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Propylene polymers for lab/medical devices

A polymer, propylene technology, used in laboratory utensils, laboratory containers, hypodermic instruments, etc.

Inactive Publication Date: 2011-09-14
FINA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, previous attempts to create these articles have encountered difficulties in achieving a balance of radiation resistance, transparency and flexibility, among other properties

Method used

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  • Propylene polymers for lab/medical devices
  • Propylene polymers for lab/medical devices
  • Propylene polymers for lab/medical devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0067] Metallocene Catalyst System SiMe 2 (2-methyl-4-phenylindenyl) 2 ZrCl 2 A 40-melt flow ethylene / propylene random copolymer polypropylene (Example A) was prepared. A 40-melt flow ethylene / propylene random copolymer polypropylene (Example B) was prepared using the same metallocene catalyst system as in Example A. Example A had an ethylene content of 0.5% by weight and Example B had an ethylene content of 1.0% by weight. Examples A and B are formulated for laboratory and medical devices with high clarity, high toughness, and resistance to the levels of gamma radiation conventionally used to aseptically process polypropylene. Table 1 provides the characteristics of Example A.

[0068] Table 1. Characteristics of Example A

[0069] Melt flow rate (g / 10min)

Embodiment B

[0095] Example B: Random Copolymer Polypropylene Containing 1.0 wt% C2 Prepared Using Metallocene Catalyst Technology

Embodiment A

[0096] Example A: Random copolymer polypropylene containing 0.5% by weight of C2 prepared using metallocene catalyst technology

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Abstract

Polymer compositions and articles formed therefrom are described herein. The compositions include a random copolymer and a radiation additive, wherein the random copolymer includes propylene and less than 2 wt.% ethylene and exhibits a melt flow rate of from about 300 to 100 dg / min., the polymer composition exhibits a flexural modulus of from about 160 kpsi to about 200 kpsi and the polymer composition is adapted to produce a polymer article exhibiting low plate out, a haze at 20 mils of no greater than 15%, radiation stability and autoclavability.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application Serial No. 61 / 107,049, filed October 21, 2008. technical field [0003] Embodiments of the invention generally relate to polypropylene compositions. In particular, embodiments of the present invention relate to polypropylene compositions that may be used in radiation resistant applications. Background technique [0004] Laboratory and medical grade polymer articles are usually sterile. Sterilization of these polypropylene articles may include gamma-irradiation. Therefore, polypropylene articles exposed to radiation should be radiation stable. However, previous attempts to make these articles have encountered difficulties in achieving a balance of radiation resistance, transparency and flexibility, among other properties. [0005] Accordingly, there is a need to develop a polypropylene having a balance of these properties for use in forming medic...

Claims

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Application Information

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IPC IPC(8): B32B27/16
CPCC08K5/0083C08L23/142B01L3/5082B01L2200/12B01L3/0275B01L2300/12C08L2314/06C08L23/10C08L23/14C08L23/08C08K5/16A61M5/00
Inventor M·罗佩茨M·莫斯格拉夫
Owner FINA TECH
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