Abstract: A zinc-deposited hydrotalcite for a PVC stabilizer includes: a hydrotalcite having a structure represented by the formula of Mg4Al2(OH)12CO3.3H2O; and zinc deposited onto the hydrotacite crystals by using any one method of electrode-position, chloride ion deposition, and plasma deposition.
Abstract: The present invention relates to an additive composition including a counteragent, and more particularly, to an additive composition for preparation of polyolefins, which improve flowability of a nucleating agent and exhibits excellent transparency, by applying a counteragent of a specific structure to a sorbitol nucleating agent which is an additive used in preparation of polyolefins.
Type:
Grant
Filed:
October 30, 2013
Date of Patent:
April 19, 2016
Assignees:
DOOBON INC.
Inventors:
Dae Hee Lee, Hyun-Duk Cho, Young-Guk Kim, Xiao-Xia Wang
Abstract: Provided herein is a flame-retardant polyolefin resin containing a blend which comprises 1-80 wt % of piperazine metal salts or polymers thereof, 10-80.0 wt % of nitrogen-containing synergists or phosphorus/nitrogen retardants, and 1-50 wt % of inorganic compounds, wherein the sum of the components of the blend is 100 wt %.
Type:
Grant
Filed:
December 14, 2011
Date of Patent:
December 29, 2015
Assignees:
DOOBON INC., LOTTE CHEMICAL CORPORATION
Inventors:
Dae Hee Lee, Seong Wook Lee, Sang-Bum Kim, Chang-Gyou Kim, Seung-Dae Ahn, Jong-In Ahn
Abstract: The present invention relates to an additive composition including a counteragent, and more particularly, to an additive composition for preparation of polyolefins, which improve flowability of a nucleating agent and exhibits excellent transparency, by applying a counteragent of a specific structure to a sorbitol nucleating agent which is an additive used in preparation of polyolefins.
Type:
Application
Filed:
October 30, 2013
Publication date:
February 12, 2015
Applicants:
DOOBON INC.
Inventors:
Dae Hee LEE, Hyun-Duk CHO, Young-Guk KIM, Xiao-Xia WANG
Abstract: This invention relates to a partially dehydrated hydrotalcite obtained by heat-treating a hydrotalcite under a specific condition so that its weight is reduced by 1.5 to 5%, which is capable of imparting improved thermoresistance to a synthetic resin.
Abstract: This invention relates to a partially dehydrated hydrotalcite obtained by heat-treating a hydrotalcite under a specific condition so that its weight is reduced by 1.5 to 5%, which is capable of imparting improved thermoresistance to a synthetic resin.
Abstract: An oxide-like hydrotalcite having a certain structure and uniform size can be prepared by a method comprising milling and heat or microwave post-treatment, and it is capable of providing synthetic resins with high heat- and chlorine-resistance.
Type:
Application
Filed:
December 7, 2007
Publication date:
July 29, 2010
Applicant:
DOOBON INC.
Inventors:
DongHo Hyun, Sung Wook Lee, Young-Guk Kim
Abstract: Disclosed is a spandex fiber prepared to be excellent in resistance to both chlorine and heat without affecting the properties of the polyurethane polymer, and manufacturing method thereof. The spandex fiber contains hydrotalcite coated with 0.1 to 10 wt. % of a melamine-based compound. The melamine-based compound includes melamine compounds, phosphor-associated melamine compounds, melamine cyanurate compounds, melamine compounds substituted with an organic compound having a carboxyl group, phosphor-associated melamine compounds substituted with an organic compound having a carboxyl group, or melamine cyanurate compounds substituted with an organic compound having a carboxyl group, which are used alone or in combination. The spandex fiber has a high resistance to both chlorine and heat and is therefore useful for underwear, socks, and particularly, sports apparels such as swimsuit.
Type:
Grant
Filed:
September 24, 2002
Date of Patent:
February 17, 2004
Assignees:
Hyosung Corporation, Doobon Inc.
Inventors:
Byung Su Song, Tae Woo Lee, Ji Won Kim, Seung Won Seo, Dae Hwi Lee