C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/195
C08G 63/52 (2006.01) C04B 26/18 (2006.01) C08G 69/44 (2006.01) C08K 3/34 (2006.01) C08L 67/06 (2006.01) C08L 77/12 (2006.01)
Patent
CA 1299806
ABSTRACT Polymer modified unsaturated polyester or polyesteramide resins are prepared by reacting under polymerization conditions ethylenically unsaturated polycarboxylic acids or anhydrides with water, polyol or mixtures of polyols and polyamines, and a hydrocarbon mixture comprising esterifiable hydrocarbons such as dicyclopentadiene, ethylenically unsaturated aromatic hydrocarbons such as styrene or polymerized derivatives thereof, and non-reactive hydrocarbons. The polyester or polyesteramide resins have improved properties such as reduced shrinkage upon curing. When these resins are mixed with an aggregate mixture such as gravel, sand, and silica flour, polymer concrete composition is obtained. The polymer concrete compositions of the present invention have high mechanical strength and excellent compressive bond strength to both wet and dry concrete surfaces. 34,778A-F
528004
Hefner Robert E. Jr.
Smart & Biggar
The Dow Chemical Company
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