IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0839991
(1986-03-17)
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발명자
/ 주소 |
- Kashiwame Josho (Yamato JPX) Otsuka Yoshihiro (Yokohama JPX) Kozawa Shigeyuki (Yokohama JPX)
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출원인 / 주소 |
- Asahi Glass Company, Ltd. (Tokyo JPX 03)
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인용정보 |
피인용 횟수 :
23 인용 특허 :
2 |
초록
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An aromatic polysulfone ether/polythioether sulfone copolymer having the formula: [Figure] (I) [Figure] wherein each of R1 and R2 which may be the same or different, is hydrogen, halogen or a hydrocarbon group having from 1 to 8 carbon atoms, each of a and b which may be the same or different, is an
An aromatic polysulfone ether/polythioether sulfone copolymer having the formula: [Figure] (I) [Figure] wherein each of R1 and R2 which may be the same or different, is hydrogen, halogen or a hydrocarbon group having from 1 to 8 carbon atoms, each of a and b which may be the same or different, is an integer of from 0 to 4, Ar is a bivalent aromatic residue selected from the group consisting of: [Figure] [Figure] wherein each of R3, R4 and R5 which may be the same or different, is hydrogen, or a hydrocarbon group having from 1 to 8 carbon atoms, each of c to e which may be the same of different, is an integer of from 0 to 4, Y is a single bond, -O-, -S-, -SO-, -SO2-, [Figure] wherein R is hydrogen or a hydrocarbon group having from 1 to 6 carbon atoms, and each of m and n is an integer indicating the degree of polymerization and m:n is from 1:20 to 20:1, said copolymer having an inherent viscosity hinh of from 0.1 to 1.5 as measured at 30°C. with respect to its solution having a concentration of 0.5 g/dl in a solvent mixture of phenol/1,1,2,2-tetrachloroethane (3/2 by weight ratio).
대표청구항
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An aromatic polysulfone ether/polythioether sulfone copolymer having the formula: [Figure] (I) [Figure] wherein each of R1 and R2 which may be the same or different, is hydrogen, halogen or a hydrocarbon group having from 1 to 8 carbon atoms, each of a and b which may be the same or different, is an
An aromatic polysulfone ether/polythioether sulfone copolymer having the formula: [Figure] (I) [Figure] wherein each of R1 and R2 which may be the same or different, is hydrogen, halogen or a hydrocarbon group having from 1 to 8 carbon atoms, each of a and b which may be the same or different, is an integer of from 0 to 4, Ar is a bivalent aromatic residue selected from the group consisting of: [Figure] [Figure] wherein each of R3, R4 and R5 which may be the same or different, is hydrogen, or a hydrocarbon group having from 1 to 8 carbon atoms, each of c to e which may be the same or different, is an integer of from 0 to 4, Y is a single bond, -O-, -S-, -SO-, -SO2-, [Figure] wherein R is hydrogen or a hydrocarbon group having from 1 to 6 carbon atoms, and each of m and n is an integer indicating the degree of polymerization and m:n is from 1:20 to 20:1, said copolymer having an inherent viscosity hinh of from 0.1 to 1.5 as measured at 30°C. with respect to its solution having a concentration of 0.5 g/dl in a solvent mixture of phenol/1,1,2,2-tetrachloroethane (3/2 by weight ratio).
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