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    41.
    发明专利
    未知

    公开(公告)号：DE59207652D1

    公开(公告)日：1997-01-23

    申请号：DE59207652

    申请日：1992-06-20

    Applicant: BASF AG

    Inventor： VOLKERT OTTO DR

    IPC: C08G18/08 ,  C08G18/00 ,  C08G18/40 ,  C08G18/65 ,  C08G18/66 ,  C08G101/00 ,  C08J9/14

    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).

    42.
    发明专利
    未知

    公开(公告)号：DK0421269T3

    公开(公告)日：1996-05-13

    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 ,  C08G18/14

    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.

    43.
    发明专利
    未知

    公开(公告)号：DE4341973A1

    公开(公告)日：1995-06-14

    申请号：DE4341973

    申请日：1993-12-09

    Applicant: BASF AG

    Inventor： SWOBODA JOHANN DR ,  VOLKERT OTTO DR

    IPC: C08G18/40 ,  C08G18/76 ,  C08G18/80 ,  C08G18/81 ,  C08G101/00 ,  C08G18/65 ,  B29C67/20

    Abstract: The invention relates to a process for the preparation of compact or cellular polyurethanes by reacting relatively high-molecular-weight polyhydroxyl compounds and optionally chain extenders and/or crosslinking agents with a liquid polyisocyanate composition containing urethane groups, obtainable from mixtures of diphenylmethane diisocyanates and polyphenyl-polymethylene polyisocyanates and linear, branched or cyclic, saturated or olefinically unsaturated, low-molecular-weight monoalcohols, to the liquid polyisocyanate compositions containing urethane groups which can be used for this purpose, and to the use thereof for the preparation of preferably highly crosslinked polyurethanes, in particular rigid PU (moulded) foams.

    44.
    发明专利
    未知

    公开(公告)号：AT110400T

    公开(公告)日：1994-09-15

    申请号：AT89118740

    申请日：1989-10-09

    Applicant: BASF AG

    Inventor： VOLKERT OTTO DR ,  REICH ERHARD DR ,  TINTELNOT DIETER

    IPC: A43B13/04 ,  C08G18/00 ,  C08J9/14 ,  C08L75/04

    Abstract: The invention relates to a process for the production of mouldings having a compact outer layer and a cellular core, for example soft, flexible shoe soles, having a density of from 0.4 to 1.0 g/cm , by reacting a) organic and/or modified organic polyisocyanates with b) at least one high-molecular-weight compound containing at least two reactive hydrogen atoms and, if desired, c) low-molecular-weight chain extenders and/or crosslinking agents, in the presence of d) low-boiling aliphatic and/or cycloaliphatic hydrocarbons having 4 to 8 carbon atoms in the molecule, preferably pentanes, as blowing agent, e) catalysts and, if desired, f) assistants and/or additives. l

    45.
    发明专利
    未知

    公开(公告)号：DE3486242D1

    公开(公告)日：1993-12-16

    申请号：DE3486242

    申请日：1984-03-07

    Applicant: BASF AG

    Inventor： GRABHOEFER HERBERT DR ,  VOLKERT OTTO DR

    IPC: B29C44/56 ,  B29C67/20 ,  B29C67/24 ,  C08G18/40 ,  C08G18/42 ,  C08G18/76 ,  C08G18/79

    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.

    Mfg. cellular plastics for hard foams - by reacting poly:isocyanate with cpd. contg. reactive hydrogen atoms in presence of mixt. of insol. fluorinated organic cpd. of low b.pt. and iso-alkane as blowing agent
    46.
    发明专利
    Mfg. cellular plastics for hard foams - by reacting poly:isocyanate with cpd. contg. reactive hydrogen atoms in presence of mixt. of insol. fluorinated organic cpd. of low b.pt. and iso-alkane as blowing agent 未知

    公开(公告)号：DE4143148A1

    公开(公告)日：1993-07-01

    申请号：DE4143148

    申请日：1991-12-28

    Applicant: BASF AG

    Inventor： VOLKERT OTTO DR

    IPC: C08J9/14

    Abstract: The plastics (I) are prepd. by reacting (A) organic and/or modified organic polyisocyanate with (B) at least one higher mol. cpd. having 2 or more reactive H atoms, and opt. (C) low mol. chain lengthening agent and/or crosslinking agent in presence of (D) as blowing agent mixt. of (D1) at least one low boiling fluorinated or perfluorinated organic cpd. difficulty soluble or insol. in (A), (B) or (C) and (D2) at least one 6-12C isoalkane, (E) catalyst, and (F) auxilliaries and/or additives. USE/ADVANTAGE - Partic. prodn. of hard foams contg. urethane, and opt. isocyanurate gps. e.g. cellular elastomers in motor car industry for head rests, inner cladding, or exterior parts such as rear spoilers, also shoe soles, soft elastic, semihard or hard foams in motor car, aircraft, shipbuilding, furniture and sports article industries for upholstery materials, housings, ski cores etc. and partic. insulating materials for buildings and refrigeration. Fluorochlorohydrocarbons as blowing agents are at least partly replaced by environmentally friendly agents without negatively affecting fine cell foam structure obtainable using emulsions based on the fluorohydrocarbons, processability is extended and sensitivity to various kinds of foaming appts. is minimised, thermal conductivity (partic. of urethane gp-contg. hard foams) is reduce

    48.
    发明专利
    未知

    公开(公告)号：DE2259360A1

    公开(公告)日：1974-06-12

    申请号：DE2259360

    申请日：1972-12-04

    Applicant: BASF AG

    Inventor： VOLKERT OTTO DR ,  WIGGER AUGUST DR ,  ZUERGER MANFRED ,  RICHTER PETER DR

    IPC: C08F299/00 ,  B05D3/06 ,  C08F283/00 ,  C08F290/00 ,  C08G18/00 ,  C08G18/63 ,  C08J5/18 ,  C08G22/04 ,  C09D3/72

    Abstract: 1450906 Polyurethane layers; photopolymerizing unsaturated monomers BASF AG 3 Dec 1973 [4 Dec 1972] 55919/73 Headings C3R and C3P Polyurethane layers are prepared by adding a compatible monomer having at least two photocross-linkable C-C multiple bonds or a compatible monomer mixture comprising at least 50% by weight of one of such monomers and not more than 50% by weight of a photopolymerizable monoethylenically unsaturated monomer, and optionally also a photopolymerization initiator, to a liquid polyurethane elastomer forming reaction mixture comprising (A) (i) a polyether, polyester, hydroxypolyether urethane or hydroxypolyester urethane or a mixture thereof with a polyalcohol and/or a diamino and (ii) a diisocyanate or (B) (i) a prepolymer of a hydroxyl compound as defined in (A) and a diisocyanate and (ii) a polyester, polyether, hydroxypolyester urethane, hydroxypolyetherurethane, polyhydric alcohol, or diamine or a mixture of two or more thereof, the resulting mixture containing a major amount of the polyurethane elastomer-forming reaction mixture, applying the resulting mixture to a substrate to form a layer, irradiating the layer with electromagnetic radiation of wavelength less than 0À7 Ám to effect photocrosslinking of the monomer(s) and gelling of the layer and thermally curing the so-treated layer. The layer is suitably formed on a continuously moving substrate and has a thickness of from 0À2 to 5 mm. Conventional polyurethane elastomer-forming reactants are used. The monomer having at least two C-C multiple bonds is preferably an olefinically poly-unsaturated carboxylate, for example a diester of a C 2-6 aliphatic diol and acrylic or methacrylic acid, a triester of a C 3-10 aliphatic triol and acrylic or methacrylic acid, a divinyl ester of a C 2-8 dicarboxylic acid, a diallyl ester of a C 2-8 dicarboxylic acid and a vinyl ester or allyl ester of a C 3-5 olefinically unsaturated monocarboxylic acid. The unsaturated monomers are preferably used in amounts not exceeding 10% weight of the reaction mixture.

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