Protective screen for glasses of vehicles

1. A protective screen for vehicle windows, comprising:

a flexible protective sheet including a vehicle fastener, wherein said flexible protective sheet comprises:

a first outer layer, resistant to heat/cold, mechanical and chemical stresses, UV ray-shielding and having fastness to light,

a second layer made of thermally insulative fabric, designed to face a window; and

an intermediate layer between the first outer layer and the second layer, wherein the intermediate layer is made of resinated fabric and said protective screen comprises at least one self-ventilation element configured so as to allow a passage of air between said intermediate layer and outside of the protective screen, through said second layer.

2. The protective screen for vehicle windows according to claim 1 , wherein said first layer substantially has a chemical resistance.

3. The protective screen for vehicle windows according to claim 1 , wherein said first layer is made of an elastomeric protective technical fabric having technical features comprising:

warp tensile strength: ≥3600 N/5 cm;

weft tensile strength: ≥3200 N/5 cm;

warp stretch at break: 20% with tolerance ±3%;

weft stretch at break: 29% with tolerance ±5%; and

a chemical resistance to dipping in acetone and hydrocarbons.

4. The protective screen for vehicle windows of claim 1 , wherein said first layer substantially has features of:

cold resistance to −30° C.;

heat resistance to +70° C.; and

fastness to light >6, according to Standard DIN EN ISO 105 B02.

5. The protective screen for vehicle windows according to claim 1 , wherein said second layer is made of a polyester woven fabric having technical features comprising: warp tensile strength: 3000 N/50 mm;

weft tensile strength: 2800 N/50 mm;

warp tearing strength: 300 N;

weft tearing strength: 300 N;

cold-resistance to −10° C.;

heat resistance to +70° C.; and

fastness to light >6, according to Standard DIN EN ISO 105 B02.

6. The protective screen for vehicle windows according to claim 1 , wherein said intermediate layer is made of polyester.

7. The protective screen for vehicle windows according to claim 1 , wherein said intermediate layer comprises polyester having a weight: from 120 to 800 g/m 2 .

8. The protective screen according to claim 1 , wherein said fastener consists of magnetic bodies.

9. The protective screen according to claim 1 , wherein a metal grid is arranged on the vehicle window and said protective screen has a peripheral frame configured to be positioned on a frame of said metal grid and to be firmly fastened thereto, and a detachable portion of the flexible protective sheet within said peripheral frame.

10. The protective screen according to claim 1 , wherein said at least one element for air circulation comprises at least one series of through openings for air circulation which cross said first outer layer, said intermediate layer and said second layer.

11. The protective screen according to claim 1 , comprising at least one rain-proof covering element associated with said at least one element for air circulation.

12. The protective screen according to claim 1 , wherein said at least one self-ventilation element comprises at least one series of self-ventilation through openings which are provided only in said second layer.

13. A protective screen for vehicle windows, comprising:

a flexible protective sheet including a vehicle fastener, wherein said flexible protective sheet comprises:

a first outer layer, resistant to heat/cold, mechanical and chemical stresses, UV ray-shielding and having fastness to light,

a second layer made of thermally insulative fabric, designed to face a window;

an intermediate layer between the first outer layer and the second layer, wherein the intermediate layer is made of resinated fabric; and

at least one element for air circulation configured so as to allow a passage of air through said first outer layer, said intermediate layer and said second layer, wherein said at least one element for air circulation comprises at least one valve for air circulation coupled to said flexible sheet, wherein said valve is configured to allow air to pass through the flexible protective sheet and rainwater to pass through said valve without the rainwater interfering with the passage of air.

14. A protective screen for vehicle windows, comprising:

a flexible protective sheet including a vehicle fastener, wherein said flexible protective sheet comprises:

a first outer layer, resistant to heat/cold, mechanical and chemical stresses, UV ray-shielding and having fastness to light,

a second layer made of thermally insulative fabric, designed to face a window;

an intermediate layer between the first outer layer and the second layer, wherein the intermediate layer is made of resinated fabric; and

at least one element for air circulation configured so as to allow a passage of air through said first outer layer, said intermediate layer and said second layer, wherein the at least one element for air circulation comprises at least one series of through openings for air circulation which cross the first layer, the intermediate layer and the second layer;

wherein said through openings for air circulation comprise micro holes and are provided on an upper portion of said protective screen which covers an upper portion of a window of the vehicle when said protective screen is applied to the vehicle so as to facilitate passage of hot air.

15. A protective screen for vehicle windows, comprising:

a flexible protective sheet including a vehicle fastener, wherein said flexible protective sheet comprises:

a first outer layer, resistant to heat/cold, mechanical and chemical stresses, UV ray-shielding and having fastness to light,

a second layer made of thermally insulated fabric, designed to face a window,

wherein a metal grid is arranged on the vehicle window and said protective screen has a peripheral frame configured to be positioned on a frame of said metal grid and to be firmly fastened thereto, and a detachable portion of the flexible protective sheet within said peripheral frame.

16. The protective screen for vehicle windows according to claim 15 , comprising: an intermediate layer made of resinated fabric between the first outer layer and the second layer.

17. The protective screen for vehicle windows according to claim 15 , wherein said first layer substantially has a chemical resistance.

18. The protective screen for vehicle windows according to claim 15 , wherein said first layer is made of an elastomeric protective technical fabric having technical features comprising:

warp tensile strength: ≥3600 N/5 cm;

weft tensile strength: ≥3200 N/5 cm;

warp stretch at break: 20% with tolerance ±3%;

weft stretch at break: 29% with tolerance ±5%; and

a chemical resistance to dipping in acetone and hydrocarbons.

19. The protective screen for vehicle windows of claim 15 , wherein said first layer substantially has features of:

cold resistance to −30° C.;

heat resistance to +70° C.; and

fastness to light >6, according to Standard DIN EN ISO 105 B02.

20. The protective screen for vehicle windows according to claim 15 , wherein said second layer is made of a polyester woven fabric having technical features comprising:

warp tensile strength: 3000 N/50 mm;

weft tensile strength: 2800 N/50 mm;

warp tearing strength: 300 N;

weft tearing strength: 300 N;

cold-resistance to −10° C.;

heat resistance to +70° C.; and

fastness to light >6, according to Standard DIN EN ISO 105 B02.

21. The protective screen for vehicle windows according to claim 16 , wherein said intermediate layer is made of polyester.

22. The protective screen for vehicle windows according to claim 16 , wherein said intermediate layer comprises polyester having a weight: from 120 to 800 g/m 2 .

23. The protective screen according to claim 15 , wherein said fastener consists of magnetic bodies.

24. The protective screen according to claim 16 , wherein at least one element for air circulation comprises at least one series of through openings for air circulation which cross said first outer layer, said intermediate layer and said second layer.

25. The protective screen according to claim 15 , comprising at least one rain-proof covering element associated with said at least one element for air circulation.

26. The protective screen according to claim 15 , wherein said at least one self-ventilation element comprises at least one series of self-ventilation through openings which are provided only in said second layer.