公开(公告)号：BR9100487A

公开(公告)日：1991-11-26

申请号：BR9100487

申请日：1991-02-06

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YANO NAOYUKI ,  NAGAYOSHI TATSUYA ,  NAGOU TAKASHI ,  TASHIMA ZUNZI ,  ISHIDA NORITOSHI ,  ITOH HIROYUKI ,  NAGAMATSU KATSUYUKI

IPC: B01J27/10 ,  C07B61/00 ,  C07C209/78 ,  C07C211/43 ,  C07C211/54 ,  C08G83/00

Abstract: A methylene-crosslinked polyarylamine is disclosed which contains a less amount of N-methylmethylenedianiline. A process for continuously preparing this kind of methylene-crosslinked polyarylamine is also revealed which comprises reacting aniline with formalin in the presence of hydrochloric acid under specific reaction conditions.

公开(公告)号：DE69104103T2

公开(公告)日：1995-05-11

申请号：DE69104103

申请日：1991-01-19

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YANO NAOYUKI ,  NAGAYOSHI TATSUYA ,  NAGOU TAKASHI ,  TASHIMA ZUNZI ,  ISHIDA NORITOSHI ,  ITOH HIROYUKI ,  NAGAMATSU KATSUYUKI

IPC: B01J27/10 ,  C07B61/00 ,  C07C209/78 ,  C07C211/43 ,  C07C211/54 ,  C07C211/50

Abstract: A methylene-crosslinked polyarylamine is disclosed which contains a less amount of N-methylmethylenedianiline. A process for continuously preparing this kind of methylene-crosslinked polyarylamine is also revealed which comprises reacting aniline with formalin in the presence of hydrochloric acid under specific reaction conditions.

公开(公告)号：HUT57803A

公开(公告)日：1991-12-30

申请号：HU11491

申请日：1991-01-15

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YANO NAOYUKI ,  NAGAYOSHI TATSUYA ,  NAGOU TAKASHI ,  TASHIMA JUNJI ,  ISHIDA NORITOSHI ,  ITOH HIROYUKI ,  NAGAMATSU KATSUYUKI

IPC: B01J27/10 ,  C07B61/00 ,  C07C209/78 ,  C07C211/43 ,  C07C211/54 ,  C08G12/08

Abstract: A methylene-crosslinked polyarylamine is disclosed which contains a less amount of N-methylmethylenedianiline. A process for continuously preparing this kind of methylene-crosslinked polyarylamine is also revealed which comprises reacting aniline with formalin in the presence of hydrochloric acid under specific reaction conditions.

公开(公告)号：BR9104556A

公开(公告)日：1992-06-09

申请号：BR9104556

申请日：1991-10-22

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ISHIDA NORITOSHI ,  TASHIMA ZUNZI ,  SHIMAMATSU MITSUNORI ,  NITTA KAZUNARI ,  NAGOU TAKASHI

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14 ,  C08G18/76 ,  C07C265/12

Abstract: A fractionation process of a methylene bridged polyphenylene polyisocyanate mixture obtained by phosgenating condensation product of aniline and formaldehyde is disclosed. In order to apply the above mixture to a variety of uses, the process separates the mixture into fractions by giving primary attention to the content of 4,4'- and 2,4'-isomer of diphenylmethane diisocyanate and at the same time reduces the content of impurities having acidity and hydrolyzable chlorine.

公开(公告)号：HU910114D0

公开(公告)日：1991-08-28

申请号：HU11491

申请日：1991-01-15

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YANO NAOYUKI ,  NAGAYOSHI TATSUYA ,  NAGOU TAKASHI ,  TASHIMA ZUNZI ,  ISHIDA NORITOSHI ,  ITOH HIROYUKI ,  NAGAMATSU KATSUYUKI

IPC: B01J27/10 ,  C07B61/00 ,  C07C209/78 ,  C07C211/43 ,  C07C211/54

Abstract: A methylene-crosslinked polyarylamine is disclosed which contains a less amount of N-methylmethylenedianiline. A process for continuously preparing this kind of methylene-crosslinked polyarylamine is also revealed which comprises reacting aniline with formalin in the presence of hydrochloric acid under specific reaction conditions.

公开(公告)号：HU208984B

公开(公告)日：1994-02-28

申请号：HU332591

申请日：1991-10-22

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ISHIDA NORITOSHI ,  TASHIMA ZUNZI ,  SHIMAMATSU MITSUNORI ,  NITTA KAZUNARI ,  NAGOU TAKASHI

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14 ,  C08G18/76 ,  C08G18/82

Abstract: A fractionation process of a methylene bridged polyphenylene polyisocyanate mixture obtained by phosgenating condensation product of aniline and formaldehyde is disclosed. In order to apply the above mixture to a variety of uses, the process separates the mixture into fractions by giving primary attention to the content of 4,4'- and 2,4'-isomer of diphenylmethane diisocyanate and at the same time reduces the content of impurities having acidity and hydrolyzable chlorine.

公开(公告)号：HUT60305A

公开(公告)日：1992-08-28

申请号：HU332591

申请日：1991-10-22

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ISHIDA NORITOSHI ,  TASHIMA ZUNZI ,  SHIMAMATSU MITSUNORI ,  NITTA KAZUNARI ,  NAGOU TAKASHI

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14 ,  C08G18/76 ,  C08G18/82

Abstract: A fractionation process of a methylene bridged polyphenylene polyisocyanate mixture obtained by phosgenating condensation product of aniline and formaldehyde is disclosed. In order to apply the above mixture to a variety of uses, the process separates the mixture into fractions by giving primary attention to the content of 4,4'- and 2,4'-isomer of diphenylmethane diisocyanate and at the same time reduces the content of impurities having acidity and hydrolyzable chlorine.

公开(公告)号：HU913325D0

公开(公告)日：1992-01-28

申请号：HU332591

申请日：1991-10-22

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ISHIDA NORITOSHI ,  TASHIMA ZUNZI ,  SHIMAMATSU MITSUNORI ,  NITTA KAZUNARI ,  NAGOU TAKASHI

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14 ,  C08G18/76

Abstract: A fractionation process of a methylene bridged polyphenylene polyisocyanate mixture obtained by phosgenating condensation product of aniline and formaldehyde is disclosed. In order to apply the above mixture to a variety of uses, the process separates the mixture into fractions by giving primary attention to the content of 4,4'- and 2,4'-isomer of diphenylmethane diisocyanate and at the same time reduces the content of impurities having acidity and hydrolyzable chlorine.

公开(公告)号：HU210256B

公开(公告)日：1995-03-28

申请号：HU11491

申请日：1991-01-15

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ITOH HIROYUKI ,  YANO NAOYUKI ,  NAGAYOSHI TATSUYA ,  ISHIDA NORITOSHI ,  NAGAMATSU KATSUYUKI ,  NAGOU TAKASHI ,  TASHIMA JUNJI

IPC: B01J27/10 ,  C07B61/00 ,  C07C209/78 ,  C07C211/43 ,  C07C211/54 ,  C08G12/08

Abstract: A methylene-crosslinked polyarylamine is disclosed which contains a less amount of N-methylmethylenedianiline. A process for continuously preparing this kind of methylene-crosslinked polyarylamine is also revealed which comprises reacting aniline with formalin in the presence of hydrochloric acid under specific reaction conditions.

公开(公告)号：DE69104103D1

公开(公告)日：1994-10-27

申请号：DE69104103

申请日：1991-01-19

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YANO NAOYUKI ,  NAGAYOSHI TATSUYA ,  NAGOU TAKASHI ,  TASHIMA ZUNZI ,  ISHIDA NORITOSHI ,  ITOH HIROYUKI ,  NAGAMATSU KATSUYUKI

IPC: B01J27/10 ,  C07B61/00 ,  C07C209/78 ,  C07C211/43 ,  C07C211/54 ,  C07C211/50

Abstract: A methylene-crosslinked polyarylamine is disclosed which contains a less amount of N-methylmethylenedianiline. A process for continuously preparing this kind of methylene-crosslinked polyarylamine is also revealed which comprises reacting aniline with formalin in the presence of hydrochloric acid under specific reaction conditions.