Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From sulfur-containing reactant
Reexamination Certificate
2006-08-08
2006-08-08
Robertson, Jeffrey B. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From sulfur-containing reactant
C568S022000
Reexamination Certificate
active
07087708
ABSTRACT:
Compounds and polymers of such compounds are prepared based on the reaction product of a polysulfide containing diol and a dibasic acid, conveniently using an acid catalyst for the reaction. By appropriate choice of mole ratios, the resulting compound may have a hydroxyl and carboxyl, two hydroxyls or two carboxyls as terminal groups. The compounds can be modified by adding augmenting groups to change the terminal groups or properties of the monomer. The polymers find advantageous use as adhesives, sealants, coatings, paints, elastomers, plastic formulations, fibers, films and molded objects.
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Rappoport Leonid
Vainer Alex
Yam Aleksander
Lumen Intellectual Property Services Inc.
Polymeright, Inc.
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