Binder
Described is an aqueous binder composition for mineral fibers which comprises a component (i) in the form of one or more carbohydrates and a component (ii) in the form of one or more compounds selected from sulfamic acid, derivatives of sulfamic acid, salts thereof.
1. An aqueous binder composition for mineral fibers, wherein the aqueous binder composition comprises
a component (i) which comprises one or more carbohydrates having a dextrose equivalent (DE) value of from 60 to less than 100;
a component (ii) in the form of one or more compounds selected from sulfamic acid, ammonium sulfamate, calcium sulfamate, sodium sulfamate, potassium sulfamate, magnesium sulfamate, cobalt sulfamate, nickel sulfamate, N-cyclohexyl sulfamic acid, and salts of N-cyclohexyl sulfamic acid; and
one or more compounds selected from
compounds of the following formula, and any salts thereof:
in which R1 corresponds to H, alkyl, monohydroxyalkyl, dihydroxyalkyl, polyhydroxyalkyl, alkylene, alkoxy, or amine;
compounds of the following formula, and any salts thereof:
in which R2 corresponds to H, alkyl, monohydroxyalkyl, dihydroxyalkyl, polyhydroxyalkyl, alkylene, alkoxy, or amine,
and wherein the aqueous binder composition is suitable for producing a bonded mineral fiber product by contacting the mineral fibers with the aqueous binder composition and thereafter curing the aqueous binder composition.
2. The aqueous binder composition of claim 1 , wherein the component (i) comprises a glucose syrup having a DE of from 60 to less than 100.
3. The aqueous binder composition of claim 1 , wherein the component (ii) is present in a concentration of 0.5-15 wt.-%, based on a mass of the component (i).
4. The aqueous binder composition of claim 1 , wherein the aqueous binder composition further comprises one or more compounds selected from ammonia and amines.
5. The aqueous binder composition of claim 1 , wherein the aqueous binder composition further comprises urea.
6. The aqueous binder composition of claim 1 , wherein the aqueous binder composition further comprises one or more fluorescent dyes which become non- fluorescent upon curing of the binder composition.
7. An aqueous binder composition for mineral fibers, wherein the aqueous binder composition comprises
a component (i) in the form of one or more carbohydrates;
a component (ii) in the form of one or more compounds selected from sulfamic acid, ammonium sulfamate, calcium sulfamate, sodium sulfamate, potassium sulfamate, magnesium sulfamate, cobalt sulfamate, nickel sulfamate, N-cyclohexyl sulfamic acid, and salts of N-cyclohexyl sulfamic acid;
one or more compounds selected from ammonia, amines, urea, and fluorescent dyes which become non-fluorescent upon curing of the binder composition; and
one or more compounds selected from
compounds of the following formula, and any salts thereof:
in which R1 corresponds to H, alkyl, monohydroxyalkyl, dihydroxyalkyl, polyhydroxyalkyl, alkylene, alkoxy, or amine;
compounds of the following formula, and any salts thereof:
in which R2 corresponds to H, alkyl, monohydroxyalkyl, dihydroxyalkyl, polyhydroxyalkyl, alkylene, alkoxy, or amine,
and wherein the aqueous binder composition is suitable for producing a bonded mineral fiber product by contacting the mineral fibers with the aqueous binder composition and thereafter curing the aqueous binder composition.
8. The aqueous binder composition of claim 7 , wherein the aqueous binder composition further comprises one or more compounds selected from ammonia and amines.
9. The aqueous binder composition of claim 7 , wherein the aqueous binder composition further comprises urea.
10. The aqueous binder composition of claim 7 , wherein the aqueous binder composition further comprises one or more fluorescent dyes which become non-fluorescent upon curing of the binder composition.
11. An aqueous binder composition for mineral fibers, wherein the aqueous binder composition comprises
a component (i) in the form of one or more carbohydrates;
a component (ii) in the form of one or more compounds selected from sulfamic acid, cobalt sulfamate, nickel sulfamate, and N-cyclohexyl sulfamic acid,
and wherein the aqueous binder composition is suitable for producing a bonded mineral fiber product by contacting the mineral fibers with the aqueous binder composition and thereafter curing the aqueous binder composition.
12. The aqueous binder composition of claim 11 , wherein the component (ii) comprises sulfamic acid.
13. The aqueous binder composition of claim 11 , wherein the component (ii) comprises N-cyclohexyl sulfamic acid.
14. The aqueous binder composition of claim 11 , wherein the component (ii) comprises one or both of cobalt sulfamate and nickel sulfamate.
15. The aqueous binder composition of claim 11 , wherein the component (i) comprises one or more carbohydrates having a dextrose equivalent (DE) value of from 60 to less than 100.
16. The aqueous binder composition of claim 11 , wherein the component (i) comprises a glucose syrup having a DE of from 60 to less than 100.
17. The aqueous binder composition of claim 11 , wherein the component (ii) is present in a concentration of 0.5-15 wt.-%, based on a mass of the component (i).
18. The aqueous binder composition of claim 11 , wherein the aqueous binder composition further comprises one or more compounds selected from ammonia and amines.
19. The aqueous binder composition of claim 11 , wherein the aqueous binder composition further comprises urea.
20. The aqueous binder composition of claim 11 , wherein the aqueous binder composition further comprises one or more fluorescent dyes which become non- fluorescent upon curing of the binder composition.