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US 2006/0134276 A1Published application
Sulphur dioxide release coatings
OwnerWilliam Potter, Stephen Rawling +1inventors
InventorsWilliam Potter, Stephen Rawling, Joseph Brennan
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Abstract
There is disclosed a sulphur dioxide releasing film comprising: a hydrophilic polymer which is swellable upon contact with moisture; calcium sulphate or sodium sulphate; and a latent acidulant.
Claims12
A sulphur dioxide releasing film comprising:
- a hydrophilic polymer which is swellable upon contact with moisture;
- calcium sulphite or sodium sulphite;
- and
- a latent acidulant.
1 more element
Dependencies are inferred from the claim text.