Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-09-20
2005-09-20
Lipman, Bernard (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S475000, C524S503000, C524S598000
Reexamination Certificate
active
06946504
ABSTRACT:
Aqueous formulation for enhancing flowability and setting properties of gypsum, slurries, comprising wax, polyvinyl-alcohol and a sulphonated melamine polycondensate are used for imparting water repellency to gypsum wall boards.
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Finnegan Henderson Farabow Garrett & Dunner LLP
Lipman Bernard
Walker Industries Holding Limited
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