The present invention is a composite powder having microstructured particles with inhibitory calcium carbonate, obtainable by a method in which large particles are combined with small particles, wherein the large particles have an average in the range of 0.1 μm to 10 mm. Having a particle size, wherein the large particles comprise at least one polymer, the small particles are disposed on the surface of the large particles and / or are heterogeneously distributed within the large particles, the small particles being calcium carbonate particles The small particles have an average particle size in the range of 0.01 μm to 1.0 mm, and the small particles comprise at least 0.1% by weight of at least one weak acid relative to the total weight of the composition It relates to a composite powder obtainable by a method in which calcium carbonate particles are coated with a composition. Preferred application areas of the composite powder are additives, in particular polymer additives, for compounding, for the production of components, for applications in medical technology and / or microengineering and / or for the production of foamed articles, Including its use as an additive or starting material. Thus, the subject of the present invention is further a neurosurgery, oral surgery, jaw surgery, maxillofacial surgery, cervical surgery, nasal and ear surgery, and hand, foot, chest, rib and shoulder A component obtainable by selective laser sintering of a composition comprising a composite powder according to the invention, excluding implants for application in the field of surgery.本発明は、大粒子が小粒子と結び付けられる方法によって得ることができる、阻害性炭酸カルシウムを有する微細構造粒子を有する複合粉末であって、大粒子が、０．１μｍ～１０ｍｍの範囲内の平均粒径を有し、大粒子が、少なくとも１つのポリマーを含み、小粒子が、大粒子の表面上に配置され、かつ／または大粒子内に不均質に分布し、小粒子が、炭酸カルシウム粒子を含み、小粒子が、０．０１μｍ～１．０ｍｍの範囲内の平均粒径を有し、小粒子が、組成物の総重量に対して少なくとも０．１重量％の少なくとも１つの弱酸を含む組成物で炭酸カルシウム粒子がコーティングされる方法によって得ることができる、複合粉末に関する。複合粉末の好ましい適用領域は、配合のため、構成要素の生成のため、医療技術および／もしくはマイクロエンジニアリングにおける適用のため、ならびに／または発泡物品の生成のための、添加剤、特にポリマー添加剤、添加材料または出発材料としての
