Biodegradable synthetic resin sheet material containing starch and a fatty material
AssigneeColoroll Limited
InventorGerald Joseph Louis Griffin
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Abstract
A biodegradable composition comprises a synthetic resin, a biodegradable granular filler such as natural starch and preferably a substance autoxidizable to yield a peroxide which attacks the carbon to carbon linkages in the resin.
Claims6
A biodegradable synthetic polymeric composition consisting essentially of a polymer having carbon to carbon linkages and dispersed therein from 5 to 50% by weight particles of a biodegradable substance and up to 5.5% by weight of an auto-oxidizable substance containing at least one double bond which when in contact with a transition metal salt auto-oxidizes to generate a peroxide or a hydroperoxide, said substance being selected from the group consisting of a fatty acid, a fatty acid ester, a natural fat, and mixtures thereof, whereby said polymeric composition when disposed in soil containing a transition metal salt will be biodegraded at a rate faster than a similar product free from said substance.
Dependencies are inferred from the claim text.