公开(公告)号：DE50105501D1

公开(公告)日：2005-04-14

申请号：DE50105501

申请日：2001-02-12

Applicant: BASF AG

Inventor： FALKE DR ,  HENDREICH REGINA ,  JACKSON GARY

IPC: C08G18/38 ,  C08G18/48 ,  C08K5/3492

Abstract: Hydrophilic flame retardant flexible polyurethane foam is prepared by reaction of a polyetherol mixture comprising at least one 2-8 functional polyetherol, based on propylene oxide and/or butylene oxide and ethylene oxide and at least one polyetherol based on propylene oxide and/or butylene oxide and the flame retardant is melamine, optionally mixed with other flame retardants. Hydrophilic flame retardant flexible polyurethane foam (I) is produced by reaction of (A) an optionally modified organic polyisocyanate with (B) a polyetherol mixture and optionally (C) other compounds having isocyanate reactive hydrogen atoms in the presence of (D) water and/or other propellants, (E) catalysts, (F) stabilizers, (G) flame retardants and optionally (H) other additives and processing aids. The polyetherol mixture (B) comprises (B1) at least one 2-8 functional polyetherol, based on propylene oxide and/or butylene oxide and ethylene oxide, whereby the ethylene oxide content (with respect to total alkylene oxide content) is greater than 40 wt.%, having an OH number of 20-800 mgKOH/g and a prim. OH group content of greater than 50 % whereby (B11) contains at least one difunctional polyetherol (B1.1) having an OH number of 20-100 mg KOH/g and (B2) at least one polyetherol based on propylene oxide and/or butylene oxide having an OH number of greater than 30 mg KOH/g and the flame retardant (G) is melamine, optionally mixed with other flame retardants.

公开(公告)号：DE59811810D1

公开(公告)日：2004-09-23

申请号：DE59811810

申请日：1998-01-29

Applicant: BASF AG

Inventor： FALKE DR ,  HENDREICH REGINA ,  SCHUSTER MARITA ,  ZASCHKE DR

IPC: C08G18/40 ,  C08G18/48 ,  C08G18/66

公开(公告)号：DE59812282D1

公开(公告)日：2004-12-30

申请号：DE59812282

申请日：1998-01-29

Applicant: BASF AG

Inventor： FALKE DR ,  HENDREICH REGINA ,  FRITZ DR ,  ROTERMUND INGE

IPC: C08G18/66

Abstract: Preparation of homogeneous disintegration stable polyurethane components, comprising a high molecule wt. compound(s) with at least two reactive H atoms and low molecule wt. chain extenders and/or crosslinkers and optionally propellants, catalysts and other aids, involves adding an amine(s) and least one organic and/or modified organic isocyanate. Also claimed are the obtained polyurethane components.

公开(公告)号：DE50100268D1

公开(公告)日：2003-07-03

申请号：DE50100268

申请日：2001-03-27

Applicant: BASF AG

Inventor： FALKE DR ,  HENDREICH REGINA ,  STUERMER DR ,  FRIEDRICH DR

IPC: C08G18/00 ,  C08G18/40 ,  C08G18/48 ,  C08G18/64 ,  C08J9/00 ,  C08J9/10 ,  C08J9/32 ,  C12N11/08 ,  C12P7/62 ,  C12P41/00

Abstract: Production of products comprising biologically active substances covalently bound to polyurethane foam comprises generating isocyanate (NCO) groups and optionally other reactive groups on the surface of the foam and covalently attaching biologically active substances to these groups.

公开(公告)号：DE59705996D1

公开(公告)日：2002-02-21

申请号：DE59705996

申请日：1997-10-09

Applicant: BASF AG

Inventor： FALKE DR ,  HENDREICH REGINA ,  REICHELT MICHAEL

IPC: C08G18/08 ,  C08G18/10 ,  C08G18/38 ,  C08G18/66 ,  C08J3/20 ,  C08K5/3492 ,  C08L75/08

Abstract: A process for the production of stable dispersions (I) of melamine in polyol components comprising high-mol. wt. compound(s) with at least two reactive hydrogens and optionally low-mol. wt. chain extenders/crosslinkers, blowing agents, catalysts, fire retardants and other additives etc.. In this process, melamine is used as fire retardant in combination with amine(s) (II) and unmodified and/or modified organic isocyanate(s) (III). Also claimed is a process for the production of fireproofed polyurethane (PU) foam, by reacting isocyanates as above with other components as above, using melamine dispersions (I) as fire retardant. Preferably the process comprises adding melamine as fire retardant, followed by amines (II) and then isocyanates (III). The polyol component contains 1-50 wt% melamine, preferably with a particle size of 1-100 microns. (II) comprise prim. and/or sec. aliphatic and/or cycloaliphatic amines, and (III) comprise aromatic isocyanates or prepolymers with NCO groups, each in amounts of 0.05-5 wt% based on the polyol component.