Blush resistant adhesives used in bottle labeling

Details Blush resistant adhesives used in bottle labeling Blush resistant adhesives used in bottle labeling

2008-04-22

2008-04-22

Woodward, Ana (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...

C525S183000, C525S329700, C525S329900, C525S330100, C525S330300

Reexamination Certificate

active

07361713

ABSTRACT:
This invention is directed to an improvement in acrylic based adhesives that are particularly suited for use in the application of paper and plastic labels onto glass surfaces, such as in bottle labeling. The base adhesive is comprised of an emulsion polymerized acrylic copolymer having acid functionality, e.g., carboxyl or sulfonic acid functionality; wherein the emulsion polymerization is carried out in the presence of a stabilizer system comprising a polymer containing polymerized units of carboxylic acid. The improvement for enhancing the blush resistance of the adhesive resides in incorporating a long chain crosslinking polyamine or polyamide containing residual amines.

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patent: WO 01/98422 (2001-12-01), None
patent: WO 03/029378 (2003-04-01), None

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