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
2007-01-17
2008-03-18
Rabago, Roberto (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S355000, C525S356000, C525S358000
Reexamination Certificate
active
07345114
ABSTRACT:
According to the present invention, during or after the process of separating an aqueous solution of hydrochloric acid by-produced from a chlorinated vinyl chloride resin slurry obtained by chlorinating vinyl chloride resin or a copolymer of vinyl chloride and another copolymerizable monomer, hypochlorite is added to the chlorinated vinyl chloride slurry or water-containing resin. Due to this, the concentration of hydrochloric acid in the chlorinated vinyl chloride resin or chlorinated vinyl chloride copolymer resin before drying is reduced, and the problem of removing hydrochloric acid in the subsequent drying treatment is reduced, whereby the problem of corrosion of a drier can be reduced.
REFERENCES:
patent: 5359011 (1994-10-01), Vielhaber et al.
patent: 46-17128 (1971-05-01), None
patent: 2001-011116 (2001-01-01), None
patent: 2003-238615 (2003-08-01), None
patent: 2004-099669 (2004-04-01), None
Kawamura Yusuke
Yoshimi Tomoyuki
Hamre Schumann Mueller & Larson P.C.
Kaneka Corporation
Rabago Roberto
LandOfFree
Method for producing chlorinated vinyl chloride resin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing chlorinated vinyl chloride resin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing chlorinated vinyl chloride resin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3968575