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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Method for making multidimensional polyester oligomers

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08G-075/20    C08G-063/688    C08G-073/10   
미국특허분류(USC) 528/171 ; 252/183.11 ; 528/170 ; 528/183 ; 428/482
출원번호 US-0572755 (1995-06-05)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Hammar
인용정보 피인용 횟수 : 4  인용 특허 : 371
초록

High performance polyester sulfone oligomers are prepared for aerospace applications by condensing mono- or difunctional crosslinkable end caps (i.e. unsaturated hydrocarbons having one or two crosslinking sites) with dicarboxylic acid halides and dialcohols (i.e. diols). Multidimensional oligomers have an aromatic hub from which the polyester chains radiate. Blends of the linear and multidimensional oligomers can be made using compatible, non-crosslinking polymers. Prepregs and composites are formed from the oligomers or blends.

대표
청구항
▼

[ We claim:] [1.] A method for making a multidimensional polyester oligomer comprising the step of:condensing about 1 mole of an aromatic hub that has at least three --COX functionalities with at least 3 moles of an imidophenol of the formula: EQU D.sub.i --.phi.--OH reini=1 or 2;.phi.=phenyl;D= [ STR 21 ] R.sub.1 =lower alkyl, lower alkoxy, aryl, aryloxy, substituted alkyl, substituted aryl, halogen, or mixtures thereof;j=0, 1, or 2;G=--CH.sub.2 --, --O--, --S--, or --SO.sub.2 --;T=methallyl or allyl;Me-methyl; andX=halogen. [11.] A method for making a ...

이 특허에 인용된 특허 (371)

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