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    High density polyurethane foams
    1.
    发明授权
    High density polyurethane foams 失效
    高密度聚氨酯泡沫

    公开(公告)号：US3856716A

    公开(公告)日：1974-12-24

    申请号：US38456873

    申请日：1973-08-01

    Applicant: LAPORTE INDUSTRIES LTD

    Inventor： JENKINS V ,  DOHERTY D

    IPC: C08G18/10 ,  C08G18/42 ,  C08G22/48

    CPC classification number: C08G18/4277 ,  C08G18/10 ,  C08G2101/0008 ,  C08G2101/0066 ,  C08G18/664

    Abstract: Flexible high density polyurethane foam is produced by a quasiprepolymerisation technique in which a ''''prepolymer composition'''' which is obtained from a diisocyanate and a copolymer of an Epsilon -caprolactone, an epoxide and a monomeric diol chain initiator; is reacted with a ''''reactant mixture'''' which is a mixture of the copolymer and monomeric diol. The prepolymer composition and reactant mixture are stable, easily handled liquids which intermix easily and react quickly with each other, the presence of the diol in the reactant mixture facilitating mixing with the prepolymer composition to ensure good foam formation.

    Abstract translation: 通过准预聚合技术制备柔性高密度聚氨酯泡沫，其中从二异氰酸酯获得的“预聚物组合物”和ε-己内酯，环氧化物和单体二醇链引发剂的共聚物; 与作为共聚物和单体二醇的混合物的“反应物混合物”反应。 预聚物组合物和反应物混合物是易于处理的液体，其易于混合并且彼此快速反应，二醇在反应混合物中的存在便于与预聚物组合物混合以确保良好的泡沫形成。

    Rigid fire retardant polyurethane foam
    2.
    发明授权
    Rigid fire retardant polyurethane foam 失效
    刚性阻燃聚氨酯泡沫

    公开(公告)号：US3783133A

    公开(公告)日：1974-01-01

    申请号：US3783133D

    申请日：1971-10-15

    Applicant: JEFFERSON CHEM CO INC

    Inventor： SPERANZA G

    IPC: C08G18/10 ,  C08G18/38 ,  C08G18/48 ,  C08G18/50 ,  C08G22/48

    CPC classification number: C08G18/5084 ,  C08G18/10 ,  C08G18/3885 ,  C08G18/4883 ,  C08G2101/0025 ,  C08G2101/005 ,  C08G18/48

    Abstract: A RIGID FIRE RETARDANT POLYURETHANE FOAM HAVING GOOD DIMENSIONAL STABILITY, MORE THAN 90% CLOSED CELLS AND A K FACTOR LESS THAN 0.13 IS PRODUCED BY REACTING WITH A POLYOL BLEND CONTAINING A SUCROSE POLYOL WHICH IS THE REACTION PRODUCT OF 8 TO 12 MOLS OF PROPYLENE OXIDE PER MOL OF SUCROSE OR A SUCROSE POLYOL WHICH IS THE REACTION PRODUCT OF 9 TO 12 MOLS OF PROPYLENE OXIDE PERMOL OD SUCROSE AN ISOCYANATO TERMINATED PREPOLYMER FORMED BY REACTING AN EXCESS OF A POLYMETHYLENE POLYPHENYL ISOCYANATE WITH A PHOSPHOURS-CONTANING POLYOL IN THE PRESENCE OF A BLOWING AGENT, SURFACTANT AND A CATALYST OF URETHANE FORMATION. THE RIGID FINE RETARDANT POLYURETHANE FOAMS THUS FORMED ARE PARTICULARY USEFUL FOR INSULATION PURPOSES.

    Quasc-prepolymerization technique for preparation of polyurethane foams
    4.
    发明授权
    Quasc-prepolymerization technique for preparation of polyurethane foams 失效
    用于制备聚氨酯泡沫塑料的准分解预处理技术

    公开(公告)号：US3853795A

    公开(公告)日：1974-12-10

    申请号：US37883473

    申请日：1973-07-13

    Applicant: LAPORTE INDUSTRIES LTD

    Inventor： JENKINS V ,  LEE S

    IPC: C08G18/10 ,  C08G18/16 ,  C08G18/42 ,  C08G22/48

    CPC classification number: C08G18/4277 ,  C08G18/10 ,  C08G18/165 ,  C08G2101/0066 ,  C08G2101/0083 ,  C08G18/3206 ,  C08G18/664

    Abstract: High density polyurethane foam is prepared by a quasiprepolymer technique. A ''''prepolymer composition'''' is formed by polymerising an organic polyol with a polyisocyanate and then adding a relatively large quantity of organo-tin catalyst (0.02 to 1% by weight) thereto, and is then reacted with a ''''reactant mixture'''' comprising an organic polyol, a polylfunctional cross linking agent, a blowing agent and 0.01 to 4% by weight of tertiary amine catalyst. By distributing the two catalysts between the prepolymer compositions and the reactant mixture in this manner, the two liquid compositions are stable, but, when mixed, the catalyst acts synergistically to give extremely low demould times for the foam.

    Abstract translation: 高密度聚氨酯泡沫通过准共聚技术制备。 通过将有机多元醇与多异氰酸酯聚合，然后向其中加入相对大量的有机锡催化剂（0.02-1重量％），然后与包含有机锡的“反应物混合物”反应形成“预聚物组合物” 多元醇，多官能交联剂，发泡剂和0.01〜4重量％的叔胺催化剂。 通过以这种方式将两种催化剂分散在预聚物组合物和反应物混合物之间，两种液体组合物是稳定的，但是当混合时，催化剂起协同作用，使泡沫体的脱模时间极低。

    Urethane foams cured by atmospheric moisture
    9.
    发明授权
    Urethane foams cured by atmospheric moisture 失效
    由大气湿度固化的尿素

    公开(公告)号：US3830760A

    公开(公告)日：1974-08-20

    申请号：US7162570

    申请日：1970-09-11

    Applicant: ICI LTD

    Inventor： BENGTSON O

    IPC: C08J9/02 ,  C08J9/14 ,  C08G22/48

    CPC classification number: C08J9/147

    Abstract: PROCESS FOR PREPARING A FOAMABLE COMPOSITION BY FORMING AMIXTTURE OF A POLYMER OF POLYMER PRECURSOR, CURABLE ON CONTACT WITH THE ATMOSPHERE, AND A POLYMER-SOLUBLE INERT BLOWING AGENT UNDER SUCH A PRESSURE THAT THE BLOWING AGENT IS SUBSTANTIALLY IN CONDENSED FORM, THE MIXTURE BEING CAPABLE, UPON RELEASE OF THE PRESSURE, OF EXPANDING DUE TO VAPORISATION OF THE BLOWING AGENT TO FORM A FOAM WHICH THEN CURVES WITHOUT SUBSTANTIAL CHANGE IN VOLUME.

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