IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0520059
(1990-05-03)
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| 우선권정보 |
IL-0090193 (1989-05-04) |
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발명자
/ 주소 |
- Cohn Daniel (Jerusalem ILX) Yitzchaiek Shlomo (Ramat Gan ILX) Bilenkis Sophie (Jerusalem ILX)
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| 출원인 / 주소 |
- Biomedical Polymers International, Ltd. (Guilderland NY 02)
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| 인용정보 |
피인용 횟수 :
251 인용 특허 :
0 |
초록
The invention provides a polyurethane amide segmented copolymer selected from: a) a segmented block polyurethane amide (PEUAm) of the following repeating unit [I] [Figure] b) a segmented block polyurethane amide of the following repeating unit [II] [Figure] [Figure]
대표청구항
▼
A polyurethane amide segmented copolymer selected from: a) a segmented block polyurethane amide (PEUAm) of the following repeating unit [I] [Figure] wherein R is hexamethylene, 4,4′-diphenylmethane, toluene, naphthalene, 4,4′-dicyclohexylmethane, cyclohexyl, 3,3′-dimethylphenyl, 3,3′-dimethyl-diphen
A polyurethane amide segmented copolymer selected from: a) a segmented block polyurethane amide (PEUAm) of the following repeating unit [I] [Figure] wherein R is hexamethylene, 4,4′-diphenylmethane, toluene, naphthalene, 4,4′-dicyclohexylmethane, cyclohexyl, 3,3′-dimethylphenyl, 3,3′-dimethyl-diphenylmethane, 4,6′-xylylene, 3,5,5-trimethylcyclohexyl, 2,2,4-trimethyl-hexamethylene or p-phenylene, R′is selected from a linear or branched, unsubstituted or substituted hydrocarbyl group, said substituents being selected from halogen or hydroxy, or R′is a bivalent Si－(R1R2) group, wherein R1 and R2 are identical or different groups selected from hydrogen, alkyl, a double bond-containing hydrocarbyl group, halogen, hydroxy or an aromatic ring-containing group, and m is a positive integer, A is a bivalent saturated or unsaturated, linear or branched, substituted or unsubstituted hydrocarbyl group, said substituents being selected from halogen, hydroxy, cyano, carboxy or amino groups; or A is an unsubstituted or substituted aromatic ring-containing group, said substituents being selected from halogen, hydroxy, cyano, carboxy or amino groups, and n is zero or a positive integer: b) a segmented block polyurethane amide of the following repeating unit [II] [Figure] [Figure] wherein R is hexamethylene. 4,4′-diphenylmethane, toluene, naphthalen, 4,4′-dicyclohexylmethane, cyclohexyl, 3,3′-dimethylphenyl, 3,3′-dimethyl-diphenylmethane, 4,6′-xylylene, 3,5,5-trimethylcyclohexyl, 2,2,4-trimethyl-hexamethylene or p-phenylene, R′is selected from a linear or branched, unsubstituted or substituted hydrocarbyl group, said substitutents being selected from halogen or hydroxy, or R′is a bivalent Si－(R1R2) group, wherein R1 and R2 are identical or different groups selected from hydrogen, alkyl, a double bond-containing hydrocarbyl group, halogen, hydroxy or an aromatic ring-containing group, and m is a positive integer and B and D are each a bivalent, saturated or unsaturated, linear or branched, unsubstituted or substituted hydrocarbyl group, said substituents being selected from halogen, hydroxy, cyano, carboxy or amino groups, or B and D are each an unsubstituted or substituted aromatic ring-containing group, said substituents being selected from halogen, cyano, carboxy or amino groups wherein B and D can be the same or different, and a and b are identical or different and are each 0 or 1, and X and Y are identical or different grafted substituents, usually bearing biomedical relevance.
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