator present at least in the aforementioned vapor phase.
Claims21
A method for plasma-initiated polymerization by the steps of exposing a vapor phase containing monomer vapor to a plasma and introducing a polymerization initiating active seed consequently produced into a condensate phase of monomer thereby effecting chain-growth polymerization of said monomer, which method is characterized by effecting the production of a polymer while keeping a radical polymerization initiator present at least in said vapor phase.
A method for producing a polymer by plasma-initiated polymerization wherein the polymer is of a molecular weight of at least about 10.sup.7, comprising the steps of exposing a vapor phase containing monomer vapor to a plasma and introducing a polymerization initiating active seed consequently produced into a condensate phase of monomer thereby effecting chain-growth polymerization of said monomer, which method is characterized by effecting the production of polymer while keeping a radical polymerization initiator present at least in said vapor phase, wherein said initiator is benzoyl peroxide or azo-bis-isobutyronitrile.
Dependencies are inferred from the claim text.