RU93046499A - METHOD FOR INCREASING THE RELATIVE DENSITY OF POLYAMIDS - Google Patents

METHOD FOR INCREASING THE RELATIVE DENSITY OF POLYAMIDS

Info

Publication number
RU93046499A
RU93046499A RU93046499/04A RU93046499A RU93046499A RU 93046499 A RU93046499 A RU 93046499A RU 93046499/04 A RU93046499/04 A RU 93046499/04A RU 93046499 A RU93046499 A RU 93046499A RU 93046499 A RU93046499 A RU 93046499A
Authority
RU
Russia
Prior art keywords
group
increasing
relative density
polyamids
represent
Prior art date
Application number
RU93046499/04A
Other languages
Russian (ru)
Other versions
RU2086574C1 (en
Inventor
Джон Франсис Базинкэй
Дж.Мэрион Роллинз Дьюитт
Роберт Клейтон Уиланд
Original Assignee
Е.И. Дю Пон де Немурс энд Компани
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/623,263 external-priority patent/US5116919A/en
Application filed by Е.И. Дю Пон де Немурс энд Компани filed Critical Е.И. Дю Пон де Немурс энд Компани
Publication of RU93046499A publication Critical patent/RU93046499A/en
Application granted granted Critical
Publication of RU2086574C1 publication Critical patent/RU2086574C1/en

Links

Claims (1)

Способ увеличения относительной плотности полиамида, включающий нагревание полиамида в присутствии основания и катализатора, в качестве которого используют соединение формулы X - (CR''2)PO3R2, где Х - 2-пиридил, 2-пиридильный радикал, замещенный в позициях 3,4 и/или 5 по меньшей мере одной группой СхН2 х + 1, где Х = 1 - 10; 4 - морфолино, 1- пирролидино, 1-пиперидино или группа R'2 - N -, где R' могут быть одинаковыми или различными и представляют собой алкильную группу, содержащую от 1 до 12 атомов углерода, n = 2 - 5, R могут быть одинаковыми или различными и представляют собой атом водорода или алкильную группу, содержащую от 1 до 12 атомов углерода, причем один или более атомов водорода алкильной группы могут быть замещены группой СхН2 х + 1О, где Х = 1 - 10, и/или незамещенной фенильной группой, и/или фенильной группой с заместителями Cl, Br, CxH2 x + 1, где Х = 1 - 10; R'' могут быть одинаковыми или различными и представляют собой атом водорода или группу СхН2 х + 1, где Х = 1 - 10.A method of increasing the relative density of the polyamide, comprising heating the polyamide in the presence of a base and a catalyst, which is used as a compound of the formula X - (CR '' 2 ) PO 3 R 2 , where X is 2-pyridyl, 2-pyridyl radical substituted at 3 positions , 4 and / or 5 with at least one group C x H 2 x + 1 , where X = 1 - 10; 4 - morpholino, 1-pyrrolidino, 1-piperidino or a group R ' 2 - N -, where R' can be the same or different and represent an alkyl group containing from 1 to 12 carbon atoms, n = 2 - 5, R can be the same or different and represent a hydrogen atom or an alkyl group containing from 1 to 12 carbon atoms, moreover, one or more hydrogen atoms of the alkyl group can be replaced by a group C x H 2 x + 1 O, where X = 1 to 10, and / or an unsubstituted phenyl group, and / or a phenyl group with the substituents Cl, Br, C x H 2 x + 1 , where X = 1-10; R ″ can be the same or different and represent a hydrogen atom or a group C x H 2 x + 1 , where X = 1 - 10.
RU9193046499A 1990-12-05 1991-12-05 Method of increasing relative density of polyamide RU2086574C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US623263 1990-12-05
US07/623,263 US5116919A (en) 1990-12-05 1990-12-05 Process for increasing the relative viscosity of polyamides with reduced thermal degradation
PCT/US1991/008929 WO1992010526A1 (en) 1990-12-05 1991-12-05 Process for increasing the relative viscosity of polyamides

Publications (2)

Publication Number Publication Date
RU93046499A true RU93046499A (en) 1996-10-10
RU2086574C1 RU2086574C1 (en) 1997-08-10

Family

ID=24497407

Family Applications (1)

Application Number Title Priority Date Filing Date
RU9193046499A RU2086574C1 (en) 1990-12-05 1991-12-05 Method of increasing relative density of polyamide

Country Status (7)

Country Link
US (1) US5116919A (en)
EP (1) EP0560933B1 (en)
JP (1) JP2793911B2 (en)
AU (1) AU662890B2 (en)
DE (1) DE69122409T2 (en)
RU (1) RU2086574C1 (en)
WO (1) WO1992010526A1 (en)

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US5321068A (en) * 1992-11-24 1994-06-14 E. I. Du Pont De Nemours And Company Fiber of polyadipamide polymer containing added succinic acid
DE59305338D1 (en) * 1992-12-22 1997-03-13 Ciba Geigy Ag Molecular weight increase of polyamides
JP2741795B2 (en) 1993-02-18 1998-04-22 イー・アイ・デュポン・ドゥ・ヌムール・アンド・カンパニー Polyamide having improved color and processability and method for producing the same
US5496920A (en) * 1993-06-07 1996-03-05 Ciba-Geigy Corporation Increasing the molecular weight of polyamides
US5420230A (en) * 1993-09-20 1995-05-30 E. I. Du Pont De Nemours And Company Amidation catalyst concentrates
US5756596A (en) * 1993-12-16 1998-05-26 Ciba Specialty Chemicals Corporation Increasing the molecular weight of polyamides
US5461085A (en) * 1993-12-17 1995-10-24 Mitsui Toatsu Chemicals, Incorporated Superabsorbent polymer and process for producing same
BR9508100A (en) * 1994-06-22 1997-08-12 Ciba Geigy Ag Increase in the molecular weight of polycondensates
US6387880B1 (en) 1994-10-24 2002-05-14 G.D. Searle & Co. Transdermal N-[N-[5-[4-(aminoiminomethly)phenyl]-1-oxopentyl]-L-α-aspartyl]-L-phenylalainine or its esters and their pharmaceutically acceptable salts
US5502154A (en) * 1994-11-30 1996-03-26 E. I. Du Pont De Nemours And Company Apparatus for processing materials
US5955569A (en) * 1996-11-27 1999-09-21 E.I. Du Pont De Nemours And Company Method for solid phase polymerization
CN1215076C (en) * 1998-09-09 2005-08-17 症变治疗公司 Heteroaromatic inhibitors of fructose 1,6-bisphosphatase
US6169162B1 (en) 1999-05-24 2001-01-02 Solutia Inc. Continuous polyamidation process
CN1740182A (en) * 1999-12-22 2006-03-01 症变治疗公司 Novel bisamidate phosphonate prodrugs
US7563774B2 (en) 2000-06-29 2009-07-21 Metabasis Therapeutics, Inc. Combination of FBPase inhibitors and antidiabetic agents useful for the treatment of diabetes
US7139598B2 (en) * 2002-04-04 2006-11-21 Veralight, Inc. Determination of a measure of a glycation end-product or disease state using tissue fluorescence
EP1778250A2 (en) * 2004-08-18 2007-05-02 Metabasis Therapeutics, Inc. Novel thiazole inhibitors of fructose 1,6-bisphosphatase
CN101827961B (en) * 2007-10-17 2013-07-03 因维斯塔技术有限公司 Preparation of very high molecular weight polyamide filaments
RU2565691C2 (en) * 2010-05-17 2015-10-20 Мицубиси Гэс Кемикал Компани, Инк. Polyamide resin composition
CN112236551B (en) 2018-06-08 2023-06-20 奥升德功能材料运营有限公司 Adjustable nanofiber nonwoven product
CN113227471B (en) * 2018-12-18 2024-04-19 奥升德功能材料运营有限公司 Antimicrobial polymer compositions, fibers and yarns

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872055A (en) * 1972-08-19 1975-03-18 Toyo Boseki Polyamide composition having decreased gel-forming property in molten state
US3947424A (en) * 1974-07-31 1976-03-30 E. I. Du Pont De Nemours And Company Polyamidation process
US4543407A (en) * 1984-12-03 1985-09-24 The Standard Oil Company Catalytic process for the manufacture of polyamides from diamines and diamides
JPH01104652A (en) * 1987-10-17 1989-04-21 Asahi Chem Ind Co Ltd Production of polyamide
JPH01104653A (en) * 1987-10-17 1989-04-21 Asahi Chem Ind Co Ltd Production of polyamide
JP2677364B2 (en) * 1987-10-17 1997-11-17 旭化成工業株式会社 Method for producing polyamide
US4912175A (en) * 1988-08-01 1990-03-27 E. I. Du Pont De Nemours And Company Process for in creasing polyamide molecular weight with P containing catalyst
US4966949A (en) * 1988-10-20 1990-10-30 E. I. Du Pont De Nemours And Company Process for increasing the molecular weight of a polyamide with p containing catalyst

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