EMULSIONS CONTAINING CROSSLINKED AND NON-CROSSLINKED SILICONE POLYETHERS

• Main Author: LIN, ZUCHEN
• Format: Patent
• Language: English; French
• Published: 05.12.2002
• Edition: 7
• 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; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

Emulsions are prepared by heating and polymerizing a mixture containing (i) a non-crosslinked silicone polyether; (ii) optionally, a cosurfactant which can be a monohydroxy alcohol, diol, triol, or glycol ether; (iii) an Si-H containing polysiloxane; (iv) a monoalkenyl polyether; (v) an alpha ,Ω-diene, alpha ,Ω-diyne, or alpha ,Ω-ene-yne; (vi) optionally, a silicone oil such as (a) a low molecular weight linear or cyclic volatile methyl siloxane, or (b) a low molecular weight linear or cyclic volatile or non-volatile alkyl or aryl siloxane; (vii) a platinum catalyst; and (viii) water. L'invention concerne des émulsions préparées par chauffage et polymérisation d'un mélange contenant (i) un silicone polyéther non réticulé, (ii) éventuellement, un co- tensioactif qui peut être un alcool, un diol, un triol, ou un éther de glycol, (iii) un polysiloxane contenant Si-H, (iv) un polyéther monoalcényle, (v) un alpha ,Ω-diène, alpha ,Ω-diyne, ou alpha ,Ω-ène-yne, (vi) éventuellement, une huile silicone telle qu'un (a) méthylsiloxane volatile cyclique ou linéaire de bas poids moléculaire, ou (b) un alkyle ou arylsiloxane non volatile ou cyclique volatile ou linéaire de bas poids moléculaire, (vii) un catalyseur au platine, et (viii) de l'eau.