Process for producing in-situ foam
AssigneeBASF SE
InventorsDaniela Longo-Schedel, Hans-Joachim Hähnle, Rebekka Von Benten, Frank Reuter
Life of this patent
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Abstract
A process for producing an in-situ foam comprising the following mixing components: one or more inorganic fillers A) at from 50 to 98 wt %, one or more cationic or amphoteric polymers B) at from 1 to 48 wt %, one or more surfactants C) at from 0.5 to 48 wt %, one or more crosslinkers D) capable of reacting with said polymers B) at from 0.01 to 5 wt %, one or more cell regulators E), selected from silicones, siliconates and carbon, at from 0.5 to 10 wt %, one or more additives F) at from 0 to 20 wt %, wherein the weight percentages of said components A) to F) are based on the nonaqueous fractions and the sum total of A) to F) adds up to 100 wt %.
Claims18
A process producing an in-situ foam comprising the following mixing components:
- comprising mixing components comprising:
- 50 to 98 wt % of one or more inorganic fillers A),
- 1 to 48 wt % of one or more cationic or amphoteric polymers B),
- 0.5 to 48 wt % of one or more surfactants C),
- 0.01 to 5 wt %, of one or more crosslinkers D) capable of reacting with said polymers B),
- 0.5 to 10 wt % of one or more cell regulators E), selected from the group consisting of silicones, siliconates and carbon,
- 0 to 20 wt % of one or more additives F),
- wherein the weight percentages of said components A) to F) are based on the nonaqueous fractions and the sum total of A) to F) does not exceed 100 wt %;
- and
- foaming with a gas or gas mixture under superatmospheric pressure and applying mechanical forces for producing an in-situ foam;
- wherein components B) and D) are stored separately and mixed together on site to produce the in-situ foam.
Dependencies are inferred from the claim text.