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US 11,685,841 B2Granted
Adhesives and related methods
AssigneeAvery Dennison Corporation
InventorsMichael Zajaczkowski, Michael T. Waterman, Kyle R. Heimbach, Eric L. Bartholomew, Brandon S. Miller
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Abstract
Cure in place pressure sensitive adhesive compositions are described that comprise one or more of a bodying component, a structural diluent, a radical diluent as well as additives such as crosslinkers, external catalysts, photoinitiators and stabilizers/process aids. The bodying component can be acrylic or non-acrylic.
Claims23
A method of curing a liquid composition comprising:
- providing a cure in place liquid composition comprising
- 5-70 wt % of a bodying component comprising an acrylic base polymer having a molecular weight (Mw) of 5,000 to 1,000,000,
- 5-80 wt % of at least one structural diluent,
- 5-70 wt % of at least one radical addition diluent,
- 0-5.0 wt % of a first curative,
- 0-10 wt % of a second curative,
- 0-10.0 wt % photosensitizer;
- and
- 0-10.0 wt % stabilizer/process aid;
- exposing the liquid composition to a first stimulus to form a pressure sensitive adhesive composition, the first stimulus selected from the group consisting of radiation, electron beam, heat, moisture, pressure, ultrasound, chemical exposure, and combinations thereof,
- wherein the acrylic base polymer is a pre-polymerized acrylic backbone base polymer, and
- wherein the pre-polymerized acrylic backbone base polymer does not contain any ethylenic unsaturation along the polymer chain.
9 more elements
Dependencies are inferred from the claim text.