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
2006-10-03
2006-10-03
Wu, David W. (Department: 1713)
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...
C524S560000, C524S561000, C524S745000, C524S747000, C524S831000, C525S376000
Reexamination Certificate
active
07115682
ABSTRACT:
Removable pressure sensitive adhesive compositions having enhanced resistance to water-whitening comprising a crosslinked aqueous emulsion polymer are disclosed. The crosslinked aqueous emulsion polymer comprises (a) at least one hydrophobic monomer; (b) greater than 1 wt. % of at least one hydrophilic monomer; (c) greater than 3 wt. % of at least one mono-olefinically unsaturated monomer having an aldehyde or ketone group; (d) optionally at least one partially hydrophilic monomer; and (e) an effective amount of at least one water-soluble or water-dispersible polymerizable surfactant; wherein the crosslinked aqueous emulsion polymer is crosslinked with an effective amount of at least one polyhydrazide crosslinker, the wt. % of monomers (a), (b), (c) and (d) are based on the total weight of monomers (a), (b), (c) and (d), and the mean particle size of the crosslinked aqueous emulsion polymer is less than about 400 nm.
REFERENCES:
patent: 5663241 (1997-09-01), Takamatsu et al.
patent: 5928783 (1999-07-01), Phan et al.
patent: 5969032 (1999-10-01), Phan et al.
patent: 6242515 (2001-06-01), Zhao et al.
patent: 6444749 (2002-09-01), Mestach
Chen Augustin T.
Guo Jong-Shing
Trembley Sharon D.
Cytec Surface Specialties, Inc.
Lathrop & Gage L.C.
Sastri Satya B.
Wu David W.
LandOfFree
Removable, water-whitening resistant pressure sensitive... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Removable, water-whitening resistant pressure sensitive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removable, water-whitening resistant pressure sensitive... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3667645