Biodegradable composite material
AssigneeCtk Research and Development Canada Ltd.
InventorsJitendra Panda, Saeid Tajbakhsh, Carlos Diaz
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Abstract
The present invention provides biodegradable composite materials comprising: a) a polymeric matrix comprising about 50-80% by weight of a cellulose alkanoate; about 0.1 to 10% by weight of a polyester, wherein the polyester is an aliphatic-aromatic copolyester, an aliphatic polyester, or a mixture of an aliphatic polyester and thermoplastic starch; about 10 to 20% by weight of a plasticizer; about 10 to 20% by weight of a flame-retardant component; optionally an inorganic filler; and b) a fibrous reinforcement material.
Claims28
A biodegradable composite material comprising:
- a) a polymeric matrix comprising:
- about 50 to 80% by weight of a cellulose alkanoate;
- about 0.1 to 10% by weight of a polyester, wherein the polyester is an aliphatic-aromatic copolyester, an aliphatic polyester, or a mixture of an aliphatic polyester and thermoplastic starch;
- about 10 to 30% by weight of a plasticizer;
- about 10 to 20% by weight of a flame-retardant component;
- optionally 0.1 to 10% of an inorganic filler;
- and
- b) a fibrous reinforcement material.
A biodegradable composition comprising:
- about 50-80% by weight of a cellulose alkanoate,
- about 0.1 to 10% by weight of a polyester, wherein the polyester is an aliphatic-aromatic copolyester, an aliphatic polyester, or a mixture of an aliphatic polyester and thermoplastic starch;
- about 10 to 30% by weight of a plasticizer;
- about 10 to 20% by weight of a flame-retardant component;
- and
- optionally an inorganic filler.
Dependencies are inferred from the claim text.