EMULSIONS OF BRANCHED ORGANOPOLYSILOXANES

• Main Authors: CAUVIN SEVERINE, KENNEDY ROBERT D, LIU YIHAN, DEKLIPPEL LORRY
• Format: Patent
• Language: English; Korean
• Published: 30.09.2016
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

본 발명은 분지형 오가노폴리실록산 및 이의 에멀젼, 및 분지형 오가노폴리실록산 및 이의 에멀젼의 제조 방법 및 사용에 관한 것이다. 분지형 오가노폴리실록산은 불활성 유체 및 포스파젠 촉매와 같은 촉매의 존재 하에 규소에 결합된 적어도 하나의 하이드록실 기 또는 가수분해성 기를 함유하는 실질적으로 선형인 오가노폴리실록산과 분지화제의 반응에 의해 제조된다. 포스파젠 촉매는 또한 중합 생성물 중 바람직하지 않은 저분자량 사이클릭 실리콘의 함량이 낮다는 이점을 갖는다. The invention relates to branched organopolysiloxanes and emulsions thereof, and to methods of preparation and uses of the branched organopolysiloxanes and emulsions thereof. A branched organopolysiloxane is prepared by the reaction of a branching agent with a substantially linear organopolysiloxane containing at least one hydroxyl or hydrolysable group bonded to silicon, in the presence of an inert fluid and a catalyst, such as a phosphazene catalyst. Phosphazene catalysts also have the advantage that the content of undesired low molecular weight cyclic silicones in the polymerisation product is low.