The invention relates to a hardenable multi-part liquid acrylic composition. The composition comprises a storage stable liquid first part, a storage stable liquid second part and optionally, a third or further liquid parts. The parts are operable to form a cement which hardens to a solid upon mixing of the parts together. The composition comprises an acrylic monomer component, an initiator component, acrylic polymer particles and a radiopacifying filler. The initiator component is present in an amount effective to polymerize the acrylic monomer component upon being mixed and/or activated therewith. At least some of the radiopacifying filler is encapsulated within and/or adsorbed on the acrylic polymer particles in a liquid part. The invention extends to an at least twin barreled syringe or caulking gun accommodating the multi-part composition, a method of producing the multi-part composition, a composition for use as bone cement composition or in dental repairs, a liquid composition comprising a first sub-population of emulsion or non-emulsion polymerized acrylic polymer particles and radiopacifying filler encapsulated and/or adsorbed in the first sub-population of acrylic polymer particles and bone cement compositions or dental compositions.本發明係關於一種可硬化多部份液體丙烯酸組成物。該組成物包含儲存穩定液體第一部份、儲存穩定液體第二部份及視情況存在之第三或其他液體部份。可操作該等部份以形成當將該等部份混合在一起時硬化成固體之水泥。該組成物包含丙烯酸單體組分、引發劑組分、丙烯酸聚合物粒子及射線不透性填充劑。該引發劑組分以在與該丙烯酸單體組分混合及/或活化時將該丙烯酸單體組分有效聚合之量存在。該射線不透性填充劑中之至少一些囊封在液體部份中之該等丙烯酸聚合物粒子內及/或吸附於該等丙烯酸聚合物粒子上。本發明延伸至一種容納該多部份組成物之至少雙管注射器或填縫槍、一種生產該多部份組成物之方法、一種用作骨泥組成物或用於牙科修復之組成物、一種包含乳化或非乳化聚合丙烯酸聚合物粒子之第一亞群及囊封及/或吸附於丙烯酸聚合物粒子之該第一亞群中之射線不透性填充劑之液體組成物及骨泥組成物或牙科組成物。
