Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-10-25
2005-10-25
Reddick, Judy M. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C264S176100, C525S059000
Reexamination Certificate
active
06958371
ABSTRACT:
The present invention discloses water-soluble compositions comprising a blend of poly(ethylene oxide) and poly(vinyl alcohol) that have improved ductility over water-soluble compositions comprising poly(vinyl alcohol) alone. In one desirable embodiment of the present invention, the poly(ethylene oxide) component of the blend is grafted. Grafted poly(ethylene oxide) resins have improved processability and improved blend compatibility with poly(vinyl alcohol). Films comprising a melt blend of poly(vinyl alcohol) and grafted poly(ethylene oxide) have improved melt processability as well as other improved properties. Films comprising compositions of the present invention have improved ductility over films comprising poly(vinyl alcohol) alone while retaining much of the high strength and water solubility exhibited by such poly(vinyl alcohol) films.
REFERENCES:
patent: 3597264 (1971-08-01), Sirota
patent: 3891584 (1975-06-01), Ray-Chaudhuri et al.
patent: 3984494 (1976-10-01), Harreus et al.
patent: 3996181 (1976-12-01), Hayashi et al.
patent: 4140668 (1979-02-01), Sumi et al.
patent: 4206101 (1980-06-01), Wysong
patent: 4215169 (1980-07-01), Wysong
patent: 4229334 (1980-10-01), Klabacka et al.
patent: 4284671 (1981-08-01), Cancio et al.
patent: 4620999 (1986-11-01), Holmes
patent: 4631215 (1986-12-01), Welygan et al.
patent: 4826493 (1989-05-01), Martini et al.
patent: 4933182 (1990-06-01), Higashi et al.
patent: 5342659 (1994-08-01), Horowitz et al.
patent: 5422387 (1995-06-01), Toms et al.
patent: 5430090 (1995-07-01), Miyamoto et al.
patent: 5508101 (1996-04-01), Patnode et al.
patent: 5567510 (1996-10-01), Patnode et al.
patent: 5583187 (1996-12-01), Sharak et al.
patent: 5641562 (1997-06-01), Larson et al.
patent: 5658977 (1997-08-01), Yang et al.
patent: 5700872 (1997-12-01), Wang et al.
patent: 6258427 (2001-07-01), Kerins et al.
patent: 0210754 (1987-02-01), None
patent: 241178 (1987-10-01), None
patent: 0612773 (1994-08-01), None
patent: 0654504 (1995-04-01), None
patent: 0705934 (1996-04-01), None
patent: 0 792 916 (1997-09-01), None
patent: 51077632 (1976-07-01), None
patent: 58-67766 (1983-04-01), None
patent: 61-181859 (1986-08-01), None
patent: 6-142127 (1994-05-01), None
patent: WO 92/04412 (1992-03-01), None
patent: WO 94/10257 (1994-05-01), None
patent: WO 96/20738 (1996-07-01), None
Ikejima, T., et al., Infrared Analysis on Blends of Poly (3-Hydrooxybutyric Acid) and Stereoregular Poly (Vinyl Alcohol): Influence of Tecticity of Poly (Vinyl Alcohol) on Crystallization of Poly (3-Hydroxybutyric Acid),Macromolecular Chemistry and Physics, vol.-Issue 197(3), pp.: 869-888, Mar. 1, 1996.
Williams et al., Biodegradable Plastics from Plants,Chemtech, pp.: 38-44, Sep. 1, 1996.
Derwent Publications Ltd., Database WPI, JP 08 212995 (Misubishi Paper Mills Ltd.), Aug. 20, 1996.
Derwent Publications Ltd., Database WPI, JP 01 246411 (Sawashita A), Oct. 2, 1989.
Schertz David Michael
Wang James Hongxue
Brinks Hofer Gilson & Lione
Kimberly--Clark Worldwide, Inc.
Reddick Judy M.
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