SILICONE (METH)ACRYLAMIDE MONOMER

• Main Authors: FUJISAWA KAZUHIKO, NAKAMURA MASATAKA, MAGGIO THOMAS L, TURNAGE MICHELLE CARMAN
• Format: Patent
• Language: English; Japanese
• Published: 26.03.2015
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; CONTACT LENSES; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a silicone hydrogel which has a high content of an acrylamide monomer and is transparent and excellent in balance between moisture content and wettability.SOLUTION: There is provided a silicone hydrogel which is obtained by polymerization of a polymerization stock solution containing a plurality kinds of monomers, where the polymerization stock solution contains 30 to 98 wt.% of at least one kind of silicone monomer based on the total amount of the monomer and the polymer component and contains 1 to 50 wt.% of one kind of non-silicone type (meth)acrylamide monomer having two or more hydroxyl groups in the molecule based on the total amount of the monomer and the polymer component. 【課題】 本発明は、アクリルアミドモノマー含有率が高く、かつ透明で含水率、濡れ性のバランスに優れたシリコーンハイドロゲルを提供することを目的とする。【解決手段】複数種のモノマーを含む重合原液を重合することにより得られるシリコーンハイドロゲルであって、該重合原液が、少なくとも１種類のシリコーンモノマーを、モノマー成分およびポリマー成分の合計量に対して３０〜９８重量％含み、かつ少なくとも１種類の、分子内に２つ以上の水酸基を有する非シリコーン系（メタ）アクリルアミドモノマーを、モノマー成分およびポリマー成分の合計量に対して１〜５０重量％含むことを特徴とするシリコーンハイドロゲルとする。【選択図】なし