Coating processes – With pretreatment of the base – Preapplied reactant or reaction promoter or hardener
Patent
1986-05-04
1987-04-28
Seccuro, Carman J.
Coating processes
With pretreatment of the base
Preapplied reactant or reaction promoter or hardener
427400, 428336, 428337, 428338, 428422, 5253262, 525275, 525276, 525385, B05D 310, C08F25908, C08J 712, C08J 716
Patent
active
046613838
ABSTRACT:
A novel method for grafting polymers to polytetrafluoroethylene (PTFE) and composites grafted according to this method are described. PTFE at a surface of a substrate is reduced to polyacetylene (PA) and then doped with a suitable dopant. The doped PA/PTFE substrate is then contacted with a polymerizable monomer precursor capable of polymerizing with doped PA, to form the polymer of said precursor chemically bonded to the surface of the PA/PTFE substrate. A grafted composite with layers of varying thickness may be formed by further contacting the substrate bonded to polymer with preformed polymer of a similar cohesive energy density.
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Sobue, et al., "Radiation Induced Graft . . . ", Chemical Abstracts, 76 (1971) 113814f.
Kabanov, et al., "Radiation Ionic Graft . . . ", Chemical Abstracts, (1971) 89044m.
Patton and McCarthy, "Surface Modification of Poly . . . ", Macromolecules, 17, pp. 2940-2942 (1984).
Baughman R. Henry
Elsenbaumer Ronald L.
Iqbal Zafar
Ivory Dawn M.
Allied Corporation
Fuchs Gerhard H,.
Matthews Gale F.
Seccuro Carman J.
Stewart Richard C.
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