Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Patent
1993-03-10
1994-10-18
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
528 12, 528 28, 427489, C08G 7706
Patent
active
053570154
ABSTRACT:
The present invention relates to methods of accelerated curing of condensation polymers or inducing cross-linking of polymers by a direct current corona or glow discharge applied to the polymer bulk. The methods permit low temperature removal of volatile components from a material without inducing a chemical reaction or local heating. These methods have been employed to prepare fracture-free polysiloxane films up to 100 .mu.m in thickness with curing time reduced by several orders of magnitude. A variety of metal ions, non-linear optical molecules or laser dyes may be incorporated in the films. The surface hydrophilicity of films may also be modified by this treatment. Additionally, an electrically conductive surface layer has been produced by incorporation of an appropriate dopant. Multilayered optical waveguide or lasing structures may be produced by this technique by successive deposition of spun films and curing.
REFERENCES:
patent: 4085248 (1978-04-01), Zehender et al.
patent: 4238590 (1980-12-01), Scholze et al.
patent: 4429024 (1984-01-01), Ueno et al.
patent: 4478873 (1984-10-01), Masso et al.
patent: 4492733 (1985-01-01), Phillips et al.
patent: 4539232 (1985-09-01), Burzynski et al.
patent: 4604443 (1986-08-01), Chang et al.
patent: 4754012 (1988-06-01), Yoldas et al.
patent: 5008219 (1991-04-01), Hara
patent: 5045592 (1991-09-01), Weiss et al.
D. Avnir et al., "Alcohol is an Unnecessary Additive in the Silicon Alkoxide Sol-Gel Process," J. of Non-Crys. Solids 192 (1987) 180-182.
CA Abstract 59509j, "Light-Conducting Systems," 74-Radiation Chem., Photochem., vol. 67 (1967) 5591.
Sakka, "Formation of Glass and Amorphous Oxide Fibers From Solution," Mat. Res. Soc. Symp. Proc. vol. 32 (1984) 91-99.
Dislich, "Thin Films from the Sol-Gel Process," Sol-Gel Technology, 50-79.
Kaufman et al., "Structural Changes along the Sol-Gel-Xerogel Transition in Silica As Probed by Pyrene Excited-State Emission," Langmuir, vol. 2, No. 6 (1986) 717-722.
Zhang et al., "Synthesis and Characterization of Silicon Oxycarbide Glasses," J. Am. Ceram. Soc., 73[4](1990) 958-63.
Haruvy et al., Abstract, "Poling and Chemical-Binding of Glass-Embodied Chromophores in Supported Sol-Gel Thin-Film Glasses for Second Harmonic".
Haruvy et al., "Poling and Chemical-Binding of Glass-Embodied Chromophores in Supported Sol-Gel Thin-Film Glasses for Second Harmonic Generation".
Dislich et al., "Light Guide Systems for the Ultraviolet Region of the Spectrum," Angewandte, vol. 12[6](1973) 439-516.
Fujii et al., "Absorption and Fluorescence Evidences for Stable Capsuling of Rhodamine B in Tetraethoxy Silane Xerogel," Chem. Exp. vol. 4[1](1989) 1-4.
Kobayashi et al., "A Transparent Alumina Film Doped with Laser Dye and its Emission Properties," J. of Non-Crys. Solids 105 (1988) 198-200.
Yoldas, "Preparation of Glasses and Ceramics From Metal-Organic Compounds," J. of Mat. Sci. 12 (1977) 1203-1208.
Reisfield, "Criteria and Prospects of New Lasers Based on Fluorescent Dyes in Glasses," J. De Physique (1987) C7-423-C7-426.
Reisfled et al., "A new Solid-State Tunable Laser in the Visible," Chemical Physics Letters, vol. 160, No. 1 (Jul. 28, 1989) pp. 43-44.
Kim & Plawsky, "Second Harmonic Generation in Organically Modified Sol-Gel Films," Chem. Mater., 4:249-252, 1992.
Laine, "Chemical Processing of Glasses," SPIE, 1328:16-28, 1990.
Reisfeld, "Theory and Application of spectroscopically Active Glasses Prepared by the Sol-Gel Method," SPIE, 1328:29-39, 1990.
Sanchez, "Optical Properties of Transition Metal Oxide Gels," SPIE, 1328:40-51, 1990.
Schmidt & Popall, "Inorganic-Organic Composites (ORMOCERs) for Optical Application," SPIE, 1328:249-257, 1990.
Uhlmann et al., "Sol Gel Synthesis of Optical Thin Films and Coatings," SPIE, 1328:270-294, 1990.
Haruvy Yair
Webber Stephen E.
Bleutge John C.
Board of Regents The University of Texas
Glass Margaret W.
LandOfFree
Electric field curing of polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric field curing of polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric field curing of polymers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2373699