PRODUCTION OF POLYURETHANE MANIFESTING IMPROVED HARDENING PROPERTY

    公开(公告)号:JPH10130358A

    公开(公告)日:1998-05-19

    申请号:JP20312897

    申请日:1997-07-29

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing the subject polyurethane capable of evading the problem of a free amine and having a low viscosity, a sufficient molecular weight distribution and a chain length distribution by using a polyetherpolyol obtained by combining a specific aromatic amine. SOLUTION: (A) An organic or a modified organic diisocyanate and/or polyisocyanate is reacted with (B) a polyetherpolyol base on an aromatic amine obtained by reacting a mixture of the total 100wt.% diphenylmethane-based amines comprising 5-20wt.% tetracyclic amine, 15-30wt.% tricyclic amine, 20-35wt.% polycyclic amine having four or more rings and 25-50wt.% bicyclic amine with other aromatic amines in combination in the presence of (C) a foaming agent and (D) a catalyst in the method for producing the objective polyurethane. The other aromatic amines are preferably aniline, tolylenediamine, etc. Further, the other aromatic amines are preferably used in 0.1-10wt.% based on the weight of the diphenylmethane-based amine mixture.

    2.
    发明专利
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    公开(公告)号:DE19958702B4

    公开(公告)日:2007-06-28

    申请号:DE19958702

    申请日:1999-12-06

    Applicant: BASF AG

    Abstract: Polyurethane foam (I) for the adsorption of heavy metal ions prepared by reaction of polyisocyanates with compounds having at least two hydrogen atoms reactive to isocyanates in the presence of devitalen algal material (DAM), or extraction residues from this material, is new. An Independent claim is included for preparation of (I).

    3.
    发明专利
    未知

    公开(公告)号:DE4318120C5

    公开(公告)日:2005-05-12

    申请号:DE4318120

    申请日:1993-06-01

    Applicant: BASF AG

    Abstract: The invention relates to a process for the preparation of open-cell, flexible polyurethane foams using, as cell opener, a polyetherol which can be prepared by the addition reaction of ethylene oxide and propylene oxide onto hydroxyl-containing initiator substances with basic catalysis and which has a hydroxyl number of from 30 to 60 mg of KOH/g, an ethylene oxide content of from 60 to 80% by weight of the total amount of alkylene oxide, a primary hydroxyl group content of 70% of the total hydroxyl group content and a functionality of from 2.5 to 3.5.

    4.
    发明专利
    未知

    公开(公告)号:DE19601410B4

    公开(公告)日:2004-12-09

    申请号:DE19601410

    申请日:1996-01-17

    Applicant: BASF AG

    Abstract: A process for the production of flexible polyurethane foam by reacting (a) unmodified and/or modified isocyanate compounds with (b) high-mol. wt. compounds with at least 2 reactive hydrogen atoms and optionally (c) low-mol. wt. chain extenders and/or crosslinkers, in presence of (d) blowing agents, (e) catalysts, (f) fire retardants and optionally (g) other additives etc. In this process, component (a) comprises prepolymers obtained by reaction of (a1) polyester-polyols and/or polyether-ester-polyols with (a2) aromatic diisocyanates, followed by a special after-treatment.

    5.
    发明专利
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    公开(公告)号:DE19611670B4

    公开(公告)日:2004-09-23

    申请号:DE19611670

    申请日:1996-03-25

    Applicant: BASF AG

    Abstract: Process for the production of low fogging flexible polyurethane foam by reaction of (a) organic and/or modified organic polyisocyanate with (b) high molecular compounds with \- two reactive hydrogen atoms and (c) optionally low molecular chain lengthening- and/or crosslinking agents in the presence of (d) blowing agents, (e) catalysts, (f) flame retardants and optionally (g) further auxiliary agents and/or additives. The high molecular compounds with \- two reactive hydrogen atom (b) comprises a special treated mixture of \- one condensation polymer of dicarboxylic acids and polyfunctional alcohols and \- one graft polymer.

    6.
    发明专利
    未知

    公开(公告)号:DE59908999D1

    公开(公告)日:2004-05-06

    申请号:DE59908999

    申请日:1999-07-17

    Applicant: BASF AG

    Abstract: Polyester polyol is prepared by polycondensation of an alcohol/ester mixture with a carboxylic acid mixture and polyalkylene terephthalate. Polyester polyols (I) based on alcohols and carboxylic acids and/or carboxylic acid derivatives as well as polyalkylene terephthalate are prepared by polycondensation of a raw material mixture containing (A) a mixture of one or more alcohols having at least 2 hydroxyl groups and 10-30 wt.% of a linear and/or cyclic ester compound, (B) a mixture of 10-33 wt.% succinic acid, 39-50 wt.% glutaric acid and 16-45 wt.% adipic acid and (C) polyalkylene terephthalate whereby the wt. ratio of (A):(B):(C) is 35-60:10-25:20-55.

    7.
    发明专利
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    公开(公告)号:DE50003151D1

    公开(公告)日:2003-09-04

    申请号:DE50003151

    申请日:2000-12-12

    Applicant: BASF AG

    Abstract: The invention relates to amino organic substances of the general formula (CoBnAm) -N-R'-N-(AmBnCo) (F1), wherein m, n and o are natural integers, which satisfy the condition m + n + o = 2, and the substituents have the following structures (a), wherein the substituents R', R'' and R''' have the following chemical composition: R' represents alkyl, cycloalkyl groups, R'' represents alkyl, cycloalkyl, alkylene, alkyldiene, alkyline, phenyl, mono- and polyfluoralkyl groups, R''' represents (CH2)z-CH3 with z = 2-16, wherein X is a polyalkylether chain. The invention further relates to a method for producing the inventive substances, to their use as additives in the production of PUR and PIR, especially as foam stabilizers in the production of PUR and PIR foams, and to the corresponding foam stabilizers as such.

    8.
    发明专利
    未知

    公开(公告)号:AT246213T

    公开(公告)日:2003-08-15

    申请号:AT00993622

    申请日:2000-12-12

    Applicant: BASF AG

    Abstract: The invention relates to amino organic substances of the general formula (CoBnAm) -N-R'-N-(AmBnCo) (F1), wherein m, n and o are natural integers, which satisfy the condition m + n + o = 2, and the substituents have the following structures (a), wherein the substituents R', R'' and R''' have the following chemical composition: R' represents alkyl, cycloalkyl groups, R'' represents alkyl, cycloalkyl, alkylene, alkyldiene, alkyline, phenyl, mono- and polyfluoralkyl groups, R''' represents (CH2)z-CH3 with z = 2-16, wherein X is a polyalkylether chain. The invention further relates to a method for producing the inventive substances, to their use as additives in the production of PUR and PIR, especially as foam stabilizers in the production of PUR and PIR foams, and to the corresponding foam stabilizers as such.

    10.
    发明专利
    未知

    公开(公告)号:DE4318120C2

    公开(公告)日:2003-04-17

    申请号:DE4318120

    申请日:1993-06-01

    Applicant: BASF AG

    Abstract: The invention relates to a process for the preparation of open-cell, flexible polyurethane foams using, as cell opener, a polyetherol which can be prepared by the addition reaction of ethylene oxide and propylene oxide onto hydroxyl-containing initiator substances with basic catalysis and which has a hydroxyl number of from 30 to 60 mg of KOH/g, an ethylene oxide content of from 60 to 80% by weight of the total amount of alkylene oxide, a primary hydroxyl group content of 70% of the total hydroxyl group content and a functionality of from 2.5 to 3.5.

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