Title:
PROCESS FOR THE PRODUCTION OF STRONGLY ADHERENT SURFACE-COATINGS BY PLASMA-ACTIVATED GRAFTING
Document Type and Number:
WIPO Patent Application WO2001058971
Kind Code:
A3
Abstract:
The invention relates to a process for the production of strongly adherent coatings on an inorganic or organic substrate, in which process in a first step: a) the inorganic or organic substrate is subjected to the action of a low-temperature plasma discharge, a corona discharge, high-energy UV radiation or electron radiation, the radiation or discharge is then discontinued, in a further step; b) at least one electron- or H-donor, each containing at least one ethylenically unsaturated group, is applied to the inorganic or organic substrate in vacuo or at normal pressure and reacted with the free radicals formed there, and c1) the substrate so precoated with coinitiator is coated with a composition comprising at least one ethylenically unsaturated monomer or oligomer and a photoinitiator, and the coating is cured by means of electromagnetic and/or ionising radiation; or c2) the substrate so precoated with coinitiator is coated with a composition comprising at least one ethylenically unsaturated monomer or oligomer and one or more thermally activatable initiators, and the coating is cured thermally. The invention relates also the use of electron- or H-donors, for example amines, thioethers or thiols, having at least one ethylenically unsaturated group in the production of such layers and to the strongly adherent coatings themselves.
Inventors:
KUNZ MARTIN (DE)
BAUER MICHAEL (DE)
BAUER MICHAEL (DE)
Application Number:
PCT/EP2001/001113
Publication Date:
February 07, 2002
Filing Date:
February 02, 2001
Export Citation:
Assignee:
CIBA SC HOLDING AG (CH)
KUNZ MARTIN (DE)
BAUER MICHAEL (DE)
KUNZ MARTIN (DE)
BAUER MICHAEL (DE)
International Classes:
B05D3/06; B05D3/10; B05D3/14; C08F2/00; B05D7/24; C08F291/00; C08J7/18; C09D4/00; C09D151/00; (IPC1-7): B05D3/14; B05D7/24; B05D3/06; B05D7/00
Foreign References:
| EP0487323A1 | 1992-05-27 | |||
| US4567106A | 1986-01-28 |
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