Method for producing hydrophobically modified acrylic rheology modifers
    2.
    发明申请
    Method for producing hydrophobically modified acrylic rheology modifers 审中-公开
    制备疏水改性丙烯酸流变改性剂的方法

    公开(公告)号:US20110237745A1

    公开(公告)日:2011-09-29

    申请号:US12932853

    申请日:2011-03-08

    IPC分类号: C08L33/10

    摘要: A method for preparing hydrophobically modified rheology modifiers; said method comprising polymerizing a monomer mixture having two or more components. The first component is H2C═C(R)C(O)X(CH2CH2O)n(CH(R′)CH2O)mR″ or H2C═C(R)C6H4C(CH3)2NHCO2(CH2CH2O)n(CH(R′)CH2O)mR″, wherein X is O or NH, R is H or CH3, R′ is C1-C2 alkyl, R″ is C8-C22 alkyl or C8-C16 alkylphenyl, n is an average number from 6-100 and m is an average number from 0-50, provided that n≧m and m+n is 6-100. The second component is a C3-C6 carboxylic acid monomer; wherein polymerization occurs in the presence of an oxidant, a reductant and a metal catalyst, and substantially in the absence of a peroxide, hydroperoxide or perester containing an alkyl group having at least five carbon atoms.

    摘要翻译: 制备疏水改性流变改性剂的方法; 所述方法包括聚合具有两种或多种组分的单体混合物。 第一组分是H 2C≡C(O)X(CH 2 CH 2 O)n(CH(R')CH 2 O)m R“或H 2 C = C(R)C 6 H 4 C(CH 3)2 NHCO 2(CH 2 CH 2 O)n(CH )CH 2 O)m R“,其中X是O或NH,R是H或CH 3,R'是C 1 -C 2烷基,R”是C 8 -C 22烷基或C 8 -C 16烷基苯基,n是6-100的平均数, m是0-50的平均数,条件是n≥m且m + n为6-100。 第二组分是C 3 -C 6羧酸单体; 其中聚合在氧化剂,还原剂和金属催化剂的存在下发生,并且基本上不存在含有至少五个碳原子的烷基的过氧化物,氢过氧化物或过酸酯。