WO1989000181A1 - Polyarylene sulfide resin composition - Google Patents
Polyarylene sulfide resin composition Download PDFInfo
- Publication number
- WO1989000181A1 WO1989000181A1 PCT/JP1987/000447 JP8700447W WO8900181A1 WO 1989000181 A1 WO1989000181 A1 WO 1989000181A1 JP 8700447 W JP8700447 W JP 8700447W WO 8900181 A1 WO8900181 A1 WO 8900181A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- polyarylene sulfide
- ethylene
- resin composition
- present
- Prior art date
Links
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229920000412 polyarylene Polymers 0.000 title claims abstract description 8
- 239000011342 resin composition Substances 0.000 title abstract 3
- 229920001038 ethylene copolymer Polymers 0.000 claims abstract description 13
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000005977 Ethylene Substances 0.000 claims abstract description 8
- 125000005907 alkyl ester group Chemical group 0.000 claims abstract description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims 1
- 239000011976 maleic acid Substances 0.000 claims 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 229920006351 engineering plastic Polymers 0.000 abstract 1
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 11
- -1 polyphenylene sulfite Polymers 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- 239000003365 glass fiber Substances 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 125000005641 methacryl group Chemical group 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- 244000132059 Carica parviflora Species 0.000 description 1
- 241000282693 Cercopithecidae Species 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical group CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 101100366942 Mus musculus Ston1 gene Proteins 0.000 description 1
- 241000750002 Nestor Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920013632 Ryton Polymers 0.000 description 1
- 239000004736 Ryton® Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- UCUUFSAXZMGPGH-UHFFFAOYSA-N penta-1,4-dien-3-one Chemical group C=CC(=O)C=C UCUUFSAXZMGPGH-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 230000000476 thermogenic effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/02—Polythioethers; Polythioether-ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
Definitions
- the present invention relates to a modified polyarylene sulfide tttt composition having a high balance.
- Rewarding technology POLYF * Polyurethane salid y represented by urelen salf guide, etc. «The belly is excellent in heat resistance, dynamism, cafeteria, etc. In recent years, it has been attracting attention as a near-ring plastic, especially in the field of electric appliances and motor vehicle parts.
- the present invention # is based on the above-mentioned conditions, and is characterized by the addition of sugar *, polyphenylene sulfite, ethylene, a By blending a polyethylene copolymer consisting of benzylalkyl pentyl and anhydrous maleic fiber, the poly-lens sulfide tree ar
- the present invention has been found that a parent product having excellent characteristics can be obtained while maintaining the above characteristics. It is an object of the present invention to provide a composition having improved properties such as heat resistance and durability of a poly (phenylene sulfide) balance w without deteriorating its properties. You. That is, the present invention relates to the following:
- the poly-lens salfide used in the present invention is represented by the general formula ⁇ Ar— It is a polymer represented by 2: In ⁇ ——for example, ,
- PPS polygonal universal guide represented by the general 3 ⁇ 4- ⁇ -s ⁇ .), which is a U.S. Slipstick ⁇ -series. It is commonly marketed by Am Corporation under the trademark Ryton.
- the production method is described in U.S. Pat. No. 8,8 ⁇ 4,129 #Migration and its corresponding Japanese Patent Publication No. 51-38S8, and is disclosed in US Pat.
- a solvent of 1650 to 250 in a don solvent, and under a pressurized condition
- the unitary component of the ethylene copolymer is ethylene, a, jS—unsweetened urea, a polyester, and an anhydrous male. Is it made of Inn Yabu? ), 50 to 90 weight% of ethylene, or 60 to 8 ⁇ -fold i3 ⁇ 4, a, / 3 — 5 to 49 weight of unsaturated carbon H alkyl ester ⁇ , Preferably between 7 and 4 6 All good beauty anhydrous Ma Tray down. »Is 0, ⁇ ⁇ 1 OS amount, rather than the favored Ru 1 to 8 double S» Der 0
- ⁇ , 3 —No! 3 ⁇ 43 ⁇ 43 karmon mongolian arresting styling is an unconventional bonbon with 8 to 8 cubic meters of search, for example, acryl, methacrylic number, etc.
- esters include, but are not limited to, acrylic acid, methyl acid, acrylic acid ester, acrylic acid 11- probe, and acrylic acid.
- the amount of these ethylene copolymers to be S3 mixed was determined by comparing the amount of JPP S 70-99 with respect to the combination of FfS and ethylene copolymers, Copolymer 80 to 1 S amount is appropriate! ), Is 99
- the weight of the ethylene copolymer is less than 1% by weight, the effect of refreshing the target vulnerability is insufficient.
- the PJPS exceeds 70% by weight and the ethylene copolymer exceeds 80% by weight, the heat resistance and the durability, which are the characteristics of fPS, are significantly reduced. I don't like it.
- the compounding agent a of the composition ⁇ of the present invention is not particularly determined ⁇ . 1 »PS and styrene copolymers are separately supplied to the port.» »It is possible to supply to the combined machine. Also, these raw materials are mortar, hensyl * in advance. It is also possible to use a mixer, a VOLMIR, a lip blender, etc., to preliminarily match before supplying to the smelting machine.
- an antioxidant and a heat stabilizer, an ultraviolet absorber, a clarifier, a bell dye, a dye, a coloring agent such as a pigment, etc. to the extent that the object of the present invention is not included.
- One or more ordinary additives such as a flame retardant, a flame retardant aid, an antistatic agent, and an antioxidant, can be added.
- thermogenic fleas eg., polyethylene, polypropylene, polyamide, polycarbonate, polysulfone, Politi Chilsa Le phon, modified volume Re off ⁇ les emission O key support wells', etc.
- thermosetting plum butter e.g. full Roh Lumpur «I fat, Bo key sheet trees JW, etc.
- fillers such as glass fibers, carbon fibers, pon fibers, soybean fiber fibers, asbestos fibers, metal fibers, etc. It is also possible to combine fillers such as glass, glassite, glass beads, aruna, and charcoal charcoal.
- glass fibers or carbon fibers have remarkable effects of improving the durability and heat resistance by their pitting, and provide a useful composition.
- the fiber has a diameter of 5 to 15 and a length of 3 to 8 * » and is composed of hundreds to thousands of single fibers.
- -Use a mouth bing made of long fibers or even fibers, and distribute them evenly in the final boat so that the average fiber diameter is in the range of 0.1 ⁇ to 0.
- Is preferred 0 BEST MODE FOR SOLOTING THE INVENTION 3
- the present invention will be described with reference to examples, but these are merely examples, and the present invention is not limited thereto. Not ⁇
- Table 1 shows the styrene copolymers consisting of ⁇ -4) and 6% of diethylene, acrylyl ethylene 30. ⁇ and anhydrous malein 2. ⁇ 3 ⁇ 4.
- the composition shown in the table below is combined with a twin-screw extruder (Ikegu Iron Works PC ⁇ —
- the strand was cut with water »and pelletized.
- the obtained pellets were injection-molded (Sumitomo Heavy Industries' Nestor 47/28 injection molding machine, cylinder SL degree 8100, gold S degree 1800> Test piece, bending test piece, thermal deformation degree
- the obtained pellets were injection molded (Sumitomo Heavy Industries, Ltd. 47/28 injection molding machine, 'No Linda *', temperature: 320 2; gold: 2B ⁇ , 180 °).
- the test pieces were as follows: ASTM D-256, D-790, and D-648. Therefore, it was inserted.
- the male and female glass fibers used in the shojo 4-5 were combined at the ratios shown in Table 2 and processed in the same manner as in Examples 4-5, and the physical properties were measured. Table 2
- the polyarylene sulfide of the present invention is also combined with an ethylene copolymer base comprising ethylene, ⁇ , ⁇ -unsaturated carboxylic acid alkyl ester and maleic anhydride in addition to the polyarylene sulfide IS.
- the ⁇ 3 ⁇ 4 is a genuinely improved one without reducing the maturity and rigidity. Therefore, the arrowhead structure of the present invention is used as an automotive electronics for products such as electric and electronic products, automotive products, and OA roof gap products, even if it is required to be thinner and smaller.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29458485A JPS62151460A (ja) | 1985-12-26 | 1985-12-26 | ポリアリ−レンサルフアイド樹脂組成物 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1989000181A1 true WO1989000181A1 (en) | 1989-01-12 |
Family
ID=17809668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1987/000447 WO1989000181A1 (en) | 1985-12-26 | 1987-06-30 | Polyarylene sulfide resin composition |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS62151460A (enrdf_load_stackoverflow) |
| WO (1) | WO1989000181A1 (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5191020A (en) * | 1989-07-05 | 1993-03-02 | Asahi Kasei Kogyo Kabushiki Kaisha | Polyphenylene sulfide resin composition |
| GB2348152A (en) * | 1997-12-08 | 2000-09-27 | Baby Think It Over Inc | Infant simulator |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0653848B2 (ja) * | 1986-01-23 | 1994-07-20 | 東レ株式会社 | ポリフエニレンスルフイド組成物 |
| US5219920A (en) * | 1988-11-04 | 1993-06-15 | Mitsubishi Rayon Co., Ltd. | Polyarylene sulfide resin composition |
| US5270375A (en) * | 1988-11-04 | 1993-12-14 | Mitsubishi Rayon Co., Ltd. | Polyarylene sulfide resin |
| US5087666A (en) * | 1990-07-10 | 1992-02-11 | Phillips Petroleum Company | Modified poly(arylene sulfide) composition with improved impact strength and reduced shrinkage |
| JP4307908B2 (ja) | 2003-06-05 | 2009-08-05 | ポリプラスチックス株式会社 | ポリアリーレンサルファイド樹脂組成物および塗装成形品 |
| JP5029476B2 (ja) * | 2008-04-15 | 2012-09-19 | 東ソー株式会社 | ポリアリーレンスルフィド組成物 |
| JP6048019B2 (ja) * | 2012-09-12 | 2016-12-21 | 東レ株式会社 | ポリフェニレンスルフィド樹脂組成物成形品、その製造方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56136847A (en) * | 1980-03-31 | 1981-10-26 | Dainippon Ink & Chem Inc | Polyarylenesulfide composition |
| JPS58154757A (ja) * | 1982-03-10 | 1983-09-14 | Toray Ind Inc | ポリアリ−レンスルフイド樹脂組成物 |
| JPS60229949A (ja) * | 1984-04-16 | 1985-11-15 | 東レ株式会社 | 強化ポリアリ―レンサルファイド成形用組成物 |
-
1985
- 1985-12-26 JP JP29458485A patent/JPS62151460A/ja active Granted
-
1987
- 1987-06-30 WO PCT/JP1987/000447 patent/WO1989000181A1/ja unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56136847A (en) * | 1980-03-31 | 1981-10-26 | Dainippon Ink & Chem Inc | Polyarylenesulfide composition |
| JPS58154757A (ja) * | 1982-03-10 | 1983-09-14 | Toray Ind Inc | ポリアリ−レンスルフイド樹脂組成物 |
| JPS60229949A (ja) * | 1984-04-16 | 1985-11-15 | 東レ株式会社 | 強化ポリアリ―レンサルファイド成形用組成物 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5191020A (en) * | 1989-07-05 | 1993-03-02 | Asahi Kasei Kogyo Kabushiki Kaisha | Polyphenylene sulfide resin composition |
| GB2348152A (en) * | 1997-12-08 | 2000-09-27 | Baby Think It Over Inc | Infant simulator |
| GB2348152B (en) * | 1997-12-08 | 2002-09-25 | Baby Think It Over Inc | Infant simulator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0518352B2 (enrdf_load_stackoverflow) | 1993-03-11 |
| JPS62151460A (ja) | 1987-07-06 |
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