公开(公告)号：DE19519679B4

公开(公告)日：2006-04-06

申请号：DE19519679

申请日：1995-05-30

Applicant: BASF AG

Inventor： FALKE PETER ,  KNORR GOTTFRIED ,  ROTERMUND INGE ,  GUETTES BERND

IPC: C08L75/04 ,  C08G18/16 ,  C08G18/22 ,  C08G18/40 ,  C08G18/48 ,  C08G18/65 ,  C08J9/00 ,  C08J9/14 ,  C08K3/32 ,  E04B1/62

Abstract: Prepn. of rigid polyurethane foam with reduced after-expansion and decreased mould release times comprises reacting (a) organic and/or modified organic polyisocyanates with (b) high molecular cpd(s). contg. at least 2 reactive H atoms and opt. (c) low molecular chain extender and/or crosslinker in the presence of (d) blowing agent, (e) catalyst, (f) alkali metal salt (I) and opt. (g) other ancillaries and/or additives. (I) is dialkali H phosphate (IA) with an alkali content of 50-2500 ppm w.r.t. the amt. of components (b)-(g). Also claimed is the obtd. foam.

公开(公告)号：DE10322784A1

公开(公告)日：2004-12-09

申请号：DE10322784

申请日：2003-05-19

Applicant: BASF AG

Inventor： DINSCH STEFAN ,  WINKLER JUERGEN ,  ZIELER RALF ,  HOEPPNER GERD ,  KAMPF GUNNAR ,  KNORR GOTTFRIED ,  SEIFERT HOLGER

IPC: C08G18/48 ,  C08G18/66 ,  C08G18/76 ,  C08G65/26 ,  C08G65/10

Abstract: Production of polyetherols by catalytic adduction of alkylene oxides to initiator substances is such that (i) a tertiary amine catalyst and (ii) a basic alkali(ne earth)- based catalyst are used at 0.1-5% and 0.01-0.25% respectively, each amount based on the polyetherol weight, the weight ratio (i) : (ii) being 1 : 0.002-2.5. An independent claim is also included for polyetherols thus obtained and having a hydroxy number of 80-800 mg KOH/g and a functionality >=2.

公开(公告)号：DE10145439A1

公开(公告)日：2003-04-03

申请号：DE10145439

申请日：2001-09-14

Applicant: BASF AG

Inventor： FALKE PETER ,  KNORR GOTTFRIED ,  SEIFERT HOLGER

IPC: C08G18/48 ,  C08G18/76

Abstract: Polyol mixtures (b) for the production of retarded polyurethane foam comprise (b1) di- to octa-functional polyether-ols (OH number = 200-1300 mg KOH/g) based on ethylene oxide (EO) and optionally propylene oxide (PO) and/or butylene oxide (BO) (more than 30 wt% EO) and (b2) polyether-ols (OH no. = 100-1000) based on PO and/or BO and optionally up to 30 wt% EO. A method for the production of retarded polyurethane foam by reacting: (a) optionally modified polyisocyanates; (b) a polyol mixture and optionally; (c) other isocyanate-reactive compounds in presence of; (d) water; (e) catalysts; (f) fire retardants; (g) blowing agents; and (h) optionally other additives The polyol mixture (b) comprises (b1) di- to octa-functional polyether-ol(s) based on ethylene oxide (EO) and optionally propylene oxide (PO) and/or butylene oxide (BO), with an EO content of more than 30 wt% based on total alkylene oxide and an OH number of 200-1300 mg KOH/g, and (b2) polyether-ol(s) based on PO and/or BO and optionally EO, with an EO content of not more than 30 wt% and an OH number of 100-1000. An Independent claim is also included for reaction-retarded polyurethane foam obtained by this method.

公开(公告)号：DE10040408A1

公开(公告)日：2002-02-28

申请号：DE10040408

申请日：2000-08-18

Applicant: BASF AG

Inventor： GUETTES BERND ,  OPPENLAENDER KNUT ,  WETTERLING MONIKA ,  KNORR GOTTFRIED

IPC: C08G18/50 ,  C08G18/54 ,  C08G65/26 ,  C08G69/50 ,  C08J9/00

Abstract: A method for the production of polyether-polyols by base-catalysed reaction of H-functional starter substances (I) with alkylene oxides. The starters used (I) are reaction products of alkylphenols and/or bis-phenols with amines, optionally used with other co-initiators. An Independent claim is also included for polyether-polyols obtained by this method.

公开(公告)号：DE10131427A1

公开(公告)日：2002-02-14

申请号：DE10131427

申请日：2001-06-29

Applicant: BASF AG

Inventor： DINSCH STEFAN ,  WINKLER JUERGEN ,  KNORR GOTTFRIED ,  REICHELT MICHAEL ,  HOEPPNER GERD ,  MALOTKI PETER VON

IPC: C08G65/26 ,  C08G65/06

Abstract: Preparation of polyetherols based on solid starting substances and liquid hydroxyl containing costarters by catalytic addition of alkylene oxides. The starter combination contains ethoxy structure bearing diols, where the ratio of the average number of OH groups per mole in the starter combination to the number of ethoxy structures in the polyetherol is 1-0.2 to 1.8, and the weight proportion of ethoxy structure bearing diols to the average molecular weight of the polyetherols is 1-2 to 1-15. An Independent claim is also included for the polyetherols obtained as above, having an OH number of 300-650 mg KOH/g.

公开(公告)号：DE19958702A1

公开(公告)日：2001-06-07

申请号：DE19958702

申请日：1999-12-06

Applicant: BASF AG

Inventor： FALKE PETER ,  HENDREICH REGINA ,  KNORR GOTTFRIED ,  GUETTES BERND ,  SANDAU PETRA

IPC: B01J20/26 ,  C02F1/28 ,  C12N11/08

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).