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1.
公开(公告)号:US20200325267A1
公开(公告)日:2020-10-15
申请号:US16304982
申请日:2017-06-14
摘要: The present disclosure relates to a method for producing a composition containing isocyanate and isocyanurate groups having the following steps: 1) mixing a monomer polyisocyanate with polymer diphenylmethane diisocyanate, thereby obtaining a mixture, and 2) allowing the mixture obtained in step 1) to react in the presence of a trimerization catalyst, thereby obtaining a composition containing isocyanate and isocyanurate groups. The monomer polyisocyanate used in step 1) has a total chlorine content of
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公开(公告)号:US20200308333A1
公开(公告)日:2020-10-01
申请号:US16764999
申请日:2018-12-14
摘要: The present invention relates to polyurethane hybrid polymers and to a process for producing same.
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3.
公开(公告)号:US20180009929A1
公开(公告)日:2018-01-11
申请号:US15551369
申请日:2016-02-25
CPC分类号: C08G18/025 , C08G18/168 , C08G18/7671 , C08G18/797
摘要: A method for producing a composition comprising polycarbodiimide, comprising the step of the reaction of a reaction mixture which contains an aromatic polyisocyanate and a carbodiimidising catalyst, wherein, before the reaction, the aromatic polyisocyanate is treated at a temperature of ≧80° C. to ≦150° C. and a pressure of ≧1 mbar to ≦500 mbar by passing through an inert gas and/or during the reaction, the reaction mixture is treated at a temperature of ≧80° C. to ≦150° C. and a pressure of ≧1 mbar to ≦500 mbar by passing through an inert gas and wherein the content of hydrolysable chlorine in the reaction mixture is ≦10 ppm.
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公开(公告)号:US09718936B2
公开(公告)日:2017-08-01
申请号:US14377072
申请日:2013-02-05
发明人: Stephan Schleiermacher , Patrick Klasen , Reinhard Albers , Stephan Moers , Dirk Steinmeister , Dieter Seidel , Torsten Heinemann , Hans-Detlef Arntz
IPC分类号: C08J9/00 , C08G18/48 , C08G18/76 , C08G18/79 , C08G18/30 , C08G18/09 , C08G18/10 , C08G18/22 , C08G18/42 , C08G18/32 , C08G18/73 , C08J9/36 , C08G101/00
CPC分类号: C08J9/00 , C08G18/092 , C08G18/10 , C08G18/225 , C08G18/302 , C08G18/3206 , C08G18/4238 , C08G18/4837 , C08G18/73 , C08G18/7664 , C08G18/794 , C08G2101/0025 , C08G2101/005 , C08G2101/0083 , C08J9/365 , C08J2375/08
摘要: The present invention relates to a process for producing a rigid polyurethane-polyisocyanurate foam C, comprising the step of reacting (i) an isocyanate-terminated prepolymer B with (ii) an activator component A comprising at least one trimerization catalyst A1 and at least one blowing agent A3 in a reaction mixture to form a foam, characterized in that—there is used an isocyanate-terminated prepolymer B obtained from a reaction of an isocyanate B1 having a mean isocyanate functionality of from ≧2.3 to ≦2.9 with a polyol component B2, and—the activator component A comprises water as the blowing agent A3 in an amount of from ≧5 wt. % to ≦50 wt. %,—the isocyanate index in the reaction mixture is in a range of from ≧400 to ≧500, and—the isocyanate content of the prepolymer B is in a range of from ≧21 wt. % to ≦30 wt. %, based on the total mass of the prepolymer B, and—wherein in the reaction of the prepolymer B and the activator component A a conversion contribution to polyisocyanurate of ≦75% is achieved. Rigid foams C so produced have good flame retarding properties while at the same time having good insulating properties and stability properties. The present invention relates further to a rigid polyisocyanurate foam C produced by the process according to the invention, to the use of such a rigid polyisocyanurate foam C in the production of heat-insulating structural components, and to a heat-insulating structural component comprising such a rigid polyurethane-polyisocyanurate foam.
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公开(公告)号:US11359045B2
公开(公告)日:2022-06-14
申请号:US16768735
申请日:2018-12-14
发明人: Christian Hahn , Hans-Detlef Arntz , Stephan Schubert , Ernst Felske , Claudia Houben , Frank Behrendt
摘要: The invention relates to a continuous method for producing an isocyanurate-containing isocyanate mixture, in which in a step a) a mixture of a first and a second isocyanate component and an isocyanate group trimerization catalyst is provided; in a step b) the mixture obtained in step a) is reacted in a first residence time zone at an elevated temperature; in a step c), the reaction mixture obtained in step b) is further heated in a second residence time zone, optionally after adding a stopper; and in a step d), the reaction mixture obtained in step c) is cooled down in a third residence time zone by way of lowering the temperature, thus obtaining the desired isocyanurate-containing isocyanate mixture.
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公开(公告)号:US10889679B2
公开(公告)日:2021-01-12
申请号:US16764999
申请日:2018-12-14
摘要: The present invention relates to polyurethane hybrid polymers and to a process for producing same.
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公开(公告)号:US20210171699A1
公开(公告)日:2021-06-10
申请号:US16768735
申请日:2018-12-14
发明人: Christian Hahn , Hans-Detlef Arntz , Stephan Schubert , Ernst Felske , Claudia Houben , Frank Behrendt
摘要: The invention relates to a continuous method for producing an isocyanurate-containing isocyanate mixture, in which in a step a) a mixture of a first and a second isocyanate component and an isocyanate group trimerization catalyst is provided; in a step b) the mixture obtained in step a) is reacted in a first residence time zone at an elevated temperature; in a step c), the reaction mixture obtained in step b) is further heated in a second residence time zone, optionally after adding a stopper; and in a step d), the reaction mixture obtained in step c) is cooled down in a third residence time zone by way of lowering the temperature, thus obtaining the desired isocyanurate-containing isocyanate mixture.
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公开(公告)号:US20210139634A1
公开(公告)日:2021-05-13
申请号:US17152853
申请日:2021-01-20
发明人: Rolf Albach , Hans-Detlef Arntz , Petra Venner
摘要: The present invention relates to the use i) of one or more compounds selected from the group consisting of R1R2C═CR3—C(O)—O—R4 (I.), R5R6C═CR7—C(O)—O—R8—O—(O)C—R9C═CR10R11 (II.), R12R13C═CR14—C(O)—O—(O)C—R14C═CR13R12 (III.) and R15R16C═CR17—C(O)—NR18—R19 (IV.), wherein R1 and R2, R4 to R7 and R9 to R19 independently of one another represent H, a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or an aromatic or araliphatic radical having up to 20 carbon atoms which may optionally contain heteroatoms such as N, S or O and which may optionally be substituted, for example by isocyanate-reactive groups, preferably by OH groups, R3 represents H, and R8 represents a saturated or unsaturated, linear or branched, aliphatic divalent radical having up to 20 carbon atoms which may optionally contain heteroatoms such as N, S or O and which may optionally be substituted, for example by isocyanate-reactive groups, preferably by OH groups, and/or ii) of polyester polyols, preferably polyester diols, obtainable by polycondensation of maleic acid, fumaric acid, methacrylic acid or acrylic acid with oligomeric diols such as butanediol, diethylene glycol, propylene glycol, 1,3-propanediol and/or triols such as glycerol having a molecular weight factor per double bond of 150 to 3000, a functionality of 2 to 6, a hydroxyl number of 20 to 800 and an acid number of 0 to 15 in processes for producing polyurethanes, preferably polyurethane foams, for reducing the aldehyde emission of the resulting polyurethanes/polyurethane foams, to a process for producing polyurethanes, preferably polyurethane foams, using one or more compounds of formula IV and to polyurethanes obtainable from this process.
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公开(公告)号:US20180265618A1
公开(公告)日:2018-09-20
申请号:US15759930
申请日:2016-09-15
CPC分类号: C08G18/022 , B32B1/08 , B32B5/18 , B32B2266/0278 , B32B2597/00 , C08G18/1816 , C08G18/1825 , C08G18/3218 , C08G18/4816 , C08G18/4825 , C08G18/4829 , C08G18/61 , C08G18/6677 , C08G18/725 , C08G18/7664 , C08G18/7671 , C08G18/794 , C08G2101/0025 , F16L59/14
摘要: The invention relates to a method for producing rigid polyurethane-polyisocyanurate (PUR/PIR) foams using partially trimerized isocyanate blends. The invention further relates to the rigid polyurethane-polyisocyanurate foams obtainable by said method and to the use thereof in manufacturing composite elements made of the rigid polyurethane-polyisocyanurate foams and suitable coatings. The invention also relates to the composite elements obtainable thereby.
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