Patent ID: 11926768
Assignee: HENKEL AG & CO. KGAA
Field: Other special machines (Mechanical engineering)
Classification: CPC C  B | IPC B  C

Claim 18:
19. A method of activating a surface of a plastics substrate formed from: polyether ether ketone (PEEK) polyether ketone ketone (PEKK), polyether ketone (PEK); polyether ether ketone ketone (PEEKK); or polyether ketone ether ketone ketone (PEKEKK);
for subsequent bonding,
the method comprising the step of exposing the surface to actinic radiation wherein the actinic radiation:
includes radiation with wavelength in the range from about 10 nm to about 1000 nm;
and the energy of the actinic radiation to which the surface is exposed is in the range from 4 J/cm2 to about 40 J/cm2 for subsequent bonding with acrylic adhesive; or
the energy of the actinic radiation to which the surface is exposed is in the range from about 4 J/cm2 to about 850 J/cm2 for subsequent bonding with epoxy adhesive.