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특허 상세정보

Polymerization inhibition of acrylate esters

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C07C-069/54   
미국특허분류(USC) 260/486R
출원번호 US-0539219 (1975-01-08)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 26  인용 특허 : 0
초록

A new polymerization inhibitor combination has been developed which is effective in stabilizing acrylate esters during their distillation.

대표
청구항

A method for inhibiting the polymerization of crude dimethylaminoethyl methacrylate during its purification by distillation which comprises conducting said distillation in the presence of an inhibitor combination consisting essentially of a phenolictype polymerization inhibitor selected from the group consisting of: o-tert-butylphenol, p-methoxyphenol, 2,6-di-tert-butyl-p-cresol, 2,2′-methylenebis (6-tert-butyl-p-cresol), 4,4′thiobis (6-tert-butyl-m-cresol, 4,4′-thiobis (6-tert-butyl-o-cresol), thiobis (di-sec-amylphenol), 4,4′-butylidene (6-tert-butyl-m...

이 특허를 인용한 특허 피인용횟수: 26

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  2. Roling Paul V. (Spring TX). Enhancement of aromatic amine inhibition of acrylate monomer polymerization by addition of mannich products. USP1990034912247.
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  7. Fujisawa, Kazuhiko; Nakamura, Masataka; Yokota, Mitsuru; Vanderlaan, Douglas G.. Hydrolysis-resistant silicone compounds. USP2010117838698.
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  13. Tong, David Youdong. Multi-component polymerization inhibitors for ethylenically unsaturated monomers. USP2014048691994.
  14. Tong, David Youdong. Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes. USP2016079399622.
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  16. Fujisawa, Kazuhiko; Nakamura, Masataka; Yokota, Mitsuru. Process for producing hydrolysis-resistant silicone compounds. USP2015069056880.
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  19. Nakamura, Masataka; Fujisawa, Kazuhiko; Yokota, Mitsuru. Siloxanyl materials for molded plastics. USP2011118053539.
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  21. Nakagawa Koichi,JPX ; Makino Mitsuaki,JPX ; Kita Yuichi,JPX. Stabilization method of vinyl compound with hydroxy group and composition containing such vinyl compound. USP1998065760278.
  22. Rosenkranz Hans Jurgen (Krefeld DT) Rudolph Hans (Krefeld DT) Apel Gerhard (Krefeld DT). Stabilized acrylic acid esters of polyhydric alcohols and a process for their preparation. USP1977104053504.
  23. Dougherty, Edward F.; Scates, Mark O.. Stabilized ethylenically unsaturated organic compositions. USP1985094542231.
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