Product comprising a mineral wool to be blown

Patent metadata

Field	Value
Publication number	US-2024254041-A1
Application number	US-202218290650-A
Country	US
Kind code	A1
Filing date	Jul 21, 2022
Priority date	Jul 21, 2021
Publication date	Aug 1, 2024
Grant date	—

Abstract

A thermal and/or acoustic insulation product includes a loose mineral wool, the mineral wool including mineral fibers and being suited to being blown. The product includes at least one additive and has a total additive weight percent of between 0.4% and 1.2% inclusive and a micronaire of between 4 L/min and 9 L/min.

First claim

1 . A thermal and/or acoustic insulation product comprising a bulk glass wool, the glass wool comprising mineral fibers and being suitable for being blown, wherein:
the product comprises at least one additive, the product having a weight percent of a total of the at least one additive between 0.4% and 1.2% inclusive, the product has a micronaire of between 4 L/min and 9 L/min.

2 . The thermal and/or acoustic insulation product according to claim 1 , wherein a volume-weighted median diameter of the fibers is between 5 μm and 15 μm inclusive.

3 . The thermal and/or acoustic insulation product according to claim 1 , wherein the fibers have a fiber length population distribution such that a ratio between a fiber length is equal to 90 th percentile in distribution number to a median fiber length in distribution number is greater than 3.

4 . The thermal and/or acoustic insulation product according to claim 1 , wherein the fiber length equal to the 90 th percentile in distribution number is strictly greater than 1 mm.

5 . The thermal and/or acoustic insulation product according to claim 1 , wherein a median fiber length in distribution number is less than or equal to 2 mm.

6 . The thermal and/or acoustic insulation product according to claim 1 , wherein the product has a density of between 100 kg·m −3 et 180 kg·m −3 inclusive.

7 . The thermal and/or acoustic insulation product according to claim 1 , wherein the at least one additive comprises at least one additive chosen from an anti-dust additive, a hydrophobing additive, an antistatic additive and a dye.

8 . The thermal and/or acoustic insulation product according to claim 1 , wherein the at least one additive comprises an antistatic additive, a weight percent of the antistatic additive being between 0.01% and 0.30% inclusive.

9 . The thermal and/or acoustic insulation product according to claim 1 , wherein the at least one additive comprises an antistatic additive, and wherein the antistatic additive is selected from a tertiary ammonium, a quaternary ammonium, and a polyethylene glycol.

10 . The thermal and/or acoustic insulation product according to claim 1 , wherein the at least one additive comprises a hydrophobing additive, a weight percent of the hydrophobing additive being between 0.05% and 0.4% inclusive.

11 . The thermal and/or acoustic insulation product according to claim 1 , wherein an average length of the fibers by number of fibers is between 0.5 mm and 1.5 mm inclusive.

12 . The thermal and/or acoustic insulation product according to claim 1 , able to have, after having been blown, a thermal performance factor χ between 0.45 W·kg·K −1 ·m −4 and 0.8 W·kg·K −1 ·m −4 .

13 . The thermal and/or acoustic insulation product according to claim 1 , wherein the product is able to have, after having been blown, a blown density of between 5 kg/m 3 and 18 kg/m 3 inclusive.

14 . The thermal and/or acoustic insulation product according to claim 1 , wherein the at least one additive taken together form sprayed deposits on the fibers.

15 . A thermal and/or acoustic insulation coating obtained by blowing a product according to claim 1 .

16 . The thermal and/or acoustic insulation thermal and/or acoustic insulation coating according to claim 15 , having a thermal performance factor χ between 0.45 W·kg·K −1 ·m −4 and 0.8 W·kg·K −1 ·m −4 .

17 . The thermal and/or acoustic insulation coating according to claim 15 , having a density between 5 kg/m 3 and 18 kg/m 3 inclusive.

18 . The thermal and/or acoustic insulation coating according to claim 15 , having a thermal conductivity of between 35 mW·m −1 ·K −1 and 60 mW·m −1 ·K −1 inclusive.

19 . A method for manufacturing a thermal and/or acoustic insulation product according to claim 1 , comprising spraying all of the at least one additive onto the fibers by liquid route.

20 . A method comprising providing a thermal and/or acoustic insulation product according to claim 1 for a thermal and/or acoustic insulation of a barrier of a building.

Assignees

• Saint Gobain Isover

Inventors

• Rony Amaury
• Michel Alexia
• Perros Elodie
• Toulemon Delphine

Classifications

• C03C2218/112

  by spraying · CPC title

• C03C2217/76

  Hydrophobic and oleophobic coatings · CPC title

• C03B37/06

  by blasting or blowing molten glass, e.g. for making staple fibres · CPC title

• E04B1/88

  Insulating elements for both heat and sound · CPC title

• C03C2213/00

  Glass fibres or filaments · CPC title