Modified polymeric composition
OwnerJohn Wayne Rimmerinventor
Life of this patent
Estimating the term…
Abstract
A polymeric composition including: (1) an addition polymer including at least 20 wt %, based on dry addition polymer weight, copolymerized vinyl ester monomer, (2) a protective colloid, and (3) 0.1 to 3.0 wt %, based on dry composition weight, olefin/maleic anhydride copolymer having an olefin/maleic anhydride molar ratio of 30/70 to 70/30, the composition in pulverulent or aqueous form, the composition optionally including a hydraulic substance such as cement. The invention also relates to a method for improving the water resistance of a dry or cured composition by using the composition.
Claims10
A pulverulent polymeric composition comprising:
- (1) an addition polymer comprising at least 20 wt %, based on dry addition polymer weight, copolymerized vinyl ester monomer, (2) a protective colloid, and (3) 0.1 to 3.0 wt %, based on dry composition weight, olefin/maleic anhydride copolymer having an olefin/maleic anhydride molar ratio of 30/70 to 70/30.
An aqueous polymeric composition comprising (1) an addition polymer comprising at least 20 wt %, based on dry addition polymer weight, copolymerized vinyl ester monomer, (2) a protective colloid, and (3) 0.1 to 3.0 wt %, based on dry composition weight, olefin/maleic anhydride copolymer having an olefin/maleic anhydride molar ratio of 30/70 to 70/30.
A method for improving the water resistance of a dry composition formed from an addition polymer comprising at least 20 wt %, based on dry addition polymer weight, copolymerized vinyl ester monomer and a protective colloid comprising admixing 0.1 to 3.0 wt %, based on dry composition weight, olefin/maleic anhydride copolymer having an olefin/maleic anhydride molar ratio of 30/70 to 70/30;
- and drying or curing said composition.
Dependencies are inferred from the claim text.