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公开(公告)号：DE4119459A1
公开(公告)日：1992-12-17
申请号：DE4119459
申请日：1991-06-13
Applicant: BASF AG
Inventor： VOLKERT OTTO DR , MAURER WALTER DR
Abstract: The invention relates to a process for the preparation of cellular plastics by the polyisocyanate polyaddition process, 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 … f) assistants and/or additives, … where the blowing agents (d) used are …… d1) low-boiling, fluorinated and/or perfluorinated tertiary alkylamines or … mixtures of (d1) and at least one further physical and/or chemical blowing agent (d2) other than (d1), … and to blowing agent-containing emulsions of the abovementioned blowing agents (d1) or the blowing agent mixture of (d1) and (d2) and the formative components (a), (b), (c) or (b) and (c).
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公开(公告)号：DE4020079A1
公开(公告)日：1992-01-02
申请号：DE4020079
申请日：1990-06-23
Applicant: BASF AG
Inventor： BOEHME RALF , VOLKERT OTTO DR
Abstract: A process for the preparation of cellular plastics, preferably rigid structural polyurethane foams, by the polyisocyanate polyaddition process involves 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 from the group comprising tertiary alcohols (di), preferably tertiary butanol, or a mixture of at least one tertiary alcohol (di) and water (dii), e) catalysts and optionally f) assistants and/or additives. a
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公开(公告)号：DE3309127A1
公开(公告)日：1984-09-20
申请号：DE3309127
申请日：1983-03-15
Applicant: BASF AG
Inventor： GRABHOEFER HERBERT DR , VOLKERT OTTO DR
Abstract: A cellular polyurethane having a density of from 15 Kg/m3 to 400 Kg/m3 obtained by means of thermoforming, in a forming tool, at a compression factor of from 1 to 10 and temperatures of from 140 DEG C. to 200 DEG C., polyester-urethane foams having a density of from 15 Kg/m3 to 40 Kg/m3 which are based on aromatic polyisocyanates and polyester polyols. The resulting polyurethane shaped objects are suitable for use as self-supporting trim panels, headliners, engine compartment covers, or instrument panels in the automotive, aircraft or railway industries.
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公开(公告)号：CH613712A5
公开(公告)日：1979-10-15
申请号：CH725875
申请日：1975-06-05
Applicant: BASF AG
Inventor： PETERHANS JOSEF DR , VOLKERT OTTO DR , BECKERLE WILHELM FRIEDRICH
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公开(公告)号：DE2301175A1
公开(公告)日：1974-08-01
申请号：DE2301175
申请日：1973-01-11
Applicant: BASF AG
Inventor： RICHTER PETER DR , WIGGER AUGUST DR , ELZER ALBERT DR , VOLKERT OTTO DR
IPC: C08F283/00 , G03F7/00 , G03F7/035 , G03F7/11
Abstract: 1454191 Presensitized flexographic printing plates BASF AG 10 Jan 1974 [11 Jan 1973] 01168/74 Heading G2C A presensitized plate comprises a base, a non- photocrosslinkable elastomeric polymer intermediate layer 0À1-6 mm thick (i) having a Shore A hardness of 15-70 which is at least 20 below the Shore A hardness of the photocrosslinkable layer (below) in photocrosslinked state, (ii) being insoluble in the developer (below) and (iii) being bonded to the base, and a photocrosslinkable layer comprising a photoinitiator-containing photocrosslinkable material which comprises one or more polymers having in admixture therewith one or more photocrosslinkable monomers compatible with the polymer(s) and having one or more C-C multiple bonds 0À1-6 mm thick having the following features: (i) all or a major proportion by weight of its content of the polymer(s) consists of a polyurethane elastomer soluble in a developer and produced using one or more aliphatic polyisocyanates, (ii) the Shore A hardness of its material when photocrosslinked is 50-90 and (iii) it is bonded to the intermediate layer above. The photocrosslinkable layer may comprise 70-90 wt. per cent of the polymer(s) and 10-30 wt. per cent of the monomer(s), based on the weight of polymer(s) plus monomer(s). The base may be flexible or rigid, may or may not reflect actinic exposing radiation and may be steel, aluminium or polyester. The intermediate layer may comprise natural rubber, styrene-butadiene rubber, polybutadiene rubber, butadiene-acrylonitrile rubber, elastomeric ethylene-propylene copolymer, elastomeric propylene oxide polymer, silicone rubber, polysulphide rubber (see Example 4), elastomeric vinylidene fluoride - hexafluoropropylene copolymer, nitrile rubber (see Example 5) or polyurethane (see Examples 1-3) which may be derived from an aromatic diisocyanate e.g. toluylenediisocyanate. The photocrosslinkable layer may contain a dye e.g. Zapon Fast Black (see Example 4). After exposure and development the relief printing plate produced may be re-exposed for 10 minutes before it is dried for 20 minutes at 70C in a freshair dryer (see Examples 2, 4 and 5). Reference by way of disclaimer is made to 201/74.
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Patent Agency Ranking
公开(公告)号：DE2232497A1
公开(公告)日：1974-01-17
申请号：DE2232497
申请日：1972-07-01
Applicant: BASF AG
Inventor： HICKMANN ECKHARD DR , FISCHER MARTIN DR , VOLKERT OTTO DR , JUN MONG-JON DR DR
IPC: C08F2/00 , C07C45/00 , C07C45/71 , C07C49/84 , C07C67/00 , C07D309/12 , C08F2/46 , C08F2/50 , G03F7/031 , G21C13/073 , G21C13/093 , C07D7/04
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公开(公告)号：DE59911158D1
公开(公告)日：2005-01-05
申请号：DE59911158
申请日：1999-01-20
Applicant: BASF AG
Inventor： VOLKERT OTTO DR , SCHERZER DIETRICH DR
Abstract: In the production of finely cellular rigid polyurethane foam by reacting (a) polyisocyanates with (b) compounds with at least 2 reactive hydrogen atoms in the presence of (c) blowing agent, (d) catalyst and optionally (e) ancillaries and/or additives, perfluoro compounds are used as blowing agent (c) and are emulsifier in (a) and/or (b) and water and air are removed from components (a) to (e) before reaction to the polyurethane. An Independent claim is also included for polyurethane foam produced in this way.
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公开(公告)号：ES2081887T5
公开(公告)日：2002-12-01
申请号：ES90118532
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：DK0421269T4
公开(公告)日：2002-08-26
申请号：DK90118532
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：AT186925T
公开(公告)日：1999-12-15
申请号：AT96107839
申请日：1996-05-17
Applicant: BASF AG
Inventor： VOLKERT OTTO DR , BRANDT PETER DR , FUCHS HARALD
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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