# US 9,040,161 B2 · Protective sheet for solar cell module, and solar cell module

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- Number: US 9,040,161 B2
- Document ID: US9040161B2
- Status: Granted
- Kind: B2
- Application number: 13/637,052
- Filed: 2011-03-24
- Published: 2013-08-01
- Granted: 2015-05-26
- Earliest claimed: 2010-03-26
- Assignees: Lintec Corporation
- Applicants: Yasunari Takanashi; Kiichiro Kato
- Inventors: Yasunari Takanashi; Kiichiro Kato
- Web page: https://patentgrep.com/patent/US9040161B2

## CPC

- H10F 19/804: {Materials of encapsulations}
- B32B 27/08: of synthetic resin
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/308: {comprising acrylic (co)polymers}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 27/325: {comprising polycycloolefins}
- B32B 27/36: comprising polyesters
- H10F 19/85: Protective back sheets
- B32B 2457/12: Photovoltaic modules
- Y02E 10/50: Photovoltaic [PV] energy
- Y10T 428/3154: Of fluorinated addition polymer from unsaturated monomers
- Y10T 428/31909: Next to second addition polymer from unsaturated monomers
- Y10T 428/31913: Monoolefin polymer
- Y10T 428/31928: Ester, halide or nitrile of addition polymer
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A protective sheet for a solar cell module that includes a cycloolefin resin layer laminated to one surface of a substrate film with a polyolefin resin layer disposed therebetween, wherein the polyolefin resin layer and the cycloolefin resin layer are formed by co-extrusion molding.

## Claims

### Claim 1

A protective sheet for a solar cell module, the protective sheet comprising
a cycloolefin resin layer laminated to one surface of a polyethylene terephthalate film with a polyolefin resin layer disposed therebetween, and
a fluororesin layer laminated to a surface of the polyethylene terephthalate film which is opposite the surface on which the polyolefin resin layer and the cycloolefin resinlayer are laminated, wherein
the polyolefin resin layer and the cycloolefin resin layer are formed by co-extrusion molding; and
a peel adhesive strength at the interface between the polyolefin resin layer and the substrate film is 10.6 to 18.1 N/25 mm.

### Claim 2 (depends on 1)

The protective sheet for a solar cell module according to claim 1, wherein the polyolefin resin layer comprises one resin selected from the group consisting of
polyethylene, maleic anhydride-grafted polyethylene, ethylene-(meth)acrylate copolymers, ethylene-(meth)acrylate-glycidyl methacrylate copolymers, and ethylene-vinyl acetate copolymers.

### Claim 3 (depends on 1, 2)

A solar cell module produced using the protective sheet for a solar cell module according to claim 1 or 2.