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
2005-05-31
2005-05-31
Szekely, Peter (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C524S270000, C524S499000, C525S210000, C525S211000, C525S327400, C525S327900, C428S3550RA
Reexamination Certificate
active
06900274
ABSTRACT:
A process for preparing a surfactant, useful for dispersing tackifier resins in aqueous media, comprises reacting an αβ-unsaturated carboxylic acid or anhydride, or an ester thereof, with a terpene- or hydrocarbon-based resin to form an adduct, then reacting the adduct with a polyalkylene polyol to yield the surfactant. In a related embodiment, the surfactant is subsequently functionalized. Also disclosed are surfactants prepared using a disclosed process; compositions comprising a disclosed surfactant and a tackifier resin; aqueous dispersions comprising a disclosed surfactant; tackifier resin and water; adhesive compositions comprising a disclosed aqueous dispersion and a polymer latex; and pressure sensitive adhesive overlays prepared using a disclosed adhesive composition.
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Esp@cenetDatabase abstract for JP 2002-11337. Available from ep.espacenet.com.
Gergely, Jr. George L.
Ruckel Erwin R.
Thompson Kerry L.
Arizona Chemical Company
Barnes, III Thomas W.
Szekely Peter
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