Patent ID: 7294673
Filing Date: 2007-11-13
Classification: B01J,C08F,C08J,C08L,C09J,D06M,H01M,Y02E

Abstract:
1. A method of modifying the surface of a polymeric surface of a polymeric material which comprises: (1) subjecting the polymeric material to an impregnation step to contact the polymeric material with a single or a mixture of compounds, having an impregnation property to the polymeric material in the manner so that the compound permeates in the polymeric material and the content of the impregnated compound in the layer of polymeric material within the depth of 100 micron from the surface of the polymeric material is in the range of 0.1% to 40% by weight of the treated polymeric material without any substantial deformation of the polymeric material; (2) subjecting the polymeric material produced in said impregnation step to an activation step to introduce carbonyl groups into the polymeric material, wherein said activation step is conducted by at least one treatment selected from the group consisting of an ozone treatment, a plasma treatment, a UV irradiation treatment, a corona discharge treatment and a high voltage electric discharge treatment; and (3) conducting a step of monomer grafting to the polymeric material produced in said impregnation step and subsequent said activation step, in the presence of catalysts or initiators or photo-sensitizers, wherein said steps (1), (2) and (3) are sequentially carried out.