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公开(公告)号：DE2964667D1
公开(公告)日：1983-03-10
申请号：DE2964667
申请日：1979-05-28
Applicant: BASF AG
Inventor： HORACEK HEINRICH DR , SCHOEN ERNST DR , REICH ERHARDT DR , VOLKERT OTTO DR
IPC: C08G18/00 , C08G18/16 , C08G18/18 , C08G18/22 , C08G18/72 , C08G18/73 , C08G18/75 , C08G18/78 , C08G18/80 , C08G18/14
Abstract: To prepare light-stable polyurethane integral skin foams, especially soft integral foams, aliphatic and/or cycloaliphatic polyisocyanates, both categories preferably containing urethane groups and/or biuret groups, are reacted with polyols in the presence of blowing agents and of a synergistic catalyst combination comprising an alkali metal hydroxide, alkali metal alcoholate, alkali metal phenolate, alkali metal salt of a weak acid and/or hexahydrotriazine derivative and an organic tin, zinc and/or iron(II) compound, in the presence or absence of assistants and adjuvants. The preferred catalyst combination is tri-(dimethylaminopropyl)-s-hexahydrotriazine and dibutyl-tin dilaurate.
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公开(公告)号：DE19728543A1
公开(公告)日：1999-01-07
申请号：DE19728543
申请日：1997-07-04
Applicant: BASF AG
Inventor： GLUECK GUISCARD DR , HAHN KLAUS DR , ROTERMUND UDO DR , VOLKERT OTTO DR
Abstract: In the production of rigid polyurethane (PUR) foam with low thermal conductivity by reacting (a) organic and/or modified organic polyisocyanates with (b) compounds containing NOTLESS 2 reactive hydrogen atoms in the presence of (c) blowing agent, (d) catalyst and optionally (e) ancillaries and/or additives, the novelty is that graphite is added to (a) and/or (b). Also claimed is rigid PUR foam produced in this way.
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公开(公告)号：DE19618392A1
公开(公告)日：1997-11-13
申请号：DE19618392
申请日：1996-05-08
Applicant: BASF AG
Inventor： VOLKERT OTTO DR , PITTRICH KLAUS
Abstract: A process for the production of elastic polyurethane mouldings with compact surfaces and cellular cores by reacting a) modified organic polyisocyanates with b) at least one compound with at least two reactive hydrogen atoms and possibly c) chain-lengthening agents in the presence of d) blowing agents, e) catalysts and possibly f) conventional auxiliaries and/or additives, in a closed mould under compression, in which at least one reaction product of pure MDI and at least one polyether alcohol (polyoxyalkylene polyol) with an NCO content of
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公开(公告)号：DK0523398T3
公开(公告)日：1996-12-30
申请号：DK92110451
申请日：1992-06-20
Applicant: BASF AG
Inventor： VOLKERT OTTO DR
Abstract: The invention relates to a process for the preparation of rigid foams containing urethane groups or urethane and isocyanurate groups, 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) assistants and/or additives, where the blowing agent (d) used is at least one vinylfluoroalkane of the formula CH2=CH-CnF2n+1 in which n is an integer from 1 to 6 (di), or mixtures of at least one such vinylfluoroalkane (di) and at least one further physical and/or chemical blowing agent (dii) which is different from (di), and to blowing agent-containing emulsions which contain at least one vinylfluoroalkane and at least one formative component (a), (b), (c) or (b) and (c).
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公开(公告)号：DE19519335A1
公开(公告)日：1996-11-28
申请号：DE19519335
申请日：1995-05-26
Applicant: BASF AG
Inventor： VOLKERT OTTO DR , BRANDT PETER DR , FUCHS HARALD DR
IPC: A43B13/04 , C08G18/12 , C08G18/32 , C08G18/66 , C08G18/10 , C08G18/40 , C08G18/65 , C08G18/42 , C08G18/48 , C08L75/04 , B29D31/515
Abstract: A process for producing moldings containing ester and urethane groups and having a cellular core and a compacted surface zone, preferably shoe soles, comprises reacting a) isocyanate semiprepolymers containing ester groups and having an isocyanate content of from 10 to 26% by weight, which in turn are prepared by reacting ai) 4,4'-MDI or mixtures of 4,4'-MDI and modified or unmodified MDI isomers, with aii) difunctional to trifunctional polyester polyols having molecular weights of from 600 to 3000 and aiii) at least one branched-chain dihydroxy compound containing at least one bonded ester unit as bridge and having a molecular weight of up to 500, with b) at least one relatively high molecular weight polyhydroxyl compound and, if desired, c) low molecular weight chain extenders and/or crosslinkers in the presence of d) blowing agents, e) catalysts and, if desired, f) additives in a closed mold with compaction. The isocyanate semiprepolymers containing ester groups which can be used in this process are liquid at room temperature.
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Patent Agency Ranking
公开(公告)号：DE59010045D1
公开(公告)日：1996-02-22
申请号：DE59010045
申请日：1990-09-27
Applicant: BASF AG
Inventor： VOLKERT OTTO DR
IPC: B32B27/00 , C08G18/00 , C08G18/42 , C08G18/48 , C08G18/76 , C08J9/12 , C08J9/14 , C08L75/04 , F25D11/00
Abstract: The invention relates to a process for preparation of rigid polyurethane foams having low thermal conductivity by reacting …… a) organic and/or modified organic polyisocyanates with … b) at least one relatively high molecular weight compound having at least two reactive hydrogen atoms and optionally … c) low molecular weight chain extenders and/or crosslinking agents in the presence of … d) cyclopentane (d1) or mixtures (d2) which contain: …… d2i) cyclopentane and/or cyclohexane and … d2ii) at least one compound which is homogeneously miscible with cyclopentane and/or cyclohexane and preferably has a boiling point below 35 DEG C, selected from the group consisting of the alkanes, cycloalkanes having not more than 4 carbon atoms, dialkyl ethers, cycloalkylene ethers and fluoroalkanes,… optionally in conjunction with water, as blowing agents (d), …… e) catalysts and optionally … f) auxiliaries and/or additives. …… The rigid polyurethane foams are used in the refrigerator industry and as insulating material in heating and composite elements.
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公开(公告)号：AT99714T
公开(公告)日：1994-01-15
申请号：AT90101788
申请日：1990-01-30
Applicant: BASF AG
Inventor： FISCH HERBERT DR , MAEMPEL LOTHAR DR , VOLKERT OTTO DR
IPC: C08G18/08 , C08G18/10 , C08L61/10 , C09J175/04
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公开(公告)号：DE3903538A1
公开(公告)日：1990-08-16
申请号：DE3903538
申请日：1989-02-07
Applicant: BASF AG
Inventor： FISCH HERBERT DR , MAEMPEL LOTHAR DR , VOLKERT OTTO DR
IPC: C08G18/08 , C08G18/10 , C08L61/10 , C09J175/04
Abstract: Emulsifier-free aqueous polyurethane dispersions are prepared by reacting (a) dihydroxy compounds, (b) diisocyanates and (c) chain extenders to give a prepolymer having terminal isocyanate groups, then reacting the prepolymer with (d) salts of aliphatic aminocarboxylic or -sulfonic acids or amino-containing or hydroxyl-containing tertiary ammonium salts, dispersing the resulting polyurethane in water and, if required, removing the organic solvent by distillation. In the process, an organic condensation resin which is dissolved in a solvent is admixed before the polyurethane obtained is dispersed in water.
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公开(公告)号：DE3424537A1
公开(公告)日：1986-01-09
申请号：DE3424537
申请日：1984-07-04
Applicant: BASF AG
Inventor： VOLKERT OTTO DR , HESSE ANTON DR
IPC: C08K5/3492 , C08L67/06 , C08K3/22 , C08K5/34 , C08K7/02
Abstract: Mouldable semifinished materials, containing A. unsaturated polyesters, B. monomers, C. optionally organic polymers, D. fibrous reinforcing agents, E. fillers, F. optionally thickeners, G. organic peroxides, I. optionally further additives Component E is melamin in an amount of from 50 to 200 % by weight based on A + B. The semifinished materials can be cured to give automotive, electrical or furniture parts.
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