Patents Assigned to SUNJIN CHEMICAL Co., Ltd.
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Patent number: 9487651Abstract: The present invention relates to a hemispherical polymethylmethacrylate bead, wherein the hemispherical polymethylmethacrylate bead of the invention has high adhesive property and oil absorption when applied to cosmetics, medical supply, household items, display devices, lighting fixtures, and miscellaneous goods and especially, it enables cheerful color when applied to cosmetics in comparison with spherical polymethylmethacrylate beads.Type: GrantFiled: July 10, 2012Date of Patent: November 8, 2016Assignee: SUNJIN CHEMICAL CO., LTDInventors: Sung Ho Lee, Jang ho Park, Sang Uk Kim, Yang Bae Yoon, Hyun Nam
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Publication number: 20150118493Abstract: The present invention relates to a hemispherical polymethylmethacrylate bead, wherein the hemispherical polymethylmethacrylate bead of the invention has high adhesive property and oil absorption when applied to cosmetics, medical supply, household items, display devices, lighting fixtures, and miscellaneous goods and especially, it enables cheerful color when applied to cosmetics in comparison with spherical polymethylmethacrylate beads.Type: ApplicationFiled: July 10, 2012Publication date: April 30, 2015Applicant: SUNJIN CHEMICAL CO., LTD.Inventors: Sung Ho Lee, Jang ho Park, Sang Uk Kim, Yang Bae Yoon, Hyun Nam
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Publication number: 20140348885Abstract: This invention relates to a mass preparation method of spherical natural color wax beads and according to the invention, the beads have a higher specific gravity than water so that the beads do not flow into the sea and they are biodegradable to fundamentally remarkably reduce marine ecosystem contamination, and it enables mass preparation by significantly improving the previous preparation of spherical natural color wax beads which had difficulties in their mass preparation while using expensive equipment.Type: ApplicationFiled: July 24, 2013Publication date: November 27, 2014Applicant: SUNJIN CHEMICAL CO., LTDInventors: Sung Ho LEE, Sang Uk Kim, Chang Wan Lim, Yeo Jin Jeong
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Patent number: 8680039Abstract: The present invention relates to a method of preparing a fabric softener and to a fabric softener prepared thereby, and more particularly, to a method of preparing a fabric softener containing an esterquat by performing a two-step transesterification reaction on oil and tertiary hydroxyalkyl amine at a low temperature in a high vacuum state under specific conditions, and then quaternizing the resultant product. The method of preparing a fabric softener containing an esterquat according to the present invention can reduce the content of unconverted glyceride, glyceryl ester, or a mixture thereof, and can provide a fabric softener with excellent long-term stability.Type: GrantFiled: January 30, 2013Date of Patent: March 25, 2014Assignee: Sunjin Chemical Co., Ltd.Inventors: Sang-Ho Lee, Han-Song Chu, Jae-Young Choi, Se-Kyu Hwang
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Publication number: 20130143789Abstract: The present invention relates to a method of preparing a fabric softener and to a fabric softener prepared thereby, and more particularly, to a method of preparing a fabric softener containing an esterquat by performing a two-step transesterification reaction on oil and tertiary hydroxyalkyl amine at a low temperature in a high vacuum state under specific conditions, and then quaternizing the resultant product. The method of preparing a fabric softener containing an esterquat according to the present invention can reduce the content of unconverted glyceride, glyceryl ester, or a mixture thereof, and can provide a fabric softener with excellent long-term stability.Type: ApplicationFiled: January 30, 2013Publication date: June 6, 2013Applicant: SUNJIN CHEMICAL CO., LTD.Inventor: Sunjin Chemical Co., Ltd.
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Publication number: 20120082708Abstract: The present invention relates to a method of preparing a composite powder comprising a surface treatment layer of sunscreen. The present invention prepares a composite powder comprising a surface treatment layer of sunscreen by a dry process that does not require separate dehydration and drying processes, and thus, the prepared composite powder may be uniformly surface-treated with more quantities of sunscreens compared to a composite powder comprising a surface treatment layer of sunscreen prepared by a conventional wet process, may exhibit remarkably improved sun screen effect, and be useful for a cosmetic composition.Type: ApplicationFiled: September 21, 2011Publication date: April 5, 2012Applicant: SUNJIN CHEMICAL CO., LTD.Inventors: Sung-ho LEE, Jin-kwan PARK, Bou-kun CHOI, Dae-sung BAEG
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Publication number: 20110048284Abstract: The present invention relates to a method for manufacturing modified powder, particularly to a method for dry manufacturing of modified powder comprising the steps of: a) dry mixing powder having hydroxyl group (—OH) at the end and lauroyl lysine in a reactor equipped with an agitator; and, b) agitating the reactor to coat lauroyl lysine on the surface of the powder.Type: ApplicationFiled: September 10, 2009Publication date: March 3, 2011Applicant: SUNJIN CHEMICAL Co., Ltd.Inventors: Jae-Young Choi, Byoung-Chul Kim
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Publication number: 20090053153Abstract: The present invention relates to polymer composite particles containing a sunscreen agent and a manufacturing method thereof, and more particularly, to circular-shaped polymer composite particles which are a hybrid of circular-shaped polymer particles and a sunscreen agent, drastically improve dispersion stability of particles themselves, provide excellent ultraviolet absorption performance and are applicable to cosmetics, and a manufacturing method thereof.Type: ApplicationFiled: October 15, 2007Publication date: February 26, 2009Applicant: SUNJIN CHEMICAL CO., LTD.Inventors: Sung-Ho Lee, Jeong-Hwan Kim, Jang-Ho Park, Sang-Uk Kim
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Publication number: 20090035334Abstract: This invention provides a method for preparing a polymethylmethacrylate spherical bead and in particular, it provides a method for preparing a polymethylmethacrylate spherical bead characterized in that it is prepared by preparing polymethylmethacrylate by polymerizing methyl-methacrylate monomers, evaporating remaining methylmethacrylate monomers by raising temperature up to at least 100° C. after the polymerization reaction, and washing the polymethylmethacrylate with a mixed solvent of ethanol and water and vacuum drying them.Type: ApplicationFiled: August 26, 2005Publication date: February 5, 2009Applicant: SUNJIN CHEMICAL CO., LTD.Inventors: Sun-jae Kim, Hyoung-whee Kim, Suk-woo Shin, Han-song Chu
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Publication number: 20080188574Abstract: This invention provides a disperse system having fine powder-typed inorganic metal oxide dispersed in water and preparing method for the same and more particularly, it provides a method for preparing a disperse system having fine powder-typed inorganic metal oxide dispersed in water characterized in that a) a hydrophobically treated fine powder-typed inorganic metal oxide; b) a sulfosuccinate or sulfosuccinamate or an alkoxylated alcohol dispersant; and c) water are mixed and dispersed by a high-speed bead mill and a disperse system having fine powder-typed inorganic metal oxide dispersed in water prepared by the same. The disperse system having fine powder-typed inorganic metal oxide dispersed in water of the present invention has excellent characteristics in that it has high transparency in the visible ray spectrum, it has excellent UV protection ability when applied to cosmetics, it provides better feelings than oil dispersions, and it has better water-proof property than existing water dispersions.Type: ApplicationFiled: May 21, 2007Publication date: August 7, 2008Applicants: SUNJIN CHEMICAL Co., Ltd., RANCO CO., Ltd.Inventors: Sung-Ho Lee, Woo-Kyu Kang