-
公开(公告)号：DE59209369D1
公开(公告)日：1998-07-16
申请号：DE59209369
申请日：1992-10-17
Applicant: BASF AG
Inventor： HINZ WERNER DR , ADAMS STEFAN DR , KOEHLER ULRICH DR , MALETZKO CHRISTIAN DR , VORSPOHL KLAUS DR , ZSCHIESCHE RUTH DR
Abstract: The invention relates to highly reactive polyoxyalkylenepolyols prepared by oxalkylation of an initiator molecule containing at least 2 reactive hydrogen atoms and at least one tertiary amino group bonded via a spacer bridge, which preferably comprises an alkylene radical having at least 3 carbon atoms, by means of at least one alkylene oxide, preferably ethylene oxide and/or 1,2-propylene oxide, to a process for the preparation of these polyoxyalkylenepolyols, and to their use for the preparation of compact or cellular, preferably flexible, polyisocyanate polyaddition products.
-
公开(公告)号：GR3026025T3
公开(公告)日：1998-04-30
申请号：GR980400195
申请日：1998-01-29
Applicant: BASF AG
Inventor： HORN PETER DR , HINZ WERNER DR , JUNG LUDWIG
IPC: C08G18/08 , C08G18/00 , C08G18/22 , C08G18/30 , C08G18/32 , C08G18/48 , C08G18/50 , C08G18/65 , C08G18/66 , C08G101/00 , C08J9/00
Abstract: The invention relates to a process for the production of polyurethane foams, preferably semirigid polyurethane foams, having an improved foam structure by reacting a) organic and/or modified organic polyisocyanates with b) polyhydroxyl compounds having at least 2 reactive hydrogen atoms and c) crosslinking agents comprising at least one polyoxyalkylene polyol having a mean functionality of 3 to 8 and a hydroxyl number of from 200 to 1300 ppm, and having an alkali ion content of from 150 to 1200 ppm, in the presence of d) blowing agents, e) optionally catalysts, f) inorganic and/or organic acids as additive and g) optionally auxiliaries.
-
公开(公告)号：DK0624611T3
公开(公告)日：1998-02-23
申请号：DK94106805
申请日：1994-05-02
Applicant: BASF AG
Inventor： HORN PETER DR , HINZ WERNER DR , JUNG LUDWIG
IPC: C08G18/08 , C08G18/00 , C08G18/22 , C08G18/30 , C08G18/32 , C08G18/48 , C08G18/50 , C08G18/65 , C08G18/66 , C08G101/00 , C08J9/00
Abstract: The invention relates to a process for the production of polyurethane foams, preferably semirigid polyurethane foams, having an improved foam structure by reacting a) organic and/or modified organic polyisocyanates with b) polyhydroxyl compounds having at least 2 reactive hydrogen atoms and c) crosslinking agents comprising at least one polyoxyalkylene polyol having a mean functionality of 3 to 8 and a hydroxyl number of from 200 to 1300 ppm, and having an alkali ion content of from 150 to 1200 ppm, in the presence of d) blowing agents, e) optionally catalysts, f) inorganic and/or organic acids as additive and g) optionally auxiliaries.
-
公开(公告)号：ES2110540T3
公开(公告)日：1998-02-16
申请号：ES93108756
申请日：1993-06-01
Applicant: BASF AG
Inventor： HINZ WERNER DR , MALETZKO CHRISTIAN DR , BECKER JOHANNES DR , MATZKE GUENTER DR
Abstract: The invention relates to a process for the preparation of compact or cellulose elastomers containing urethane and urea groups by reacting a) at least one organic and/or modified organic polyisocyanate with b) at least one N-propoxylated polyoxyalkylene-polyamine containing at least 50% of secondary amino groups or a mixture of said N-propoxylated polyoxyalkylene-polyamines and polyoxyalkylene-polyamines having 2 to 4 primary amino groups and molecular weights of from 1,000 to 8,000, and c) at least alkyl-substituted aromatic polyamine having a molecular weight of up to 500, in the presence or absence of d) catalysts, and optionally e) blowing agents, f) auxiliaries and/or g) additives. om
-
公开(公告)号：DK0538673T3
公开(公告)日：1998-02-09
申请号：DK92117083
申请日：1992-10-07
Applicant: BASF AG
Inventor： HINZ WERNER DR , HORN PETER DR , KNOBLAUCH GEORG , RAMSTEINER FALKO DR , KNORR GOTTFRIED DR
IPC: A61L29/00 , A61F2/00 , A61L27/34 , A61M5/00 , B01D63/02 , C08G18/02 , C08G18/10 , C08G18/12 , C08G18/48 , C08G18/50 , C08G18/66 , C08G18/76
Abstract: The invention relates to transparent, autoclavable, non-cytotoxic, essentially compact polyurethane embedding compositions which are prepared by reacting a) modified diphenylmethane diisocyanates with b) compounds with at least two reactive hydrogens, which contain or are composed of b1) at least one polyether-polyol with an average functionality of from 3 to 8, a hydroxyl number of from 200 to 1000 and an alkali metal ion content of from 150 to 1200 ppm or, preferably, a mixture of (b1) and castor oil and/or at least one polyetherpolyol (b2) with a functionality of from 2 to 3, a hydroxyl number of from 90 to 200 and an alkali metal ion content of less than 10 ppm in the presence or absence of c) catalysts and to a process for preparing the polyurethane embedding compositions and to the use thereof for articles used in medicine.
-
Patent Agency Ranking
公开(公告)号：DE59307876D1
公开(公告)日：1998-02-05
申请号：DE59307876
申请日：1993-06-01
Applicant: BASF AG
Inventor： HINZ WERNER DR , MALETZKO CHRISTIAN DR , BECKER JOHANNES DR , MATZKE GUENTER DR
Abstract: The invention relates to a process for the preparation of compact or cellulose elastomers containing urethane and urea groups by reacting a) at least one organic and/or modified organic polyisocyanate with b) at least one N-propoxylated polyoxyalkylene-polyamine containing at least 50% of secondary amino groups or a mixture of said N-propoxylated polyoxyalkylene-polyamines and polyoxyalkylene-polyamines having 2 to 4 primary amino groups and molecular weights of from 1,000 to 8,000, and c) at least alkyl-substituted aromatic polyamine having a molecular weight of up to 500, in the presence or absence of d) catalysts, and optionally e) blowing agents, f) auxiliaries and/or g) additives. om
-
公开(公告)号：AT161558T
公开(公告)日：1998-01-15
申请号：AT93108756
申请日：1993-06-01
Applicant: BASF AG
Inventor： HINZ WERNER DR , MALETZKO CHRISTIAN DR , BECKER JOHANNES DR , MATZKE GUENTER DR
Abstract: The invention relates to a process for the preparation of compact or cellulose elastomers containing urethane and urea groups by reacting a) at least one organic and/or modified organic polyisocyanate with b) at least one N-propoxylated polyoxyalkylene-polyamine containing at least 50% of secondary amino groups or a mixture of said N-propoxylated polyoxyalkylene-polyamines and polyoxyalkylene-polyamines having 2 to 4 primary amino groups and molecular weights of from 1,000 to 8,000, and c) at least alkyl-substituted aromatic polyamine having a molecular weight of up to 500, in the presence or absence of d) catalysts, and optionally e) blowing agents, f) auxiliaries and/or g) additives. om
-
公开(公告)号：DE4321204C2
公开(公告)日：1997-09-18
申请号：DE4321204
申请日：1993-06-25
Applicant: BASF AG
Inventor： HINZ WERNER DR , KEPPELER UWE DR , GUETTES BERND
Abstract: The invention relates to a process for the production of rigid polyurethane foams 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 optionally c) low-molecular-weight chain extenders and/or crosslinking agents, in the presence of d) blowing agents, e) catalysts and optionally f) auxiliaries and/or additives, where the relatively high-molecular-weight compounds (b) containing at least two reactive hydrogen atoms are polyoxypropylene-polyols and/or polyoxyethylene-polyoxypropylene-polyols containing up to 30% by weight, based on the weight of the alkaline oxide units, of oxyethylene units bonded inside the chain, containing secondary hydroxyl groups, having a functionality of from 4.5 to 4.8 and a hydroxyl number of from 430 to 470 mg KOH/g, which can be prepared by anionic polymerisation of 1,2-propylene oxide and optionally ethylene oxide onto a binary initiator molecule mixture comprising sucrose and glycerol.
-
59.发明专利
公开(公告)号：DE19548350A1
公开(公告)日：1997-06-26
申请号：DE19548350
申请日：1995-12-22
Applicant: BASF AG
Inventor： HINZ WERNER DR , KRAUS RUPERT DR , LARBIG HARALD DR , GUETTES BERND , SCHERZER DIETRICH DR , TISCHER GERLINDE
IPC: C07G1/00 , C08G18/64 , C08G65/26 , C08G18/42 , C08G18/44 , C08G18/48 , C08G18/52 , C08G18/56 , C08G18/60 , C08G18/63 , C08G65/28 , C08G65/32 , C08L75/04
Abstract: Polyhydroxyl compound (I) containing lignin is new. (I) is obtained by reacting (a1) a solution containing (a11) lignin with a salt content (measured as Na and K ion content) of
-
公开(公告)号：DE59303097D1
公开(公告)日：1996-08-08
申请号：DE59303097
申请日：1993-02-10
Applicant: BASF AG
Inventor： HINZ WERNER DR , ZSCHIESCHE RUTH DR , LUTTER HEINZ-DIETER DR , BRUCHMANN BERND DR
Abstract: The invention relates to a process for the production of CFC-free flexible (moulded) polyurethane foams of low density by reacting A) liquid polyisocyanate mixtures containing bonded urethane groups and containing from 22 to 30% by weight of NCO groups, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyantes and polyphenylpolymethylene polyisocyanates (crude MDI) with at least one polyoxypropylene-polyoxyethylene-polyol having a functionality of from 2.5 to 3.5, a hydroxyl number of from 50 to 90 and a content of polymerised ethylene oxide groups of from greater than 30 to less than 50% by weight, based on the weight of polymerised ethylene oxide and 1,2-propylene oxide groups, or by reacting 4,4'-diphenylmethane diisocyanate (MDI) or an MDI isomer mixture with said polyoxypropylene-polyoxyethylene-polyol to give an NCO-containing quasi prepolymer and diluting this quasi prepolymer with crude MDI, with B) relatively high-molecular-weight polyhydroxyl compounds and optionally C) low-molecular-weight chain extenders and/or crosslinking agents in the presence of D) blowing agents, E) catalysts and optionally F) auxiliaries and/or additives, and the urethane group-modified polyisocyanate mixtures (A) which can be used according to the invention.
-
-
-
-
-
-
-
-
-
Search Results
90
records
(took 0.031 seconds)
