Binder composition

Patent metadata

Field	Value
Publication number	US-12502879-B2
Application number	US-201716099327-A
Country	US
Kind code	B2
Filing date	May 11, 2017
Priority date	May 13, 2016
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

The invention relates to an aqueous binder composition for mineral fibers comprising at least one hydrocolloid.

First claim

The invention claimed is:

1 . A mineral wool product, wherein the product comprises mineral fibers bonded by a cured aqueous binder composition, the binder composition before curing comprising at least two hydrocolloids, at least a first hydrocolloid comprising a protein of animal origin and at least a second protein selected from the group consisting of alginate, agar agar, carrageenan, gellan gum, guar gum, gum arabic, locust bean gum, xanthan gum, cellulose derivatives, arabinoxylan, curdlan, β-glucan, and further comprising at least one tannin selected from condensed tannins, hydrolyzable tannins, gallotannins, ellagitannins, complex tannins, tannins originating from one or more of oak, chestnut, staghorn sumac, fringe cups, and wherein the at least one protein of animal origin and the at least one tannin are crosslinked in the cured binder composition to form a network.

2 . The mineral wool product of claim 1 , wherein at least one of the at least two hydrocolloids is a polyelectrolytic hydrocolloid.

3 . The mineral wool product of claim 2 , wherein the polyelectrolytic hydrocolloid is at least one of gelatin, alginate, carrageenan, gum arabic, xanthan gum, a cellulose derivative.

4 . The mineral wool product of claim 1 , wherein at least one of the at least two hydrocolloids is gelatin.

5 . The mineral wool product of claim 4 , wherein gelatin is present in a concentration of from 10 to 95 wt.-%, based on a total weight of the at least two hydrocolloids.

6 . The mineral wool product of claim 1 , wherein the binder composition before curing comprises at least two hydrocolloids which have complementary charges.

7 . The mineral wool product of claim 1 , wherein the at least one tannin is selected from tannins originating from one or more of oak, chestnut, staghorn sumac, fringe cups.

8 . The mineral wool product of claim 1 , wherein the binder composition before curing comprises one or more proteins of animal origin and further comprises at least one enzyme selected from transglutaminase (EC 2.3.2.13), protein disulfide isomerase (EC 5.3.4.1), thiol oxidase (EC 1.8.3.2), polyphenol oxidase (EC 1.14.18.1), catechol oxidase, tyrosine oxidase, phenoloxidase, lysyl oxidase (EC 1.4.3.13), and peroxidase (EC 1.11.1.7).

9 . A method of producing a mineral wool product, wherein the method comprises contacting mineral fibers with the binder composition of claim 1 and curing the binder composition.

10 . The mineral wool product of claim 1 , wherein at least one of the at least two hydrocolloids is agar agar.

11 . The mineral wool product of claim 1 , wherein at least one of the at least two hydrocolloids is gellan gum.

12 . The mineral wool product of claim 1 , wherein at least one of the at least two hydrocolloids is a cellulose derivative.

13 . The mineral wool product of claim 1 , wherein at least one of the at least two hydrocolloids is alginate.

14 . The mineral wool product of claim 1 , wherein at least one of the at least two hydrocolloids is carrageenan.

15 . The mineral wool product of claim 4 , wherein at least one of the at least two hydrocolloids is agar agar.

16 . The mineral wool product of claim 4 , wherein at least one of the at least two hydrocolloids is gellan gum.

17 . The mineral wool product of claim 4 , wherein at least one of the at least two hydrocolloids is a cellulose derivative.

18 . The mineral wool product of claim 4 , wherein at least one of the at least two hydrocolloids is alginate.

19 . The mineral wool product of claim 4 , wherein at least one of the at least two hydrocolloids is carrageenan.

Assignees

• Rockwool Int
• Rockwool As

Inventors

• Hjelmgaard Thomas

Classifications

• E04F13/0866

  composed of several layers, e.g. sandwich panels or layered panels (layered products as such in general B32B; producing decorative panels or veneers B44C5/04; E04F13/0864, E04F13/0875 take precedence) · CPC title

• E04D3/352

  at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets · CPC title

• E04C2/284

  at least one of the materials being insulating · CPC title

• E04B1/80

  slab-shaped · CPC title

• D10B2505/20

  for civil engineering, e.g. geotextiles · CPC title