89 results about "Alkylresorcinol" patented technology

A modified alkylresorcinol resin is prepared by reacting one or more alkylresorcinols with one or more aldehydes and optionally an olefinically unsaturated compound, The reaction may be carried out in the presence of a catalyst. The resulted modified alkylresorcinol resin can be used as a methylene acceptor that reacts with methylene donors in vulcanizable rubber compositions.

The present invention discloses an agent for external application to the skin which is hardly reduced in viscosity even when stored for a long period under extreme high temperature storage conditions and is therefore stable. The agent is of an emulsion-type, and comprises 1) an alginic acid polyhydric alcohol ester having an esterification degree ranging from 75 to 95% (e.g., alginic acid propylene glycol ester) and / or a salt thereof, 2) a polyvalent metal ion (e.g., a calcium ion); and 3) a 4-alkylresolcinol (e.g., 4-n-butylresolcinol) and / or a salt thereof.

The invention belongs to the technical field of chemical synthesis and in particular relates to a preparation method of a cardanol modified alkylresorcinol-formaldehyde resin. The preparation method comprises the following steps: (1) putting resorcinol, cardanol and p-toluenesulfophenol into a reactor to be mixed uniformly and heating the mixture; (2) dropwise adding styrene and maintaining for 1.5 hours after dropping; (3) cooling the mixture, beginning dropwise adding a formaldehyde solution and reacting at the reduced temperature for 2 hours after dropping; and (4) adding a pH regulator to regulate the pH to 7 and then carrying out heating, distilling and dehydrating to obtain a red brown transparent resin, thus obtaining the cardanol modified alkylresorcinol-formaldehyde resin. The modified alkylresorcinol-formaldehyde resin has better intermiscibility with rubbers and better flexibility, and meanwhile, the product cost is greatly reduced.

The invention belongs to the technical field of weight-loss products, and particularly relates to application of alkyl resorcinol to preparation of a product for preventing or treating obesity relateddiseases. The application of the alkyl resorcinol to preparation of the product for preventing and / or treating the obesity related diseases and improving energy metabolism and heat production of a body is characterized in that the product contains the active ingredient alkyl resorcinol, the alkyl resorcinol is prepared from the following monomers in percentage by weight: 1-10% of heptadecyl resorcinol, 20-25% of nonadecyl resorcinol, 50-55% of heneicosyl resorcinol, 5-10% of tricosyl resorcinol and 5-12% of pentacosyl resorcinol. According to the application, the appropriate ratio of each constituent monomer corresponding to the prevention or treatment of the obesity by improving the energy metabolism of the body or improving the heat production of the body through the alkyl resorcinol isdefined.