Removable, water-whitening resistant pressure sensitive...

Details Removable, water-whitening resistant pressure sensitive... Removable, water-whitening resistant pressure sensitive...

2008-03-04

2008-03-04

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...

C524S556000, C524S561000, C524S745000, C524S747000, C524S831000, C524S833000, C525S375000

Reexamination Certificate

active

10671095

ABSTRACT:
Removable, water-whitening resistant pressure sensitive adhesive (PSA) comprising a crosslinked aqueous emulsion polymer comprising (a) at least one hydrophobic monomer; (b) at least about 2 wt. % of at least one hydrophilic monomer; and (c) at least about 5 wt. % of at least one partially hydrophilic monomer; wherein the crosslinked aqueous emulsion polymer is crosslinked with an effective amount of at least one polyfunctional aziridine crosslinker, and the wt. % of monomers (a), (b), and (c) are based on the total weight of monomers (a), (b), and (c).

REFERENCES:
patent: 5508107 (1996-04-01), Gutman et al.
patent: 5620796 (1997-04-01), Kawabata et al.
patent: 5969032 (1999-10-01), Phan et al.
patent: 6306497 (2001-10-01), Wang
patent: 0530729 (1993-03-01), None
Chemical Abstracts & Indexes, American Chemical Society, vol. 102, No. 18, p. 54, May 6, 1985, Columbus, US.

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