Biodegradable resin composition for molding and object...

Details Biodegradable resin composition for molding and object... Biodegradable resin composition for molding and object...

2007-02-06

2007-02-06

Cain, Edward J. (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C523S124000, C523S125000

Reexamination Certificate

active

10488498

ABSTRACT:
A biodegradable resin composition and an object molded or formed from the composition. The resin composition comprises: 100 parts by weight of a biodegradable polyester resin comprising not smaller than 50% by weight of polylactic acid having a melting point of not lower than 160° C., the biodegradable polyester resin having a melt flow rate of 0.1 to 50 g/10 min as measured under a load of 21.2 N at 190° C.; and 0.1 to 20 parts by weight of a phyllosilicate containing a primary, secondary or tertiary amine salt, a quaternary ammonium salt or a phosphonium salt ionically bonded between layers thereof.

REFERENCES:
patent: 5866645 (1999-02-01), Pinnavaia et al.
patent: 2000-17157 (2000-01-01), None
patent: 2001-89646 (2001-04-01), None
“Polymer Handbook”, Brandup et al ed., 1999.

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