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Polymer matrix composites comprising functional particles and methods of making the same

A composite material and polymer technology, applied in the field of preparing the polymer matrix composite material described in this article, can solve the problems of large back pressure and the like

Pending Publication Date: 2020-07-24
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the average size of the chromatographic resin particles is less than about 40 microns, the backpressure in a particle-packed column can become unacceptably large, especially for large columns useful for purification or separation of large biomolecules

Method used

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  • Polymer matrix composites comprising functional particles and methods of making the same
  • Polymer matrix composites comprising functional particles and methods of making the same
  • Polymer matrix composites comprising functional particles and methods of making the same

Examples

Experimental program
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Effect test

Embodiment 1

[0198] A 120 ml (4 oz) glass bottle was charged with 1.5 g of ultra-high molecular weight polyethylene (UHMWPE) (obtained from Celanese Corporation, Irving, Texas under the trade designation "GUR-2126"). TX)) and 15.0 g of functionalized oxazolone particles (obtained from 3M Company, St. Paul, MN under the trade designation "EMPHAZE AB-1BEADS" in St. Available under the trade designation "LABRAM RESONATA COUSTICMIXER" from Resodyn Inc., Butte, MT) Shake at 70% strength for 1 minute. 47.0 grams of low-odor kerosene (available from Alfa Aesar, Ward Hill, MA) was added to the mixture and stirred by hand with a spatula until a uniform slurry was obtained. The slurry was applied with a spatula to a 3 mil (75 micron) thermally stable polyethylene terephthalate (PET) pad (available under the trade designation "COATED PET ROLL #33716020500") at room temperature (approximately 25°C). from 3M Company), a 3 mil (75 micron) PET liner ("COATEPET ROLL #33716020500") was then applied on top...

Embodiment 2

[0202] Example 2 was prepared as described for Example 1 except that the functionalized oxazolone particles ("EMPHAZE AB-1BEADS") were replaced by 30 grams of jet milled cross-linked guanylated polyethyleneimine (G-PEI) (prepared as described in the Examples of U.S. Patent Publication 2017 / 0049926 (Langer-Anderson et al.), the disclosure of which is incorporated herein by reference), and 15 grams of 5 micron polyamide ( Granules were obtained from Arkema, King of Prussia, PA under the trade designation "ORGASOL" and 25 grams of low odor kerosene was used.

[0203] see Figure 5A and Figure 5B , shows a scanning electron microscope (SEM) digital image of a cross-section of a polymer matrix composite. The pristine functionalized G-PEI particles were not initially porous. The larger and darker jet milled G-PEI particles dispersed in the matrix at least partially dissolve or swell during the phase separation process and are separated by the smaller white polyamide filler parti...

Embodiment 3

[0207] Example 3 was prepared as described for Example 1 except that the functionalized oxazolone particles ("EMPHAZE AB-1BEADS") were replaced by 5 grams of low density glass bubbles with a dot pattern coating of nanosilver (available from 3M Company under the trade designation "3M GLASS BUBBLES K1 "), prepared as described in the Examples of US Patent 8,698,394 (McCutcheon et al.) and using 23 grams of low odor kerosene.

[0208] see Figure 6 , shows a scanning electron microscope (SEM) digital image of a cross-section of a polymer matrix composite. SEM shows the leaf-like lace polymer matrix structure surrounding the coated glass bubbles.

[0209] The resulting polymer matrix composite had a thickness of 29.6 mils (0.75 mm) and a thickness of 0.09 g / cm 3 Density, 4.1 micron pore size, and 5.9 sec / 50cm 3 Gurley Airflow.

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Abstract

A polymer matrix composite comprising a porous polymeric network; and a plurality of functional particles distributed within the polymeric network structure, and wherein the polymer matrix composite has an air flow resistance at 25 DEG C, as measured by the 'Air Flow Resistance Test', of less than 300 seconds / 50 cm3 / 500 micrometers; and wherein the polymer matrix composite has a density of at least 0.3 g / cm3; and methods for making the same. The polymer matrix composites are useful, for example, as filters.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application 62 / 587041, filed November 16, 2017, the disclosure of which is incorporated herein by reference in its entirety. Background technique [0003] Chromatographic resins are widely used within the biotechnology industry for the large-scale separation and / or purification of various biomolecules such as proteins, enzymes, vaccines, DNA and RNA. Column chromatography using high flow rates for purification is limited by particle size and stringent particle packing techniques to prevent bed ruptures that would cause contamination by-pass. If the average size of the chromatography resin particles is less than about 40 microns, the backpressure in a particle-packed column can become unacceptably large, especially for large columns that can be used for purification or separation of large biomolecules. Typical average particle sizes are no greater than 200 m...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28
CPCB01J20/26B01J20/28011B01J20/28026C08J9/28C08J2201/0522C08J2323/06C08J9/0061C08J2400/106B01D39/1676B01D2239/0407B01D2239/10B01D2239/1208B01J20/103B01J20/106B01J20/22B01J20/261B01J20/265B01J20/28021B01J20/3007B01J20/305
Inventor 杰拉尔德·K·拉斯穆森德里克·J·德纳小克林顿·P·沃勒巴拉特·R·阿查理雅萨蒂德尔·K·纳亚尔
Owner 3M INNOVATIVE PROPERTIES CO
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