# US 10,865,565 B2 · Shingles with increased hydrophobicity

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- Number: US 10,865,565 B2
- Document ID: US10865565B2
- Status: Granted
- Kind: B2
- Application number: 16/393,548
- Filed: 2019-04-24
- Published: 2020-01-16
- Granted: 2020-12-15
- Earliest claimed: 2018-07-11
- Assignees: Owens Coming Intellectual Capital, LLC
- Applicants: Owens Corning Intellectual Capital, LLC
- Inventors: William Smith; Scott Schweiger; Jonathan Verhoff; Ozma Lane; Kevin Click; Daniel Buckwalter
- Web page: https://patentgrep.com/patent/US10865565B2

## CPC

- E04D 1/20: of plastics; {of asphalt;} of fibrous materials
- E04D 1/26: Strip-shaped roofing elements {simulating a repetitive pattern, e.g.} appearing as a row of shingles
- 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)

## Abstract

A shingle includes a substrate, a surface layer of granules, a backdust layer, an adhesive, and a hydrophobic material. Asphalt is applied to the substrate to form a first asphalt coating on the top or upper surface of the substrate and a second asphalt coating on the bottom or lower surface of the substrate. A surface layer of granules is embedded in the first asphalt coating. A backdust layer of particles is embedded in the second asphalt coating. A adhesive is disposed on the backdust layer. The hydrophobic material is applied to the adhesive.

## Claims

### Claim 1

A shingle comprising
a substrate having a first surface defining an upper side of the shingle and an opposed a second surface defining a lower side of the shingle;
a first asphalt coating infiltrating the first surface of the substrate;
a second asphalt coating infiltrating the second surface of the substrate;
an adhesive on the lower side of the shingle;
a first hydrophobic material applied to at least one of the upper side of the shingle and lower side of the shingle; and
a second hydrophobic material applied to the adhesive.

### Claim 2 (depends on 1)

The shingle of claim 1, wherein the first hydrophobic material and the second hydrophobic material are different materials.

### Claim 3 (depends on 1)

The shingle of claim 1, wherein the first hydrophobic material has a surface with degree of hydrophobicity such that a droplet of moisture applied to the surface exhibits a contact angle of greater than 70 degrees.

### Claim 4 (depends on 1)

The shingle of claim 1, wherein the second hydrophobic material has a surface with degree of hydrophobicity such that a droplet of moisture applied to the surface exhibits a contact angle of greater than 70 degrees.

### Claim 5 (depends on 1)

The shingle of claim 1, wherein the adhesive is an asphalt-based adhesive.

### Claim 6 (depends on 1)

The shingle of claim 1, wherein at least one of the first asphalt coating and the second asphalt coating comprise a polymer modified asphalt.

### Claim 7 (depends on 1)

The shingle of claim 1, wherein the first hydrophobic material comprises at least one of hydrophobic backdust and hydrophobic granules.

### Claim 8 (depends on 1)

The shingle of claim 1, wherein a plurality of granules are embedded in the first asphalt coating and the first hydrophobic material is a coating on the granules.

### Claim 9 (depends on 8)

The shingle of claim 8, wherein the shingle has a scrub loss of less than 1 g as determined by the testing procedure of ASTM D4977.

### Claim 10 (depends on 1)

The shingle of claim 1, wherein a layer of backdust is on the second asphalt coating and the first hydrophobic material is a coating on the layer of backdust.

### Claim 11 (depends on 1)

The shingle of claim 1, wherein the first hydrophobic material is selected from the group consisting of silanes, wax, silicones, siloxanes, styrene-butadiene rubber (SBR), esters of acrylic resins, and combinations thereof.

### Claim 12 (depends on 1)

The shingle of claim 1, wherein the second hydrophobic material is selected from the group consisting of silanes, wax, silicones, siloxanes, styrene-butadiene rubber (SBR), esters of acrylic resins, stearates, and combinations thereof.

### Claim 13 (depends on 12)

The shingle of claim 12, wherein the second hydrophobic material further includes a surfactant.

### Claim 14 (depends on 1)

The shingle of claim 1, wherein the first hydrophobic material includes a silane.

### Claim 15 (depends on 14)

The shingle of claim 14, wherein the first hydrophobic material further includes a silicone.

### Claim 16 (depends on 1)

The shingle of claim 1, wherein the second hydrophobic material includes a silicone emulsion and a salt of fatty acid.

### Claim 17

A bundle of shingles comprising:
a package that includes a plurality of stacked shingles, where each shingle comprises
a substrate having a first surface defining an upper side of the shingle and opposed a second surface defining a lower side of the shingle;
a first asphalt coating infiltrating the first surface of the substrate;
a second asphalt coating infiltrating the second surface of the substrate;
an adhesive on the lower side of the shingle;
a first hydrophobic material applied to at least one of the upper side of the shingle and lower side of the shingle; and
a second hydrophobic material applied to the adhesive.

### Claim 18

A stack of shingles comprising:
a first plurality of shingles stacked on a first pallet;
a second pallet stacked on the first plurality of shingles; and
a second plurality of shingles stacked on the second pallet;
wherein the each shingle in the first plurality of shingles and the second plurality of shingles comprises
a substrate having a first surface defining an upper side of the shingle and opposed a second surface defining a lower side of the shingle;
a first asphalt coating infiltrating the first surface of the substrate;
a second asphalt coating infiltrating the second surface of the substrate;
an adhesive on the lower side of the shingle;
a first hydrophobic material applied to at least one of the upper side of the shingle and lower side of the shingle; and
a second hydrophobic material applied to the adhesive.

### Claim 19 (depends on 18)

The stack of shingles of claim 18, wherein each of the shingles in the first plurality of shingles and second plurality of shingles has a first asphalt coating and a second asphalt coating that are each a polymer modified asphalt.

### Claim 20 (depends on 18)

The stack of shingles of claim 18, wherein there is no release tape between the shingles stacked in the first plurality of shingles and the second plurality of shingles.

### Claim 21 (depends on 18)

The stack of shingles of claim 18, each of the shingles in the first plurality of shingles and second plurality of shingles has a lap shear strength of less than 50 lbs for when the shingles are tested face to face and each of the shingles in the first plurality of shingles and second plurality of shingles has a lap shear strength of less than 50 lbs for when the shingles are tested back to back.
