摘要:
Processes are provided for manufacturing polytrimethylene ether glycol, in which water is added to the product polymer to facilitate phase separation.
摘要:
Block poly(trimethylene-ethylene ether) glycols are disclosed. The block poly(trimethylene-ethylene ether) glycols can be prepared by the polycondensation of 1,3-propanediol reactant and polyethylene glycol reactant. The block poly(trimethylene-ethylene ether) glycols can be used in breathable membranes, synthetic lubricants, hydraulic fluids, cutting oils, motor oils, surfactants, spin-finishes, water-borne coatings, laminates, adhesives, packaging, films and foams, fibers and fabrics.
摘要:
Disclosed are methods for preparing polyether ester elastomer compositions having polytrimethylene ether ester soft segments and polyethylene ester hard segments and containing a nucleating agent. Shaped articles can be made from the elastomer compositions, particularly molded articles, films and fibers.
摘要:
Wellbore fluids containing poly(trimethylene ether)glycols are provided. The wellbore fluids can provide enhanced functionality, improved cost effectiveness, and reduced environmental impact as compared to conventional wellbore fluids.
摘要:
Electrical apparatuses and a method for their production, the apparatuses containing electrical insulation fluids comprising polytrimethylene homo- or copolyether glycol having a dielectric breakdown voltage greater than about 30 kV, wherein from about 50 to 100 mole percent of the repeating units of the polytrimethylene homo- or copolyether glycol are trimethylene ether units. An electrical insulation fluid comprising (a) polytrimethylene homo- or copolyether glycol having trimethylene ether units at about 50 to 100 mole percent of the repeating units and (b) a blending component selected from the group consisting of vegetable oils, mineral oil, poly alpha olefins, synthetic esters, and silicone fluids, and mixtures thereof, wherein the electrical insulation fluid has a dielectric breakdown voltage of greater than about 30 kV.
摘要:
Heat transfer systems are provided. The heat transfer systems comprise an object in contact with a heat transfer fluid comprising (a) polytrimethylene homo- or copolyether glycol where from about 50 to 100 mole percent of the repeating units are trimethylene ether units, and (b) a blending component selected from the group consisting of ethylene glycol, diethylene glycol, polyalkylene glycol copolymers of ethylene oxide and propylene oxide, vegetable oils, aromatic compounds, mineral oil, silicone fluids, and mixtures thereof. Objects in contact with a heat transfer fluid in the heat transfer systems include automotive radiators, industrial heat exchangers, heat recovery units, refrigeration units, solar panels, cooling towers, transformers, and heating radiators.
摘要:
Disclosed are polyether ester elastomer compositions having polytrimethylene ether ester soft segments and polyethylene ester hard segments and containing a nucleating agent. Shaped articles can be made from these compositions, particularly molded articles, films and fibers.
摘要:
Heat transfer fluids comprising a polytrimethylene ether glycol or random polytrimethylene ether ester glycol, or mixtures thereof, and processes of using them in order to transfer heat.