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
2007-01-09
2007-01-09
Gulakowski, Randy (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C252S062200
Reexamination Certificate
active
10919522
ABSTRACT:
The object of the present invention is to provide a polymer alloy including polylactic acid which can be used in the same manner as conventional commodity plastics even in an environment of high temperature and high humidity. According to the present invention, there is provided a polymer alloy including polylactic acid comprising (A) a polylactic acid, (B) a polyalkylacrylic ester and/or a polyvinyl ester, (C) a polyolefin and (D) a block copolymer of a polyalkylacrylic ester and polyolefin and/or a block copolymer of a polyvinyl ester and a polyolefin.
REFERENCES:
patent: 5216050 (1993-06-01), Sinclair
patent: 5883199 (1999-03-01), McCarthy et al.
patent: 6-245866 (1996-09-01), None
patent: 09235455 (1997-09-01), None
JP 09235455 A English translation of abstract.
Ray, Suprakas Sinha, et al. “New Polyactide/Layered Silicate Nanocomposites,” Macromolecules 2002, 35, pp. 3104-3110. 2002 American Chemical Society, Published on Web Mar. 9, 2002.
Gajria, Ajay M. “Miscibility and biodegradability of blends of poly(lactic acid) and poly(vinyl acetate).” POLYMER, vol. 37, No. 3, 1996, pp. 437-444.
Kajiya Ryuuji
Matsumoto Takayuki
Matsuo Toshiaki
Okamoto Naruyasu
Gulakowski Randy
Hitachi , Ltd.
McDermott Will & Emery LLP
Toscano Alicia M.
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