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특허 상세정보

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Synthesis of caprolactam from lysine

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08G-069/16   
미국특허분류(USC) 528/323; 540/528; 540/533
출원번호 US-0147256 (2008-06-26)
등록번호 US7977450 (2011-06-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Greenberg Traurig, LLP
인용정보 피인용 횟수 : 5  인용 특허 : 59
초록
▼

In various embodiments, the present invention can involve a method of synthesizing α-amino-ε-caprolactam. The method can comprise heating a salt of L-lysine in a solvent comprising an alcohol. In other embodiments, the present invention can involve methods for synthesizing ε-caprolactam. The methods can comprise heating a salt of L-lysine in a solvent comprising an alcohol and deaminating the reaction product. In various embodiments, the invention can include methods of converting biomass into nylon 6. The methods can comprise heating L-lysine in a solve...

대표
청구항

What is claimed is: 1. A method for producing nylon 6, the method comprising:(A) heating lysine in a solvent comprising an alcohol, at a temperature of about 99° C. to about 201° C., to produce α-amino-ε-caprolactam;(B) deaminating α-amino-ε-caprolactam produced in (A) by a method comprising contacting it at least once with a deamination reagent or catalyst at a temperature below the freezing point of water, to produce ε-caprolactam; and(C) polymerizing ε-caprolactam produced in (B) into nylon 6.

이 특허에 인용된 특허 (59)

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이 특허를 인용한 특허 피인용횟수: 5

  1. Klein, Josef Peter. Compounds and methods for producing nylon 6. USP2018059982094.
  2. Min, Byeong Cheol; Bhayani, Bhavin V.; Ramarao, Bandaru V.. Enzymatic hydrolysis of old corrugated cardboard (OCC) fines from recycled linerboard mill waste rejects. USP2018049951363.
  3. Min, Byeong Cheol; Bhayani, Bhavin V.; Ramarao, Bandaru V.. Hydrolysis of cellulosic fines in primary clarified sludge of paper mills and the addition of a surfactant to increase the yield. USP2017129850512.
  4. Klein, Josef Peter. Methods and compounds for producing nylon 6,6. USP2018069988491.
  5. Klein, Josef Peter. Methods of producing dicarbonyl compounds. USP20181110131610.

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