Fibers comprising starch and biodegradable polymers
First Claim
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1. A nonwoven web comprising highly attenuated fibers comprising:
- a. destructurized starch, b. a biodegradable thermoplastic polymer having a molecular weight of less than 500,000 g/mol; and
c. a plasticizer
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Abstract
Environmentally degradable finely attenuated fibers produced by melt spinning a composition comprising destructurized starch, a biodegradable thermoplastic polymer, and a plasticizer are disclosed. The present invention is also directed to highly attenuated fibers containing thermoplastic polymer microfibrils which are formed within the starch matrix of the finely attenuated fiber. Nonwoven webs and disposable articles comprising the highly attenuated fibers are also disclosed.
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Citations
6 Claims
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1. A nonwoven web comprising highly attenuated fibers comprising:
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a. destructurized starch, b. a biodegradable thermoplastic polymer having a molecular weight of less than 500,000 g/mol; and
c. a plasticizer - View Dependent Claims (2, 3)
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- 4. An nonwoven web comprising envionrmentally degradable, highly attenuated fibers comprising destructurized starch, a biodegradable thermoplastic polymer having a molecular weight of from 5,000 g/mol to 500,000 g/mol, and a plasticizer.
Specification