IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0159907
(1988-02-24)
|
우선권정보 |
FR-0002616 (1987-02-24) |
발명자
/ 주소 |
- Barthelemy Pascal (Lyons FRX)
|
출원인 / 주소 |
- Rhone-Poulenc Chimie (Courbevoie FRX 03)
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
1 |
초록
▼
Novel heat-stable imido polymers, well adapted for the production of a wide variety of useful shaped articles, comprise the coplymerizate of (a) at least one diorganopolysiloxylated N,N′-bismaleimide having the following general formula (I): [Figure] with (b) at least one other N,N′-bismaleimide com
Novel heat-stable imido polymers, well adapted for the production of a wide variety of useful shaped articles, comprise the coplymerizate of (a) at least one diorganopolysiloxylated N,N′-bismaleimide having the following general formula (I): [Figure] with (b) at least one other N,N′-bismaleimide comonomer, optionally, (c) at least one olefinically unsaturated comonomer copolymerizable with the bismaleimides (a) and (b), and, also optionally, (d) a catalyst.
대표청구항
▼
A heat-stable imido polymer prepared by polymerizing a reaction mixture comprising: (a) a diorganopolysiloxylated N,N′-bismaleimide having the general formula (I): [Figure] (I) in which: X, which is in the ortho, meta or para position relative to the nitorgen-bonded carbon atom of the benzene ring,
A heat-stable imido polymer prepared by polymerizing a reaction mixture comprising: (a) a diorganopolysiloxylated N,N′-bismaleimide having the general formula (I): [Figure] (I) in which: X, which is in the ortho, meta or para position relative to the nitorgen-bonded carbon atom of the benzene ring, is one of the following atoms or groups: [Figure] R1, R2, R3, R4 and R5, which are identical or different, are each linear or branched chain alkyl radical containing from 1 to 12 carbon atoms, or a substituted such radical bearing one or more chlorine, bromine or fluorine atom substituents or a -CN substituent; or a phenyl radical optionally substituted by one or more alkyl and/or alkoxy radicals containing from 1 to 4 carbon atoms, or by one or more chlorine atoms; the symbol x is an integer ranging from 2 to 8; and the symbols y and z are identical or different, whole or fractional numbers, the sum of which ranges from 0 to 100; with (b) at least one N,N′-bismalimide having the formula: [Figure] (II) in which: the symbols Z, which are identical or different, are each H, CH3, or Cl; the symbol A is cyclohexylene, phenylene, 4-methyl-1,3-phenylene, 2-methyl-1,3-phenylene, 5-methyl-1,3-phenylene, 2,5-diethyl-3-methyl-1,4-phenylene, or a radical of the formula: [Figure] in which B is a single valence bond or one of the groups or atoms; [Figure] [Figure] and the symbols T, which are identical or different, are each a hydrogen atom or a methyl, ethyl or isopropyl radical; and (c) optionally, at least one olefinically unsaturated comonomer copolymerizable with said bismaleimides of formulae (I) and (II).
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