Copolymers of cyclic carbonic acid esters and lactams and their
production
    1.
    发明授权
    Copolymers of cyclic carbonic acid esters and lactams and their production 失效
    环状碳酸酯和内酰胺的共聚物及其制备

    公开(公告)号:US4431795A

    公开(公告)日:1984-02-14

    申请号:US384566

    申请日:1982-06-03

    CPC分类号: C08G69/44 C08G71/04

    摘要: A process for producing an anionic copolymer containing urethane and carboxylic acid ester moieties with or without carbonate moieties, carbonamide moieties, or both carbonate and carbonamide moieties, having weight average molecular weights from 1,000 to 150,000, determined by light diffusion method, which comprises heating an anhydrous mixture of 20 to 80% by weight of lactam and 80 to 20% by weight of a cyclic carbonate at temperatures between 100.degree. and 250.degree. C. in the presence of 0.001 to 1% by weight, based on the quantity of monomers, of an alkaline catalyst and copolymers produced thereby which are useful as adhesives, plasticizers and lacquers.

    摘要翻译: 一种含有具有或不具有碳酸酯部分的氨基甲酸酯和羧酸酯部分的阴离子共聚物的方法,碳酸酯部分的碳酰胺部分或碳酸酯和碳酰胺部分,重均分子量为1,000至150,000,通过光漫射法测定,其包括加热 基于单体的量,在0.001至1重量%的存在下,在100至250℃的温度下,将20至80重量%的内酰胺和80至20重量%的环状碳酸酯的无水混合物, 的碱性催化剂和由此制备的共聚物,其可用作粘合剂,增塑剂和漆。

    Copolymers based on aliphatic polycarbonates and lactams
    2.
    发明授权
    Copolymers based on aliphatic polycarbonates and lactams 失效
    基于脂肪族聚碳酸酯和内酰胺的共聚物

    公开(公告)号:US4377670A

    公开(公告)日:1983-03-22

    申请号:US314242

    申请日:1981-10-23

    CPC分类号: C08G69/44 C08G71/04

    摘要: Anionic copolymers of lactams and aliphatic polycarbonates having urethane and carboxylic acid ester groups, preferably having recurring structural units of the formula:--NH--CO--O--Y--O--CO--(CR.sub.2).sub.n --whereinR represents hydrogen or C.sub.1 -C.sub.4 -alkyl;n represents an integer of from 2 to 13;Y represents the residue of an alcohol of the following formula:HO--X--OH,whereinX represents an open-chain, cyclic or mixed open-chain-cyclic alkylene radical having from 2 to 12 carbon atoms which is optionally substituted by C.sub.1 -C.sub.4 -alkyl and optionally interrupted by from 1 to 3 oxygen atoms, or a polyethylene glycol having a molecular weight up to 10,000 or an alkoxylation product of bifunctional phenols.

    摘要翻译: 具有氨基甲酸酯和羧酸酯基的内酰胺和脂族聚碳酸酯的阴离子共聚物,优选具有下式的重复结构单元:-NH-CO-O-Y-O-CO-(CR2)n-,其中R表示氢或C1-C4-烷基; n表示2〜13的整数, Y表示下式的醇的残基:HO-X-OH,其中X表示具有2至12个碳原子的开链,环状或混合的开链 - 环状亚烷基,其任选被C1- C4烷基,任选地被1至3个氧原子间隔,或分子量高达10,000的聚乙二醇或双功能酚的烷氧基化产物。

    Process for the preparation of diaryl carbonates
    8.
    发明授权
    Process for the preparation of diaryl carbonates 失效
    制备碳酸二芳基酯的方法

    公开(公告)号:US4012406A

    公开(公告)日:1977-03-15

    申请号:US618057

    申请日:1975-09-30

    CPC分类号: C07C68/02

    摘要: A process for the preparation of a diaryl carbonate by the reaction of an aromatic monohydroxy compound with phosgene under elimination of hydrogen chloride, wherein said reaction is carried out in the presence of a catalytic quantity of an aromatic heterocyclic basic nitrogen compound, or a salt thereof, or an adduct thereof formed under the reaction conditions.

    摘要翻译: 一种在消除氯化氢时通过芳族单羟基化合物与光气反应制备碳酸二芳酯的方法,其中所述反应在催化量的芳族杂环碱性氮化合物或其盐的存在下进行 ,或其在反应条件下形成的加合物。

    Cyclic carbonic acid derivatives
    9.
    发明授权
    Cyclic carbonic acid derivatives 失效
    环状碳酸衍生物

    公开(公告)号:US4501905A

    公开(公告)日:1985-02-26

    申请号:US555754

    申请日:1983-11-28

    摘要: New cyclic carbonic acid derivatives of the formula ##STR1## in which R denotes either --CH.sub.2 OH, R.sup.1 then representing an alkyl radical having 1 to 4 C atoms, or ##STR2## R.sup.1 and R.sup.2 then independently of one another representing methyl or ethyl, or ##STR3## R.sup.1 and R.sup.3 then each representing an alkyl radical having 1 to 4 C atoms,or in whichR and R.sup.1 together denote ##STR4## wherein A represents the group ##STR5## or oxygen, a process for their preparation, and their use as copolymerization components in the preparation of polycarbonates.

    摘要翻译: 式(IMAGE)的新的环状碳酸衍生物,其中R表示-CH 2 OH,R 1表示具有1至4个C原子的烷基,或者R 1和R 2彼此独立地代表甲基或乙基,或 R1和R3分别代表具有1至4个C原子的烷基,或其中R和R 1一起表示“IMAGE”,其中A表示基团或氧,其制备方法及其用途 作为制备聚碳酸酯的共聚组分。

    Process for the preparation of dimethyl carbonate
    10.
    发明授权
    Process for the preparation of dimethyl carbonate 失效
    碳酸二甲酯的制备方法

    公开(公告)号:US4335051A

    公开(公告)日:1982-06-15

    申请号:US155036

    申请日:1980-05-30

    IPC分类号: C07C69/96 C07C68/00 C07C68/02

    CPC分类号: C07C68/02

    摘要: In a process for the preparation of dimethyl carbonate by reacting methanol with phosgene and/or methyl chloroformate, the improvement wherein the reaction is carried out in the presence of an aqueous alkali metal hydroxide solution and in the presence of an inert, water-immiscible organic solvent, at a temperature in the range from -20.degree. C. to +40.degree. C.

    摘要翻译: 在通过甲醇与光气和/或氯甲酸甲酯反应制备碳酸二甲酯的方法中,其反应在碱金属氢氧化物水溶液的存在下和在惰性的与水不混溶的有机物的存在下进行 溶剂,温度范围为-20℃至+ 40℃。