Aminopolyol stabilizers
    1.
    发明授权
    Aminopolyol stabilizers 失效
    氨基多酚稳定剂

    公开(公告)号:US4906723A

    公开(公告)日:1990-03-06

    申请号:US276747

    申请日:1988-11-28

    摘要: A method is described for producing dispersions of polyurea and the like in polyols of increased stability by polymerizing an amine and an isocyanate in the presence of an aminoalcohol, typically an aminopolyol, having the following formula: ##STR1## wherein A and A' are individually connective atoms which may be same or different, and are selected from the group consisting of carbon and oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is a member selected from the group consisting of nitrogen, NR, R being alkyl or aryl, or CR', R' being hydrogen, alkyl or aryl; D is a member selected from the group consisting of ##STR2## wherein a has a value of one to four; X is a member selected from the group consisting of OH, NH.sub.2 or H; X' is a member selected from the group consisting of H or NHR' where R' is hydrogen, alkyl or aryl; n and d are individually integers of 0 to 10 and the sum of n and d is at least one and does not exceed 10; s is either 0 or 1; y is an integer of 0 to 4; and m is an integer of at least about 16, with the proviso that when B is nitrogen and either n or d is zero, X and X' are not both H. The dispersions are useful for the production of polyurethane foams.

    Method for producing polyurethanes
    2.
    发明授权
    Method for producing polyurethanes 失效
    生产聚氨酯的方法

    公开(公告)号:US4727094A

    公开(公告)日:1988-02-23

    申请号:US937419

    申请日:1986-12-03

    摘要: Novel polyols, useful in, for example, reaction injection molding, high resiliency foams and the preparation of polymer/polyols, characterized by the following formula: ##STR1## wherein A and A', which may be the same or different, are connective atoms--carbon, oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is nitrogen (N) or CR, R being hydrogen, alkyl, aryl or the like; Q is 0, CH.sub.2 O, C.sub.2 H.sub.4 O, C.sub.3 H.sub.6 O, or C.sub.4 H.sub.8 O; D is an oxyalkylene or ##STR2## X and X', which may be the same or different, are OH, NH.sub.2 or H; Z is OH; n and d are integers of 0 to 10 and the sum of n and d does not exceed 10; s is 0 or 1, and m is an integer of at least about 16, with the proviso that when B is N and either n or d is zero, X and X' are other than H, provide processing advantages and are highly compatible with low molecular weight extenders such as ethylene glycol.

    摘要翻译: 用于例如反应注射成型,高弹性泡沫和聚合物/多元醇制备的新型多元醇,其特征在于下列结构式:其中A和A'可以相同或不同,为连接原子 碳,氧或其与满足化合价的氢原子等的组合; B是氮(N)或CR,R是氢,烷基,芳基等; Q为0,CH 2 O,C 2 H 4 O,C 3 H 6 O或C 4 H 8 O; D是氧化烯或者可以是相同或不同的OH,NH 2或H的X和X'; Z是OH; n和d为0〜10的整数,n和d之和不超过10; s为0或1,m为至少约16的整数,条件是当B为N且n或d为0时,X和X'不是H,提供加工优点,并且与 低分子量增量剂如乙二醇。

    Novel polymer/polyols and uses thereof
    3.
    发明授权
    Novel polymer/polyols and uses thereof 失效
    新型聚合物/多元醇及其用途

    公开(公告)号:US4659772A

    公开(公告)日:1987-04-21

    申请号:US808260

    申请日:1985-12-12

    摘要: Novel polyols, useful in, for example, reaction injection molding, high resiliency foams and the preparation of polymer/polyols, characterized by the following formula: ##STR1## wherein A and A', which may be the same or different, are connective atoms--carbon, oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is nitrogen (N) or CR, R being hydrogen, alkyl, aryl or the like; Q is 0, CH.sub.2 O, C.sub.2 H.sub.4 O, C.sub.3 H.sub.6 O, or C.sub.4 H.sub.8 O; D is an oxyalkylene or ##STR2## X and X', which may be the same or different, are OH, NH.sub.2 or H; Z is OH; n and d are integers of 0 to 10 and the sum of n and d does not exceed 10; s is 0 or 1, and m is an integer of at least about 16, with the proviso that when B is N and either n or d is zero, X and X' are other than H, provide processing advantages and are highly compatible with low molecular weight extenders such as ethylene glycol.

    摘要翻译: 用于例如反应注射成型,高弹性泡沫和聚合物/多元醇制备的新型多元醇,其特征在于下列结构式:其中A和A'可以相同或不同,为连接原子 碳,氧或其与满足化合价的氢原子等的组合; B是氮(N)或CR,R是氢,烷基,芳基等; Q为0,CH 2 O,C 2 H 4 O,C 3 H 6 O或C 4 H 8 O; D是氧化烯或者可以是相同或不同的OH,NH 2或H的X和X'; Z是OH; n和d为0〜10的整数,n和d之和不超过10; s为0或1,m为至少约16的整数,条件是当B为N且n或d为0时,X和X'不是H,提供加工优点,并且与 低分子量增量剂如乙二醇。

    Connected branched polyols and polyurethanes based thereon
    4.
    发明授权
    Connected branched polyols and polyurethanes based thereon 失效
    基于其的连接的支化多元醇和聚氨酯

    公开(公告)号:US4594366A

    公开(公告)日:1986-06-10

    申请号:US679611

    申请日:1984-12-07

    CPC分类号: C08G18/636

    摘要: Connected branch polyols comprising a core segment having a defined molecular weight, one core branch unit directly connected to each end of the core segment, at least one additional branch unit at each end connected directly or indirectly to each core branch unit, and linear polymer segments connected to the branch units are utilized in preparing a wide spectrum of polymer/polyols characterized by superior dispersion stability and viscosity to solids content relationship, the polymer/polyols in turn being employed to prepare polyurethanes having superior performance in flame retardancy tests.

    摘要翻译: 连接的支链多元醇包含具有确定的分子量的核心链段,直接连接到核心链段的每个末端的一个核心分支单元,每个直接或间接连接到每个核心分支单元的至少一个另外的分支单元,以及直链聚合物链段 连接到分支单元用于制备广泛的聚合物/多元醇,其特征在于优异的分散稳定性和粘度与固体含量关系,聚合物/多元醇又用于制备在阻燃性试验中具有优异性能的聚氨酯。

    Novel polyols and uses thereof
    5.
    发明授权
    Novel polyols and uses thereof 失效
    新型多元醇及其用途

    公开(公告)号:US4581470A

    公开(公告)日:1986-04-08

    申请号:US536315

    申请日:1983-09-27

    摘要: Novel polyols, useful in, for example, reaction injection molding, high resiliency foams and the preparation of polymer/polyols, characterized by the following formula: ##STR1## wherein A and A', which may be the same or different, are conductive atoms - carbon, oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is nitrogen (N) or CR, R being hydrogen, alkyl, aryl or the like; Q is 0, CH.sub.2 O, C.sub.2 H.sub.4 O, C.sub.3 H.sub.6 O, or C.sub.4 H.sub.8 O; D is an oxyalkylene or ##STR2## X and X', which may be the same or different, are OH, NH.sub.2 or H; Z is OH; n and d are integers of 0 to 10 and the sum of n and d does not exceed 10; s is 0 or 1, and m is an integer of at least about 16, with the proviso that when B is N and either n or d is zero, X and X' are other than H, provide processing advantages and are highly compatible with low molecular weight extenders such as ethylene glycol.

    摘要翻译: 用于例如反应注射成型,高弹性泡沫和聚合物/多元醇的制备的新型多元醇,其特征在于下列结构式:其中A和A'可以相同或不同,为导电原子 - 碳,氧或其与氢原子等的化合物满足化合价; B是氮(N)或CR,R是氢,烷基,芳基等; Q为0,CH 2 O,C 2 H 4 O,C 3 H 6 O或C 4 H 8 O; D是氧化烯或者可以是相同或不同的OH,NH 2或H的X和X'; Z是OH; n和d为0〜10的整数,n和d之和不超过10; s为0或1,m为至少约16的整数,条件是当B为N且n或d为0时,X和X'不是H,提供加工优点,并且与 低分子量增量剂如乙二醇。

    Sinterable semi-crystalline powder and near-fully dense article formed
therewith
    6.
    发明授权
    Sinterable semi-crystalline powder and near-fully dense article formed therewith 失效
    与其形成的可烧结的半结晶粉末和近乎致密的物品

    公开(公告)号:US5342919A

    公开(公告)日:1994-08-30

    申请号:US980004

    申请日:1992-11-23

    摘要: A laser-sinterable powder product has been prepared having unique properties which allow the powder to be sintered in a selective laser sintering (SLS) machine to form a sintered part which is near-fully dense. For most purposes, the sintered part is indistinguishable from another part having the same dimensions made by isotropically molding the powder. In addition to being freely flowable at a temperature near its softening temperature, the powder has a two-tier distribution in which substantially no primary particles has an average diameter greater than 180.mu.m, provided further that the number average ratio of particles smaller than 53.mu.m is greater than 80%, the remaining larger particles being in the size range from 53.mu.m to 180.mu.m. When the powder is a semicrystalline synthetic resin having a number average molecular weight in the range from about 30,000 to 500,000; a molecular weight distribution M.sub.w /M.sub.n in the range from 1 to 5; and, provides a window of sinterability in the temperature range from near the powder's softening temperature T.sub.s to its caking temperature T.sub.c, it is sintered layer-upon layer to form a near-fully dense part of arbitrary shape.

    摘要翻译: 已经制备了具有独特性质的激光可烧结粉末产品,其允许粉末在选择性激光烧结(SLS)机器中烧结以形成接近完全致密的烧结部分。 对于大多数目的,烧结部分与通过各向同性地成型粉末制成的具有相同尺寸的另一部件是不可区分的。 除了在接近其软化温度的温度下可自由流动之外,粉末具有两层分布,其中基本上没有一次颗粒的平均直径大于180μm,条件是颗粒的数量比小于53 亩大于80%,其余较大颗粒的尺寸范围为53μm至180μm。 当粉末是数均分子量在约30,000至500,000范围内的半结晶合成树脂时; 分子量分布Mw / Mn在1至5的范围内; 并且在从接近粉末的软化温度Ts到其结块温度Tc的温度范围内提供可烧结窗口,其是层状烧结以形成任意形状的近乎完全致密的部分。

    Hydrolysis of alkylene carbonates to aklylene glycols
    9.
    发明授权
    Hydrolysis of alkylene carbonates to aklylene glycols 失效
    将碳酸亚烷基酯水解成亚磷酰二醇

    公开(公告)号:US4524224A

    公开(公告)日:1985-06-18

    申请号:US495462

    申请日:1983-05-20

    CPC分类号: C07C29/095 Y02P20/52

    摘要: This invention is concerned with producing glycols of the formulaHOCHRCH.sub.2 OHfrom hydrolysis, in a homogeneous liquid phase mixture, of an alkylene carbonate of the formula ##STR1## in which R is either hydrogen or methyl. This is accomplished by using an amount of water in excess of stoichiometry and using potassium carbonate as the preferred catalyst. The reaction is effected under a carbon dioxide pressure of at least 80 psig and the reaction temperature is desirably between about 85.degree. C. and 500.degree. C.

    摘要翻译: 本发明涉及通过水解在均相液相混合物中制备式HOCHRCH 2 OH的二醇,其中R为氢或甲基的式“IMAGE”的亚烷基碳酸酯。 这通过使用一定量的超过化学计量的水并使用碳酸钾作为优选的催化剂来实现。 反应在至少80psig的二氧化碳压力下进行,反应温度优选在约85℃至500℃之间。