Rigid, non-cellular polyurethane modified with reaction product of an
isocyanate and an alcohol
    3.
    发明授权
    Rigid, non-cellular polyurethane modified with reaction product of an isocyanate and an alcohol 失效
    用异氰酸酯和醇的反应产物改性的刚性,非细胞聚氨酯

    公开(公告)号:US4334052A

    公开(公告)日:1982-06-08

    申请号:US243537

    申请日:1981-03-13

    摘要: Rigid, solid, non-cellular, urethane polymer compositions can be prepared which are the reaction product of at least one polyhydric alcohol with at least one organic polyisocyanate in the presence of a low molecular weight urethane modifier adduct which is the reaction product prepared, for instance, by reacting (1) at least one polyisocyanate and at least one monohydric alcohol or (2) at least one monofunctional isocyanate with at least one monohydric or polyhydric alcohol. Said adduct can also consist of mixtures of (1) and (2). Such polymers when prepared in the presence of any catalyst for urethane formation which is a liquid or solid at ambient temperature, set quickly to solid, rigid polymers having a density of at least one gram per cubic centimeter. They can be demolded after combining the materials, without the addition of heat from an external source, within a period of less than one minute to about 15 minutes. By proper selection of the urethane modifier adduct, flame-retardant polymers can be prepared.

    摘要翻译: 可以制备刚性,固体,非细胞的聚氨酯聚合物组合物,其是在制备反应产物的低分子量氨基甲酸酯改性剂加合物存在下,至少一种多元醇与至少一种有机多异氰酸酯的反应产物,其用于 例如,通过使(1)至少一种多异氰酸酯和至少一种一元醇或(2)至少一种单官能异氰酸酯与至少一种一元醇或多元醇反应。 所述加合物也可以由(1)和(2)的混合物组成。 当在任何催化剂存在下制备聚氨酯形成时,这种聚合物在环境温度下是液体或固体,快速固化成具有至少1克/立方厘米密度的固体刚性聚合物。 在不少于1分钟至15分钟的时间内,不需要外部来源加热就能将材料组合起来。 通过适当选择氨基甲酸酯改性剂加合物,可以制备阻燃聚合物。

    Polyisocyanates blocked with polyhaloalcohols
    4.
    发明授权
    Polyisocyanates blocked with polyhaloalcohols 失效
    聚异氰酸酯与聚乙醇封闭

    公开(公告)号:US3746689A

    公开(公告)日:1973-07-17

    申请号:US3746689D

    申请日:1972-02-11

    发明人: LAKSHMI T CENKER M

    CPC分类号: C08G18/8087

    摘要: BLOCKED ISOCYANATES ARE PREPARED BY REACTNG AN ORGANIC ISOCYANATE WITH A HALOALKANOL OF 1 TO 6 CARBON ATOMS IN THE PRESENCE OF A BASIC CATALYST AND AT AMBIENT OR AN ELEVATED TEMPERATURE. SUBSEQUENT UNBLOCKING OF THE ISOCYANATE IN THE PRESENCE OF AND WITHOUT DAMAGE TO THE POLYOL REACTANT IS OBTAINED BY HEATING, TYPICALLY AT ABOUT 100* TO ABOUT 180*C. COMPARABLE AFTER CURE PHYSICAL PROPERTIES ARE OBTAINED ON POLYURETHANES PREPARED WITH A BLOCKED ISOCYANATE OR ITS NONBLOCKED COUNTERPART.

    Coating compositions of an acrylic fluorocarbon polymer and a
fluorinated polyisocyanate
    9.
    发明授权
    Coating compositions of an acrylic fluorocarbon polymer and a fluorinated polyisocyanate 失效
    丙烯酸氟碳聚合物和氟化聚异氰酸酯的涂料组合物

    公开(公告)号:US5597874A

    公开(公告)日:1997-01-28

    申请号:US543721

    申请日:1995-10-16

    摘要: A coating composition containing about 45-80% by weight of a binder and 20-55% by weight of an organic liquid; wherein the binder contains(A) about 40-90% by weight, based on the weight of the binder, of an acrylic polymer containing polymerized hydroxyl containing monomers of the following group of hydroxy alkyl acrylate or methacrylates having 1-4 carbon atoms in the alkyl group, and polymerized alkyl acrylates and methacrylates having 1-18 carbon atoms in the alkyl groups, or styrene or any mixtures of the above and 0.1-5.0% by weight, based on the weight of the acrylic polymer, of polymerized fluoroalkyl containing monomer represented by the formula ##STR1## where R is hydrogen or an alkyl group having 1-2 carbon atoms, n is an integer of 1-11 and R.sub.f is a fluoroalkyl containing group having at least 4 carbon atoms and(B) about 10-60% by weight, based on the weight of the binder, of a fluorinated organic polyisocyanate crosslinking agent.

    摘要翻译: 包含约45-80重量%的粘合剂和20-55重量%的有机液体的涂料组合物; 其中所述粘合剂含有(A)约40-90重量%,基于粘合剂的重量,含有聚合的羟基的丙烯酸类聚合物的丙烯酸类聚合物,所述聚合的含羟基的单体在下述基团中具有1-4个碳原子的丙烯酸羟烷基酯或甲基丙烯酸酯 烷基和在烷基中具有1-18个碳原子的聚合的丙烯酸烷基酯和甲基丙烯酸烷基酯,或苯乙烯或上述的任何混合物和基于丙烯酸类聚合物的重量0.1-5.0重量%的聚合的含氟烷基的单体 其中R为氢或具有1-2个碳原子的烷基,n为1-11的整数,Rf为含有至少4个碳原子的含氟烷基基团,(B)为约10- 60重量%,基于粘合剂的重量,含氟有机多异氰酸酯交联剂。