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US 11,865,569 B2Granted
Systems and methods for applying dots of different adhesives to moving roofing shingle stock
AssigneeBmic LLC
InventorsJames A. Svec, Olan T. Leitch
Life of this patent
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Abstract
Systems and methods of applying self-seal strips of multiple different adhesives are disclosed. In one embodiment, two spaced apart spoked applicator wheel assemblies are positioned beneath a web of moving shingle stock such that each of the applicator wheels applies dots of different adhesives in an alternating pattern. In other embodiments, a layer of a second adhesive is deposited onto previously applied dots of a first adhesive to form layered adhesive dots with dual properties of both adhesives.
Claims8
A roofing material comprising:
- a shingle formed from a shingle stock material and comprising:
- a first plurality of dots of a first adhesive applied along a surface of the shingle;
- and
- a second plurality of dots of a second adhesive applied along the surface of the shingle;
- wherein the first plurality of dots of the first adhesive are non-overlapping with the second plurality of dots of the second adhesive;
- wherein the first adhesive comprises a self-seal adhesive material having first adhesive properties and the second adhesive comprises another self-seal adhesive material having second adhesive properties that are different from the first adhesive properties of the first adhesive such that application of the first adhesive and the second adhesive forms a multi-adhesive self-seal strip having different adhesive properties along the surface of the shingle;
- wherein the self-seal adhesive material of the second adhesive is configured to exhibit tacking at a tacking temperature that is less than a tacking temperature of the self-seal adhesive material of the first adhesive;
- and the self-seal adhesive material of the first adhesive is configured to form a seal following exposure to sunlight or heat, and
- wherein an amount of the second plurality of dots of the second adhesive is less than an amount of the first plurality of dots of the first adhesive, such that the second plurality of dots of the second adhesive are applied to the surface of the shingle in a ratio with respect to the first plurality of dots of the first adhesive of 1 to 4, 1 to 3, 1 to 2, 2 to 3 or 3 to 4.
6 more elements
Dependencies are inferred from the claim text.