摘要:
The present invention relates to a solid rubber adhesion promoter composition. It comprises 20-90%, preferably 60-80% by weight of cobalt naphthenate, nickel naphthenate or a mixture thereof and 10-80%, preferably 20-40% by weight of cobalt resinate, nickel resinate or a mixture thereof. The composition can be produced in the form of crisp, non-dusting, friable cast solids, powders or flakes. It has a long shelf life and mixes very well into rubber compounds. By the use of the present promoter compositions strong rubber-to-metal adhesion is obtained.
摘要:
The invention provides pentabasic lead fumarate as a novel compound to be used as stabilizer for halogen-containing plastics. The novel compound displays an improved stabilizing action as compared with known stabilizers and a higher degree of whiteness.
摘要:
57 The invention relates to metal carboxylate derivatives of partially esterified a-olefin unsaturated polycarboxylic acid copolymers, the a-olefin containing 6 to 40 carbon atoms and the copolymer being esterified with an alcohol. At least 80 percent by weight of the unesterified copolymer has a molecular weight in the range from 1000 to 100000. Preferably, the a-olefin is maleic anhydride and the alcohol contains 4 to 18 carbon atoms. The present compounds are surprisingly satisfactory internal and external lubricants for synthetic resin such as PVC. Furthermore, the present compounds can be used as emulsifying and/or suspending agents, in particular wnen the alcohol is a polyethylene oxide glycol ether with 1 to 50 ethylene oxide units.