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US 8,507,595 B2Granted
Plasticizer composition
AssigneeNanoresins AG
InventorUwe Dietrich Kühner
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Abstract
The invention relates to a composition containing at least one plasticizer and silicon dioxide particles having an average particle size of 150 nm or less. According to the invention, the proportion of silicon dioxide particles is from 10 to 80% by weight and the proportion of plasticizer is from 90 to 20% by weight, where the sum of the proportions of silicon dioxide particles and of the plasticizer is at least 80% by weight. The invention makes it possible to mix nanoparticles into any polymeric materials in a simple way.
Claims31
A method of dispersing silicon dioxide particles in a polymeric material, comprising:
- a) providing a plasticizer composition comprising a dispersion of silicon dioxide particles and one or more plasticizers, wherein:
- i) said silicon dioxide particles have an average particle size of 150 nm or less;
- ii) the proportion of silicon dioxide particles is from 10 to 80% by weight of said plasticizer composition;
- iii) the proportion of said one or more plasticizers is from 90 to 20% by weight of said plasticizer composition;
- and
- iv) the sum of the proportions of silicon dioxide particles and of said one or more plasticizers is at least 80% by weight of said plasticizer composition;
- b) mixing said plasticizer composition with a polymerizable material to produce a polymeric material comprising dispersed silicon dioxide particles.
4 more elements
Dependencies are inferred from the claim text.