High solids polycarboxylate synthesis for cement superplasticizers

    公开(公告)号:US10899666B2

    公开(公告)日:2021-01-26

    申请号:US15773593

    申请日:2016-11-18

    Abstract: The present invention provides efficient methods to form a high solids content polymeric polyacid or a comb polymer useful as a superplasticizer or dispersant which comprise heating to from 80 to 100 C. for a first time period, and then, sequentially, heating to a second temperature of from 150 to 250° C. for a second time period a wet reaction mixture having a solids content of from 80 to 99 wt. % and comprising from 15 to 60 wt. % of one or more ethylenically unsaturated acid or a salt thereof, from 37 to 76.99 wt. % of one or more polyether polyols, alkyl polyether polyols, polyether amines or alkyl polyether amines in the presence of (i) from 0.01 to 1 wt. %, of one or more water soluble radical initiators or redox pairs and (ii) from 2 to 22 wt. % of one or more phosphorus oxide containing compounds, all weights based on the total weight of the wet reaction mixture.

    Polymethacrylic acid anhydride telomers
    6.
    发明授权
    Polymethacrylic acid anhydride telomers 有权
    聚甲基丙烯酸酐调节剂

    公开(公告)号:US08859686B2

    公开(公告)日:2014-10-14

    申请号:US14208500

    申请日:2014-03-13

    Abstract: The present invention provides compositions of phosphorus acid group and methacrylic anhydride group containing telomeric copolymers of methacrylic acid having an as yet never achieved amount of more than 70 wt. %, or, preferably, 72 wt. % or more, and up to 99 wt. %, of methacrylic anhydride groups based on the total weight of polymerized methacrylic acid and/or salt units. The compositions enjoy higher thermal stability than was previously achieved and enable easer processing that does not require the removal of liquids or solvents.

    Abstract translation: 本发明提供含磷酸基团和甲基丙烯酸酐基团的组合物,其含有至少未达到大于70重量%的甲基丙烯酸的端粒共聚物。 %,或优选72wt。 %以上,高达99wt。 %,基于聚合的甲基丙烯酸和/或盐单元的总重量的甲基丙烯酸酐基团。 该组合物的热稳定性高于之前实现的,并且能够进行不需要去除液体或溶剂的缓冲加工。

    HIGH SOLIDS POLYCARBOXYLATE SYNTHESIS FOR CEMENT SUPERPLASTICIZERS

    公开(公告)号:US20190152851A1

    公开(公告)日:2019-05-23

    申请号:US15773593

    申请日:2016-11-18

    Abstract: The present invention provides efficient methods to form a high solids content polymeric polyacid or a comb polymer useful as a superplasticizer or dispersant which comprise heating to from 80 to 100 C for a first time period, and then, sequentially, heating to a second temperature of from 150 to 250° C. for a second time period a wet reaction mixture having a solids content of from 80 to 99 wt. % and comprising from 15 to 60 wt. % of one or more ethylenically unsaturated acid or a salt thereof, from 37 to 76.99 wt. % of one or more polyether polyols, alkyl polyether polyols, polyether amines or alkyl polyether amines in the presence of (i) from 0.01 to 1 wt. %, of one or more water soluble radical initiators or redox pairs and (ii) from 2 to 22 wt. % of one or more phosphorus oxide containing compounds, all weights based on the total weight of the wet reaction mixture.

    POLYMETHACRYLIC ACID ANHYDRIDE TELOMERS
    9.
    发明申请
    POLYMETHACRYLIC ACID ANHYDRIDE TELOMERS 有权
    聚甲基丙烯酸氢氧化物催化剂

    公开(公告)号:US20140275386A1

    公开(公告)日:2014-09-18

    申请号:US14208500

    申请日:2014-03-13

    Abstract: The present invention provides compositions of phosphorus acid group and methacrylic anhydride group containing telomeric copolymers of methacrylic acid having an as yet never achieved amount of more than 70 wt. %, or, preferably, 72 wt. % or more, and up to 99 wt. %, of methacrylic anhydride groups based on the total weight of polymerized methacrylic acid and/or salt units. The compositions enjoy higher thermal stability than was previously achieved and enable easer processing that does not require the removal of liquids or solvents.

    Abstract translation: 本发明提供含磷酸基团和甲基丙烯酸酐基团的组合物,其含有至少未达到大于70重量%的甲基丙烯酸的端粒共聚物。 %,或优选72wt。 %以上,高达99wt。 %,基于聚合的甲基丙烯酸和/或盐单元的总重量的甲基丙烯酸酐基团。 该组合物的热稳定性高于之前实现的,并且能够进行不需要去除液体或溶剂的缓冲加工。

    Resins of B-hydroxy propyl gamma-polyoxyalkylene ethers and polymers thereof
    10.
    发明授权
    Resins of B-hydroxy propyl gamma-polyoxyalkylene ethers and polymers thereof 有权
    B-羟基丙基γ-聚氧化烯醚的树脂及其聚合物

    公开(公告)号:US09175121B2

    公开(公告)日:2015-11-03

    申请号:US14353821

    申请日:2012-10-25

    CPC classification number: C08F220/28 C08F8/14 C08F2220/285 C08F8/44 C08F120/06

    Abstract: The present invention provides aqueous compositions comprising β-hydroxy propyl gamma-polyoxyalkylene ether functional resins chosen from (poly)oxyalkylene ether β-hydroxy propyl (meth)acrylates, maleates and itaconates, water soluble copolymers thereof, and mixtures thereof. The water soluble copolymers are comb polymers and (meth)acrylate, maleate and itaconate monomer resins can be addition polymerized to form comb polymers suitable for many uses, such as superplasticizers, dispersants, detergents and floor care compositions. In addition, the present invention provides methods of making the resins by reacting in water or aqueous solvent one or more reactant a) a glycidyl polyether or glycidyl ether, optionally having an alkyl or aryl end group with one or more reactant b) a carboxylate anion containing vinyl compound or polymer, preferably a polymer such as poly(meth)acrylic acid. The methods enable simple formation of comb polymers.

    Abstract translation: 本发明提供包含选自(聚)氧化烯醚和( - )羟基丙基(甲基)丙烯酸酯,马来酸酯和衣康酸酯,其水溶性共聚物和它们的混合物的β-羟基丙基γ-聚氧化烯醚官能树脂的含水组合物。 水溶性共聚物是梳状聚合物,(甲基)丙烯酸酯,马来酸酯和衣康酸酯单体树脂可加成聚合以形成适用于许多用途的梳状聚合物,如超增塑剂,分散剂,洗涤剂和地板护理组合物。 此外,本发明提供了通过在水或水性溶剂中反应制备所述树脂的方法,一种或多种反应物a)任选具有烷基或芳基端基的缩水甘油醚或缩水甘油醚与一种或多种反应物b)羧酸根阴离子 含有乙烯基化合物或聚合物,优选聚合物如聚(甲基)丙烯酸。 该方法能够简单地形成梳状聚合物。

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