IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0845936
(1986-03-31)
|
| 우선권정보 |
JP-0065015 (1985-03-30) |
|
발명자
/ 주소 |
- Izumitani Tetsuro (Tokyo JPX) Tarumi Niro (Tokyo JPX) Komiya Shigeo (Tokyo JPX) Sawamoto Takeyuki (Tokyo JPX)
|
| 출원인 / 주소 |
- Hoya Corporation (Tokyo JPX 02)
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| 인용정보 |
피인용 횟수 :
4 인용 특허 :
3 |
초록
▼
A high-hydration contact lens having a high strength is disclosed which is made of a copolymer composed of (i) 40 to 90 wt. % of N,N-dimethyl acrylamide, (ii) 5 to 50 wt. % of a hydrophobic monomer, (iii) 0.1 to 10 wt. % of an unsaturated carboxylic acid having one ethylenically unsaturated bond, an
A high-hydration contact lens having a high strength is disclosed which is made of a copolymer composed of (i) 40 to 90 wt. % of N,N-dimethyl acrylamide, (ii) 5 to 50 wt. % of a hydrophobic monomer, (iii) 0.1 to 10 wt. % of an unsaturated carboxylic acid having one ethylenically unsaturated bond, and (iv) 0.01 to 5.0 wt. % of a crosslinking agent, wherein the hydrophobic monomer is selected from the group consisting of phenyl acrylates, benzyl acrylates, phenyl methacrylates, benzyl methacrylates, alkyl acrylates, alkyl methacrylates, cyclohexyl acrylates and cyclohexyl methacrylates, and the crosslinking agent is selected from those represented by formula (I), (II), or (III) [Figure] (I) [Figure] (II) [Figure] (III) wherein X represents a hydrogen atom or a methyl group, a is an integer of 2 to 23, and b and c each is an integer of 2 to 14.
대표청구항
▼
A high-hydration contact lens with a water content of 60% or more which is made of a copolymer composed of (i) 40 to 90 wt% of N,N-dimethyl acrylamide, (ii) 5 to 50 wt% of a hydrophobic monomer, (iii) 0.1 to 10 wt% of an unsaturated carboxylic acid having one ethylenically unsaturated bond, and (iv)
A high-hydration contact lens with a water content of 60% or more which is made of a copolymer composed of (i) 40 to 90 wt% of N,N-dimethyl acrylamide, (ii) 5 to 50 wt% of a hydrophobic monomer, (iii) 0.1 to 10 wt% of an unsaturated carboxylic acid having one ethylenically unsaturated bond, and (iv) 0.01 to 5.0 wt% of a crosslinking agent, wherein the hydrophobic monomer is selected from the group consisting of phenyl acrylates, benzyl acrylates, phenyl methacrylates, benzyl methacrylates, alkyl acrylates, alkyl methacrylates, cyclohexyl acrylates and cyclohexyl methacrylates, and the crosslinking agent is selected from those represented by formula (I), (II), or (III) [Figure] (I) [Figure] (II) [Figure] (III) wherein X represents a hydrogen atom or a methyl group, a is an integer of 2 to 23, and b and c each is an integer of 2 to 14.
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