Patent ID: 11866609
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 15:
16. A laminate comprising:
a first substrate;
a second substrate; and
an optically clear adhesive composition positioned between and in contact with the first substrate and the second substrate, wherein the optically clear adhesive layer is derived from precursors that comprise:
a free-radically polymerizable acrylate or meth(acrylate) functional acrylic oligomer;
a trialkyl borane-amine complex initiator, wherein the amine is decomplexed by reaction with a superacid to initiate polymerization of the free-radically polymerizable acrylate or meth(acrylate) functional acrylic oligomer;
a photoacid generator that generates a superacid upon exposure to actinic radiation; and
a photosensitizer wherein the photosensitizer absorbs light and transfers energy or an electron to the photoacid generator,
wherein the photosensitizer is a benzoin ether,
wherein a viscosity of the composition immediately after mixing and a viscosity of the composition about 24 hours after mixing changes by less than about 10%.