# US 11,078,669 B2 · Applying a release material to a shingle during manufacturing

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- Number: US 11,078,669 B2
- Document ID: US11078669B2
- Status: Granted
- Kind: B2
- Application number: 16/288,470
- Filed: 2019-02-28
- Published: 2019-09-05
- Granted: 2021-08-03
- Earliest claimed: 2018-03-05
- Assignees: TAMKO Building Products, Inc.
- Applicants: TAMKO Building Products LLC
- Inventors: Chris Freeborg; Kyle Davis; Alex Alekhine; David Humphreys
- Web page: https://patentgrep.com/patent/US11078669B2

## CPC

- E04D 1/20: of plastics; {of asphalt;} of fibrous materials
- B05C 5/02: {the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g.} from an outlet device in contact or almost in contact, with the work
- B32B 11/02: with fibres or particles {being present as additives in the layer}
- B32B 11/04: comprising such {bituminous or tarry} substance as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a glass layer B32B17/06)}
- B32B 37/24: with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate (B32B37/15 takes precedence)
- B32B 2250/03: 3 layers
- B32B 2250/40: Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
- B32B 2255/26: Polymeric coating
- B32B 2264/104: Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
- B32B 2419/06: Roofs, roof membranes
- E04D 5/10: by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
- E04D 2001/005: {the roofing elements having a granulated surface}
- E04D: ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS (coverings of outer walls by plaster or other porous material E04F13/00)
- B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

Disclosed is a release material that can be applied as a liquid, gel, emulsion, foam, etc. in a shingle manufacturing line. The release material can also be used in the manufacturing of roll roofing. The release material primarily constitutes an emulsion of polymers that can be cured with heat, IR light or other methods. Silicone may also be included in the emulsion which assists in releasability. The release material can be sprayed or extruded on to the surface of the shingle in an automated fashion, eliminating the necessity for operator interaction.

## Claims

### Claim 1

A system for applying a release material to a shingle during manufacturing of said shingle comprising:
an asphalt coater that coats both a top surface and a bottom surface of a substrate with asphalt to form a top surface of said shingle and a bottom surface of said shingle;
a liquid release material that comprises a liquid or gel silicon polymer emulsion that cures as a waterproof elastic film;
a storage tank that stores said liquid release material;
at least one dispenser connected to said storage tank that has a shape that dispenses said liquid release material in selected designs at specific locations on said top surface of said shingle or said bottom surface of said shingle that align with adhesive on an adjacent shingle when said shingle is placed in a bundle;
a fines applicator that dispenses lines on said top surface or said bottom surface, or both said top surface and said bottom surface of said shingles, including said specific locations on said top surface or said bottom surface, or both said top surface and said bottom surface.

### Claim 2 (depends on 1)

The system of claim 1 wherein said dispensers comprise sprayers.

### Claim 3 (depends on 1)

The system of claim 1 further comprising:
at least one curing device disposed to cure said liquid release material to form a waterproof, heat resistant elastic film.

### Claim 4 (depends on 3)

The system of claim 3 wherein said curing device is an infrared radiation emitter.

### Claim 5 (depends on 1)

The system of claim 1 wherein said liquid release material cures from heat from said asphalt.