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    Aromatic diamino carbonic acid esters
    1.
    发明授权
    Aromatic diamino carbonic acid esters 失效
    芳香二氨基碳酸酯

    公开(公告)号：US3929863A

    公开(公告)日：1975-12-30

    申请号：US17138171

    申请日：1971-08-12

    Applicant: BAYER AG

    Inventor： BLAHAK JOHANNES ,  MULLER ERWIN ,  KLEIMANN HELMUT

    IPC: C08G18/00 ,  C07C67/00 ,  C07C227/00 ,  C07C227/22 ,  C07C229/56 ,  C07C327/26 ,  C08G18/10 ,  C08G18/32 ,  C08G18/38 ,  C08G18/65 ,  C07C101/48

    CPC classification number: C08G18/3868 ,  C08G18/10 ,  C08G18/3243 ,  C08G18/3855

    Abstract: Novel aromatic diamines having the general formula

    WHEREIN N IS AN INTEGER OF FROM 2 TO 8, X is sulfur or oxygen, and R is an n-valent hydrocarbon radical which may be interrupted by O or S atoms and which is obtained by removing OH or SH groups from a polyol or polythiol having a molecular weight of less than 600, are prepared by reacting a compound having the formula (HX)nR where X, n and R are as defined above with about nequivalents of an isatoic acid anhydride in the presence of a strong base. The aromatic diamines of the invention are particularly useful as the active hydrogen containing component for reaction with polyisocyanates in the preparation of synthetic resins by the isocyanate-polyaddition process.

    Abstract translation: 新型芳族二胺，具有通式为：其中2为8的整数，X为硫或氧，R为可被O或S原子间隔的n价烃基，其通过除去OH或 通过使具有式（HX）n R的化合物，其中X，n和R如上所定义的化合物与约n当量的丙酮酸酐反应制备分子量小于600的多元醇或多硫醇的SH基团 存在强大的基础。 本发明的芳族二胺在通过异氰酸酯加聚方法制备合成树脂时，特别适用于与多异氰酸酯反应的含活性氢成分。

    Stabilization of organic isocyanates
    2.
    发明授权
    Stabilization of organic isocyanates 失效
    有机异氰酸酯的稳定

    公开(公告)号：US3692813A

    公开(公告)日：1972-09-19

    申请号：US3692813D

    申请日：1970-01-02

    Applicant: BAYER AG

    Inventor： HAGEMANN HERMANN ,  MULLER ERWIN ,  FISCHER PETER

    IPC: C07C20060101 ,  C07C263/18 ,  C07C271/06 ,  C07C311/65 ,  C08G18/72 ,  C08G18/87 ,  C07C119/04

    CPC classification number: C08G18/10 ,  C07C263/18 ,  C08G18/4238 ,  C08G18/771 ,  C07C265/14 ,  C08G18/3206

    Abstract: Organic isocyanates are stabilized against decomposition, which results in precipitate formation and discoloration, by the addition of a small amount of an organic isocyanate compound, preferably an oxycarbonyl isocyanate containing at least one -OCO-NCO group in the molecule. Polyurethane elastomers prepared from isocyanates stabilized in this manner also exhibit a very high resistance to hydrolysis.

    Abstract translation: 通过加入少量的有机异氰酸酯化合物，优选在分子中含有至少一个-O-CO-NCO基团的氧羰基异氰酸酯化合物，有机异氰酸酯被稳定而不会分解，导致沉淀形成和变色。 以这种方式稳定的异氰酸酯制备的聚氨酯弹性体也表现出非常高的抗水解性。

    Polyesters which contain hydroxyl and carbon amide groups
    3.
    发明授权
    Polyesters which contain hydroxyl and carbon amide groups 失效
    含有羟基和碳酰胺基团的聚酯

    公开(公告)号：US3674837A

    公开(公告)日：1972-07-04

    申请号：US3674837D

    申请日：1970-07-08

    Applicant: BAYER AG

    Inventor： WIRTH WOLF-DIETER ,  MULLER ERWIN

    IPC: C08G63/685 ,  C08G69/44 ,  C07C101/26

    CPC classification number: C08G69/44 ,  C08G63/6852

    Abstract: Polyesters which contain hydroxyl and carbonamide groups are prepared by copolymerizing a lactone with a lactam in the presence of a low molecular weight initiator which contains at least two active hydrogen atoms at a temperature of from about 50* C. to about 300* C. These polyesters are particularly useful as plasticizers and stabilizers for polyvinyl chloride.

    Abstract translation: 含有羟基和碳酰胺基团的聚酯通过在约50℃至约300℃的温度下，在含有至少两个活性氢原子的低分子量引发剂的存在下将内酯与内酰胺共聚来制备。 聚酯特别可用作聚氯乙烯的增塑剂和稳定剂。

    Blowing agents
    7.
    发明授权
    Blowing agents 失效
    发泡剂

    公开(公告)号：US3725321A

    公开(公告)日：1973-04-03

    申请号：US25693372

    申请日：1972-05-25

    Applicant: BAYER AG

    Inventor： WIRTH WOLF DITER ,  MULLER ERWIN ,  BLAHAK JOHANNES ,  ROHR HARRY

    IPC: C08J9/06 ,  C08J9/10 ,  C08J1/20

    CPC classification number: C08J9/101 ,  C08J9/06 ,  Y10S264/05

    Abstract: The invention relates to the use of 2,4-dioxo-1,2-dihydro-4Hbenzoxazine as well as derivatives therefrom as blowing agents for the production of cellular and porous articles. These compounds do not liberate any corrosive, discolorizing, malodorous or toxic decomposition products.

    Abstract translation: 本发明涉及2,4-二氧代-1,2-二氢-4H-苯并恶嗪及其衍生物作为生产细胞和多孔制品的发泡剂。 这些化合物不会释放任何腐蚀性，变色，恶臭或有毒的分解产物。

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