[특허]Modified cyanoacrylate monomers and methods for preparation

[미국특허] Modified cyanoacrylate monomers and methods for preparation 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C07F-007/10
출원번호	US-0699299 (1976-06-23)
발명자 / 주소	Buck Carl J. (Berkeley Heights NJ)
출원인 / 주소	Johnson & Johnson (New Brunswick NJ 02)
인용정보	피인용 횟수 : 39 인용 특허 : 0

초록 ▼

Difunctional monomers of the formula, [Figure] where R is an organic linking group derived from a diol or a dihalide of the formula X-R-X, where X is either chlorine, bromine, iodine, or hydroxy, are prepared by reacting a conjugated diene, exemplified by anthracene, with an ester of 2-cyanoacrylic acid to form the Diels-Alder adduct of the ester. The ester adduct is hydrolyzed to ultimately obtain either the Diels-Alder adduct of either 2-cyanoacrylic acid--alkali metal salt of 2-cyanoacryloyl halide. These latter intermediates are respectively reacted with either the dihalide or the diol to afford the bis-Diels-Alder adduct of the R substituted bis (2-cyanoacrylate) monomer. The protective diene group may then be removed, for example, by reaction with excess maleic anhydride and the resulting difunctional monomer isolated. The difunctional monomers thus prepared can be utilized as crosslinking agents in blends comprising one or more of these difunctional monomers and at least one monofunctional monomer, exemplified by an ester of 2-cyanoacrylic acid. Alternately, one or more difunctional monomers can be homopolymerized or copolymerized to a highly crosslinked polymer. The copolymerized compositions of the monomer blends are particularly useful as adhesives, especially in dental applications for coating or sealing enamel surfaces of teeth to allay decay, or for the bonding of brackets to teeth in orthodontics the bond being substantially more resistant to moisture than where the monofunctional monomer is used alone.

대표청구항

A monomer composition of the formula [Figure]

이 특허를 인용한 특허 (39) 인용/피인용 타임라인 분석

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McArdle, Ciaran; Zhao, Ligang; Gherardi, Stefano L.; Murnaghan, Kevin D., Electron deficient olefins.
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McArdle, Ciaran B.; Zhao, Ligang, Imines and methods of preparing electron deficient olefins using such novel imines.
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McArdle, Ciaran B.; Zhao, Ligang, Iminium salts and methods of preparing electron deficient olefins using such novel iminium salts.
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Zhang, Sheng; Ruiz, Sr., Rafael, Low dose gamma sterilization of liquid adhesives.
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Azevedo, Max, Method for curing cyanoacrylate adhesives.
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Azevedo, Max, Method for curing cyanoacrylate adhesives.
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Zhang, Sheng; Ruiz, Rafael, Method of preparing adhesive compositions for medical use: single additive as both the thickening agent and the accelerator.
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Bigi, Franca; Gheradi, Stefano; McArdle, Ciaran B., Method of preparing electron deficient olefins.
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McArdle, Ciaran B.; Zhao, Ligang, Method of preparing electron deficient olefins.
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McArdle, Ciaran B., Method of preparing electron deficient olefins in polar solvents.
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Porter,Stephen C., Occlusive composition.
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Kennedy, Joseph; Szanka, Istvan; Szanka, Amalia, Rubbery polysiloxanes carrying cyanoacrylate functions and related methods for their preparation and uses therefor.
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Zhang, Sheng; Ruiz, Rafael, Stable and sterile tissue adhesive composition with a controlled high viscosity.
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Zhang, Sheng; Ruiz, Sr., Rafael; Phelps, Shannon, Sterilized compositions of cyanoacrylate monomers and naphthoquinone 2,3-oxides.
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Zhang, Sheng; Ruiz, Sr., Rafael, Sterilized liquid compositions of cyanoacrylate monomer mixtures.
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Gherardi, Stefano; McArdle, Ciaran B.; Faimani, Giovanni; Loschen, Christoph, Substituted activated methylene reagents and methods of using such reagents to form electron deficient olefins.
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Malofsky Bernard ; Badejo Ibraheem T., Transesterification method for making cyanoacrylates.
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[미국특허] Modified cyanoacrylate monomers and methods for preparation 원문보기