POLYURETHANES AS RHEOLOGICAL MODIFYING MEANS FOR COSMETIC PREPARATIONS

• Main Authors: VOLKER WENDEL, ANDREE DRAGON, WOOD CLAUDIA, ANDRE VALERIE, HOLGER TUERK, HELMUTH VOELLMAR, LAUBENDER MATTHIAS, MARKUS BUCHMANN
• Format: Patent
• Language: English; Japanese
• Published: 20.08.2015
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

PROBLEM TO BE SOLVED: To provide cosmetic preparations containing a novel polyurethane or mixtures thereof with rheological properties which does not change substantially over several weeks and is stable (rheological characteristics).SOLUTION: The present invention provides cosmetic preparations containing a water-dispersion polyurethane (PU) having a substantially linear principal chain which comprises hydrophilic sections and hydrophobic sections alternately. In the polyurethane, a. two terminal sections (Ts) are hydrophobicity, b. one hydrophilic section (S) is directly adjacent to each section T in any case, c. at least one hydrophobic section (D) is directly adjacent to each section S at at least one end, d. at least one hydrophilic section (P) exists and if two or more sections Ps exist, the two sections Ps are separated by at least one hydrophobic section D. 【課題】数週間に亘って実質的に変化せず、安定なレオロジー特性（流動学的特性）を備えた、新規ポリウレタンまたはその混合物を含む化粧用製剤の提供。【解決手段】親水性セクションと疎水性セクションを交互に含む実質的に直鎖状の主鎖を有する水分散性ポリウレタン(PU)を含む化粧用製剤であって、前記ポリウレタンでは、a.2つの末端セクション(T)が疎水性であり、b.いずれの場合も、1つの親水性セクション(S)が各セクションTに直接隣接しており、c.少なくとも1つの疎水性セクション(D)が少なくとも一端で各セクションSに直接隣接しており、d.少なくとも1つの親水性セクション(P)が存在し、2つ以上のセクションPが存在する場合は、少なくとも1つの疎水性セクションDが2つのセクションPを分離している化粧用製剤。【選択図】なし