Infrared absorbing, heat retaining film

1. A film comprising:

at least one polymer selected from the group consisting of:

a low density polyethylene (LDPE) having a density range of 0.900 g/cc to 0.930 g/cc and a melt index (I 2 ) of 0.3 g/10 min to 2.0 g/10 min as measured in accordance with ASTM D1238;

a linear low density polyethylene (LLDPE) having a density range of 0.900 g/cc to 0.930 g/cc and a melt index I 2 of 0.3 g/10 min to 2.0 g/10 min; and

an ethylene vinyl acetate copolymer having a vinyl acetate content ranging from 3 wt. % to 27 wt. % and a melt index I 2 of 0.2 g/10 min to 10 g/10 min; and

a hybrid filler comprising (i) a layered double hydroxide, and (ii) an inorganic powder complex having a particle size distribution defined by a median diameter (D50) of 1.5 to 20 μm, wherein the inorganic powder complex is

a natural mineral blend comprising 55-65 wt % silicon oxide (SiO 2 ), 15-25 wt % aluminum oxide (Al 2 O 3 ), 8-14 wt % sodium oxide (Na 2 O), and 2-7 wt % potassium oxide (K 2 O); or

a synthetic composite comprising 55-65 wt % SiO 2 , 15-25 wt % Al 2 O 3 , 10-15 wt % boron oxide (B 2 O 3 ), and 5-10 wt % calcium oxide (CaO).

2. The film of claim 1 wherein the D50 of the inorganic powder complex is less than 5 μm.

3. The film according to claim 1 , wherein the film comprises from 0.2 wt % to 13 wt % of the hybrid filler, based on total weight of the film.

4. The film according to claim 1 , wherein the film comprises from 0.2 wt % to 8 wt % of the hybrid filler, based on total weight of the film.

5. The film according to claim 1 , wherein the film comprises 0.1 wt % to 8 wt % of the layered double hydroxide, and 0.1 wt % to 5 wt % of the inorganic powder complex.

6. The film according to claim 1 , wherein a weight ratio of the layered double hydroxide and the inorganic powder complex is from 0.2 to 5.

7. The film according to claim 1 , wherein a refractive index of the hybrid filler is from 1.49 to 1.53.

8. The film according to claim 1 , wherein the layered double hydroxide is characterized by the following formula

(Al 2 Li (1−x) M 2+ (x+y) (OH) (6+2y) ) 2 (CO 3 2− ) (1+x) .mH 2 O,

wherein M 2+ is at least one divalent metal ion selected from the group consisting of Mg, Zn, Ca, Fe, Cu, Mn and Ni, m, x and y are defined respectively as 0≤m<10, 0≤x≤1 and 0≤y≤6.

9. The film according to claim 1 , wherein the film comprises a blend of LDPE and LLDPE, wherein the film comprises 10 wt % to 50 wt % LDPE and 50 to 90 wt % LLDPE.

10. The film according to claim 1 , wherein the film comprises one or more of 0.05-1 wt % antioxidant, 0.2-2 wt % UV stabilizer, 0.2-2 wt % UV absorber, 0.01-0.2 wt % anti-fogging agent, and 1-5 wt % anti-dripping agent.

11. The film according to claim 1 , wherein the film has a thickness of from 40 μm to 150 μm.

12. The film according to claim 1 , wherein the film is a monolayer film or multilayer film.

13. The film according to claim 1 , wherein the film is a blown film.

14. The film according to claim 1 , wherein the film exhibits one or more of the following characteristics:

a. a thermicity of less than 70% at a film thickness of 80 μm;

b. a haze of less than 25% at a film thickness of 80 μm when measured in accordance with ASTM D1003; or

c. a clarity of greater than 70% at a film thickness of 80 μm when measured in accordance with ASTM D1746.