A hardenable two part acrylic composition is described for the treatment of human or animal bone is described. The composition comprises a storage stable liquid first part and a storage stable liquid second part which react with each other upon mixing to form a cement which hardens. The composition further comprises an acrylic monomer component and an initiator component in an amount effective to polymerize the monomer component. The monomer component and the initiator component are generally located in separate parts of the two part composition so that the monomer component is storage stable. The liquid first part comprises emulsion polymerized acrylic polymer particles in a liquid carrier. A method of producing a hardenable two part acrylic composition is also described. The composition is particularly useful in a syringe or caulking gun having at least two barrels.本發明描述一種可硬化二液型丙烯酸組成物，其用於處理人類或動物骨骼。該組成物包含穩定儲存之第一液體部分及穩定儲存之第二液體部分，該等部分在混合時彼此反應形成硬化之黏合劑(cement)。該組成物進一步包含丙烯酸單體組分及含量可使單體組分有效聚合之引發劑組分。該單體組分及該引發劑組分一般呈分開部份位於該二液型組成物中，使得單體組分穩定儲存。第一液體部分包含乳液聚合丙烯酸聚合物粒子於液體載劑中。亦描述一種製造可硬化二液型丙烯酸組成物之方法。該組成物尤其適用於具有至少兩個筒身之注射器或填縫槍。
