专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

DE59604453D1 未知
公开(公告)号：DE59604453D1
公开(公告)日：2000-03-23
申请号：DE59604453
申请日：1996-06-11
申请人： BAYER AG
发明人： DEIBELE DR , WILMES DR , DAHMER DR
IPC分类号： C07C269/08 , C07C271/20 , C07C271/24
摘要： The process concerns the purificn. of diurethanes of the formula R-O-CO-NH-R'-NH-CO-O-R (I), in which R = 1-6 C alkyl, 5-6 C cycloalkyl or phenyl; R' = a gp. obtd. by removing the NCO gps. from an organic diisocyanate with a mol. wt. of 140-300. The process involves the removal of low-boiling by-prods. (II) by carrier vapour distn. to recover (II) as carrier vapour distillate and (I) freed from (II) as distn. residue. The novelty is that an alcohol vapour is used as carrier vapour.

2. 发明专利

DE59711127D1 未知
公开(公告)号：DE59711127D1
公开(公告)日：2004-01-29
申请号：DE59711127
申请日：1997-08-18
申请人： BAYER AG
发明人： WAMPRECHT DR , WILMES DR , KIRCHMEYER DR , MAZANEK DR
IPC分类号： C08G18/10 , C08G18/28 , C08G18/32 , C08G18/48 , C08G18/66 , C09D5/00 , C09D5/02 , C09D7/45 , C09D175/04 , C09D175/08 , C09K23/00 , C09K23/52
摘要： A solvent-free process for the production of dispersants for incorporating solid components into water-based paints and/or coating materials comprises reacting: (A) a polyisocyanate component with an average NCO functionality of 1.7-2.5 and an NCO content of 10-65 wt% with: (B) 0-75 equiv.% (based on NCO groups in the polyisocyanate) of a monohydric polyether-alcohol with a mol. wt. of 150-5000 containing 40-99.5 wt% ethylene oxide units, obtained by alkoxylation of a monohydric starter molecule optionally followed by addition reaction with up to 40 wt% epsilon -caprolactone (based on starter), (C) 0-75 equiv.% monohydric alcohol(s) other than the polyether alcohol with a mol. wt. of 32-5000, (D) 0-35 equiv.% tert. amine(s) with a mol. wt. of 88-250 containing isocyanate-reactive groups, and/or (E) 0-65 equiv.% component(s) with a mol. wt. of 32-3000 which is/are at least difunctional with regard to the NCO addition reaction, at an NCO index of 100-600 and with the formation of urethane and optionally urea structures, any excess NCO groups reduced to a level of not more than 1.0 wt% by simultaneous or subsequent secondary reactions. Also claimed are water-soluble, hydrophilic polyisocyanate addition products with polyether chains, containing not more than 1.0 wt% isocyanate groups and 30-95 wt% EO units in the form of polyether chains attached via the polyether alcohol component.

3. 发明专利

DE59806308D1 未知
公开(公告)号：DE59806308D1
公开(公告)日：2003-01-02
申请号：DE59806308
申请日：1998-03-09
申请人： BAYER AG
发明人： FISCHER DR , WILMES DR , ARLT PROF DR , CASSER DR , MAAS PETER , WOESTENBORGHS PIERRE , VAN DER KNAAP THEO DR , REINTJENS RAF
IPC分类号： C07C209/48 , C07B61/00 , C07C209/50 , C07C209/62 , C07C209/68 , C07C209/86 , C07C211/36 , C07C231/10 , C07C233/41
摘要： A 3-stage process for the production of 1-amino-1-methyl- 3(4)-aminomethylcyclohexane (AMCA) from 1-formamido-1-methyl- 3(4)-cyanocyclohexane (FMC) which is obtained in a preceding stage by reaction of 4(5)-cyano-1-methylcyclohexene (CMC) with hydrogen cyanide in presence of sulphuric acid, dilution with water and/or neutralisation with ammonia, and extraction. The process comprises (a) catalytic hydrogenation of FMC to 1-formamido-1-methyl-3(4)-aminomethylcyclohexane (FMA) and/or 1-amino-1-methyl-3(4)-formamidomethylcyclohexane (AMF) and/or 1-formamido-1-methyl-3(4)-formamidomethylcyclohexane (FMF) and/or AMCA, (b) reaction of FMA and/or AMF and/or FMF with an alkaline compound to give AMCA and a formic acid derivative, and (c) separation by fractional distillation and/or crystallisation and filtration. Also claimed are the formamido compounds FMA and FMF as above.

4. 发明专利

DE59710872D1 未知
公开(公告)号：DE59710872D1
公开(公告)日：2003-11-27
申请号：DE59710872
申请日：1997-02-26
申请人： BAYER AG
发明人： BLUM DR , NAUJOKS DIPL-CHEM-ING , REIFF DR , WILMES DR , MEIER-WESTHUES DR , AUDENAERT DR
IPC分类号： C08L75/04 , C03C25/10 , C08G18/00 , C08G18/08 , C08G18/12 , C08G18/28 , C08G18/42 , C08G18/48 , C08G18/50 , C08G18/65 , C08G18/66 , C08G18/72 , C08G18/75 , C09D175/00 , C09D175/02 , C09D175/04
摘要： Aqueous polyurethane-urea (PUU) dispersions which show film-forming temperatures (MFT) of not more than 20 degrees C without using film-forming additives, and which dry at room temperature to give films with a pendulum hardness (DIN 53157) of at least 100 seconds, in which the solid material has urethane and urea group contents of 7-20 and 5-18 wt.% respectively and contains 15-70 wt.% of structural units of formula (I) and/or (II), X = -O- and/or -NA-, with A = H or -(CH2)n-B- (with B = H or X and n = 2). Also claimed are: (i) a process for the production of these PUU dispersions; and (ii) paint containing these dispersions.

5. 发明专利

DE50004051D1 未知
公开(公告)号：DE50004051D1
公开(公告)日：2003-11-20
申请号：DE50004051
申请日：2000-06-13
申请人： BAYER AG
发明人： LAAS DR , WILMES DR , MEIER-WESTHUES DR , ULLRICH MARTIN , FISCHER DR , FREUDENBERG DR
IPC分类号： C08G18/08 , C08G18/42 , C08G18/66 , C08G18/79 , C08G18/80
摘要： Production of uretedione group containing polyaddition products that are solid below 40 degrees C and are liquid above 125 degrees C, comprises reaction of an uretedione group containing polyisocyanate with polyols and other monofunctional compounds such that the equivalent ratio of isocyanate group to isocyanate reactive group is 1.8:1-0.6:1 and the reaction is carried out in a static mixer. A process for the production of uretedione group containing polyaddition products (I), that are solid below 40 degrees C and are liquid above 125 degrees C, comprises reaction of: (A) uretedione group containing polyisocyanates having an average isocyanate functionality of at least 2.0; optionally with the addition of (B) upto 70 wt.% other diisocyanates (w.r.t. total of (A) and (B); with (C) polyols having a mol. wt. of 62-2000 and an average functionality of at least 2.0 or mixture of (C); with (D) up to 40 wt.% other monofunctional compounds (w.r.t. total of (C) and (D)) that are reactive with isocyanate groups such that the equivalent ratio of isocyanate group to isocyanate reactive group is 1.8:1-0.6:1 and the reaction is carried out in a static mixer.

6. 发明专利

DE59705128D1 未知
公开(公告)号：DE59705128D1
公开(公告)日：2001-12-06
申请号：DE59705128
申请日：1997-03-03
申请人： BAYER AG
发明人： DAHMER DR , SCHLEENSTEIN DR , STEUDE HEINRICH , WILMES DR , RASP DR , RONGE DR , NACHTKAMP DR , LITZ DR , KABELAC DR
IPC分类号： C07C263/04 , C07C265/04 , C07C265/14 , C07C269/06 , C07C271/20
摘要： The use of a solvent (I) for the thermal cracking of carbamic esters (II) is claimed. (I) has a definite b.pt. (pure substance) or a narrow boiling range

7. 发明专利

DE59710873D1 未知
公开(公告)号：DE59710873D1
公开(公告)日：2003-11-27
申请号：DE59710873
申请日：1997-05-02
申请人： BAYER AG
发明人： WILMES DR , BAUMBACH DR , NACHTKAMP DR , KOENIG DR , DEARTH RANDALL , BOCK DR , WIECZORREK DIPL-ING
IPC分类号： C03C17/32 , C08G18/08 , C08G18/12 , C08G18/64 , C08G18/70 , C08G18/75 , C08G18/79 , C08G18/80 , C09D175/04
摘要： Aqueous polyurethane coatings - contain a binder comprising (a) water-soluble or dispersible polyol component, (b) water-soluble or dispersible polyisocyanate component with capped isocyanate groups and (c) optional standard auxiliary agents and additives. The ratio of capped isocyanate groups in (b) to hydroxyl groups in (a) is at least 0.8:1.Component (a) comprises the following : (A1) 20-60 wt.% polyisocyanate comprising at least 50 wt.% 4,4`-diisocyanatodicyclohexyl methane and the rest other organic polyisocyanates with molecular weights of 140-1500 ; (B1) 20-65 wt.% one or more polyether polyols with hydroxy values of 25-350 mg KOH/g substance ; (C1) 2-12 wt.% (potential) anionic chain extender comprising at least one compound containing one or more groups which can react with NCO groups and at least one group which may be at least partially neutralised and can form salts ; (D1) 0-12 wt.% non-ionic hydrophilic chain extender, comprising at least one mono- or bifunctional ( relative to an isocyanate addition reaction) compound containing one or more hydrophilic polyether chains ; (E1) 0-15 wt.% one or more alcohols containing 2-4 hydroxyl groups and having molecular weights of 62-250 ; (F1) 0-15 wt.% one or more (cyclo)aliphatic polyamines containing 2-4 amino groups and having molecular weights of 60-300 ; (G1) 0-30 wt.% one or more (cyclo)aliphatic polyamine polyhydroxy compounds containing a total of 2-4 amino and hydroxyl groups and having molecular weights of 61-300 ; and (H1) 0-15 wt.% one or more mono- or bifunctional (relative to an isocyanate addition reaction) stabiliser component containing 1-2 hydrazide groups and having molecular weights of 70-300. Component (b) comprises : (A2) 40-80 wt.% polyisocyanate with an isocyanurate group content (calculated as C3N3O3 ; molecular weight = 26) of 2-30 wt.%, derived from diisocyanates molecular weights of 140-350 ; (B2) 5-30 wt.% one or more monofunctional (relative to an isocyanate addition reaction) capping agent for isocyanate groups ; (C2) 0-15 wt.% (potential) anionic chain extender comprising at least one compound containing one or more groups which can react with NCO groups and at least one group which may be at least partially neutralised and can form salts ; (D2) 5-30 wt.% non-ionic hydrophilic chain extender, comprising at least one mono- or bifunctional (relative to an isocyanate addition reaction) compound containing one or more hydrophilic polyether chains ; (E2) 0-15 wt.% one or more alcohols containing 2-4 hydroxyl groups and having molecular weights of 62-250 ; (F2) 0-15 wt.% one or more (cyclo)aliphatic polyamines containing 2-4 amino groups and having molecular weights of 60-300 ; and (G2) 0.5-15 wt.% one or more mono- or bifunctional (relative to an isocyanate addition reaction) stabiliser component containing 1-2 hydrazide groups and having molecular weights of 70-300. Also claimed is the preparation of these coating materials.

8. 发明专利

DE59709939D1 未知
公开(公告)号：DE59709939D1
公开(公告)日：2003-06-05
申请号：DE59709939
申请日：1997-02-17
申请人： BAYER AG
发明人： NACHTKAMP DR , WILMES DR , ARNING DIPL-ING , ROSCHU DIPL-ING
IPC分类号： C08L75/04 , C03C25/10 , C08G18/00 , C08G18/08 , C08G18/12 , C08G18/28 , C08G18/42 , C08G18/48 , C08G18/50 , C08G18/65 , C08G18/66 , C08G18/72 , C08G18/75 , C09D175/00 , C09D175/02 , C09D175/04
摘要： Aqueous polyurethane-urea (PUU) dispersions which show film-forming temperatures (MFT) of not more than 20 degrees C without using film-forming additives, and which dry at room temperature to give films with a pendulum hardness (DIN 53157) of at least 100 seconds, in which the solid material has urethane and urea group contents of 7-20 and 5-18 wt.% respectively and contains 15-70 wt.% of structural units of formula (I) and/or (II), X = -O- and/or -NA-, with A = H or -(CH2)n-B- (with B = H or X and n = 2). Also claimed are: (i) a process for the production of these PUU dispersions; and (ii) paint containing these dispersions.

9. 发明专利

DE59804619D1 未知
公开(公告)号：DE59804619D1
公开(公告)日：2002-08-08
申请号：DE59804619
申请日：1998-03-09
申请人： BAYER AG
发明人： FISCHER DR , WILMES DR , ARLT PROF DR , CASSER DR , MAAS PETER , WOESTENBORGHS PIERRE , VAN DER KNAAP DR , REINTJENS RAF
IPC分类号： C07C209/48 , C07C209/50 , C07C209/62 , C07C209/68 , C07C209/86 , C07C211/36

10. 发明专利

DE59705127D1 未知
公开(公告)号：DE59705127D1
公开(公告)日：2001-12-06
申请号：DE59705127
申请日：1997-03-03
申请人： BAYER AG
发明人： SCHLEENSTEIN DIETER , RASP DR , RONGE DR , WILMES DR
IPC分类号： C07C263/04 , C07C265/04 , C07C265/14 , C07C269/06 , C07C271/20
摘要： The use of a solvent (I) for the thermal cracking of carbamic esters (II) is claimed. (I) has a definite b.pt. (pure substance) or a narrow boiling range

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式