Food container
    21.
    发明授权
    Food container 失效
    食品容器

    公开(公告)号:US5100930A

    公开(公告)日:1992-03-31

    申请号:US544978

    申请日:1990-06-28

    IPC分类号: C08K5/15 C08K5/17 C08K13/02

    CPC分类号: C08K5/17 C08K13/02 C08K5/15

    摘要: Disclosed herein is a food container of a resin composition composed of a polyolefin and an inorganic filler, said resin composition containing (i) a phenolic antioxidant and (ii) a slip agent and/or antistatic agent, said phenolic antioxidant being at least one kind selected from .beta.-(4-hydroxy-3-t-butyl-5-alkylphenyl)propionic acid esters, hindered phenols having an isocyanuric acid ester, 1,3,5-tris(3,5-di-t-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, specific phenol compounds, and 6-hydroxychroman compounds. The food container has a low level of offensive odors and discoloration.

    Inorganic filler containing polyolefin composition
    22.
    发明授权
    Inorganic filler containing polyolefin composition 失效
    含有聚烯烃组合物的无机填料

    公开(公告)号:US5086099A

    公开(公告)日:1992-02-04

    申请号:US606940

    申请日:1990-10-31

    IPC分类号: C08K5/1575 C08K5/20

    CPC分类号: C08K5/1575 C08K5/20

    摘要: An inorganic filler-containing polyolefin composition which comprises100 parts by weight of a polyolefin,1-100 parts by weight of an inorganic filler,0.01-1.0 part by weight of a phenolic antioxidant represented by the general formula (I) shown below, andat least one compound selected from the group consisting of the compounds represented by the general formulas (II) to (IV) shown below, and optionally 0.01-1.0 part by weight of a sulfur antioxidant and/or 0.01-2.0 parts by weight of a light stabilizer. ##STR1## wherein R.sub.1 represents an alkyl group of 1-3 carbon atoms,R.sub.2 --CO--NH--(CH.sub.2).sub.n --HN--CO--R.sub.2 (II) wherein R.sub.2 represents an alkyl group or an alkenyl group of 5-21 carbon atoms, and n is an integer of 1 to 6.R.sub.3 --CONH.sub.2 (III) wherein R.sub.3 represents an alkyl group of an alkenyl group of 5-21 carbon atoms, ##STR2## wherein R.sub.4 represents an alkyl group, an alkenyl group or an acyl group (R'--CO) of 8-18 carbon atoms, m and n are integers which meet m+n=2 to 10, R' represents an aliphatic carbon chain which may be saturated or unsaturated, and R.sub.5 represents an alkyl group or an alkenyl group of 7-17 carbon atoms.Excellent thermal-oxidation stability and/or light stability are obtained.

    Inorganic filler containing polyolefin composition
    23.
    发明授权
    Inorganic filler containing polyolefin composition 失效
    含有无机填料的聚烯烃组合物

    公开(公告)号:US4985480A

    公开(公告)日:1991-01-15

    申请号:US348418

    申请日:1989-05-08

    IPC分类号: C08K5/1575 C08K5/20

    CPC分类号: C08K5/1575 C08K5/20

    摘要: An inorganic filler-containing polyolefin composition which comprises100 parts by weight of a polyolefin,1-100 parts by weight of an inorganic filler.0.01-1.0 part by weight of a phenolic antioxidant represented by the general formula (I) shown below, andat least one compound selected from the group consisting of the compounds represented by the general formulas (II) to (IV) shown below, and optionally 0.01-1.0 part by weight of a sulfur antioxidant and/or 0.01-2.0 parts by weight of a light stabilizer. ##STR1## wherein R.sub.1 represents an alkyl group of 1-3 carbon atoms,R.sub.2 --CO--NH--(CH.sub.2).sub.n --HN--CO--R.sub.2 (II) wherein R.sub.2 represents an alkyl group or an alkenyl group of 5-21 carbon atoms, and n is an integer of 1 to 6.R.sub.3 --COHN.sub.2 (III) wherein R.sub.3 represents an alkyl group or an alkenyl group of 5-21 carbon atoms. ##STR2## wherein R.sub.4 represents an alkyl group, an alkenyl group or an acyl group (R'-CO) of 8-18 carbon atoms, m and n are integers which meet m+n=2 to 10, R' represents an aliphatic carbon chain which may be saturated or unsaturated, and R.sub.5 represents an alkyl group or an alkenyl group of 7-17 carbon atoms.Excellent thermal-oxidation stability and/or light stability are obtained.

    Process for producing propylene block copolymers
    25.
    发明授权
    Process for producing propylene block copolymers 失效
    制备丙烯嵌段共聚物的方法

    公开(公告)号:US4433110A

    公开(公告)日:1984-02-21

    申请号:US255005

    申请日:1981-04-17

    IPC分类号: C08F297/08

    CPC分类号: C08F297/08 Y10S526/916

    摘要: A propylene block copolymer produced by polymerizing propylene, ethylene and an .alpha.-olefin having 4 to 8 carbon atoms in two stages with a Zieglar-Natta catalyst by a process which comprises (A) supplying propylene and ethylene in the first stage and propylene and the .alpha.-olefin in the second stage, or (B) supplying propylene and the .alpha.-olefin in the first stage and propylene and ethylene in the second stage, to the polymerization system, wherein the amounts of propylene and ethylene supplied in the first stage of (A) or in the second stage of (B) are 90 to 99 wt % and 10 to 1 wt % based on the total amount of propylene and ethylene supplied in the first stage of (A) or in the second stage of (B), respectively, the amounts of propylene and the .alpha.-olefin supplied in the second stage of (A) or in the first stage of (B) are 60 to 98 wt % and 40 to 2 wt % based on the total amount of propylene and the .alpha.-olefin supplied in the second stage of (A) or in the first stage of (B), respectively, and the amounts of copolymers formed in the first and second stages are 20 to 90 wt % and 80 to 10 wt % based on the final block copolymer, respectively.

    摘要翻译: 通过包括(A)在第一阶段中供应丙烯和乙烯的方法,用齐格列 - 纳塔催化剂将丙烯,乙烯和具有4至8个碳原子的碳原子的α-烯烃分两步制备的丙烯嵌段共聚物,其中丙烯和 第二阶段中的α-烯烃或(B)将第一阶段中的丙烯和α-烯烃和第二阶段中的丙烯和乙烯供应到聚合体系中,其中在第一阶段中供应的丙烯和乙烯的量 (A)或(B)的第二阶段中(A)或(B)的第二阶段中的丙烯和乙烯的总量为90〜99重量%,10〜1重量% )在(A)或第(B)的第一阶段中供应的丙烯和α-烯烃的量分别为基于丙烯总量的60至98重量%和40至2重量% 和在(A)或第一阶段的第二阶段中提供的α-烯烃 (B),第一和第二阶段中形成的共聚物的量分别为最终嵌段共聚物的20〜90重量%和80〜10重量%。

    Stabilized polyolefin composition
    26.
    发明授权
    Stabilized polyolefin composition 失效
    稳定的聚烯烃组合物

    公开(公告)号:US4963605A

    公开(公告)日:1990-10-16

    申请号:US324538

    申请日:1989-03-16

    IPC分类号: C08K5/00 C08K5/1575 C08K5/378

    CPC分类号: C08K5/1575 C08K5/00 C08K5/378

    摘要: The invention relates to a stabilized polyolefin composition, which composition is stabilized against deterioration caused by contact with heavy metals and improved in coloration properties. This is achieved by blending a polyolefin with:(A) a phenolic compound represented by the formula (I), ##STR1## wherein R.sub.1 represents a C.sub.1 -C.sub.3 alkyl group, (B) a metal deactivator having one or more ##STR2## groups in the side chain, and (C) a sulfur-containing compound represented by the formula (II-1), (II-2), (II-3) or (II-4): ##STR3## wherein R.sub.2 represents a C.sub.4 -C.sub.20 alkyl group, ##STR4## wherein R.sub.3 represents a C.sub.4 -C.sub.20 alkyl group, ##STR5## wherein R.sub.4 represents a C.sub.3 -C.sub.18 alkyl group, and R.sub.5 and R.sub.6 independently represent a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group, ##STR6## wherein R.sub.7 represents a C.sub.3 -C.sub.18 alkyl group.