By a News Reporter-Staff News Editor at Electronics Newsweekly -- A patent by the inventor Kim, Young Hyo (Uiwang-si, KR), filed on October 22, 2014, was published online on August 16, 2016, according to news reporting originating from Alexandria, Virginia, by VerticalNews correspondents.
Patent number 9416266 is assigned to Samsung SDI Co., Ltd. (Yongin-si, KR).
The following quote was obtained by the news editors from the background information supplied by the inventors: "Acrylonitrile-styrene-acrylate is a thermoplastic resin (hereinafter, referred to as an ASA resin) that has low specific gravity as compared to glass or metal, and has excellent physical properties such as moldability, weather resistance, chemical resistance, thermal stability, and the like. Recently, products made using plastics are rapidly replacing glass or metals in electric and electronic devices, automotive products, construction materials, leisure products, and the like.
"Accordingly, the plastic products should have various physical properties, such as impact strength, weather resistance, molding processability, appearance property, and the like. For example, interior and exterior materials of the product made using a plastic should have good colorability (to implement various colors) and simultaneously have excellent weather resistance. In addition, excellent mechanical and physical properties are needed while having a desired aesthetic appearance after a molding process.
"In order to improve impact resistance in the ASA resin, a styrene-acrylonitrile (SAN) resin and g-ASA can be mixed in an ASA resin composition, wherein a method of increasing a molecular weight of the SAN resin or the content of g-ASA or a method of including a diene-based graft copolymer has been used. The resin composition can have improved impact resistance; however, the composition can also have deteriorated thermal stability, chemical resistance, moldability, appearance property and colorability. That is, it can be difficult to simultaneously improve colorability and mechanical and physical properties due to properties of the resin itself.
"Therefore, there is a need for a thermoplastic resin composition having excellent colorability so as to implement various colors without deteriorating impact resistance, weather resistance, thermal stability, molding processability, and appearance."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventor's summary information for this patent: "An embodiment of the present invention is directed to providing a thermoplastic resin composition that can have excellent impact resistance, weather resistance, and colorability.
"In addition, another embodiment of the present invention is directed to providing a molded product that can have excellent impact resistance, weather resistance, thermal stability, molding processability, and appearance property, and can have a desirable aesthetic appearance, using the thermoplastic resin composition.
"In exemplary embodiments, the present invention provides a thermoplastic resin composition that can have excellent impact resistance and colorability including: an acrylic graft copolymer (A), an aromatic vinyl-vinyl cyanide compound copolymer (B), a polyalkyl(meth)acrylate resin (C), and an acrylic compound-grafted silicon-based impact reinforcing agent (D).
"The thermoplastic resin composition can include the acrylic compound-grafted silicon-based impact reinforcing agent (D) in an amount of about 0.1 to about 3 parts by weight based on about 100 parts by weight of a mixture including about 25 to 50 wt % of the acrylic graft copolymer (A), about 45 to 70 wt % of the aromatic vinyl-vinyl cyanide compound copolymer (B), and about 0.1 to 5 wt % of the polyalkyl(meth)acrylate resin (C).
"The acrylic graft copolymer (A) may have a core-shell structure in which an unsaturated monomer including (meth)acrylate is grafted to a core including an acrylate-based rubber-like polymer to thereby form a shell.
"The acrylate-based rubber-like polymer may have an average particle size of about 100 to about 500 nm.
"The polyalkyl(meth)acrylate resin may have a weight average molecular weight of about 10,000 to about 200,000 g/mol.
"The acrylic compound-grafted silicon-based impact reinforcing agent may include a silicon-based compound as a core and an acrylic compound as a shell.
"A weight ratio of the core to the shell in the acrylic compound-grafted silicon-based impact reinforcing agent may be about 60 to 90: about 10 to 40.
"The acrylic compound-grafted silicon-based impact reinforcing agent may have an average particle size of about 100 to about 1,000 nm.
"The thermoplastic resin composition of claim may further include a (meth)acrylic acid alkyl ester component-containing styrene-based copolymer resin.
"The (meth)acrylic acid alkyl ester component-containing styrene-based copolymer resin may include about 5 to about 50 wt % of a (meth)acrylic acid alkyl ester component.
"A weight mixing ratio of the polyalkyl(meth)acrylate resin to the acrylic compound-grafted silicon-based impact reinforcing agent may be about 2:1 to about 2:4.
"The thermoplastic resin composition may further include at least any one or two or more components selected from a group consisting of an antioxidant, a lubricant, an impact reinforcing agent, a light stabilizer, a dye, a pigment, a flame retardant, a filler, a stabilizer, an antibacterial agent, a release agent, a plasticizer and/or an antistatic agent.
"In another exemplary embodiments, the present invention provides a molded product manufactured by the thermoplastic resin composition as described above.
"Other features and aspects will be apparent from the following detailed description, the drawings, and the claims."
URL and more information on this patent, see: Kim, Young Hyo. Thermoplastic Resin Composition Having Excellent Colorability and Mechanical and Physical Properties. U.S. Patent Number 9416266, filed October 22, 2014, and published online on August 16, 2016. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9416266.PN.&OS=PN/9416266RS=PN/9416266
Keywords for this news article include: Silicon, Styrenes, Acrylates, Acyclic Acids, Benzene Derivatives, Electronic Equipment Companies.
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