Degradable blend composition
AssigneeThe B. F. Goodrich Company
InventorsYona Eckstein, William Robert Wilber, Witoki Szydlowski
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Abstract
The present invention provides a blend composition comprising a thermoplastic polyurethane and an acrylic acid copolymer wherein the thermoplastic polyurethane forms the discontinuous phase of the blend. The blend can be used in films or made into fibers for personal care products such as ostomy bags and diapers. Moreover, such materials are also useful for packaging products such as garbage bags.
Claims20
A water degradable composition comprising melt a blend of a thermoplastic polyurethane and acrylic acid copolymer wherein said thermoplastic polyurethane forms the discontinuous phase of the blend and said acrylic acid copolymer forms a continuous phase.
A degradable composition consisting essentially of a blend of about 10 to about 40 weight percent of a thermoplastic polyurethane and from about 90 to 60 weight percent acrylic acid copolymer having at least 4 weight percent carboxyl functionality, said carboxyl functionality being based upon the weight of said acrylic copolymer, and optionally including lubricant(s), additive(s) and compatibilizer(s).
A personal care product formed from a water degradable composition comprising a melt blend of a thermoplastic polyurethane and an acrylic acid copolymer, said acrylic acid copolymer having a weight average molecular weight from about 100,000 to about 300,000 and wherein the thermoplastic polyurethane forms the discontinuous phase of the blend.
A packaging product formed from a water degradable composition comprising a melt blend of a thermoplastic polyurethane and an acrylic acid copolymer, said acrylic acid copolymer having a weight average molecular weight from about 100,000 to about 300,000 and wherein the thermoplastic polyurethane forms the discontinuous phase of the blend.
Dependencies are inferred from the claim text.