8 results about "Unsaturated fatty acid ester" patented technology

Provided is a novel resin composition containing poly(3-hydroxybutyrate) (also referred to as "PHB") and being capable of preventing adhesion to a metal part during fiberization.　The resin composition contains poly(3-hydroxybutyrate) and a polyglycerol unsaturated fatty acid ester.

This application relates to the field of rubber sealing materials technology, and discloses a low-temperature resistant and high-resilience EPDM seal, its preparation method, and its application. The low-temperature resistant and high-resilience EPDM seal of this application uses a rubber matrix, carbon black, plasticizer, peroxide vulcanizing agent, vulcanization activator, crosslinking agent, and antioxidant as raw materials. The rubber matrix includes EPDM and modified EPDM, with modified EPDM accounting for 8-35% of the total mass of the rubber matrix. The plasticizer is selected from at least one of epoxidized fatty acid esters, epoxidized vegetable oils, and unsaturated fatty acid esters. Furthermore, the composition and proportion of each raw material are specified. The preparation method involves mixing, vulcanization, primary vulcanization, and secondary vulcanization steps, enabling the low-temperature resistant and high-resilience EPDM seal of this application to possess both excellent low-temperature resistance and high resilience, and high-temperature resistance to compression deformation, thus meeting the long-term sealing requirements of new energy vehicle engine cooling systems under different regions and operating conditions.

In frozen foods that use emulsified sauces, ice crystals form during freezing storage, and starch retrogradation occurs due to freezing, which destroys the emulsion in the sauce, causing water and oil separation and a loss of flavor when thawed. [Solution] An emulsified sauce is prepared using an oil and fat composition for emulsified sauce, which is characterized in that the edible oil and fat contains a polyhydric alcohol unsaturated fatty acid ester having an HLB of less than 12 and an average esterification rate of 10% or more.

Provided is a method for efficiently producing a target highly unsaturated fatty acid ester composition with high purity. Provided is a method for producing a highly unsaturated fatty acid ester composition from a fat and oil composition, the method comprising: supplying the fat and oil composition to a first column chromatography, and removing all or part of at least one component in which the relative value of the retention time of the peak top of a target object in the first column chromatography is 1.8-3.5 when the retention time of the peak top is 1.0; and supplying an eluate containing the target obtained in the first column chromatography to a second column chromatography, and removing all or part of at least one component in which the relative value of the retention time of the peak top of the target in the second column chromatography is 0.90-1.1 when the retention time of the peak top is 1.0.

The present invention relates to a novel resin composition containing poly(3-hydroxybutyrate) (also referred to as "PHB") and a crystallization nucleating agent, the resin composition being capable of suppressing the occurrence of burrs and warpage during injection molding. The resin composition contains PHB, a polyglycerol unsaturated fatty acid ester, and a crystallization nucleating agent.

The present disclosure describes aqueous adhesives containing, in particular, a binder and a sugar fatty acid ester, in particular, an unsaturated fatty acid ester (uSFAE), including aqueous adhesive compositions containing such a combination wherein such aqueous adhesive compositions exhibit improved water resistance compared to adhesives that do not contain the uSFAE. Articles comprising the aqueous adhesive compositions are also described.

The utility model belongs to the technical field of diesel oil anti-wear agent production, and particularly relates to an anti-blocking system for a diesel oil anti-wear agent production process, which comprises a first stirring kettle, a centrifugal machine, a second stirring kettle, a first centrifugal pump and a third stirring kettle which are connected in sequence, an outlet of the third stirring kettle is respectively connected with a second centrifugal pump and a third centrifugal pump through pipelines, and the second centrifugal pump and the third centrifugal pump are connected in parallel; a water outlet is formed in the top of the centrifugal pump, and the water outlet is conveyed to the first conveying pipe with the jacket heat tracing function, the second conveying pipe with the jacket heat tracing function and the third conveying pipe with the jacket heat tracing function through pipelines. A hot water phase (80-90 DEG C) generated after washing of the coarse anti-wear agent in the stirring kettle is used for heat tracing of a discharge pipeline of palmitic acid and sewage containing the palmitic acid, the pipeline is prevented from being blocked by solidification and precipitation of the palmitic acid, and the method can be suitable for continuous production of unsaturated fatty acid and unsaturated fatty acid ester type anti-wear agents.

Provided is a method for producing a concentrated liquid of a minute useful substance.　The method for producing a concentrated liquid containing a minute useful substance involves: adding an oxyethylene adduct of a sorbitan unsaturated fatty acid ester to a primary liquid raw material containing a minute useful substance to obtain a secondary liquid raw material; and applying the secondary liquid raw material to a hollow fiber membrane to concentrate the secondary liquid raw material.