Polymeric compositions for medical packaging and devices

US6881790B1 · kind B1 · utility

Assignee

• Baxter International Inc. · US

Inventors

• Dean Laurin · Lake Zurich, US
• Angeles Lillian Buan · Crystal Lake, US
• Lecon Woo · Wilmington, US
• Michael T. K. Ling · Vernon Hills, US
• Yuan-pang Samuel Ding · Vernon Hills, US
• William H. Anderson · Hoffman Estates, US
• Larry A. Rosenbaum · Gurnee, US
• Denise S. Hayward · Mundelein, US
• Joseph P. Hoppesch · McHenry, US
• Gregg Nebgen · Burlington, US
• Stanley Westphal · East Dundee, US

Key dates

• Filing date: Jun 5, 1995
• Grant date: Apr 19, 2005
• Expiry date: Jun 5, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Multiple component polymer compositions for fabrication into articles. In particular, polymeric compositions comprising a heat resistant polymer; a radio frequency (“RF”) susceptible polymer; a compatibilizing polymer; the composition having physical properties within a range a<40,000 psi; b>=70%; c<30%; d>1.0; e<0.1%; f<0.1%; g>=0.05; h<=60%; i=0; wherein: a is the mechanical modulus of the composition measured according to ASTM D-882; b is the percent recovery in length of the composition after an initial 20% deformation; c is the optical haze of the composition being 9 mils in thickness according to ASTM D-1003; d is the loss tangent of the composition at 1 Hz measured at melt processing temperatures; e is the elemental halogen content by weight of the composition; f is the low molecular weight water soluble fraction of the composition; g is the dielectric loss between 1 and 60 MHz and over temperatures of 25 to 250° C. of the composition; h sample creep measured at 121° C. for a 1 inch strip of the composition under 27 psi loading; and, i indicates the composition exhibits no strain whitening after being strained at moderate speeds of about 20 inches (50 cm) per minute to about…