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US 12,251,670 B2Granted
Production of nanoscale emulsion
AssigneeBDC-Technology Oy
InventorJuha Koskela
Life of this patent
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Abstract
The present invention relates to a method of producing a wood and textile fibre protection composition from tall oil pitch. The present invention also relates to a wood and textile fibre protection composition comprising tall oil pitch and use of the composition as a wood and textile fibre protection agent.
Claims8
A method of producing a nanoscale tall oil pitch emulsion, wherein the method comprises the following steps:
- a) providing an aqueous solution of an alkaline agent, wherein the aqueous solution has a pH in the range of 8 to 13,
- b) providing tall oil rosin,
- c) mixing the tall oil rosin with the aqueous solution of the alkaline agent to produce a tall oil rosin solution,
- d) providing an organic solvent having a hydrocarbon chain of 1 to 6 carbons,
- e) mixing the organic solvent having a hydrocarbon chain of 1 to 6 carbons with the tall oil rosin solution to produce an organic solution-tall oil rosin solution,
- f) providing tall oil pitch,
- g) adding the tall oil pitch to the organic solution-tall oil rosin solution under homogenization in a homogenizer to produce the nanoscale tall oil pitch emulsion comprising tall oil pitch in an amount of 5-25 wt-%
- wherein the homogenizer is a sonicator.
5 more elements
Dependencies are inferred from the claim text.