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    • 43. 发明授权
    • Modified polymers incorporating fatty amines
    • 掺入脂肪胺的改性聚合物
    • US4999161A
    • 1991-03-12
    • US297272
    • 1989-01-13
    • Claudia C. PierceDavid A. GrattanDodd W. Fong
    • Claudia C. PierceDavid A. GrattanDodd W. Fong
    • C08F8/32C23F11/173
    • C23F11/173C08F8/12
    • The invention is a method of making water-insoluble aliphatic primary or secondary amines, water-soluble or dispersible, which comprises reacting at a temperature of at least 120.degree. C. these amines with water-soluble acrylamide polymer which contains at least 5 mole percent acrylamide to transamidate not more than 50% mole percent of the acrylamide polymer with the water-insoluble aliphatic primary or secondary amine. The invention also covers a water-soluble or dispersible polymeric composition comprising an acrylic acid polymer having a molecular weight within the range of 500-100,000 which contains between 0.5-50 mole percent of the acrylic acid groups in the form of the amides of a water-insoluble aliphatic primary or secondary amine which contains from 10-36 carbon atoms.
    • 本发明是制备水不溶性脂族伯或仲胺水溶性或分散性的方法,其包括在至少120℃的温度下使这些胺与水溶性丙烯酰胺聚合物反应,所述丙烯酰胺聚合物含有至少5摩尔% 丙烯酰胺以不超过50%摩尔百分比的丙烯酰胺聚合物与水不溶性脂族伯或仲胺反应。 本发明还涵盖水溶性或分散性聚合物组合物,其包含分子量在500-100,000范围内的丙烯酸聚合物,其含有0.5-50摩尔%的水形式的丙烯酸基团 不溶性脂族伯或仲胺,其含有10-36个碳原子。
    • 46. 发明授权
    • Use of copolymers of carboxylic monomer and betaine-containing monomer
as corrosion and scale inhibitors
    • 使用羧基单体和含甜菜碱的单体的共聚物作为腐蚀和结垢抑制剂
    • US4604212A
    • 1986-08-05
    • US734942
    • 1985-05-16
    • Gary F. Matz
    • Gary F. Matz
    • C02F5/12C02F5/14C23F11/173
    • C23F11/173C02F5/12C02F5/14
    • The instant invention is directed to a process for inhibiting corrosion and the formation and deposition of scale in aqueous systems comprising adding to the system at least 0.1 ppm. of a water soluble polymer, having an intrinsic viscosity of 0.05 to 2.5 dl/g, prepared from:(A) 50 to 95%, by weight, of an unsaturated carboxylic acid, or its salt, and(B) 5 to 50%, by weight, of a betaine-containing monomer selected from the group consisting of: ##STR1## wherein R, which may be the same or different, is hydrogen, a straight or branched, alkyl or an aryl or alkylaryl group of from 1 to 20 carbon atoms;R.sup.1, which may be the same or different, is a saturated, straight or branched alkyl group of from 1 to 10 carbon atoms;A is NH or O; andZ is ##STR2##
    • 本发明涉及一种用于抑制水性体系中的腐蚀和垢的形成和沉积的方法,包括向体系中加入至少0.1ppm。 的水溶性聚合物,其特性粘度为0.05至2.5dl / g,由以下组分制备:(A)50至95重量%的不饱和羧酸或其盐,和(B)5至50重量% (iii)其中R可以相同或不同,为氢,一个或多个选自下组的含甜菜碱的单体:(i) 烷基或具有1至20个碳原子的芳基或烷基芳基; R 1可以相同或不同,为具有1-10个碳原子的饱和直链或支链烷基; A是NH或O; 而Z是