IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0164697
(1993-12-09)
|
우선권정보 |
JP-0353170 (1992-12-11); JP-0090548 (1993-03-26); JP-0301248 (1993-11-05) |
발명자
/ 주소 |
- Hori Yoji (Kanagawa JPX) Yamaguchi Akio (Kanagawa JPX)
|
출원인 / 주소 |
- Takasago International Corporation (Tokyo JPX 03)
|
인용정보 |
피인용 횟수 :
56 인용 특허 :
0 |
초록
▼
A biodegradable, optically active copolymer is disclosed. The copolymer is represented by general formula (I): [Figure] (I) wherein R1 represents a group selected from the group consisting of methyldimethylene, 1,2-dimethyldimethylene, 1,1-dimethyldimethylene, methyltrimethylene, tetramethylene, met
A biodegradable, optically active copolymer is disclosed. The copolymer is represented by general formula (I): [Figure] (I) wherein R1 represents a group selected from the group consisting of methyldimethylene, 1,2-dimethyldimethylene, 1,1-dimethyldimethylene, methyltrimethylene, tetramethylene, methyltetramethylene, pentamethylene, 1,4-dimethyl-2-oxo-3-oxytetramethylene, 2-oxo-3-oxytetramethylene, and 2-methyl-3-oxypentamethylene, and m and n each represents a natural number of from 10 to 15,000. According to the present invention, useful polymers which are a new type of functional materials characterized as having optical activity, biodegradability (enzymatic degradability), and hydrolyzability can be easily produced in an industrially advantageous manner by the ring-opening copolymerization of optically active b
대표청구항
▼
A biodegradable, optically active copolymer represented by general formula (I): [Figure] (I) wherein R1 represents a group selected from the group consisting of methyldimethylene, 1,2-dimethyldimethylene, 1,1-dimethyldimethylene, methyltrimethylene, tetramethylene, methyltetramethylene, pentamethyle
A biodegradable, optically active copolymer represented by general formula (I): [Figure] (I) wherein R1 represents a group selected from the group consisting of methyldimethylene, 1,2-dimethyldimethylene, 1,1-dimethyldimethylene, methyltrimethylene, tetramethylene, methyltetramethylene, pentamethylene, 1,4-dimethyl-2-oxo-3-oxytetramethylene, 2-oxo-3-oxytetramethylene, and 2-methyl-3-oxypentamethylene, and m and n each represents a natural number of from 10 to 15,000, said copolymer having a weight-average molecular weight of from 8,000 to 1,000,000.
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