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US 12,215,246 B2Granted
Composition comprising a light-weight filler
AssigneeHenkel AG & Co. KGaA
InventorsRalf Sauer, Michael Klotz, Thomas Zahn, Peter Born
Life of this patent
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Abstract
The present invention relates to compositions containing at least one reactive binder, at least one curing agent and/or accelerator, at least one thermally activatable blowing agent and at least one light-weight filler, wherein at least one expanded particle of at least one glass-rich volcanic rock with a closed outer shell is contained as a light-weight filler. The invention also relates to a method for stiffening and/or reinforcing components with thin-walled structures with a corresponding composition as well as to correspondingly produced components.
Claims20
A composition comprising:
- a) at least one reactive binder;
- b) at least one curing agent and/or accelerator;
- c) at least one thermally activatable blowing agent, the at least one thermally activatable blowing agent releasing gas after being heated to a temperature ranging from 120° C. to 220° C. for 10 to 150 minutes and being selected from solid polycarboxylic acids, salts of said solid polycarboxylic acids, and mixtures thereof;
- and
- d) at least one lightweight filler, wherein the at least one lightweight filler includes at least one expanded particle of at least one glass-rich volcanic rock, the glass-rich volcanic rock forms a closed outer shell, wherein the expanded particles have a bulk density of 100 kg/m3 to 500 kg/m3;
- and
- the composition is free of hollow glass spheres and free of polymer balloons, is foamable, has a density of 0.9 g/cm3 to 2 g/cm3, and is pumpable and stable at a temperature below 70° C. and at a pump pressure of up to 360 bar.
4 more elements
A composition comprising:
- a) at least one reactive binder;
- b) at least one curing agent and/or accelerator;
- c) at least one thermally activatable blowing agent, the at least one thermally activatable blowing agent releasing gas after being heated to a temperature ranging from 120° C. to 220° C. for 10 to 150 minutes and being selected from solid polycarboxylic acids, salts of said solid polycarboxylic acids, and mixtures thereof;
- and
- d) at least one lightweight filler, wherein the at least one lightweight filler includes at least one expanded particle of at least one glass-rich volcanic rock comprising perlite, said at least one expanded particle having a closed outer shell, a maximum particle size of less than 1,000 micron, a bulk density of 200 to 500 kg/m3;
- and exhibiting pressure stability such that the composition can be pumped at pump pressure of up to 360 bar without damage to the lightweight filler;
- wherein the composition is foamable, has a density of 0.9 g/cm3 to 1.2 g/cm3, and is pumpable and stable at a temperature below 70° C. and at a pump pressure of up to 360 bar.
4 more elements
A composition comprising:
- a) 5 to 50 wt. % of at least one reactive binder comprising:
- 1) a triglyceride fraction or oil containing the triglyceride fraction,
- 2) a liquid polybutadiene;
- and
- 3) a functionalized polybutadiene;
- b) at least one curing agent and at least one organic curing accelerator;
- c) 0.1 to 15 wt. % of at least one thermally activatable blowing agent;
- d) 1 to 35 wt. % of at least one lightweight filler, wherein the at least one lightweight filler includes expanded perlite particles having a closed outer shell, a maximum particle size of less than 1,000 micron and a bulk density of 200 to 500 kg/m3;
- and
- e) a combination of three or more inorganic fillers different from d), the combination comprising:
- 1) 21 to 30 wt. % calcium carbonate,
- 2) 2 wt. % to 15 wt. % of at least one sheet-like inorganic filler selected from graphite;
- 3) 0.1 to 4 wt. % of at least one rheology additive inorganic filler selected from silicon dioxide;
- wherein the composition is foamable, has a density of 0.9 g/cm3 to 1.2 g/cm3, and is pumpable and stable at a temperature below 70° C. and at a pump pressure of up to 360 bar without damage to d).
11 more elements
Dependencies are inferred from the claim text.