High recycle content polyester polyols

    公开(公告)号:US10414859B2

    公开(公告)日:2019-09-17

    申请号:US14886219

    申请日:2015-10-19

    Abstract: Polyester polyols made from thermoplastic polyesters are disclosed. The polyols are reaction products of a thermoplastic polyester, a glycol, and a hydrophobe selected from ricinoleic acid, ethoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids, tung oil, soybean oil, sunflower oil, cardanol-based products, recycled cooking oil, isostearyl alcohol, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or fatty acids, and mixtures thereof. In one process, the polyols are made by reacting the thermoplastic polyester with a glycol to give a digested intermediate, which is then reacted with the hydrophobe. In another process, the thermoplastic polyester, glycol, and hydrophobe are combined and reacted in a single step. These hydrophobes facilitate the production from recycled thermoplastics of polyols that have good transparency and little or no particulate settling or phase separation. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including aqueous polyurethane dispersions, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

    Cycloaliphatic polyester polyols from thermoplastic polyesters
    5.
    发明授权
    Cycloaliphatic polyester polyols from thermoplastic polyesters 有权
    来自热塑性聚酯的脂环族聚酯多元醇

    公开(公告)号:US09522976B2

    公开(公告)日:2016-12-20

    申请号:US15083491

    申请日:2016-03-29

    Abstract: Cycloaliphatic polyester polyols and processes for making them from thermoplastic polyesters are disclosed. One process comprises heating a thermoplastic polyester with a glycol to give a digested intermediate and hydrogenating aromatic rings in the digested intermediate to produce the cycloaliphatic polyester polyol. Optionally, the digested intermediate is reacted with a hydrophobe to give a modified polyol prior to hydrogenation, and the modified polyol is hydrogenated to give the cycloaliphatic polyester polyol. The high-recycle-content cycloaliphatic polyester polyols have desirable attributes for formulating polyurethane dispersions, two-component polyurethane coatings, mono- or poly(meth)acrylates, polyisocyanurates, flexible and rigid foams, coatings, adhesives, sealants, and elastomers, and they provide a sustainable alternative to petrochemical-based polyols.

    Abstract translation: 公开了环脂族聚酯多元醇及其由热塑性聚酯制备它们的方法。 一种方法包括用二醇加热热塑性聚酯以在消化的中间体中产生消化的中间体和氢化芳环以制备脂环族聚酯多元醇。 任选地,将消化的中间体与疏水物反应以在氢化之前得到改性的多元醇,并将改性的多元醇氢化得到环脂族聚酯多元醇。 高回收含量的脂环族聚酯多元醇具有用于配制聚氨酯分散体,双组分聚氨酯涂料,单或多(甲基)丙烯酸酯,聚异氰脲酸酯,柔性和刚性泡沫,涂料,粘合剂,密封剂和弹性体的所需属性,并且它们 为石化多元醇提供可持续的替代方案。

    Polyester polyols with increased clarity

    公开(公告)号:US10934390B2

    公开(公告)日:2021-03-02

    申请号:US15730105

    申请日:2017-10-11

    Abstract: Polyester polyols, processes for making them, and applications for the polyols are disclosed. Some of the polyols comprise recurring units from a digested thermoplastic polyester (e.g., recycled polyethylene terephthalate), a diol, an optional hydrophobe, and a clarifier. The clarifier, which in some cases is a bisphenol, bisphenol alkoxylate, bisphenol polycarbonate, sulfonyl diphenol, or sulfonyl diphenol alkoxylate, helps the polyol remain clear for weeks or months after its preparation. In some aspects, the clarifier is a monophenol, bisphenol, or poly-phenol having two or more phenylene rings wherein at least two of the phenylene rings lack a common molecular axis. The clarifier may also be an alkylated phenol, an epoxy resin, an epoxy novolac resin, a diphenylmethane, or a tris(aryloxy)phosphate. The polyols are valuable for formulating a variety of polyurethanes and related products—including polyurethane dispersions, flexible and rigid foams, coatings, adhesives, sealants, and elastomers—and they provide a sustainable alternative to bio- or petrochemical-based polyols.

    Sustainable base oils for lubricants

    公开(公告)号:US10336958B2

    公开(公告)日:2019-07-02

    申请号:US15686342

    申请日:2017-08-25

    Abstract: Sustainable lubricant compositions made from recycled thermoplastic polyesters and other reclaimed or biorenewable reactants and a method of formulating them are disclosed. The lubricant compositions comprise a polyester base oil, which incorporates recurring units from a digested thermoplastic polyester, a low-molecular-weight polyol, and C8-C24 fatty acid. The base oil has a number-average molecular weight within the range of 300 to 5000 g/mol, a hydroxyl value less than 50 mg KOH/g, and a viscosity at 40° C. less than 5000 cSt. Some of the lubricant compositions comprise the polyester base oil and one or more additives including anti-wear agents, corrosion inhibitors, antioxidants, thickeners, detergents, and the like. The lubricants have properties that rival those of commercial products made from nonrenewable hydrocarbon blends or polyol esters and are useful for many practical applications such as internal combustion engine oils, gear lubrication oils, hydraulic oils, compressor oils, metal working fluids, and lubricating greases.

    INTEGRATED PROCESS FOR TREATING RECYCLED PET AND PTT MATERIALS

    公开(公告)号:US20190010303A1

    公开(公告)日:2019-01-10

    申请号:US16127423

    申请日:2018-09-11

    Abstract: A process for producing a polyester polyol comprising reacting a recycle stream selected from recycled PET carpet, carpet fiber, containers, textiles, articles or mixtures thereof, with a glycol in a reactor, thereby forming a digested product stream comprising polyols, and an undigested stream; and then reacting the digested product stream with a hydrophobe selected from dimer fatty acids, trimer fatty acids, oleic acid, ricinoleic acid, tung oil, corn oil, canola oil, soybean oil, sunflower oil, bacterial oil, yeast oil, algae oil, castor oil, triglycerides or alkyl carboxylate esters having saturated or unsaturated C6-C36 fatty acid units, saturated or unsaturated C6-C36 fatty acids, alkoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids or diols, cardanol-based products, recycled cooking oil, branched or linear C6-C36 fatty alcohols, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or acids, or mixtures thereof.

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