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US 11,059,779 B2Granted
Storage stable aqueous organic peroxide emulsions
AssigneeNouryon Chemicals International B.V.
InventorsRené Gerritsen, Richard Hermannes Johannes Hekkert, Ester Elisabeth Antonia Keijzer
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Abstract
Aqueous emulsion comprising: —25-70 wt % organic peroxide, based on the weight of the emulsion, —a cyclohexane dicarboxylate ester, and —water. This emulsion is storage stable and can be used for the production of polymers, in particular PVC, that come into contact with food products.
Claims20
An aqueous organic peroxide emulsion comprising:
- 25-70 wt % organic peroxide, based on the weight of the emulsion,
- a droplet growth inhibitor comprising a cyclohexane dicarboxylate ester, wherein the cyclohexane dicarboxylate ester is present in an amount of 0.1-10 wt. %, based on the weight of the emulsion, and
- water.
An aqueous organic peroxide emulsion comprising:
- 25-70 wt % of an organic peroxide chosen from tert-butyl peroxyheptanoate, tert-butyl peroxyneodecanoate, tert-amyl peroxyneodecanoate and combinations thereof, based on the weight of the emulsion,
- 0.5 to 2 wt % di-isononyl cyclohexane dicarboxylate, based on the weight of the emulsion,
- 0.5 to 5 wt % of a protective colloid chosen from partially hydrolysed/saponified polyvinyl acetates, cellulose, cellulose derivatives, starch, starch derivatives, and combinations thereof;
- a non-ionic surfactant having a hydrophile-lipophile balance of 16 or higher,
- an anti-freeze agent chosen from methanol, ethanol, isopropanol, ethylene glycol, propanediol, glycerol, and mixtures thereof;
- and
- water,
- wherein a water/anti-freeze agent weight ratio is from 3/1 to 2/1.
5 more elements
Dependencies are inferred from the claim text.