Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2003-02-26
2009-10-27
Eashoo, Mark (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
Reexamination Certificate
active
07608649
ABSTRACT:
Granular starch is added to a polymer in order to decrease the cost of the polymer derivative. Use of granular starch also makes the derivative more biodegradable. The polymer blend has very similar mechanical properties to pure polymer. Furthermore, unlike other starch/polyethylene mixtures, glycerol is not added to the mixture. This reduces the water absorbency of the final product. The polymer and starch are blended together in the presence of an interfacial compatibilizer that binds the two components together.
REFERENCES:
patent: 5115000 (1992-05-01), Jane et al.
patent: 5216075 (1993-06-01), Papazoglou
patent: 5415827 (1995-05-01), Tomka et al.
patent: 5461094 (1995-10-01), Yoo et al.
patent: 5496895 (1996-03-01), Chinnaswamy et al.
patent: 5500465 (1996-03-01), Krishnan et al.
patent: 5510401 (1996-04-01), Dehennau et al.
patent: 5627223 (1997-05-01), Dehennau et al.
patent: 5667574 (1997-09-01), Zhang
patent: 6231970 (2001-05-01), Andersen et al.
patent: 6242503 (2001-06-01), Kozma et al.
Yoo et al. (Journal of Applied Polymer Science, vol. 83, 767-776, 2002) (Available online Nov. 20, 2001).
“Effects Of Glycerol and PE-g-MA on Morphology, Thermal and Tensile Properties of LDPE and Rice Starch Blends”, Y.J. Wang, W. Liu, Z.Sun, Journal of Applied Polymer Science, vol. 92, 344-350, Aug. 12, 2003.
“Effects of Glycerol and PE-g-MA on Morphology, Thermal and Tensile Properties of LDPE and Rice Starch Blends”, Y.J. Wang, W. Liu, Z. Sun, Journal of Applied Polymer Science, vol. 92, 344-350, Aug. 12, 2003.
“Technology of Corn Wet Milling and Associated Processes,” Blanchard, Paul Harwood, Industrial Chemistry Library, vol. 4, 127-154, 1992.
Bhattacharya et al., “Properties of Blends of Starch and Synthetic Polymers Containing Anhydride Groups. II. Effect of Amylopectin to Amylose Ratio in Starch,” Journal of Applied Polymer Science, vol. 57 (1995), pp. 539-554.
Bikiaris et al., LDPE/Starch Blends Compatibilized with PE-g-MA Copolymers, Journal of Applied Polymer Science, vol. 70 (1998) pp. 1503-1521.
Bikiaris et al., “LDPE/plasticized starch blends containing PE-g-MA copolymer as compatibilizer,” Polymer Degradation and Stability, vol. 59 (1998) pp. 287-291.
Choi et al., “Synthesis and Characterization of Starch-g-Polycaprolactone Copolymer,” Macromolecules, vol. 32 (1999) pp. 7402-7408.
Dennenberg et al., “A New Biodegradable Plastic Made from Starch Graft Poly (methyl Acrylate) Copolymer,” Journal of Applied Polymer Science, vol. 22 (1978) pp. 459-465.
Fanta et al., “Starch-Poly (ethylene-co-Acrylic Acid) Composite Films. Effect of Processing Conditions on Morphology and Properties,” Journal of Applied Polymer Science, vol. 44 (1992) pp. 2037-2042.
Fanta et al., “Composites of Starch and Poly (ethylene-co-acrylic acid). Complexing between Polymeric Components,” Journal of Applied Polymer Science, vol. 40 (1990) pp. 811-821.
Anantha, et al., “60 Co Radiation Effect on Copolymers of Starch and Plastics1,” American Association of Cereal Chemists, Inc., vol. 73, No. 5 (1996), pp. 539-542.
Okaya et al., “Specific Interaction of Starch and Polyvinyl Alcohols Having Long Alkyl Groups,” Journal of Applied Polymer Science, vol. 45 (1992), pp. 1127-1134.
Otey et al, “Biodegradable Films from Starch and Ethylene-Acrylic Acid Copolymer,” Industrial & Engineering Chemistry Product Research and Development, vol. 16, No. 4 (1977), pp. 305-308.
Patil et al., “Graft Copolymerization of Starch with Methyl Acrylate: An Examination of Reaction Variables,” Journal of Applied Polymer Science, vol. 47 (1993), pp. 1765-1772.
Prinos et al., “Preparation and Characterization of LDPE/Starch Blends Containing Ethylene/Vinyl Acetate Copolymer as Compatibilizer,” Polymer Engineering and Science, vol. 38, No. 6 (May/Jun. 1998), pp. 954-964.
Psomiadou et al., Biodegradable films made from low density polyethylene (LDPE), wheat starch and soluble starch for food packaging applications. Part 2, Carbohydrate Polymers, vol. 33 (1997), pp. 227-242.
Sailaja et al., “Use of Maleic Anhydridge-Grafted Polyethylene as Compatibilzer for HDPE-Tapioca Starch Blends: Effects on Mechanical Properties,” Journal of Applied Polymer Science, vol. 80 (2001), pp. 863-872.
Seidenstucker et al., “Compounding Procedure, Processing Behaviour and Property Profiles of Polymeric Blends Based on Thermoplastic Poly(ester-urethanes) and Destructurized Starch,” Starch/Starke, vol. 51 (1999) Nr. 2-3 S., pp. 93-102.
Shogren et al., “Polymer Compatibility and Biodegradation of Starch-Poly (ethylene-co-acrylic acid)-Polyethylene Blends,” Journal of Applied Polymer Science, vol. 44 (1992), pp. 1971-1978.
J.L. Willett, Mechanical Properties of LDPE/Granular Starch Composites, vol. 54 (1994), pp. 1685-1695.
J.L. Willett, “The Role of Particle-Matrix Adhesion In Starch-Filled Composite Materials,” American Chemical Society, Division of Polymer Chemistry, Journal Title: Polymer preprints, Issue 39 (1999), pp. 112-113 and cover page.
Nast et al., “Aluminium-induced crystallisation of silicon on glass for thin-film solar cells,” Solar Energy Materials & Solar Cells, vol. 65 (2001), pp. 385-392.
Qi Fang, Information to Users: “Preparation and Characterization of Starch-Based Loose-Fill Packaging Foams,” A Dissertation Presented to the Faculty of The Graduate College in the University of Nebraska (May 1999), 238 pgs.
Liu Wanjun
Sun Zhenhua
Wang Ya-Jane
Cereplast, Inc.
Eashoo Mark
Heincer Liam J
K&L Gates LLP
LandOfFree
Biodegradable materials from starch-grafted 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 Biodegradable materials from starch-grafted polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biodegradable materials from starch-grafted polymers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4103694