公开(公告)号：US20170198077A1

公开(公告)日：2017-07-13

申请号：US15314720

申请日：2015-05-29

申请人： MENICON CO., LTD.

发明人： Eri ITO ,  Katsuhiro YAMAMOTO

IPC分类号： C08F283/12 ,  B29D11/00 ,  G02B1/04

CPC分类号： C08F283/12 ,  B29D11/00134 ,  B29K2083/00 ,  B29K2105/0058 ,  C08F290/06 ,  G02B1/043 ,  G02C7/04

摘要： A contact lens is provided as hydrate of a copolymer of at least three components including (I) both terminal-polymerizable silicone oligomer exhibiting viscosity of at least 200 mPa·s at room temperature, (II) a hydrophilic monomer component having ethylenically unsaturated group, and (III) a hydrophobic monomer component having molecular weight of at most 700, wherein the lens exhibits an elastic-modulus ratio determined as ratio of a rupture elastic modulus to an initial elastic modulus in range of 0.8-1.2. The contact lens is transparent and by combination of high oxygen permeability and balance between softness and mechanical properties. The lens is produced through a process including steps of stirring material-liquid including at least three components of the above-mentioned (I), (II) and (III) under stirring power of 5-10000 W/m3 per unit volume of the material-liquid for at least 10 minutes, and injecting stirred material-liquid into a lens mold to polymerize material-liquid.

公开(公告)号：US20170190126A1

公开(公告)日：2017-07-06

申请号：US15314677

申请日：2015-05-29

申请人： MENICON CO., LTD.

发明人： Eri ITO ,  Katsuhiro YAMAMOTO

IPC分类号： B29D11/00 ,  G02C7/04

CPC分类号： B29D11/00067 ,  B29D11/00038 ,  C08F290/068 ,  C08G77/20 ,  C08L2205/05 ,  G02B1/043 ,  G02C7/04 ,  G02C7/049 ,  C08F220/10 ,  C08L83/04 ,  C08F222/1006 ,  C08F226/06 ,  C08F230/08

摘要： A contact lens is provided as a hydrate of a copolymer of at least three components including (I) a both terminal-polymerizable silicone oligomer component that forms a hydrophobic region (A) in the copolymer, (II) a hydrophilic component that forms a hydrophilic region (C) in the copolymer, and (III) a hydrophobic monomer component having a molecular weight of at most 700 that forms the hydrophilic region (C) together with the component (II) and also contributes to form an intermediate region (B) which does not solvate with a hydrophilic solvent between the hydrophobic region (A) and hydrophilic region (C), wherein the intermediate region (B) shows a volume rate of 5 to 40% with respect to the region (A) in the copolymer, and the contact lens is transparent and free from bubbles therein.