Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1997-05-14
2000-02-08
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
428543, 521 53, 521 59, 521 841, 521143, 521146, 521149, 521150, 525 541, C08J 922, C08J 940, C08J 942
Patent
active
060229020
ABSTRACT:
Porous organic articles having no surface functionality may be treated by remote plasma discharge to thereby introduce functionality to the surface of the article. The functionality is introduced throughout the article's surface, including the exterior surface and the surfaces of the pores. Little or no degradation of the porous organic article occurs as a result of the functionalization. Amino, hydroxyl, carbonyl and carboxyl groups may be introduced to the article. In this way, an essentially inert hydrophobic porous article, made from, for example, polyethylene, can have its surface modified so that the surface becomes hydrophilic. The remote plasma discharge process causes essentially no change in the bulk properties of the organic article. The remote plasma discharge process is preferably conducted so that no photons, and particularly no ultraviolet radiation, is transmitted from the plasma glow to the porous article. The surface-functionalized article may be used, for example, as a solid support in organic synthesis or in the chromatographic purification of organic or biochemicals.
REFERENCES:
patent: 3992495 (1976-11-01), Sano et al.
patent: 4046843 (1977-09-01), Sano et al.
patent: 4346142 (1982-08-01), Lazear
patent: 4413074 (1983-11-01), Wrasidlo et al.
patent: 4571390 (1986-02-01), Sakagami et al.
patent: 4632842 (1986-12-01), Karwoski et al.
patent: 4845132 (1989-07-01), Masuoka et al.
patent: 4851121 (1989-07-01), Yokota et al.
patent: 5108607 (1992-04-01), Kraus et al.
patent: 5130024 (1992-07-01), Fujimoto et al.
patent: 5286382 (1994-02-01), Scarmoutzos et al.
patent: 5369012 (1994-11-01), Koontz et al.
patent: 5531899 (1996-07-01), Yen et al.
patent: 5543054 (1996-08-01), Charkoudian et al.
Yao et al., "The influence of the Surface Cross-linking of the High Density Polyethylene Induced by Plasma Treatment on the Durability of Treatment Efficiency," Journal of Applied Polymer Science, 48:57-65, 1993.
Fujimura et al., "Resist stripping in an O.sub.2 + H.sub.2 O plasma downstream," J. Vac. Sci. Technol., B9(2):357-361, Mar./Apr. 1991.
Chou et al., "Detailed model of the afterglow region of a microwave generated oxygen plasma," J. Appl. Phys. 72(3):870-878, 1992.
Deshmukh and Economou, "Remote plasma etching reactors: Modeling and experiment," J. Vac. Sci. Technol. B, 11(2):206-215, 1993.
Shard and Badyal, "Plasma versis ultraviolet enhanced oxidation of polyethylene," Polymer Communications, 32(7):217-219, 1991.
Koontz and Nordine, "The reaction efficiency of thermal energy oxygen atoms with polymeric materials," in Materials Degradation in Low Earth Orbit (LEO), 119th annual meeting of the Minerals, Metals & Materials Society in Anaheim, California, Feb., 17-22, 1990, pp. 189-205.
Badey et al., "A comparitive study of the effects of ammonia and hydrogen plasma downstream treatment on the surface modification of polytetrafluoroethylene," Polymer 37(8):1377-1386, 1996.
Wu et al., "Ammonia plasma treatment of Polyolefins for adhesive bonding with a cyanoacrylate adhesive," J. Adhesion Sci. Technol, 9(4):501-525, 1995.
Brennan et al., "Surface modification of ultra-high molecular weight polyethylene fibers by .gamma.-radiation-induced grafting," J. Adhesion Sci. Technol., 9(8):1031-1048, 1995.
Collaud et al., "Plasma treatment of polymers: the effect of the plasma parameters on the chemical, physical, and morphological states of the polymer surface and on the metal-polymer interface," J. Adhesion Sci. Technol., 8(10):115-1127, 1994.
Egitto and Matienzo, "Plasma modification of polymer surfaces for adhesion improvement," IBM J. Res. Develop., 38(4);423-439, Jul. 1994.
Foerch et al., "Modification of Polymer Surfaces by Two-Step Plasma Sensitized Reactions," Journal of Polymer Science: Part A: Polymer Chemistry, 28:803-809, 1990.
Foerch et al., A comparative study of the effects of remote nitrogen plasma, remote oxygen plasma, and corona discharge treatments on the surface properties of polyethylene,: J. Adhesion Sci. Technol., 5(7):549-564, 1991.
Foerch et al., "Oxidation of Polyethylene Surfaces by Remote Plasma Discharge: A Comparison Study with Alternative Oxidation Methods," Journal of Polymer Science: Part A: Polymer Chemistry, 28:193-204, 1990.
Girardeaux et al., "Ammonia Plasma Treatment to Tailor Pet Polymer Surface Chemistry for Biomedical Applications," Polymer. Prep., 36(1):91-92, 1995.
Gengenbach et al., "Restructuring of Polymer Surfaces Following Ammonia Plasma Treatment," Polym. Prepr., 34(2):104-105, 1993.
Koontz et al., "The Materials Chemistry of Atomic Oxygen with Applications to Anisotropic Etching of Submicron Structures in Microelectronics and the Surface Chemistry Engineering of Porous Solids," in NASA Conference Publication 3263, 1994, pp. 354-367.
Koontz et al., "Intelsat Solar Array Coupon Atomic Oxygen Flight Experiment," Journal of Spacecraft and Rockets 31(3): 475-481, 1994.
Yasuda et al., "Plasma-surface Interactions in the Plasma Modification of Polymer Surfaces," in Polymer Surfaces and Interfaces, Feast and Munro (eds.), John Wiley & Sons Ltd., 1987, pp. 149-162.
Barr Hardie R.
Foelak Morton
The United States of America as represented by the Administrator
LandOfFree
Porous article with surface functionality and method for prepari does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Porous article with surface functionality and method for prepari, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porous article with surface functionality and method for prepari will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1681787