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公开(公告)号：JPH11158320A
公开(公告)日：1999-06-15
申请号：JP23877998
申请日：1998-08-25
Applicant: BASF AG
Inventor： NABER BERNHARD , GASSAN MICHAEL , SCHUPP THOMAS DR , CHAKRABARTI SARBANANDA
Abstract: PROBLEM TO BE SOLVED: To improve the processing characteristics of a composition containing a polyol and to reduce the content of a primary amine existing in a composition, by treating a composition containing one or more kinds of polyols with an isocyanate. SOLUTION: (A) A composition containing one or more kinds of polyols is compounded with (B) to R are each independently H or a 1-6C alkyl; R and R are each independently a 1-4C alkylene), preferably 1,3-bis(2-isocyanatopropyl)benzene (TMXDI) is preferably used as the component B.
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公开(公告)号：CA2242980A1
公开(公告)日：1999-02-26
申请号：CA2242980
申请日：1998-08-25
Applicant: BASF AG
Inventor： GASSAN MICHAEL , CHAKRABARTI SARBANANDA , NABER BERNHARD , SCHUPP THOMAS
Abstract: In a process for reducing the primary amine content of a composition comprising at least one polyol, in which a composition comprising at least one polyol is admixed with at least one isocyanate which contains only secondary and/or tertiary, aliphatically bound isocyanate groups, isocyanate is added in an amount of up to 5 % by weight, based on the total composition, and a polyol preparation is obtained.
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公开(公告)号：MX9707991A
公开(公告)日：1998-04-30
申请号：MX9707991
申请日：1997-10-17
Applicant: BASF AG
Inventor： NABER BERNHARD , CALGUA ERWIN , GASSAN MICHAEL , NEISS VERA
Abstract: La presente invencion se refiere a las espumas de poliisocianurato que tienen conductividad térmica reducida y se obtienen por la reaccion. a) poliisocianatos orgánicos y/o orgánicos modificados con b) por lo menos un compuesto de peso molecular relativamente elevado que contiene por lo menos 2 átomos de hidrogeno reactivo y, si se desea, c) extensores de cadena y/o reticuladores de peso molecular bajo. en presencia de d) catalizadores, e) si se desea, agentes de soplado f) y, si se desea, otros auxiliadores y/o aditivos, En donde el componente b) que se utiliza consiste por lo menos en un piliol reciclado que se obtiene por glucolisis de las espumas de poliisocianurato utilizando polioles portadores con un numero de OH de cuanto más 500 mg KOH/g y una masa molar de por lo menos 450 g/mol. Las espumas PIR producidas por este proceso pueden utilizarse para aislamiento térmico.
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公开(公告)号：DE59609494D1
公开(公告)日：2002-09-05
申请号：DE59609494
申请日：1996-03-14
Applicant: BASF AG
Inventor： NABER BERNHARD , NEISS VERA , GASSAN MICHAEL , DEUTSCH WERNER
Abstract: A process for the utilisation of plastic waste contg. a mixt. of polyurethanes (PU) and other plastics, comprising (a) reacting the waste with a mixt. of low-mol. wt., at least difunctional alcohol(s) (I) and polyether-polyol(s) (II), and (b) separating the polyol glycolysis prod. from the rest of the waste by mechanical methods. Also claimed is a glycolysis polyol obtd. by this process.
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公开(公告)号：CA2233366A1
公开(公告)日：1998-10-29
申请号：CA2233366
申请日：1998-04-28
Applicant: BASF AG
Inventor： SCHMIADE WERNER , NABER BERNHARD , GASSAN MICHAEL
Abstract: In a process for producing rigid polyurethane foams by reacting a) polyisocyanates b) compounds containing at least two hydrogen atoms capable of reacting with isocyanate groups, in the presence of c) catalysts, d) blowing agents and, if desired, e) further auxiliaries and/or additives, the component b) comprises at least one recycled polyol which is formed by glycolysis of polyurethanes.
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Patent Agency Ranking
公开(公告)号：DE59600162D1
公开(公告)日：1998-05-28
申请号：DE59600162
申请日：1996-07-02
Applicant: BASF AG
Inventor： NABER BERNHARD , NEISS VERA , GASSAN MICHAEL , LEZIUS MARITTA
Abstract: The prodn. of isocyanurate gp.-contg. polyols (I) comprises reacting polyisocyanurates (II) with short-chain, OH gp.-contg. cpds. (III) in presence of carrier polyols (IV) with an OH number of not more than 500 mg KOH/g and a mol. wt. of at least 450. Also claimed are polyols (I) obtd. by this process. Pref. polyols (IV) are based on glycerol and/or trimethylolpropane. The ratio of (III):(IV) = (5-20):1, and the ratio of (III + IV):(II) = (1-5):1. The process comprises heating the mixt. of (III) and (IV) to 190-240 degrees C, adding (II), reducing the temp. by 10-40 degrees C and stirring for 1.5-3 hrs. at this temp. After reaction is complete, the mixt. is either (a) cooled to 50-150 degrees C, treated with not more than 5 wt% alkali or alkaline earth metal hydroxide and stirred for 0.5-1.5 hrs. at this temp. or (b) cooled to 100-160 degrees C, treated with not more than 10 wt% monofunctional glycidyl ether and stirred for 0.5-1.5 hrs. at this temp.
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公开(公告)号：MX9707989A
公开(公告)日：1998-04-30
申请号：MX9707989
申请日：1997-10-17
Applicant: BASF AG
Inventor： NABER BERNHARD , GASSAN MICHAEL , HENDREICH REGINA , NEISS VERA
Abstract: La presente invencion se refiere a las espumas integrales de poliuretano, rígidas que tienen mejor resistencia a la propagacion del desgarramiento, al alargamiento en la rotura y resistencia a la traccion, que se producen mediante la reaccion a) poliisocianatos orgánicos y/o orgánicos modificados con b) por lo menos un compuesto molecular relativamente elevado que contiene por lo menos dos átomos de hidrogeno reactivo y, si de desea, c) extensores de cadena y/o reticuladores de peso molecular bajo en presencia de d) catalizadores, e) si se desea, agentes de soplado f) y, si se desea otros , auxiliares y/o aditivos en donde el componente b) que se utiliza consiste en por lo menos un poliol reciclado, que se obtiene por glucolisis de las espumas integrales de poliuretano, rigidas utilizando glicidil éteres. Las espumas rígidas integrales de poliuretano producidas por este proceso se utilizan como revestimiento de barril de cerveza.
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公开(公告)号：DE19643057A1
公开(公告)日：1998-04-23
申请号：DE19643057
申请日：1996-10-18
Applicant: BASF AG
Inventor： NABER BERNHARD , CALGUA ERWIN , GASSAN MICHAEL , NEIS VERA
IPC: C08G18/40 , C08G18/50 , C08G18/79 , C08G18/83 , C08J9/14 , C08J11/24 , C08G18/65 , C08G18/32 , C08J9/08 , C08L75/04 , F16L59/00
Abstract: A method for the preparation of polyisocyanurate foams with reduced thermal conductivity, comprises reacting optionally modified organic polyisocyanates (A) with at least one high mol.wt. compound (B) containing two or more reactive hydrogen atoms and optionally with low mol.wt. chain extenders and/or cross-linking agents (C), in the presence of catalysts (D), optional propellants (E) and optional auxiliary agents and/or additives (F). At least one recycled polyol obtained by glycolysis of polyisocyanurate foam using carrier polyols with a maximum OH content of 500 mg KOH/g and molar mass of at least 450 g/mole, is used as (B). Also claimed are polyisocyanurate foams prepared by the above method.
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公开(公告)号：CA2216772A1
公开(公告)日：1998-04-18
申请号：CA2216772
申请日：1997-10-17
Applicant: BASF AG
Inventor： NABER BERNHARD , GASSAN MICHAEL , NEISS VERA , CALGUA ERWIN
Abstract: Polyisocyanurate foams having a reduced thermal conductivity are produced by reacting a) organic and/or modified organic polyisocyanates with b) at least one relatively high molecular weight compound containing at least two reactive hydrogen atoms and, if desired c) low molecular weight chain extenders and/or crosslinkers in the presence of d) catalysts, e) if desired, blowing agents f) and, if desired, further auxiliaries and/or additives, wherein the component b) used comprises at least one recycled polyol which is obtained by glycolysis of polyisocyanurate foams using carrier polyols having an OH number of at most 500 mg KOH/g and a molar mass of at least 450 g/mol. The PIR foams produced by this process can be used for thermal insulation.
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公开(公告)号：DE19525301A1
公开(公告)日：1997-01-16
申请号：DE19525301
申请日：1995-07-12
Applicant: BASF AG
Inventor： NABER BERNHARD , NEIS VERA , GASSAN MICHAEL , LEZIUS MARITTA
Abstract: The prodn. of isocyanurate gp.-contg. polyols (I) comprises reacting polyisocyanurates (II) with short-chain, OH gp.-contg. cpds. (III) in presence of carrier polyols (IV) with an OH number of not more than 500 mg KOH/g and a mol. wt. of at least 450. Also claimed are polyols (I) obtd. by this process. Pref. polyols (IV) are based on glycerol and/or trimethylolpropane. The ratio of (III):(IV) = (5-20):1, and the ratio of (III + IV):(II) = (1-5):1. The process comprises heating the mixt. of (III) and (IV) to 190-240 degrees C, adding (II), reducing the temp. by 10-40 degrees C and stirring for 1.5-3 hrs. at this temp. After reaction is complete, the mixt. is either (a) cooled to 50-150 degrees C, treated with not more than 5 wt% alkali or alkaline earth metal hydroxide and stirred for 0.5-1.5 hrs. at this temp. or (b) cooled to 100-160 degrees C, treated with not more than 10 wt% monofunctional glycidyl ether and stirred for 0.5-1.5 hrs. at this temp.
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