Method for decomposing and reclaiming synthetic resin having...

Details Method for decomposing and reclaiming synthetic resin having... Method for decomposing and reclaiming synthetic resin having...

2011-07-26

2011-07-26

Seidleck, James (Department: 1765)

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

Synthetic resins

Process of treating scrap or waste product containing solid...

C521S040000, C521S040500, C521S041000, C528S480000, C528S499000, C528S500000, C528S501000, C528S503000, C562S580000, C562S589000

Reexamination Certificate

active

07985778

ABSTRACT:
Synthetic resin containing ester bond is subjected to hydrolysis treatment to reclaim raw material component before polymerization. Method for decomposing and reclaiming synthetic resin having ester bond in composition structure thereof, by conducting hydrolysis treatment and then separation collection treatment. In the hydrolysis treatment, article containing synthetic resin to be decomposed and reclaimed is exposed to water vapor atmosphere filled under saturation water vapor pressure at treatment temperature at or below melting point of the synthetic resin. The synthetic resin in article to be treated is hydrolyzed by water vapor generated at the treatment temperature, to generate decomposition product before polymerizing to the synthetic resin containing an ester bond. The separation collection treatment is treatment in which the decomposition product generated by the hydrolysis treatment is separated into liquid component and solid component to be collected individually.

REFERENCES:
patent: 5326791 (1994-07-01), Saleh et al.
patent: 6905600 (2005-06-01), Lee, Jr.
patent: 11-292777 (1999-10-01), None
patent: 2002-363336 (2002-12-01), None
patent: 2003-183507 (2003-07-01), None
patent: 2003-313283 (2003-11-01), None
patent: 2005-95729 (2005-04-01), None
patent: 2005-330211 (2005-12-01), None
Office translation of MIURA et al, JP 2005/095729.

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