CAS: 579-56-6; Isoxsuprine Hydrochloride

专利信息

专利号:US-8354116-B2
优先权日:2007-06-18
标题 :Bifunctional synthetic molecules
发明人：CARTER STEPHEN G; PATEL KANU; ZHU ZHEN; QIAO LIXIN
权利人:BIOCHEMICS INC; CARTER STEPHEN G; PATEL KANU; ZHU ZHEN; QIAO LIXIN
摘要:The synthesis and use of bifunctional molecules to improve the topical and transdermal delivery efficiency of various types of therapeutic agents or agents designed to promote the transdermal delivery of those therapeutic agents either into the skin tissue or into the systemic circulation. Three major classes of molecules are covalently joined as bifunctional substances; chemical vasodilators, passive dermal penetration enhancers and therapeutic or diagnostic drugs. Chemical vasodilators may be delivered into the skin to increasing the blood flow in a tissue that has compromised circulation or they may be used as part of a delivery vehicle to promote the delivery of the drug. Passive dermal penetration enhancers are those chemicals that promote the passive penetration of drugs and other chemicals through the stratum corneum and epidermis of the skin tissue. Drugs and diagnostic agents are the third group of chemicals that are candidates for the linkage of molecules.

专利号:US-2014315720-A1
优先权日:2012-10-24
标 题 :Polysaccharide ester microspheres and methods and articles relating thereto
发明人：FALLON DENIS G; GARRETT THOMAS S; KIZER LAWTON E; ZAZZARA KAREN L; COMBS MICHAEL T; JOHNSON RICHARD K; DEHART GARY
权利人:CELANESE ACETATE LLC
摘要:A method for producing a polysaccharide ester microsphere may include forming a polysaccharide ester product from a polysaccharide synthesis, wherein the polysaccharide ester product comprises a polysaccharide ester and a solvent; diluting the polysaccharide ester product, thereby yielding a polysaccharide ester dope; and forming a plurality of polysaccharide ester microspheres from the polysaccharide ester dope. Suitable polysaccharides may include, but are not limited to, starch, cellulose, hemicellulose, algenates, chitosan, and any combination thereof. Esters thereof may be organic esters (e.g., acetate and the like), inorganic esters (e.g., sulfonates and the like), or combinations thereof. Further, the solids conent of the polysaccharide ester dope, in some instances, may be greater than about 16 wt %.