| abstract |
There are many materials for coatings and binders for metal molds that contain an ethylenically unsaturated copolymer, a polymeric monomer-containing polymerizable polymeric monomer and an alkyl ester of such monomers. The copolymer comprises A) 10 and 25% by weight of methacrylic acid, B) 40 and 70% by weight of methyl acrylic acid, and C) 20 and 40% by weight of methyl methacryl here. The material can be used to form a coating, releasing the agents and their pH values of 6.5 and 7, or making them harder to mold, as well as being able to form coatings. coated with the aforesaid materials. \ t |