HIGH CLARITY AND DUCTILE MOLDING COMPOSITION COMPRISING A SMMA COPOLYMER AND A SBC-BLOCK COPOLYMER

    公开(公告)号:WO2022263445A1

    公开(公告)日:2022-12-22

    申请号:PCT/EP2022/066170

    申请日:2022-06-14

    IPC分类号: C08L25/14 C08L33/12 C08L53/02

    摘要: High clarity and ductile molding composition comprising: (a) 71 to 90 wt.-% random copolymer made from 44 to 64 wt.-% vinylaromatic monomer and 36 to 56 wt.-%,methyl methacrylate; (b) 10 to 29 wt vinylaromatic-diene block copolymer comprising at least two hard blocks S made from vinylaromatic monomers and at least one soft block B made from dienes and/or at least one soft block B/S made from dienes and vinylaromatic monomers; where the proportion of the diene is from 47 to 67 wt.-%; and (c) 0 to 5 wt.-% additives and/or processing aids (c), have high hardness, heat resistance, and stiffness and can be used for home appliances.

    高耐化学品 PC/ABS 复合材料及其制备方法

    公开(公告)号:WO2022141602A1

    公开(公告)日:2022-07-07

    申请号:PCT/CN2020/142582

    申请日:2020-12-31

    摘要: 本发明提供了一种高耐化学品性的PC/ABS复合材料及其制备方法;所述复合材料包括以下重量百分数计的各组分:聚碳酸酯60~85%;ABS 15~40% ;相容剂0.5~5%;流变改性剂3~10%。所述制备方法包括以下步骤:将原料中各组分按一定比例在室温下进行混合后,通过双螺杆进行熔融挤出,制备了一种易加工、力学性能优异、高耐化学品性的PC/ABS复合材料及其制备方法。所制备得到复合材料力学性能优异,易于加工,同时保持了优良的耐化学品性,制品外观优良。

    二軸延伸シートおよびその成形品

    公开(公告)号:WO2021260971A1

    公开(公告)日:2021-12-30

    申请号:PCT/JP2020/045622

    申请日:2020-12-08

    摘要: 靭性を保持しつつ、耐電子レンジ加熱性が改善されたスチレン系樹脂組成物からなる二軸延伸シートとその成形品を提供する。スチレン-メタクリル酸共重合体(A)とスチレン-ブタジエン共重合体(B)とを含有するスチレン系樹脂組成物からなる二軸延伸シートであって、前記スチレン系樹脂組成物中のブタジエン単量体単位の含有量が0.2~2.5質量%であり、縦方向と横方向の配向緩和応力がいずれも0.10MPa以上0.50MPa未満の範囲である二軸延伸シート、およびその成形品である。

    光学用スチレン系樹脂組成物、導光板及びエッジライト型面光源ユニット

    公开(公告)号:WO2021199501A1

    公开(公告)日:2021-10-07

    申请号:PCT/JP2020/045195

    申请日:2020-12-04

    发明人: 山口 泰生

    摘要: 色相、色相安定性、押出安定性、寸法安定性、耐湿熱白化性及び強度を同時に満たす導光板用スチレン系樹脂組成物を提供する。 本発明によれば、スチレン系単量体単位51~99質量%と(メタ)アクリル酸エステル系単量体単位1~49質量%を含む共重合体であるスチレン系樹脂(A)と、酸化防止剤(B)を含有する光学用スチレン系樹脂組成物であって、前記酸化防止剤(B)は、リン系酸化防止剤(B-1)、フェノール系酸化防止剤(B-2)、及びリン・フェノール系酸化防止剤(B-3)のうち少なくとも1種を含み、前記スチレン系樹脂(A)100質量部に対して、前記リン系酸化防止剤(B-1)と前記リン・フェノール系酸化防止剤(B-3)を合計で0.1~0.5質量部、前記フェノール系酸化防止剤(B-2)と前記リン・フェノール系酸化防止剤(B-3)を合計で0.01~0.5質量部、含有する、光学用スチレン系樹脂組成物が提供される。

    CHAIN EXTENDED OR BRANCHED COPOLYMERS OF VINYLIDENE AROMATIC MONOMER AND UNSATURATED COMPOUNDS WITH NUCLEOPHILIC GROUPS

    公开(公告)号:WO2020115022A1

    公开(公告)日:2020-06-11

    申请号:PCT/EP2019/083439

    申请日:2019-12-03

    摘要: Disclosed are such co-polymers of vinylidene substituted aromatic monomers and unsaturated compounds containing nucleophilic groups chain extended by a copolymer of one or more vinylidene aromatic monomers and one or more unsaturated compounds having pendant electrophilic groups which copolymerize with the one or more vinylidene aromatic monomers. Disclosed are compositions comprising vinylidene substituted aromatic monomers and unsaturated compounds containing nucleophilic groups and a copolymer of one or more vinylidene aromatic monomers and one or more unsaturated compounds having pendant electrophilic groups, which may optionally, contain salts of alkaline earth metals, alkali metals, transition metals, post transition metals or metalloids. Disclosed are methods of preparing such chain-extended and/or branched copolymers.

    열가소성 수지 조성물
    8.
    发明申请

    公开(公告)号:WO2020101332A1

    公开(公告)日:2020-05-22

    申请号:PCT/KR2019/015387

    申请日:2019-11-13

    摘要: 본 발명은 평균입경이 50.0 내지 90.0 ㎚인 아크릴계 고무질 중합체에 방향족 비닐계 단량체 및 비닐 시안계 단량체를 그라프트 중합한 그라프트 공중합체; C 1 내지 C 3 의 알킬 (메트)아크릴레이트계 단량체 단위, 방향족 비닐계 단량체 단위 및 비닐 시안계 단량체 단위를 포함하는 매트릭스 공중합체; 및 C 1 내지 C 3 의 알킬 (메트)아크릴레이트계 단량체 단위를 포함하는 중합체를 포함하는 첨가제를 포함하는 열가소성 수지 조성물에 관한 것으로서, 상세하게는 기본 물성이 우수하면서, 신율, 가공성, 내후성, 착색성, 경도, 내화학성, 내스크래치성, 백화 현상, 표면 광택, 외관 품질이 개선된 열가소성 수지 조성물에 관한 것이다.

    BLENDS OF STYRENE-BUTADIENE CO-POLYMERS (SBC) WITH RANDOM BLOCKS AND SMMA

    公开(公告)号:WO2018091513A1

    公开(公告)日:2018-05-24

    申请号:PCT/EP2017/079291

    申请日:2017-11-15

    IPC分类号: C08L25/14 C08L53/02

    摘要: Polymer composition comprising (a) 33 to 52 wt.-% star-shaped block copolymers (a) comprising terminal vinylaromatic polymer blocks S 1 and S 2 , and random styrene/butadiene copolymer blocks (B/S); and (b) 48 to 67 wt.-% SMMA copolymers (b). Moldings and shaped articles produced thereof have a high clarity and toughness and can be used in the household, appliance and healthcare sector.