JPH03259940A - Polypropylene composition for food container - Google Patents
Polypropylene composition for food containerInfo
- Publication number
- JPH03259940A JPH03259940A JP5666390A JP5666390A JPH03259940A JP H03259940 A JPH03259940 A JP H03259940A JP 5666390 A JP5666390 A JP 5666390A JP 5666390 A JP5666390 A JP 5666390A JP H03259940 A JPH03259940 A JP H03259940A
- Authority
- JP
- Japan
- Prior art keywords
- polypropylene composition
- polypropylene resin
- container
- weight
- phosphite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- -1 Polypropylene Polymers 0.000 title claims abstract description 44
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 37
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 37
- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 235000013305 food Nutrition 0.000 title claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 25
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 150000001412 amines Chemical class 0.000 claims abstract description 13
- 239000004611 light stabiliser Substances 0.000 claims abstract description 12
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 abstract description 3
- SXXILWLQSQDLDL-UHFFFAOYSA-N bis(8-methylnonyl) phenyl phosphite Chemical compound CC(C)CCCCCCCOP(OCCCCCCCC(C)C)OC1=CC=CC=C1 SXXILWLQSQDLDL-UHFFFAOYSA-N 0.000 abstract description 2
- STEYNUVPFMIUOY-UHFFFAOYSA-N 4-Hydroxy-1-(2-hydroxyethyl)-2,2,6,6-tetramethylpiperidine Chemical compound CC1(C)CC(O)CC(C)(C)N1CCO STEYNUVPFMIUOY-UHFFFAOYSA-N 0.000 abstract 1
- MUXOBHXGJLMRAB-UHFFFAOYSA-N Dimethyl succinate Chemical group COC(=O)CCC(=O)OC MUXOBHXGJLMRAB-UHFFFAOYSA-N 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 15
- 238000004040 coloring Methods 0.000 description 15
- 239000011574 phosphorus Substances 0.000 description 15
- 229910052698 phosphorus Inorganic materials 0.000 description 15
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 14
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 14
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 14
- 239000008188 pellet Substances 0.000 description 12
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 6
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 5
- 239000002530 phenolic antioxidant Substances 0.000 description 5
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 4
- 235000013539 calcium stearate Nutrition 0.000 description 4
- 239000008116 calcium stearate Substances 0.000 description 4
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 4
- 150000002826 nitrites Chemical class 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- PZRWFKGUFWPFID-UHFFFAOYSA-N 3,9-dioctadecoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound C1OP(OCCCCCCCCCCCCCCCCCC)OCC21COP(OCCCCCCCCCCCCCCCCCC)OC2 PZRWFKGUFWPFID-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000001841 imino group Chemical group [H]N=* 0.000 description 2
- 229920005604 random copolymer Polymers 0.000 description 2
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 2
- ABFCPWCUXLLRSC-UHFFFAOYSA-N 1,1-bis(2,4-ditert-butylphenyl)-2,2-bis(hydroxymethyl)propane-1,3-diol Chemical compound C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C(O)(C(CO)(CO)CO)C1=C(C=C(C=C1)C(C)(C)C)C(C)(C)C ABFCPWCUXLLRSC-UHFFFAOYSA-N 0.000 description 1
- FEXBEKLLSUWSIM-UHFFFAOYSA-N 2-Butyl-4-methylphenol Chemical compound CCCCC1=CC(C)=CC=C1O FEXBEKLLSUWSIM-UHFFFAOYSA-N 0.000 description 1
- 125000004203 4-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- ADRNSOYXKABLGT-UHFFFAOYSA-N 8-methylnonyl diphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OCCCCCCCC(C)C)OC1=CC=CC=C1 ADRNSOYXKABLGT-UHFFFAOYSA-N 0.000 description 1
- ZZEDNZHVUVFGPQ-UHFFFAOYSA-N CCCCCCCCCCCCCP(O)(O)(O)CCCCCCCCCCCCCC1=CC(C)=CC=C1C(C)(C)C Chemical compound CCCCCCCCCCCCCP(O)(O)(O)CCCCCCCCCCCCCC1=CC(C)=CC=C1C(C)(C)C ZZEDNZHVUVFGPQ-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 244000000626 Daucus carota Species 0.000 description 1
- 235000002767 Daucus carota Nutrition 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 240000009088 Fragaria x ananassa Species 0.000 description 1
- QAEPIAHUOVJOOM-UHFFFAOYSA-N OP(O)OP(O)O.C(CCCCCCCC)C1=C(C=CC=C1)C(O)(C(CO)(CO)CO)C1=C(C=CC=C1)CCCCCCCCC Chemical compound OP(O)OP(O)O.C(CCCCCCCC)C1=C(C=CC=C1)C(O)(C(CO)(CO)CO)C1=C(C=CC=C1)CCCCCCCCC QAEPIAHUOVJOOM-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 235000009337 Spinacia oleracea Nutrition 0.000 description 1
- 244000300264 Spinacia oleracea Species 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- GGAUUQHSCNMCAU-UHFFFAOYSA-N butane-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)CC(C(O)=O)C(C(O)=O)CC(O)=O GGAUUQHSCNMCAU-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 125000004464 hydroxyphenyl group Chemical group 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- MFPCPCHVMQLDJN-UHFFFAOYSA-N phenyl ditridecyl phosphite Chemical compound CCCCCCCCCCCCCOP(OCCCCCCCCCCCCC)OC1=CC=CC=C1 MFPCPCHVMQLDJN-UHFFFAOYSA-N 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 235000021018 plums Nutrition 0.000 description 1
- 229920005673 polypropylene based resin Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- 235000021012 strawberries Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- JZNDMMGBXUYFNQ-UHFFFAOYSA-N tris(dodecylsulfanyl)phosphane Chemical compound CCCCCCCCCCCCSP(SCCCCCCCCCCCC)SCCCCCCCCCCCC JZNDMMGBXUYFNQ-UHFFFAOYSA-N 0.000 description 1
- PZMFITAWSPYPDV-UHFFFAOYSA-N undecane-2,4-dione Chemical compound CCCCCCCC(=O)CC(C)=O PZMFITAWSPYPDV-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、野菜や果物の汁による着色の少ない、食品容
器用ポリプロピレン組成物に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a polypropylene composition for food containers that is less colored by the juices of vegetables and fruits.
ポリプロピレン系樹脂は、耐熱性、耐薬品性にすぐれ、
しかも無毒なため、各種食品容器に用いられている。Polypropylene resin has excellent heat resistance and chemical resistance.
Moreover, it is non-toxic, so it is used in various food containers.
しかし、これらの食品容器にホウレンソウや人参、梅干
し、苺等の野菜類や果物類を入れておくと、野菜や果物
に含まれている特定の成分や天然色素によって、容器が
着色するという問題があった。特に、わが国では、これ
らの容器に白菜の漬物を入れて保存することが多いこと
から、白菜による着色が最も問題になっていた。この着
色は衛生上は問題の無いものであるが、外観を損なうも
のなので、容器の商品価値の低下に繋がる。However, if you put vegetables and fruits such as spinach, carrots, pickled plums, and strawberries in these food containers, there is a problem that the containers will become colored due to the specific ingredients and natural pigments contained in the vegetables and fruits. there were. In particular, in Japan, because pickled Chinese cabbage is often stored in these containers, coloring caused by the Chinese cabbage has been a major problem. Although this coloration poses no problem from a sanitary standpoint, it impairs the appearance, leading to a decrease in the commercial value of the container.
ところで、白菜には農薬や肥料に由来する亜硝酸塩が含
まれていることが、一般に知られている。By the way, it is generally known that Chinese cabbage contains nitrites derived from pesticides and fertilizers.
又、白菜は、腐敗の進行とともにｐＨが低下し酸性が強
くなる。Moreover, as the rottenness progresses, the pH of Chinese cabbage decreases and becomes more acidic.
従来、ポリプロピレン＃Ｊｌｒｆ７．物にはフェノール
系酸化防止剤が一般的に用いられていた。本発明者らは
、これが白菜による容器の着色の原因であるということ
を見出した。即ち、ポリプロピレン組成物中のフェノー
ル系酸化防止剤が、白菜に含まれている亜硝酸塩と酸性
下で反応して発色し、これが容器の着色の原因になるの
である。Conventionally, polypropylene #Jlrf7. Phenolic antioxidants were commonly used. The inventors have discovered that this is the cause of the coloring of the container due to Chinese cabbage. That is, the phenolic antioxidant in the polypropylene composition reacts with the nitrites contained in Chinese cabbage under acidic conditions and develops color, which causes the container to become discolored.
本発明は、上記の知見に基づいたものである。The present invention is based on the above findings.
即ち、ポリプロピレン組成物において、酸化防止剤や光
安定剤に亜硝酸塩で発色しないタイプのものを使用する
ことにより、白菜による着色を防止するというものであ
る。That is, in the polypropylene composition, coloring caused by Chinese cabbage is prevented by using antioxidants and light stabilizers that do not develop color due to nitrites.
本発明は、
（ａ）ポリプロピレン系樹脂・・・１００重量部（ｂ）
有機燐系酸化防止剤
・・・０．０１〜０．５重量部
（ｃ）ヒンダードアミン系光安定剤
・・・・・０〜２．０重量部
よりなる食品容器用ポリプロピレン組成物に関する。The present invention includes (a) polypropylene resin...100 parts by weight (b)
The present invention relates to a polypropylene composition for food containers comprising an organic phosphorus antioxidant: 0.01 to 0.5 parts by weight (c) a hindered amine light stabilizer: 0 to 2.0 parts by weight.
本発明の食品容器用ポリプロピレン組成物においては、
有機燐系酸化防止剤とヒンダードアミン系光安定剤を用
いている。有機燐系酸化防止剤、及びヒンダードアミン
系光安定剤のいづれも、亜硝酸塩で発色する性質は殆ど
無い。このため、白菜による着色は殆ど起こらないので
ある。In the polypropylene composition for food containers of the present invention,
Organic phosphorus antioxidants and hindered amine light stabilizers are used. Both organic phosphorus antioxidants and hindered amine light stabilizers have almost no property of developing color with nitrites. For this reason, almost no coloring occurs due to Chinese cabbage.
本発明の食品容器用ポリプロピレン組成物中の、有機燐
系酸化防止剤、及びヒンダードアミン系光安定剤の割合
は次のとおりである。即ち、ポリプロピレン系樹脂１０
０重量部に対し、有機燐系酸化防止剤は０．Ｏ１〜０．
５重量部、ヒンダードアミン系酸化防止剤は０〜２．０
重量部の範囲である。The proportions of the organic phosphorus antioxidant and the hindered amine light stabilizer in the polypropylene composition for food containers of the present invention are as follows. That is, polypropylene resin 10
0 part by weight, the organic phosphorus antioxidant is 0. O1~0.
5 parts by weight, hindered amine antioxidant 0-2.0
Parts by weight range.
特に好ましい範囲は、有機燐系酸化防止剤が０゜０５〜
０．２重量部、ヒンダードアミン系光安定剤か゛、０〜
０．５重量部である。A particularly preferable range is that the organic phosphorus antioxidant is 0°05 to
0.2 parts by weight, hindered amine light stabilizer, 0~
It is 0.5 part by weight.
有機燐系酸化防止剤の割合が０．０１重量部より少ない
とポリプロピレン系樹脂の酸化劣化が著しく、０．５重
量部より多い場合はポリプロピレン組成物のコストが高
くなるだけである。又、ヒンダードアミン系酸化防止剤
の割合が２．０重量部より多い場合も、コスト高を招く
だけである。If the proportion of the organic phosphorus antioxidant is less than 0.01 part by weight, the oxidative deterioration of the polypropylene resin will be significant, and if it is more than 0.5 part by weight, the cost of the polypropylene composition will only increase. Furthermore, if the proportion of the hindered amine antioxidant is more than 2.0 parts by weight, this only increases the cost.
本発明の食品容器用ポリプロピレン組成物中には、更に
フェノール系酸化防止剤を含んでいてもよいが、その量
は１ｏｏｐｐｍ以下でなくてはならない。フェノール系
酸化防止剤の含有量が１１００ｐｐを超えると、白菜に
よる着色が目立つようになるからである。The polypropylene composition for food containers of the present invention may further contain a phenolic antioxidant, but the amount must be 1 ooppm or less. This is because if the content of the phenolic antioxidant exceeds 1100 pp, the coloring caused by Chinese cabbage becomes noticeable.
以下、本発明の食品容器用ポリプロピレン組成物の構ｔ
２成分につき、詳しく説明する。Hereinafter, the structure of the polypropylene composition for food containers of the present invention will be explained.
The two components will be explained in detail.
ポリプロピレン系樹脂としては、ポリプロピレンホモポ
リマーやエチレン・プロピレンランダムコポリマー、エ
チレン・プロピレンブロックコポリマー、エチレン・プ
ロピレンランダム・ポストエチレン・プロピレンブロッ
クコポリマー等のエチレン・プロピレンコポリマー、或
いはエチレン・プロピレン・α−オレフィンコポリマー
等、各種のものが用いられる。これらのポリプロピレン
系樹脂としては、２３０ ”ＣでのＭＦＲが０．５〜５
０ｇ／１０分の範囲のものが特に好ましい。Examples of polypropylene resins include ethylene/propylene copolymers such as polypropylene homopolymer, ethylene/propylene random copolymer, ethylene/propylene block copolymer, ethylene/propylene random/post ethylene/propylene block copolymer, or ethylene/propylene/α-olefin copolymer. , various types are used. These polypropylene resins have an MFR of 0.5 to 5 at 230"C.
Particularly preferred is one in the range of 0 g/10 minutes.
有機燐系酸化防止剤としては、例えば、■フエニルジイ
ソデシルホスファイト、■ジフェニルイソオクチルホス
ファイト、■ジフェニルイソデシルホスファイト、■ト
リフェニルホスファイト、
■トリスノニルフェニルホスファイト、■トリス（モノ
＆ジ混合ノニルフェニル）ボスファイト、
■トリス（２，４−ジ−ｔ−ブチルフェニル）ホスファ
イト、
■ジステアリルペンタエリスリトールジホスファイ ト
、
■ビス（２，４−ジ−ｔ−ブチルフェニル）ペンタエリ
スリトールジホスファイト、
［相］ビス（ノニルフェニル）ペンタエリスリトールジ
ホスファイト、
■４．４゛−イソプロピリデンジフェノールアルキルホ
スファイト、
＠４．４“−ブチリデンビス（３−メチル−６ｔ−ブチ
ルフェニル−ジ−トリデシルホスファイト）、
＠１，１．３−）リス（２−メチル−４−ジ−トリデシ
ルホスファイト−５−ｔ−ブチルフェニル）ブタン、
■テトラキス（２，４−ジ−ｔ−ブチルフェニル）−４
，４°−ビフェニレンジホスファイト、［相］３，４，
５．６−ジベンシー１．２−オキサホスファン−２−オ
キシド、
［相］トリラウリルトリチオホスファイト、＠トリス（
イソデシル）ホスファイト、■トリス（トシデシル）ホ
スファイト、［相］フエニルジ（トリデシル）ホスファ
イト、＠ジフェニルトリデシルホスファイト、等が用い
られる。但し、○Ｈ基を有するものは好ましくない。Examples of organic phosphorus antioxidants include ■ phenyl diisodecyl phosphite, ■ diphenyl isooctyl phosphite, ■ diphenyl isodecyl phosphite, ■ triphenyl phosphite, ■ trisnonylphenyl phosphite, and ■ tris(mono& dimixed nonylphenyl) bosphite, ■tris(2,4-di-t-butylphenyl) phosphite, ■distearylpentaerythritol diphosphite, ■bis(2,4-di-t-butylphenyl)penta Erythritol diphosphite, [Phase] bis(nonylphenyl)pentaerythritol diphosphite, ■4.4"-isopropylidene diphenol alkyl phosphite, @4.4"-butylidene bis(3-methyl-6t-butylphenyl- di-tridecylphosphite), @1,1.3-)lis(2-methyl-4-di-tridecylphosphite-5-t-butylphenyl)butane, ■tetrakis(2,4-di-t -butylphenyl)-4
, 4°-biphenylene diphosphite, [phase] 3,4,
5.6-dibency 1.2-oxaphosphane-2-oxide, [phase] trilauryltrithiophosphite, @tris(
Isodecyl) phosphite, (1) tris(tosidecyl) phosphite, [phase] phenyl di(tridecyl) phosphite, @diphenyltridecyl phosphite, etc. are used. However, those having a ○H group are not preferred.
ヒンダードアミン系光安定剤としては、例えば、■琥珀
酸ジメチルー１−（２−ヒドロキシエチル）−４−ヒド
ロキシ−２，２，６，６−テトラメチルビベリジン重縮
合物、
■１，２，３．４−ブタンテトラカルボン酸−２゜２．
６．６−テトラメチル−４−ピペリジツールトリデシル
アルコール縮音物
■１，２，３．４−ブタンテトラカルボン酸−１゜２．
２，６．６−テトラメチル−４−ピペリジツールトリデ
シルアルコール縮合物
■ポリ ［［（６−（１，１，３，３，−テトラメチル
ブチル）イミノ−１，３，５−トリアジン−２，４−ジ
イル］（（２，２，６，６−テトラメチル−４−ピペリ
ジル）イミノ）］ヘキサメチレン（（２，２，６，６−
テトラメチル−４−ピペリジル）イミノ）］、
■２−（３，５−ジ−ｔ−ブチル−４−ヒドロキシベン
ジル）−２−ｎブチルマロン酸ビス（ｌ。Examples of hindered amine light stabilizers include: (1) dimethyl succinate-1-(2-hydroxyethyl)-4-hydroxy-2,2,6,6-tetramethylbiveridine polycondensate; (2) 1,2,3 .4-Butanetetracarboxylic acid-2゜2.
6.6-Tetramethyl-4-piperiditultridecyl alcohol condensate ■1,2,3.4-butanetetracarboxylic acid-1°2.
2,6.6-tetramethyl-4-piperidithurtridecyl alcohol condensate ■Poly [[(6-(1,1,3,3,-tetramethylbutyl)imino-1,3,5-triazine- 2,4-diyl]((2,2,6,6-tetramethyl-4-piperidyl)imino)]hexamethylene((2,2,6,6-
2-(3,5-di-t-butyl-4-hydroxybenzyl)-2-n-butylmalonic acid bis(l.tetramethyl-4-piperidyl)imino)];
２．２，６，６． ペンタメチル−４−ピペリジル）、
■テトラキス（２，２，６，６−テトラメチル４−ピペ
リジル）１，２，３．４−ブタンテトラカルボキシレー
ト、
■テトラキス（１，２，２，６，６−テトラメチル−４
−ピペリジル）１，２，３．４−ブタンテトラカルボキ
シレート、
■ビス（１，２，２，６，６−ベンタメチルー４−ピペ
リジル）セバケート、
■１− （２−（３−（３，５−ジ−ｔ−ブチル４−ヒ
ドロキシフェニル）プロピオニルオキシフエチル）−４
−（３−（３，５−ジ−ｔ−ブチル−４−ヒドロキシフ
ェニル）プロピオニルオキシ）−２，２，６，６−テト
ラメチルビペリジン、［相］８−ベンジル−７，７，９
，９−テトラメチル−３−オクチル−１，３，８−トリ
アザスピロ〔４゜５］ウンデカン−２，４−ジオン、
等が例として挙げられる。2.2,6,6. pentamethyl-4-piperidyl), ■tetrakis(2,2,6,6-tetramethyl4-piperidyl)1,2,3.4-butanetetracarboxylate, ■tetrakis(1,2,2,6,6- Tetramethyl-4
-piperidyl) 1,2,3.4-butanetetracarboxylate, ■bis(1,2,2,6,6-bentamethyl-4-piperidyl)sebacate, ■1-(2-(3-(3,5- di-t-butyl (4-hydroxyphenyl)propionyloxyphethyl)-4
-(3-(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy)-2,2,6,6-tetramethylbiperidine, [phase] 8-benzyl-7,7,9
, 9-tetramethyl-3-octyl-1,3,8-triazaspiro[4°5]undecane-2,4-dione, and the like.
以下に本発明の実施例を示す。 Examples of the present invention are shown below.
１旌皿上
（１）ポリプロピレン組成物のサンプル容器の調製、ポ
リプロピレン系樹脂１００部に、ステアリン酸カルシウ
ム０．０１部、及び有機燐系酸化防止剤を０．１部配合
した。ポリプロピレン系樹脂としては、ＭＦＲ９，０ｇ
／１０分、エチレン含有量３．０％のエチレン・プロピ
レンランダムコポリマーを用い、有機燐系酸化防止剤と
してトリス（２，４ジーｔ−ブチルフェニル）フォスフ
ァイトを用いた。1 On a Dish (1) Preparation of a sample container of polypropylene composition: 0.01 part of calcium stearate and 0.1 part of an organic phosphorus antioxidant were blended into 100 parts of a polypropylene resin. As polypropylene resin, MFR9.0g
/10 minutes, an ethylene/propylene random copolymer with an ethylene content of 3.0% was used, and tris(2,4-di-t-butylphenyl)phosphite was used as an organic phosphorus antioxidant.
これらを均一に混合後、押出機を用いて２２０°Ｃの温
度でペレット化し、ポリプロピレン組成物のペレットを
得た。このペレットを、樹脂温度２３０°Ｃで射出成形
機にて、長さ１００、幅５（２）、深さ５ｃｍの容器に
成形し、サンプル容器とした。After uniformly mixing these, they were pelletized using an extruder at a temperature of 220°C to obtain pellets of a polypropylene composition. This pellet was molded into a sample container with a length of 100 cm, a width of 5 (2) cm, and a depth of 5 cm using an injection molding machine at a resin temperature of 230°C.
（２）着色テスト、
市販の白菜を細かく刻み、ミキサーで白菜ジュースにし
た。この白菜ジュースを上記のサンプル容器に入れ、４
０℃で４日間放置し、着色の有無を調べた。その結果、
容器の着色は殆ど見られなかった。(2) Coloring test: Commercially available Chinese cabbage was finely chopped and made into Chinese cabbage juice using a blender. Pour this Chinese cabbage juice into the sample container mentioned above, and
The sample was left at 0° C. for 4 days, and the presence or absence of coloration was examined. the result,
Almost no coloring was observed on the container.
夫施狙Ｌ
ポリプロピレン系樹脂１００部に、ステアリン酸カルシ
ウムを０．０１部、有機燐系酸化防止剤を０、１部、及
びヒンダードアミン系光安定剤を０．１重量部を配合し
た。ポリプロピレン系樹脂及び有機燐系酸化防止剤には
、実施例１と同様のものを用いた。そして、ヒンダード
アミン系光安定剤として琥珀酸ジメチル−１−（２−ヒ
ドロキシエチル）−４−ヒドロキシ−２，２，６，６−
テトラメチルビベリジン重縮合物を用いた。To 100 parts of a polypropylene resin, 0.01 part of calcium stearate, 0.1 part of an organic phosphorus antioxidant, and 0.1 part by weight of a hindered amine light stabilizer were blended. The same polypropylene resin and organic phosphorus antioxidant as in Example 1 were used. Dimethyl succinate-1-(2-hydroxyethyl)-4-hydroxy-2,2,6,6-
A tetramethyl biveridine polycondensate was used.
これらを均一に混合後、押出機を用いて２２０°Ｃの温
度でペレット化し、ポリプロピレン組成物のペレットを
得た。このペレットを、実施例１と同様にしてサンプル
容器とした。After uniformly mixing these, they were pelletized using an extruder at a temperature of 220°C to obtain pellets of a polypropylene composition. This pellet was used as a sample container in the same manner as in Example 1.
そして、この容器について実施例１と同様にして着色テ
ストを行った。その結果、容器の着色は殆ど見られなか
った。A coloring test was then conducted on this container in the same manner as in Example 1. As a result, almost no coloring of the container was observed.
裏旌斑主
ポリプロピレン系樹脂、ステアリン酸カルシウム、及び
有機燐系酸化防止剤を、実施例１と同様の割合で配合し
た。ポリプロピレン系樹脂には実施例１と同様のものを
用いた。有機燐系酸化防止剤としてジステアリルペンタ
エリスリトールジホスファイト０．１部を配合した。A polypropylene-based resin with back-spotted spots, calcium stearate, and an organic phosphorus-based antioxidant were blended in the same proportions as in Example 1. The same polypropylene resin as in Example 1 was used. 0.1 part of distearyl pentaerythritol diphosphite was blended as an organic phosphorus antioxidant.
これらを均一に混合後、押出機を用いて２２０°Ｃの温
度でペレット化し、ポリプロピレン組成物のペレットを
得た。このペレットを、実施例１と同様にしてサンプル
容器とした。After uniformly mixing these, they were pelletized using an extruder at a temperature of 220°C to obtain pellets of a polypropylene composition. This pellet was used as a sample container in the same manner as in Example 1.
そして、この容器について実施例１と同様にして着色テ
ストを行った。その結果、容器の着色は殆ど見られなか
った。A coloring test was then conducted on this container in the same manner as in Example 1. As a result, almost no coloring of the container was observed.
尖施班土
ポリプロピレン系樹脂１００重量部に対し、ステアリン
酸カルシウムを０．０１重量部、有機燐系酸化防止剤を
０．１重量部、及びヒンダードアミン系光安定剤を０．
５重量部の割合で配合した。ポリプロピレン系樹脂には
実施例１と同様のものを用いた。有機燐系酸化防止剤と
してテトラキス（２，４−ジ−ｔ−ブチルフェニル）−
４，４“−ビフェニレンジホスファイトを用い、ヒンダ
ードアミン系光安定剤としてポリ［［（６−（１１，３
，３，−テトラメチルブチル）イミノ−１゜３．５−ト
リアジン−２，４−ジイル）（（２゜２．６．６−テト
ラメチル−４−ピペリジル）イミノ）コヘキサメチレン
（（２，２，６，６−テトラメチル−４−ピペリジル）
イミノ）コを用いた。0.01 part by weight of calcium stearate, 0.1 part by weight of an organic phosphorus antioxidant, and 0.0 parts by weight of a hindered amine light stabilizer for 100 parts by weight of a polypropylene resin.
It was blended in a proportion of 5 parts by weight. The same polypropylene resin as in Example 1 was used. Tetrakis(2,4-di-t-butylphenyl)- as an organophosphorus antioxidant
Using 4,4″-biphenylene diphosphite, poly[[(6-(11,3
,3,-tetramethylbutyl)imino-1゜3.5-triazine-2,4-diyl)((2゜2.6.6-tetramethyl-4-piperidyl)imino)cohexamethylene((2, 2,6,6-tetramethyl-4-piperidyl)
Iminoko was used.
これらを均一に混合後、押出機を用いて２２０°Ｃの温
度でペレット化し、ポリプロピレン組成物のペレットを
得た。このペレットを、実施例１と同様にしてサンプル
容器とした。After uniformly mixing these, they were pelletized using an extruder at a temperature of 220°C to obtain pellets of a polypropylene composition. This pellet was used as a sample container in the same manner as in Example 1.
そして、この容器について実施例１と同様にして着色テ
ストを行った。その結果、容器の着色は殆ど見られなか
った。A coloring test was then conducted on this container in the same manner as in Example 1. As a result, almost no coloring of the container was observed.
旦圭１糺上
酸化防止剤として、ヒンダードフェノール系のジー第３
ブチル−ｐ−クレゾールを用いた以外は、実施例１と同
様にしてポリプロピレン組成物のペレットを得た。この
ペレットを、実施例１と同様にしてサンプル容器とした
。Dankei 1 Hindered phenol type G-3 is used as a glue-based antioxidant.
Pellets of a polypropylene composition were obtained in the same manner as in Example 1 except that butyl-p-cresol was used. This pellet was used as a sample container in the same manner as in Example 1.
そして、この容器について実施例１と同様にして着色テ
ストを行った。着色テスト後、容器は黄色に着色してい
た。A coloring test was then conducted on this container in the same manner as in Example 1. After the color test, the container was colored yellow.
且藍班芸
酸化防止剤としてヒンダードフェノール系のテトラキス
〔メチレン−３−（３″、５゛−ジーを一ブチルー４−
ハイドロキシフェニル）プロピオネートコメタンを用い
た他は、実施例１と同様にしてポリプロピレン組成物の
ペレットを得た。このペレットを、実施例１と同様にし
てサンプル容器とした。As an antioxidant, hindered phenolic tetrakis [methylene-3-(3'', 5゛-di-one-butyl-4-
Pellets of a polypropylene composition were obtained in the same manner as in Example 1, except that hydroxyphenyl)propionate comethane was used. This pellet was used as a sample container in the same manner as in Example 1.
そして、この容器について実施例１と同様にして着色テ
ストを行った。着色テスト後、容器は黄色に着色してい
た。A coloring test was then conducted on this container in the same manner as in Example 1. After the color test, the container was colored yellow.
［本発明の作用・効果］
本発明のポリプロピレン組成物は、フェノール系酸化防
止剤を殆ど含んでいない。従って、白菜の汁によって発
色することもない。[Actions and Effects of the Present Invention] The polypropylene composition of the present invention contains almost no phenolic antioxidant. Therefore, the color will not develop due to the juice of Chinese cabbage.
従って、この組成物を底形した容器に白菜を長期間保存
しても、容器が黄色く着色するという問題はない。Therefore, even if Chinese cabbage is stored in a bottom-shaped container containing this composition for a long period of time, there is no problem of the container becoming yellowed.
Claims (1)
部 （ｃ）ヒンダードアミン系光安定剤・・・・・０〜２．
０重量部 よりなる、食品容器用ポリプロピレン組成物。(1) (a) Polypropylene resin...100 parts by weight (b) Organophosphorus antioxidant...0.01 to 0.5 part by weight (c) Hindered amine light stabilizer...0 ~2.
0 parts by weight of a polypropylene composition for food containers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5666390A JPH03259940A (en) | 1990-03-09 | 1990-03-09 | Polypropylene composition for food container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5666390A JPH03259940A (en) | 1990-03-09 | 1990-03-09 | Polypropylene composition for food container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03259940A true JPH03259940A (en) | 1991-11-20 |
Family
ID=13033638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5666390A Pending JPH03259940A (en) | 1990-03-09 | 1990-03-09 | Polypropylene composition for food container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03259940A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001527109A (en) * | 1997-12-18 | 2001-12-25 | ビーエーエスエフ アクチェンゲゼルシャフト | Use of ethylene homopolymers and copolymers stabilized by sterically hindered amines or their N-hydroxy or N-oxyl derivatives for the production of plastic products and moldings for storage and transport of vegetable oil esters |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6361038A (en) * | 1986-09-02 | 1988-03-17 | Mitsubishi Petrochem Co Ltd | Radiation-resistant polyolefin composition |
| JPS6438455A (en) * | 1987-08-03 | 1989-02-08 | Chisso Corp | Propylene polymer composition stable against radiation |
| JPS6438457A (en) * | 1987-08-03 | 1989-02-08 | Chisso Corp | Propylene polymer composition stable against radiation |
| JPS6438456A (en) * | 1987-08-03 | 1989-02-08 | Chisso Corp | Propylene polymer composition stable against radiation |
| JPH02153953A (en) * | 1988-12-06 | 1990-06-13 | Tonen Sekiyukagaku Kk | Radiation-resistant polyolefin composition |
| JPH032239A (en) * | 1989-05-31 | 1991-01-08 | Mitsubishi Petrochem Co Ltd | Molded product for colored food |
-
1990
- 1990-03-09 JP JP5666390A patent/JPH03259940A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6361038A (en) * | 1986-09-02 | 1988-03-17 | Mitsubishi Petrochem Co Ltd | Radiation-resistant polyolefin composition |
| JPS6438455A (en) * | 1987-08-03 | 1989-02-08 | Chisso Corp | Propylene polymer composition stable against radiation |
| JPS6438457A (en) * | 1987-08-03 | 1989-02-08 | Chisso Corp | Propylene polymer composition stable against radiation |
| JPS6438456A (en) * | 1987-08-03 | 1989-02-08 | Chisso Corp | Propylene polymer composition stable against radiation |
| JPH02153953A (en) * | 1988-12-06 | 1990-06-13 | Tonen Sekiyukagaku Kk | Radiation-resistant polyolefin composition |
| JPH032239A (en) * | 1989-05-31 | 1991-01-08 | Mitsubishi Petrochem Co Ltd | Molded product for colored food |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001527109A (en) * | 1997-12-18 | 2001-12-25 | ビーエーエスエフ アクチェンゲゼルシャフト | Use of ethylene homopolymers and copolymers stabilized by sterically hindered amines or their N-hydroxy or N-oxyl derivatives for the production of plastic products and moldings for storage and transport of vegetable oil esters |
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