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Resin beads, method for manufacturing resin beads and product including resin beads

A technology of resin microbeads and monomers, applied in the direction of medical preparations containing active ingredients, dressing preparations, cosmetic preparations, etc., can solve the problems of compatibility and adhesion, loss of hydrophilicity, Loss of hydrophobicity and other issues

Active Publication Date: 2017-02-22
DAINICHISEIKA COLOR & CHEM MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in Patent Document 3, it is desired to impart water repellency, improve adhesion to the skin, etc., and compatibility with coexisting oil agents with respect to silicone polymers widely used in cosmetics, but If a long-chain alkyl group (hydrophobic group) is introduced into the silicone polymer to improve compatibility, the hydrophilicity will be lost, and if a hydrophilic group is introduced to improve the adhesion, the hydrophobicity will be lost, which is difficult. Simultaneously solve compatibility and tightness

Method used

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  • Resin beads, method for manufacturing resin beads and product including resin beads
  • Resin beads, method for manufacturing resin beads and product including resin beads
  • Resin beads, method for manufacturing resin beads and product including resin beads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (Example of producing a non-polymerizable silicone acrylic copolymer in a polymerizable monomer liquid)

[0047] First, 200 parts of lauryl methacrylate was added to a solution in which 4 parts of V-65 was dissolved in 200 parts of polyethylene glycol dimethacrylate (manufactured by Shin-Nakamura Chemical Industry Co., Ltd., trade name: NK1G) prepared in advance. (manufactured by Kao Corporation, trade name: LMA) and 28 parts of non-polymerizable silicone acrylic copolymers (manufactured by Shin-Etsu Chemical Industry Co., Ltd., trade name: KP-578, active ingredient 100%), and they are uniformly stirred and mixed , to prepare a polymerizable monomer liquid. KP-578 used above is a graft copolymer formed of acrylic polymer and dimethyl polysiloxane. The viscosity at 25°C is 150 to 200 mPa·s.

[0048] Next, in another container, 80 parts of PVA as a dispersion stabilizer was dissolved in 1600 parts of ion-exchanged water, and the polymerizable monomer liquid prepared ab...

Embodiment 2

[0050] (Example of producing a non-polymerizable polyether alkyl co-modified silicone in a polymerizable monomer liquid)

[0051] First, 200 parts of butyl methacrylate (manufactured by Mitsubishi Rayon Co., Ltd.), 80 parts 20 parts of non-polymerizable polyether alkyl co-modified silicone (manufactured by Shin-Etsu Chemical Co., Ltd., trade name: KSG-310, active ingredient 25-35%) and 20 parts of propylene glycol monomethyl ether acetate Solution with 4 parts of V-65 dissolved. Then, these are uniformly stirred and mixed to prepare a polymerizable monomer liquid. Next, in another container, the aqueous phase in which 88 parts of PVA as a dispersion stabilizer was dissolved in 1600 parts of ion-exchanged water was used, except that the subsequent cleaning and other operations were carried out in the same manner as in Example 1 to obtain Resin beads made of a non-polymerizable silicone compound were used as the resin beads of this example. KSG-310 used above is a mixture of...

Embodiment 3

[0052] (Example of producing a polymerizable monomer liquid containing a non-polymerizable silicone elastomer)

[0053] Add 320 parts of methacrylic acid to a solution in which 4 parts of V-65 were dissolved in 80 parts of hexanediol dimethacrylate (manufactured by Shin-Nakamura Chemical Industry Co., Ltd., trade name: NK ester HD-N) prepared in advance. Lauryl ester (manufactured by Kao Corporation, trade name: LMA) and 100 parts of non-polymerizable silicone elastomers (manufactured by Dow Corning Toray Co., Ltd., trade name: 9040S.E.B, active ingredient 15%) were subjected to Stir and mix uniformly to prepare a polymerizable monomer liquid, except that, in the same manner as in Example 1, resin beads containing a non-polymerizable silicone compound immobilized inside were obtained, which were used as this example. resin beads. The silicone elastomer (trade name: 9040S.E.B) used above was a mixture of 12% of dimethicone crosspolymer and 88% of cyclopentasiloxane.

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Abstract

Provided are: resin beads that, when added to, for example, a cosmetic material, provide the product with stable, high-level water repellency and oil absorbability, that have superior spreadability on the skin and no stickiness, and that further achieves excellent makeup durability; a method for manufacturing the resin beads; and various products with excellent properties using the resin beads. The resin beads, the method for manufacturing the resin beads, and various products with excellent properties using the resin beads, the resin beads characterized: in being obtained by suspension-polymerizing a monomer mixture including multiple monomers having a copolymerizable functional group at least in a condition where a non-polymerizable silicone compound is present; and in being resin particles having a roughened surface.

Description

technical field [0001] The present invention relates to resin beads which are resin particles containing a non-polymerizable silicone compound, their production method, and their use. More specifically, the present invention relates to oil-absorbing resin beads obtained by immobilizing a non-polymerizable silicone compound inside and roughening the surface of the resin particles as a functional material capable of imparting water repellency. Production methods of resin beads, products in the fields where such functions are required, such as cosmetics, coatings, skin external medicines such as plasters, paints, moldings, films, coating agents, or resin compositions, etc. in the application. Background technique [0002] Resin beads have been used in various fields such as matting agents, lubricants, and anti-blocking agents due to their spherical characteristics. Furthermore, in cosmetics, various resin powders (resin particles) are used in order to improve ductility for co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/18A61K8/81A61K8/89A61Q1/00
CPCC08F2/18C08F2/44A61Q19/008A61K8/891A61K8/894A61K8/895A61K8/025A61K8/0279C08L33/04A61Q1/02C08F220/1812C08F222/102C08F220/1804C08L83/00A61K8/0241A61K8/81A61K8/8152A61K8/89A61Q1/00A61K2800/412A61K8/8164A61K8/893A61K8/91A61K2800/43A61K2800/594C08L33/10C08L35/02C08L2203/00C08K5/54
Inventor 安部隆士
Owner DAINICHISEIKA COLOR & CHEM MFG CO LTD
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