POLYMERIC DISPERSANTS FROM PHENYL GLYCIDYL ETHER

    公开(公告)号:WO2019074878A1

    公开(公告)日:2019-04-18

    申请号:PCT/US2018/054934

    申请日:2018-10-09

    Applicant: STEPAN COMPANY

    Abstract: Copolymers comprising recurring units of a phenyl glycidyl ether and alkylene oxides are disclosed. Some of the copolymers comprise a di- or polyfunctional nucleophilic initiator and recurring units of the phenyl glycidyl ether and an alkylene oxide. The di- or polyfunctional nucleophilic initiator is an alcohol, phenol, amine, thiol, thiophenol, sulfinic acid, or deprotonated species thereof. Other copolymers comprise a monofunctional nucleophilic initiator selected from thiols, thiophenols, aralkylated phenols, sulfinic acids, secondary amines, C10-C20 terpene alcohols, and deprotonated species thereof. Pigments dispersions comprising the copolymers are also disclosed. The copolymers meet the growing needs of the industry with their ease of manufacture, diverse structures, and desirable performance attributes for dispersing a wide range of organic and inorganic pigments. Agricultural applications for the copolymers are also disclosed.

    POLYMERIC DISPERSANTS FROM ARALKYLATED PHENOLS

    公开(公告)号:WO2019074896A1

    公开(公告)日:2019-04-18

    申请号:PCT/US2018/054958

    申请日:2018-10-09

    Applicant: STEPAN COMPANY

    Abstract: Polymers useful in formulating dispersing agents for pigments are disclosed. One such polymer can be made from a glycidyl intermediate. A nucleophilic initiator can be reacted with epichlorohydrin to produce a glycidyl intermediate. This intermediate is reacted with an aralkylated phenol to give a hydroxy-functional hydrophobe. Alkoxylation of the hydrophobe gives the desired polymer. In an alternative, approach, the polymer is made by reacting the nucleophilic initiator with an aralkylated phenol glycidyl ether to give the hydroxy-functional hydrophobe, which is then alkoxylated. Pigments dispersions comprising the polymers are also disclosed. The polymers meet the growing needs of the industry with their ease of manufacture, diverse structures, and desirable performance attributes for dispersing a wide range of organic and inorganic pigments. Agricultural applications for the polymers are also disclosed.

    METHOD FOR BOOSTING BLOCKING RESISTANCE OF WATERBORNE COATINGS

    公开(公告)号:WO2022150168A1

    公开(公告)日:2022-07-14

    申请号:PCT/US2021/063897

    申请日:2021-12-16

    Applicant: STEPAN COMPANY

    Abstract: A method for boosting the high-temperature blocking resistance of a cured coating made from a waterborne coating formulation is disclosed. Blocking resistance is boosted by incorporating an additive which comprises an organoamine salt of a non-ethoxylated C4-C15 alkyl phosphate. Also disclosed are waterborne coating formulations and cured coatings produced from the formulation. The coating formulations comprise an acrylic latex, water, a dispersant, a pigment, and the anti-blocking additive. Surprisingly, the organoamine salts demonstrate good wetting properties as well as improved high-temperature blocking resistance, much better water solubility, and easier handling when compared with the corresponding alkali metal or ammonium salts. The additives are cost effective and offer environmental and recoating advantages when compared with the fluorochemicals currently available as anti-blocking additives.

    REACTIVE SURFACTANTS
    7.
    发明申请

    公开(公告)号:WO2020185513A1

    公开(公告)日:2020-09-17

    申请号:PCT/US2020/021189

    申请日:2020-03-05

    Applicant: STEPAN COMPANY

    Abstract: Processes for making reactive surfactants are disclosed. In one such process, a fatty epoxide, a glycidyl ether, or a combination thereof is reacted with an olefin-functional nucleophile to produce an olefin-functional hydrophobe. The olefin-functional hydrophobe is reacted with ethylene oxide, propylene oxide, butylene oxides, or a combination thereof to produce an alkoxylate. Optionally, the alkoxylate is converted to the corresponding sulfate, phosphate, or maleate. Surfactant compositions comprising the reactive surfactants made by these processes are also described. The invention includes polymerizable mixtures comprising an acrylic monomer and the surfactant compositions as well as aqueous acrylic latex emulsions and coatings produced from the emulsions. The reactive surfactants deliver stable latex emulsions with reduced tendency for surfactant migration or excessive foaming. Coatings from the emulsions have improved wet adhesion, scrub resistance, and water resistance.

    TRISTYRYLPHENOL ALKOXYLATE SULFOSUCCINATES
    8.
    发明申请
    TRISTYRYLPHENOL ALKOXYLATE SULFOSUCCINATES 审中-公开
    柠檬酸三乙醇胺磺酸盐

    公开(公告)号:WO2015123162A1

    公开(公告)日:2015-08-20

    申请号:PCT/US2015/015115

    申请日:2015-02-10

    Applicant: STEPAN COMPANY

    Abstract: Disclosed are the use of novel surfactants for the synthesis of emulsion polymer latexes, particularly those used in paints, coatings, and pressure sensitive adhesives. The surfactant compositions for emulsion polymer latexes comprise sterically bulky surfactants whose composition comprises at least one alkoxylated polyaryl substituted aromatic sulfosuccinate compound. The novel surfactants provide for the production of stable, small particle size distribution emulsion polymer latexes. The resulting latexes, when formulated into latex paint, impart improvements in water resistance as measured by film opacity, blister resistance and improved leveling characteristics, and when formulated into pressure sensitive adhesives, provide improved water resistance characteristics as measured by film opacity.

    Abstract translation: 公开了使用新的表面活性剂来合成乳液聚合物胶乳,特别是用于油漆,涂料和压敏粘合剂的乳液聚合物胶乳。 用于乳液聚合物胶乳的表面活性剂组合物包含空间庞大的表面活性剂,其组合物包含至少一种烷氧基化聚芳基取代的芳族磺基琥珀酸盐化合物。 新型表面活性剂用于生产稳定的小粒度分布乳液聚合物胶乳。 所得胶乳当配制成胶乳漆时,通过膜不透明度,起泡性和改进的流平特性测量,提高耐水性,并且当配制成压敏粘合剂时,通过膜不透明度测量提供改善的耐水性。

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