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    • 22. 发明授权
    • Polyol blend and polyisocyanurate foam produced therefrom
    • 由此产生的多元醇共混物和聚异氰脲酸酯泡沫
    • US4544679A
    • 1985-10-01
    • US703849
    • 1985-02-21
    • Richard B. TideswellNeil H. NodelmanBarry A. Phillips
    • Richard B. TideswellNeil H. NodelmanBarry A. Phillips
    • C08G18/00C08G18/02C08G18/06C08G18/09C08G18/28C08G18/32C08G18/40C08G18/42C08G18/66C08G18/14C08G18/30C08G18/48C08G18/79
    • C08G18/3221C08G18/092C08G18/283C08G18/4018C08G18/4247C08G18/6644C08G2101/00C08G2101/0025C08G2101/005C08G2105/02C08G2170/60Y10S521/902Y10T428/249991Y10T428/31547
    • The present invention is directed to a polyol blend comprising:(a) from about 30 to about 90 percent by weight of a polyester diol having an OH number of from about 50 to about 500 and having the structure: ##STR1## wherein each R may be the same or different and represents a radical of the formula: ##STR2## where R" represents H or CH.sub.3 with the proviso that both R"s cannot be CH.sub.3, and y represents a number of from 1 to 5,wherein R' represents an aromatic radical having from 6 to 12 carbon atoms, and wherein x represents a number of from 0 to 5,(b) from about 2 to about 40 percent by weight of an organic compound containing from 3 to 8 hydroxyl groups and being selected from the group consisting of(i) compounds having OH numbers of from about 250 to about 1830 and being free of carboxylic acid ester groups,(ii) compounds having OH numbers of from about 150 to about 1000 and containing at least one carboxylic acid ester group, and(iii) mixtures thereof,(c) from about 5 to about 30 percent by weight of a condensation product formed from 1 mole of a phenol and from 4 to 15 moles of ethylene oxide, and(d) from 0 to about 40 percent by weight of at least one diol of the structure: ##STR3## where R" and y are as defined above, and to an isocyanurate foam prepared therefrom.
    • 本发明涉及多元醇共混物,其包含:(a)约30至约90重量%的OH数为约50至约500的聚酯二醇,并具有以下结构:其中每个R可以 相同或不同,表示下式的基团:其中R“表示H或CH 3,条件是两个R'不能为CH3,y表示1至5的数,其中R “表示具有6至12个碳原子的芳族基团,其中x表示0至5的数,(b)约2至约40重量%的含有3至8个羟基的有机化合物,并且为 选自(i)具有约250至约1830的OH数的化合物和不含羧酸酯基的化合物,(ii)OH值为约150至约1000的化合物,并含有至少一种羧酸 酯基,和(iii)它们的混合物,(c)约5至约3 0重量%由1摩尔酚和4至15摩尔环氧乙烷形成的缩合产物,和(d)0至约40重量%的至少一种以下结构的二醇:其中 R“和y如上所定义,和由其制备的异氰脲酸酯泡沫。
    • 28. 发明授权
    • Process for preparing closed-cell water-blown rigid polyurethane foams having improved mechanical properties
    • 制备具有改进的机械性能的闭孔水喷硬质聚氨酯泡沫体的方法
    • US07750058B2
    • 2010-07-06
    • US12241146
    • 2008-09-30
    • Karl W. HaiderNeil H. NodelmanJohn P. ForsytheBrian R. Suddaby
    • Karl W. HaiderNeil H. NodelmanJohn P. ForsytheBrian R. Suddaby
    • C08G18/28
    • C08G18/409C08G18/10C08G18/4072C08G2101/0025C08G2101/0058C08G2101/0083Y10T428/31573Y10T428/31583Y10T428/31587Y10T428/31605C08G18/40
    • The present invention is directed to a process for preparing water-blown rigid polyurethane foams having at least an 80% closed-cell content which involves reacting a) at least one polyol mixture which is composed of (i) at least one polymer polyol; (ii) at least one polyol having a hydroxyl value within the range of from about 200 to about 800; and (iii) optionally, at least one polyol having a hydroxyl value within the range of from about 25 to about 115; with b) at least one polymeric isocyanate and/or a prepolymer thereof; in the presence of c) optionally, at least one catalyst; d) water; and e) optionally, at least one additive or auxiliary agent. The present invention is also directed to the closed-cell water blown rigid polyurethane foams produced by the process of the present invention. The invention is further directed to a polyurethane-foam forming mixture which is used to produce the water-blown rigid polyurethane foams of the present invention. Foams produced according to the present invention have reduced friability and acceptable adhesion to substrates as well as acceptable compressive strength.
    • 本发明涉及一种制备具有至少80%闭孔含量的水喷硬质聚氨酯泡沫体的方法,该方法包括使a)至少一种多元醇混合物,其由(i)至少一种聚合物多元醇组成; (ii)至少一种羟值在约200至约800范围内的多元醇; 和(iii)任选地,至少一种羟值在约25至约115范围内的多元醇; 其中b)至少一种聚合异氰酸酯和/或其预聚物; 在c)任选的情况下,至少一种催化剂; d)水; 和e)任选的至少一种添加剂或助剂。 本发明还涉及通过本发明的方法生产的闭孔水喷硬质聚氨酯泡沫体。 本发明还涉及用于生产本发明的水喷硬质聚氨酯泡沫的聚氨酯泡沫形成混合物。 根据本发明生产的泡沫具有降低的脆性和对基材的可接受的粘合性以及可接受的抗压强度。