JEFFREY G WALKER
Nursing at 21 Pl, Pompano Beach, FL
License number
Florida 9181443
Issued Date
Aug 16, 2001
Effective Date
Aug 16, 2001
Expiration Date
Apr 30, 2019
Category
Health Care
Type
Registered Nurse
Address
Address
2
10888 NW 21St Pl, Pompano Beach, FL 33071
7201 University Dr, Fort Lauderdale, FL 33321
7201 University Dr, Fort Lauderdale, FL 33321
Professional information
Highly Radiopaque Polyolefins And Method For Making The Same
US Patent:
6077880, Jun 20, 2000
Filed:
Jul 22, 1998
Appl. No.:
9/120414
Inventors:
Miguel Castillo - Hialeah FL
Joquin Villalobos - Miami FL
Jeffrey Walker - Fort Lauderdale FL
Joquin Villalobos - Miami FL
Jeffrey Walker - Fort Lauderdale FL
Assignee:
Cordis Corporation - Miami FL
International Classification:
C08J 704, A61L 2918, A61L 2908
US Classification:
523105
Abstract:
In accordance with the present invention there is provided a method for making a highly radiopaque polyolefin compound, wherein the radiopaque material in said compound is substantially uniformly dispersed and held within a polymer matrix. During the method one first heats an amount of polyolefin, preferably low density polyethylene, to at least its melting temperature. The amount of polyolefin is equal to at least 10% by weight of the compound. Then an amount of radiopaque metal powder is added to the polyolefin. The amount of radiopaque metal is equal to up to 90% by weight of the compound. The metal powder is preferably tantalum, tungsten, gold or platinum. Thereafter, an amount of a dispersing agent is added to the polyolefin to form a mixture. The amount of dispersing agent is equal to at least 0. 2% by weight of the compound.