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1. WO1991000891 - POLYPROPYLENE RESIN COMPOSITION

Publication Number WO/1991/000891
Publication Date 24.01.1991
International Application No. PCT/JP1990/000891
International Filing Date 11.07.1990
IPC
C08K 3/22 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
18Oxygen-containing compounds, e.g. metal carbonyls
20Oxides; Hydroxides
22of metals
C08K 5/527 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
5Use of organic ingredients
49Phosphorus-containing compounds
51Phosphorus bound to oxygen
52bound to oxygen only
527Cyclic esters
CPC
C08K 3/22
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
3Use of inorganic substances as compounding ingredients
18Oxygen-containing compounds, e.g. metal carbonyls
20Oxides; Hydroxides
22of metals
C08K 5/527
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
5Use of organic ingredients
49Phosphorus-containing compounds
51Phosphorus bound to oxygen
52Phosphorus bound to oxygen only
527Cyclic esters
Applicants
  • MITSUI TOATSU CHEMICALS INCORPORATED [JP/JP]; 2-5, Kasumigaseki 3-chome Chiyoda-ku Tokyo 100, JP (AllExceptUS)
  • YOKOTE, Sachio [JP/JP]; JP (UsOnly)
  • KAWAI, Yoichi [JP/JP]; JP (UsOnly)
  • MISUMI, Masaki [JP/JP]; JP (UsOnly)
Inventors
  • YOKOTE, Sachio; JP
  • KAWAI, Yoichi; JP
  • MISUMI, Masaki; JP
Agents
  • YAMASHITA, Johei; Yamashita & Associates Toranomon 40th Mori Bldg. 13-1, Toranomon 5-chome Minato-ku Tokyo 105, JP
Priority Data
1/17702411.07.1989JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POLYPROPYLENE RESIN COMPOSITION
(FR) COMPOSITION DE RESINE DE POLYPROPYLENE
Abstract
(EN)
A polypropylene resin composition which is excellent in transparency and scarcely causes lowering of the pH of an extract in an accelerated hot water extraction test of a polypropylene resin irradiated with a radiation for the purpose of sterilization. The composition comprises 100 parts by weight of polypropylene resin, 0.01 to 1.0 part by weight of metal diaryl phosphate of general formula; and 0.001 to 1.0 part by weight of a hydroxide of an alkali metal, an alkaline earth metal or an aluminum group metal (I), wherein R1 and R2 each represent hydrogen or alkyl; M represents alkali metal or alkaline earth metal; n is an integer of 1 or 2; and A represents alkylidene. This composition is suitable for medical appliances, food containers, and so forth.
(FR)
Une composition de résine de polypropylène à transparence excellente qui fait à peine baisser le pH d'un extrait dans un essai accéléré d'extraction d'eau chaude d'une résine de polypropylène irradiée par des readiations afin d'effectuer la stérilisation. La composition comprend 100 parties en poids de résine de polypropylène, 0,01 à 1,0 partie en poids de phosphate de diaryle métallique de la formule générale (I), et 0,001 à 1,0 partie en poids d'un hydroxyde d'un métal alcalin d'un métal terreux alcalin, ou d'un métal du groupe aluminium (I), où R1 et R2 représentent chacun un hydrogène ou un alkyle; M représente un métal alcalin; n est un nombre entier de 1 ou 2; et A représente l'akylidène. Cette composition est adaptée aux appareils médicaux, aux emballages d'aliments etc...
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