# US 9,434,137 B2 · Thermal spray masking tape

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- Number: US 9,434,137 B2
- Document ID: US9434137B2
- Status: Granted
- Kind: B2
- Application number: 12/885,178
- Filed: 2010-09-17
- Published: 2011-03-24
- Granted: 2016-09-06
- Earliest claimed: 2009-08-06
- Assignees: Saint-Gobain Performance Plastics Corporation
- Applicants: Cheryl A. Prudhomme; James Holtzinger; Gene H. Goldstein; Michael J. Tzivanis; William E. Noonan; Richard J. Austin
- Inventors: Cheryl A. Prudhomme; James Holtzinger; Gene H. Goldstein; Michael J. Tzivanis; William E. Noonan; Richard J. Austin
- Web page: https://patentgrep.com/patent/US9434137B2

## CPC

- B32B 25/20: comprising silicone rubber
- B32B 27/12: next to a fibrous or filamentary layer
- C09J 7/29: Laminated material (metallised plastics C09J7/22)
- B32B 37/12: characterised by using adhesives
- B32B 2037/243: {Coating}
- B32B 2038/0076: {Curing, vulcanising, cross-linking}
- B32B 2305/30: Fillers, e.g. particles, powders, beads, flakes, spheres, chips
- B32B 2307/306: Resistant to heat
- B32B 2307/554: Wear resistance
- B32B 2309/12: Pressure
- B32B 2310/0806: using electromagnetic radiation
- B32B 2310/0887: using electron radiation, e.g. beta-rays
- B32B 2319/00: Synthetic rubber
- C09J 2203/31: as a masking tape for painting
- C09J 2483/006: in the substrate
- Y10T 428/2848: Three or more layers
- Y10T 428/31663: As siloxane, silicone or silane
- Y10T 442/2631: Coating or impregnation provides heat or fire protection
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A thermal spray masking tape includes a substrate having a first major surface and a second major surface. The thermal spray masking tape further includes a surface layer overlying the first major surface of the substrate. The surface layer is formed from an elastomer including a liquid silicone rubber.

## Claims

### Claim 1

A thermal spray masking tape consisting of:
a substrate having a first major surface and a second major surface, wherein the substrate consists of a cloth including glass fibers, ceramic fibers, carbon fibers, silicate fibers, or any combination thereof;
a surface layer consisting of a silicone rubber layer overlying the first major surface of the substrate, wherein the silicone rubber layer is a liquid silicone rubber (LSR) layer, a high consistency gum rubber layer, or combination thereof;
a mid-layer disposed directly in contact with the substrate and directly in contact with the surface layer, wherein the mid-layer consists of a metal foil, an aramid fiber, a ceramic based sheet, a glass based sheet, a liquid silicon rubber elastomer (LSR), a polyester film, a polyimide film, a polyamide paper, a polyamide felt, or a combination thereof; and
an adhesive layer directly in contact with the second major surface of the substrate.

### Claim 2 (depends on 1)

The thermal spray masking tape of claim 1, wherein the mid-layer is a polyimide film.

### Claim 3 (depends on 1)

The thermal spray masking tape of claim 1, wherein the silicone rubber has a Shore A durometer of about 20 to about 90.

### Claim 4 (depends on 1)

The thermal spray masking tape of claim 1, wherein the surface layer has a thickness of about 5 mils to about 100 mils.

### Claim 5 (depends on 1)

The thermal spray masking tape of claim 1, wherein the substrate has a thickness of about 1 mil to about 10 mils.

### Claim 6 (depends on 1)

The thermal spray masking tape of claim 1, wherein the mid-layer has a thickness of about 0.5 to about 20 mils.

### Claim 7

A thermal spray masking tape consisting of:
a substrate having a first major surface and a second major surface, wherein the substrate consists of a cloth including glass fibers, ceramic fibers, carbon fibers, silicate fibers, or any combination thereof;
a surface layer consisting of a silicone rubber layer overlying the first major surface of the substrate, wherein the silicone rubber layer is a liquid silicone rubber (LSR) layer, a high consistency gum rubber layer, or combination thereof;
a mid-layer disposed directly in contact with the substrate and directly in contact with the surface layer, wherein the mid-layer consists of a metal foil, an aramid fiber, a ceramic based sheet, a glass based sheet, a liquid silicon rubber elastomer (LSR), a polyester film, a polyimide film, a polyamide paper, a polyamide felt, or a combination thereof;
an adhesive layer directly in contact with the second major surface of the substrate; and
a release liner overlying the adhesive layer.

### Claim 8 (depends on 7)

The thermal spray masking tape of claim 7, wherein the silicone rubber has a Shore A durometer of about 20 to about 90.

### Claim 9 (depends on 7)

The thermal spray masking tape of claim 7, wherein the mid-layer is a polyimide film.

### Claim 10 (depends on 7)

The thermal spray masking tape of claim 7, wherein the mid-layer has a thickness of about 0.5 to about 20 mils.

### Claim 11 (depends on 1, 7)

The thermal spray masking tape of claim 1 or claim 7, wherein the silicone rubber has a density of about 0.035 lbs/cubic inch to about 0.150 lbs/cubic inch.

### Claim 12 (depends on 1, 7)

The thermal spray masking tape of claim 1 or claim 7, wherein the silicone rubber has a number average molecular weight (Mn) of greater than about 25,000.

### Claim 13 (depends on 1, 7)

The thermal spray masking tape of claim 1 or claim 7, having resistance to delamination and degradation after 10 passes of a high velocity oxy fuel (HVOF) coating.

### Claim 14 (depends on 1, 7)

The thermal spray masking tape of claim 1 or claim 7, wherein the surface layer has a thickness of about 5 mils to about 100 mils.

### Claim 15 (depends on 1, 7)

The thermal spray masking tape of claim 1 or claim 7, wherein the substrate has a thickness of about 1 mil to about 10 mils.