Elastomer composition, method for producing the same, and...

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...

Reexamination Certificate

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Details

C015S424000, C524S009000, C524S010000, C524S080000, C524S702000, C524S925000

Reexamination Certificate

active

07732523

ABSTRACT:
An elastomer composition is provided which contains a matrix of poly-(3-hydroxybutyrate-co-3-hydroxyhexanoate) produced from microorganisms and crosslinked natural rubber particles dispersed like islands in the matrix. An eraser using the elastomer composition is also provided. The present invention is capable of providing an elastomer composition and eraser using the same, which can be recycled, are friendly to the environment, and corresponds to the recycling society, without relying on fossil resources.

REFERENCES:
patent: 4393022 (1983-07-01), Handl
patent: 4796328 (1989-01-01), Horie
patent: 5922832 (1999-07-01), Randall et al.
patent: 10-274494 (1998-10-01), None
patent: 2000-043492 (2000-02-01), None
patent: 2000-095898 (2000-04-01), None
patent: 2000-159936 (2000-06-01), None
patent: 2000-319446 (2000-11-01), None
patent: 2003-183488 (2003-07-01), None
patent: 2003-292679 (2003-10-01), None
patent: 2004-143315 (2004-05-01), None
patent: 2004143315 (2004-05-01), None
patent: 2005-154586 (2005-06-01), None
patent: 2005255722 (2005-09-01), None
Machine Translation of JP 2005255722 A (2005).
Machine Translation of JP 2004143315 (2004).
Internationl Search Report dated Mar. 11, 2008.

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