Hot surface hydrolysis of polyphosphoric acid in spun yarns

Details Hot surface hydrolysis of polyphosphoric acid in spun yarns Hot surface hydrolysis of polyphosphoric acid in spun yarns

2011-06-28

2011-06-28

Johnson, Christina (Department: 1742)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S184000, C264S17800F, C264S211160, C264S211200, C528S423000

Reexamination Certificate

active

07968030

ABSTRACT:
The present invention relates to processes for hydrolyzing polyphosphoric acid in spun multifilament yarns.

REFERENCES:
patent: 3227793 (1966-01-01), Cipiani
patent: 3414645 (1968-12-01), Morgan, Jr.
patent: 3424720 (1969-01-01), Rudner et al.
patent: 3767756 (1973-10-01), Blades
patent: 3804804 (1974-04-01), Gerber et al.
patent: 3940955 (1976-03-01), Welsh
patent: 3996321 (1976-12-01), Weinberger
patent: 4002679 (1977-01-01), Arnold
patent: 4070431 (1978-01-01), Lewis et al.
patent: 4078034 (1978-03-01), Lewis
patent: 4079039 (1978-03-01), Gerber
patent: 4298565 (1981-11-01), Yang
patent: 4452971 (1984-06-01), Choe et al.
patent: 4533693 (1985-08-01), Wolfe et al.
patent: 4703103 (1987-10-01), Wolfe et al.
patent: 4772678 (1988-09-01), Sybert et al.
patent: 4774042 (1988-09-01), Schippers
patent: 4845150 (1989-07-01), Kovak et al.
patent: 4847350 (1989-07-01), Harris
patent: 4898924 (1990-02-01), Chenevey et al.
patent: 4939235 (1990-07-01), Harvey et al.
patent: 4963428 (1990-10-01), Harvey et al.
patent: 5041522 (1991-08-01), Dang et al.
patent: 5089591 (1992-02-01), Gregory et al.
patent: 5168011 (1992-12-01), Kovar et al.
patent: 5276128 (1994-01-01), Rosenberg et al.
patent: 5367042 (1994-11-01), Pierini et al.
patent: 5393478 (1995-02-01), Sen et al.
patent: 5429787 (1995-07-01), Im et al.
patent: 5525638 (1996-06-01), Sen et al.
patent: 5552221 (1996-09-01), So et al.
patent: 5667743 (1997-09-01), Tai et al.
patent: 5674969 (1997-10-01), Sikkema et al.
patent: 5772942 (1998-06-01), Teramoto et al.
patent: 6228922 (2001-05-01), Wang et al.
patent: 2003/0083421 (2003-05-01), Kumar et al.
patent: 2006/0019094 (2006-01-01), Lee
patent: 0 481 403 (1996-05-01), None
patent: 0 834 608 (2002-03-01), None
patent: 1 553 143 (2005-07-01), None
patent: 1 361 840 (1974-07-01), None
patent: 06-240596 (1994-08-01), None
patent: 09-78349 (1997-03-01), None
patent: WO 91/02764 (1991-03-01), None
patent: WO 94/12702 (1994-06-01), None
patent: WO 96/20303 (1996-07-01), None
patent: WO 99/27169 (1999-06-01), None
patent: WO2004/003080 (2004-01-01), None
patent: WO2004/003269 (2004-01-01), None
patent: WO2004/024797 (2004-02-01), None
patent: WO2006/014718 (2006-02-01), None
patent: WO2006/105076 (2006-10-01), None
patent: WO2006/105225 (2006-10-01), None
patent: WO2006/105226 (2006-10-01), None
patent: WO2006/105231 (2006-10-01), None
E S Krongauz et al., Polyphosphoric Acid in Cyclisation and Polycyclisation Reactions, 1970, Russian Chemical Reviews, 39, 747-765.
Gerber, A.H., “Thermally stable polymers derived from 2,3,5,6-tetraaminopyridine,” J. of Polymer Science, 1973, 11, 1703-1719.
Lammers, M.; et al., “Mechanical properties and structural transitions in the new rigid-rod polymer fibre PIPD (‘MS’) during the manufacturing process,” Elsevier Sci. Ltd., 1997, S0032-3861, 7 pages.
Sikkema, D.J., “Design, synthesis and properties of a novel rigid rod polymer, PIPD or ‘MS’: high modulus and tenacity fibers with substantial compressive strength,” Polymer, 1998, 39(24), 5981-5986.

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