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    • 1. 发明授权
    • Process for the production of elastic, optionally cellular, polyurethane
ureas
    • 用于生产弹性,任选细胞的聚氨酯脲的方法
    • US4294934A
    • 1981-10-13
    • US164752
    • 1980-06-30
    • Gerhard GroglerJurgen SchwindtOtto GansterHans-Joachim MeinersHans-Dieter Ruprecht
    • Gerhard GroglerJurgen SchwindtOtto GansterHans-Joachim MeinersHans-Dieter Ruprecht
    • C08G18/00C08G18/10C08G18/72C08G18/76C08G18/18C08G18/22
    • C08G18/7671C08G18/10C08G2101/0008C08G2350/00C08G2380/00C08G2410/00Y10S528/906
    • The instant invention is directed to a process for the production of polyurethane urea elastomers having a gross density of more than 200 kg/m.sup.3 comprising: casting a reaction mixture of(A) an isocyanate prepolymer produced from(a) 1 mole of a compound containing at least 2 Zerewitinoff-active hydrogen atoms and having a molecular weight of from 400 to 10,000 and(b) 2 to 10 moles of diisocyanatodiphenylmethane,(B) an aromatic diamine, and(C) 0 to 50 mole percent, based on component (B), of a polyol containing primary hydroxyl groups and having a molecular weight of from 62 to 6000, the equivalent ratio between component (A) and components (B) + (C) amounting to between 0.9:1 and 1.3:1,into a mold, hardening the reaction mixture in the mold and subsequently removing it from the mold, the improvement wherein said isocyanate prepolymer (A) has been produced using an isomer mixture comprising:from 15 to 80 mole percent of 2,4'-diisocyanatodiphenylmethane,from 20 to 85 mole percent of 4,4'-diisocyanatodiphenylmethane, andfrom 0 to 20 mole percent of 2,2'-diisocyanatodiphenylmethane.
    • 本发明涉及生产总密度大于200kg / m 3的聚氨酯脲弹性体的方法,包括:浇铸(A)异氰酸酯预聚物的反应混合物,该异氰酸酯预聚物由(a)1摩尔含有 至少2个Zerewitinoff活性氢原子,分子量为400至10,000,和(b)2至10摩尔二异氰酸二苯基甲烷,(B)芳族二胺和(C)0至50摩尔%,基于组分( B),含有伯羟基并且分子量为62至6000的多元醇,组分(A)和组分(B)+(C)之间的当量比为0.9:1至1.3:1,转化为 模具,使模具中的反应混合物硬化,随后将其从模具中除去,改进之处在于所述异氰酸酯预聚物(A)已经使用异构体混合物制备,所述异构体混合物包含:15至80摩尔%的2,4'-二异氰酸根合二苯基甲烷, 20至85摩尔%o f 4,4'-二异氰酸二苯基甲烷和0至20摩尔%的2,2'-二异氰酸二苯基甲烷。
    • 6. 发明授权
    • Process for cold-hardening polyurethane foams using sulfonamide
emulsifiers
    • 使用磺酰胺乳化剂的冷硬化聚氨酯泡沫的方法
    • US4101468A
    • 1978-07-18
    • US767608
    • 1977-02-10
    • Hermann PerreyHans-Joachim MeinersJurgen Ick
    • Hermann PerreyHans-Joachim MeinersJurgen Ick
    • B01F17/26C08J9/00C08G18/14C07C143/72
    • C08J9/0061C08J9/0033C08J2375/08C08J2471/00Y10S521/904
    • The invention relates to a process for preparing cold-hardening foams containing urethane groups using as an emulsifier, sulphonamide compounds of the formula: ##STR1## wherein R represents an alkyl, chloroalkyl, cycloalkyl radical having from 8 to 30 carbon atoms, or an alkaryl radical having from 10 to 30 carbon atoms,R.sup.1 and R.sup.2, which may be the same or different, each represent a hydrogen atom, a chloromethyl, methyl, ethyl or phenyl radical,m is an integer of from 0 to 50,R.sup.3 represents a hydrogen atom, an alkyl, aralkyl, alkaryl, aryl radical or a --(CHR.sup.1 -CHR.sup.2 -O-).sub.m R.sup.4 - group andR.sup.4 represents a hydrogen atom, an alkyl, aralkyl, acyl, carbamoyl or cyanalkyl radical having from 1 to 20 carbon atoms.The use of these additions results in an increase in compression hardness without detrimental effects on other foam properties.
    • 本发明涉及一种使用乳化剂制备含有氨基甲酸酯基团的冷硬化泡沫的方法,下式的磺酰胺化合物:其中R表示烷基,氯代烷基,具有8至30个碳原子的环烷基或烷芳基 具有10至30个碳原子的基团,R 1和R 2可以相同或不同,各自表示氢原子,氯甲基,甲基,乙基或苯基,M为0至50的整数,R 3表示 氢原子,烷基,芳烷基,烷芳基,芳基或 - (CHR 1 -CHR 2 -O-)m R 4 - 基,R 4表示氢原子,具有1至20个碳的烷基,芳烷基,酰基,氨基甲酰基或氰基烷基 原子
    • 7. 发明授权
    • Process for the production of polyurethane foams
    • 生产聚氨酯泡沫的方法
    • US4022720A
    • 1977-05-10
    • US579522
    • 1975-05-21
    • Johannes BlahakHans-Joachim Meiners
    • Johannes BlahakHans-Joachim Meiners
    • C07C271/20C08G18/18C07C97/02
    • C08G18/1841C07C271/20
    • The present invention relates to a process for the production of polyurethane foams by reacting1. organic compounds with at least two hydrogen atoms capable of reacting with isocyanates and having molecular weights in the range from 400 to 10,000,2. polyisocyanates,3. water and/or organic blowing agents in the presence of catalysts containing tertiary nitrogen and, optionally, other additives, the improvement wherein the catalysts used are polyacyl compounds corresponding to the general formula: ##STR1## wherein A represents a C.sub.1 -C.sub.6 alkylene group, preferably a C.sub.2 or C.sub.3 alkylene group;R represents a C.sub.1 -C.sub.5 alkyl group, preferably methyl or ethyl;X represents an acyl group, preferably ##STR2##
    • 本发明涉及一种生产聚氨酯泡沫的方法,该方法是通过使有机化合物与至少两个可与异氰酸酯反应并具有400至10,000的范围内的分子量的氢原子反应而生成的。2.聚异氰酸酯,3.水和 /或有机发泡剂在含有苛性氮的催化剂存在下,以及任选的其它添加剂,所使用的催化剂的改进是与通用公式相关的聚酰胺化合物:其中A表示C1-C6亚烷基,优选为 C2或C3亚烷基; R表示C1-C5烷基,优选甲基或乙基; X表示酰基,优选
    • 8. 发明授权
    • Process for the preparation of polyurea elastomers containing urethane
groups
    • 制备含氨基甲酸酯基团的聚脲弹性体的方法
    • US5262448A
    • 1993-11-16
    • US515885
    • 1990-04-27
    • Andreas RuckesHans-Joachim MeinersHeinrich BodenManfred Schmidt
    • Andreas RuckesHans-Joachim MeinersHeinrich BodenManfred Schmidt
    • C08G18/66C08G18/10C08G18/50C08G18/65C08G18/76
    • C08G18/5048C08G18/10C08G18/5024C08G2101/0008C08G2101/0033C08G2101/0066C08G2120/00
    • The present invention relates to a process for the production of an optionally cellular elastomeric molded article having a compact surface and based on a polyurea elastomer containing urethane groups which is the reaction product ofa) a polyisocyanate component based on a polyisocyanate of the diphenylmethane series,b) a polyol component based on a polyether polyol, a polyester polyol or mixtures thereof andc) a polyamine component containing1) 50 to 95% by weight, based on the weight of component c), of at least one sterically hindered aromatic diamine and2) 5 to 50% by weight, based on the weight of component c), of at least one compound which has a molecular weight of about 1,000 to 12,000,by reacting component a) with at least 90% by weight of component b) at an NCO/OH equivalent ratio of at least 4:1 to form an NCO semi-prepolymer and subsequently reacting the NCO semi-prepolymer with component c) and the remainder of component b) by the reaction injection molding process to form the polyurea elastomer containing urethane groups, component c) being present in an amount sufficient to provide an isocyanate index, based on the reactive groups of components a), b) and c), of 70 to 130.
    • 本发明涉及一种制备具有紧凑表面并且基于含有氨基甲酸酯基团的聚脲弹性体的任选多孔弹性体模塑制品的方法,该聚脲弹性体是a)基于二苯基甲烷系列的多异氰酸酯的多异氰酸酯组分的反应产物, b)基于聚醚多元醇,聚酯多元醇或其混合物的多元醇组分和c)多胺组分,其含有1)基于组分c)的重量计50至95重量%的至少一种空间位阻芳族二胺 和2)基于组分c)重量的5-50重量%的至少一种分子量为约1,000至12,000的化合物,通过使组分a)与至少90重量%的组分b ),以至少4:1的NCO / OH当量比形成NCO半预聚物,随后通过反应注射成型工艺t将NCO半预聚物与组分c)和组分b)的剩余部分反应 o形成含有氨基甲酸酯基团的聚脲弹性体,组分c)以足以提供异氰酸酯指数的量存在,基于组分a),b)和c)的反应性基团为70至130。