Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2008-03-18
2008-03-18
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S213000, C526S313000, C525S061000, C525S328800, C525S286000
Reexamination Certificate
active
11194722
ABSTRACT:
The present invention provides a production method of a hydroxyl-containing polymer including: protecting a hydroxyl group of a hydroxyl-containing monomer with a protecting group to make the monomer a protected monomer with decreased hydrophilicity; adding the protected monomer alone or together with a hydrophobic monomer to a water-based medium containing a salt and a dispersion stabilizer; adding a polymerization initiator to the mixture to carry out suspension polymerization; and de-protecting the obtained polymer having the protecting group to recover the hydroxyl group.
REFERENCES:
patent: 4238569 (1980-12-01), Lim et al.
patent: 5466555 (1995-11-01), Taguchi et al.
patent: 6107425 (2000-08-01), Sinta et al.
patent: 6576684 (2003-06-01), Desobry et al.
patent: 2004/0091709 (2004-05-01), Ohmura et al.
patent: 2004/0242813 (2004-12-01), Nesvadba et al.
patent: 60-122770 (1985-07-01), None
patent: 61-157513 (1986-07-01), None
patent: 62-95308 (1987-05-01), None
patent: 1-111769 (1989-04-01), None
patent: 3-239709 (1991-10-01), None
patent: 7-10943 (1995-01-01), None
patent: 2001-318086 (2001-11-01), None
patent: 2003-147005 (2003-05-01), None
Inaba Yoshihiro
Kobayashi Takako
Urano Chisato
Yamamoto Hiroshi
Bernshteyn M.
Fildes & Outland, P.C.
Fuji 'Xerox Co., Ltd.
Wu David W.
LandOfFree
Production method of hydroxyl-containing polymer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Production method of hydroxyl-containing polymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production method of hydroxyl-containing polymer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3919255