Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1996-04-08
1998-08-25
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526333, 526279, 5263182, C08F22206, C08F23008, C08F22202, C08F21614
Patent
active
057984255
ABSTRACT:
Disclosed is a co-polymer based on oxyalkyleneglycol alkenyl ethers and unsaturated dicarboxylic acid derivatives, as well as vinylic polyalkyleneglycol, polysiloxane or ester compounds. These co-polymers can be used as additives for hydraulic binding agents, especially cement. The co-polymers of the invention have an excellent and long-lasting liquefying action without introducing large amounts of air pores into the binding agent mixtures, thereby preventing the loss of strength and stability of the hardened building materials.
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Albrecht Gerhard
Kern Alfred
Penkner Johann
Weichmann Josef
Cheng Wu C.
Schofer Joseph L.
SKW Trostberg Aktiengesellschaft
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