公开(公告)号：US20210277220A1

公开(公告)日：2021-09-09

申请号：US16334053

申请日：2017-05-30

申请人： LOTTE ADVANCED MATERIALS CO., LTD.

发明人： Yoen Kyoung KIM ,  Cheon Seok YANG ,  Byeong Yeol KIM ,  Seung Yong BAE ,  Bong Jae JEONG ,  Ju Sung KIM

IPC分类号： C08L33/12

摘要： A thermoplastic resin composition of the present invention comprises a rubber-modified vinyl-based graft copolymer, a first aromatic vinyl-based copolymer, a second aromatic vinyl-based copolymer, and a polyalkylene glycol, wherein the first aromatic vinyl-based copolymer is a copolymer of methyl methacrylate, methyl acrylate, an aromatic vinyl-based monomer, and a monomer copolymerizable with the aromatic vinyl-based monomer, the second aromatic vinyl-based copolymer is a copolymer of an aromatic vinyl-based monomer and a monomer copolymerizable with the aromatic vinyl-based monomer, and the weight ratio of methyl methacrylate to methyl acrylate, in the first aromatic vinyl-based copolymer, is approximately 1:0.01 to approximately 1:0.2. The thermoplastic resin composition has excellent discoloration resistance, color, transparency, and the like even after irradiation with ionizing radiation.

公开(公告)号：US20200056008A1

公开(公告)日：2020-02-20

申请号：US16347929

申请日：2017-11-30

申请人： LOTTE ADVANCED MATERIALS CO., LTD.

发明人： Ju Sung KIM ,  You Hyun KIM ,  Yoen Kyoung KIM ,  Kang Yeol PARK ,  Seung Yong BAE ,  Bong Jae JEONG

IPC分类号： C08J9/18 ,  C08J9/228 ,  C08J9/00 ,  C08L25/06 ,  A01N59/16 ,  B29C44/34

摘要： A foaming resin composition of the present invention contains an aromatic vinyl-based resin and zinc oxide, wherein the size ratio (B/A), in which peak A is a 370 nm to 390 nm region and peak B is a 450 nm to 600 nm region, of zinc oxide is approximately 0.01 to approximately 1 when photoluminescence is measured, and the BET surface area thereof is approximately 1 m2/g to approximately 10 m2/g.