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299 results about "D limonene" patented technology

Plant source green and environment-friendly solvent and preparation thereof

The invention is suitable for the technical field of pesticide solvents, provides a plant source green and environment-friendly solvent and simultaneously provides a method for preparing the plant source green and environment-friendly solvent from destructive distillation turpentine. The plant source green and environment-friendly solvent comprises the following components in percentage by mass: 10 to 40 percent of pinene, 10 to 40 percent of D-limonene, 5 to 15 percent of longifolene, 5 to 15 percent of camphene, 3 to 15 percent of dehydroabietic acid, 1 to 10 percent of pinane and 0 to 2 percent of antioxygen. The preparation method comprises the following steps: (1) pulverizing and dehydrating the turpentine; (2) performing dry distillation and collecting lysate; (3) washing the turpentine by alkali liquor, standing the washed turpentine for fractional distillation; (4) performing dehydration; and (5) adding the antioxygen for uniform dissolution to prepare the plant source green and environment-friendly solvent. A raw material adopted by the solvent is the turpentine of pine trees, and is low in cost; the preparation method has simple process, environmental protection and lessenergy consumption; decomposition components give priority to safe and environment-friendly components, such as a terpene compound and the like and can be controlled; and the plant source green and environment-friendly solvent has low production cost, safety and environmental protection, and is beneficial for people.
Owner:SHENZHEN NOPOSION AGROCHEM

Adhesive composition primarily intended for use in medical applications

The present invention provides an adhesive composition for use in bonding a polymeric fitting to an olefin-containing component of an article used in medical applications. The adhesive composition according to the invention includes an adhesive polymer system dissolved in a solvent system. The solvent system includes an organic solvent having a solubility parameter within the range of from about 7.5 to about 10 (cal / cm<3>)<1 / 2>. Subsequent to forming a bond between the polymeric fitting and the olefin-containing component, the adhesive composition can meet the requirements for USP Class VI materials. In a preferred embodiment of the invention, the adhesive composition includes a low shear mixture of an adhesive polymer system including an atactic polypropylene and a low density polyethylene that is dissolved in a solvent system including a blend of d-limonene and a ketone selected from the group consisting of 4-heptanone and cyclohexanone. The adhesive composition can be used, for example, to bond polymeric fittings made of materials such as, but not limited to, acrylic, polycarbonate, polyvinyl chloride, polyolefin, acrylonitrile butadiene-styrene, and polyester, to olefin-containing components of articles used in medical applications such as, but not limited to, tubing.
Owner:LYONDELLBASELL ADVANCED POLYMERS INC
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