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1. 发明专利

CA2098539A1 ETHYLENE COPOLYMER COMPOSITION 未知
公开(公告)号：CA2098539A1
公开(公告)日：1993-12-18
申请号：CA2098539
申请日：1993-06-16
申请人： MITSUI PETROCHEMICAL IND
发明人： TAKAHASHI MAMORU , TODO AKIRA , IKEYAMA SEIICHI , TSUTSUI TOSHIYUKI , MATSUNAGA SHINYA , KANESHIGE NORIO
IPC分类号： C08L23/08 , C08L23/00 , C08L23/06 , C08L23/02
摘要： An ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer [A-1] which has a density, a melt flow rate (MFR), an amount of a n-decane-soluble portion in the specific ranges and whose melt tension (MT) at 190 .degree.C and MFR satisfy the relation MT>2.2xMFR-D.84, and one (co)polymer selected from the group consisting of [B-1] a low-density polyethylene obtained by high-pressure radical polymerization, [B-2] a crystalline polyolefin and [B-3] an olefin type elastomer. Also disclosed is an ethylene copolymer composition comprising an ethylene/.alpha.- olefin copolymer composition and the low-density polyethylene [B-1] obtained by high-pressure radical polymerization, said ethylene/.alpha.-olefin copolymer composition comprising ethylene/.alpha.-olefin copolymers [A-2] and [A-3] both having physical properties similar to those of the above ethylene/.alpha.-olefin copolymer [A-1] and having intrinsic viscosities different from each other. Further disclosed is an ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer [A-4] which has a density, a melt flow rate (MFR), a weight of a n-decane-soluble portion in the specific ranges and whose melt tension (MT) at 190 .degree.C and MFR satisfy the relation MT

2. 发明专利

JPH09296084A PROPYLENE POLYMER COMPOSITION AND MOLDED PRODUCT 失效
公开(公告)号：JPH09296084A
公开(公告)日：1997-11-18
申请号：JP5509997
申请日：1997-03-10
申请人： MITSUI PETROCHEMICAL IND
发明人： MATSUNAGA SHINYA , TAN JUNJI
IPC分类号： C08J5/00 , C08K3/00 , C08K5/00 , C08L23/10 , C08L23/14
摘要： PROBLEM TO BE SOLVED: To obtain a propylene polymer compsn. having a high rate of crystallization and improved in rigidity, rigidity under heating conditions, transparency, gloss, surface hardness, etc., by blending a propylene polymer obtd. using a metallocene catalyst with a nucleating agent. SOLUTION: A propylene polymer obtd. using a metallocene catalyst is blended with a nucleating agent. Examples of the propylene polymer include a propylene homopolymer, block copolymers obtd. using propylene as the main monomer, and random copolymers obtd. using propylene as the main monomer. Usable examples of the metallocene catalyst include catalysts comprising a metallocene compd. contg. a transition metal such as Ti, Zr or Hf and an organoaluminumoxy compd. Examples of the nucleating agent include organophosphorus nucleating agents, sorbitol nucleating agents, arom. carboxylic acid nucleating agents, high-melting polymer nucleating agents, inorg. nucleating agents, and rosin nucleating agents, which may be used either alone or in combination, and the amt. of which to be used is 0.001 to 5 pts.wt. per 100 pts.wt. propylene polymer.

3. 发明专利

JPH0967478A THERMOPLASTIC RESIN COMPOSITION 失效
公开(公告)号：JPH0967478A
公开(公告)日：1997-03-11
申请号：JP16185296
申请日：1996-06-21
申请人： MITSUI PETROCHEMICAL IND
发明人： MATSUNAGA SHINYA , IMUDA JUNICHI
IPC分类号： C08L23/02 , C08L23/00 , C08L23/10 , C08L23/26 , C08L51/06 , C08L101/00
摘要： PROBLEM TO BE SOLVED: To obtain the subject composition having high elastic modulus and high impact strength. SOLUTION: This resin composition is produced from (A) a thermoplastic resin, (B) an olefin polymer having an intrinsic viscosity [η] of 0.5-10dl/g and the maximum peak temperature (Tm) of >=100 deg.C in the endothermic curve measured by a differential scanning calorimeter (DSC), (C) a propylene homopolymer having an intrinsic viscosity [η] of 0.5-10dli/g and an mr/(mm+rr) value of 0.8-1.2 in a diad distribution measured by NMR, (D) an elastomer and (E) a modified olefinic polymer.

4. 发明专利

JPH08283491A FLEXIBLE POLYOLEFIN COMPOSITION 失效
公开(公告)号：JPH08283491A
公开(公告)日：1996-10-29
申请号：JP9261395
申请日：1995-04-18
申请人： MITSUI PETROCHEMICAL IND
发明人： MATSUNAGA SHINYA , ISHIMOTO AKIO
IPC分类号： C08L23/14 , A61J1/10 , C08L23/10 , C08L23/16
摘要： PURPOSE: To obtain a polyolefin excellent in transparency and flexibility, not lowering these characteristics even in exposure to a high temperature, suitable as a packing material for a transfusion pack, etc., having improved heat resistance. CONSTITUTION: This flexible polyolefin composition comprises (i) an ethylene component, (ii) a propylene component and (iii) a 4-12C α-olefin component and contains [I] 10-50wt.% of a part soluble in decane at 30 deg.C and [II] 90-50wt.% of a part insoluble in decane at 30 deg.C [100wt.% of the total of [I] and [II] in which the part soluble in decane at 30 deg.C and the part insoluble in decane at 30 deg.C have 0.5-4dl/g intrinsic viscosity and 1.0-4dl/g intrinsic viscosity [η] respectively and molar ratios of (i) the ethylene component, (ii) the propylene component and (iii) the 4-12C α-olefin component of (1-25)/(85-25)/(5-55) and (0-15)/(100-70)/(0-20), respectively.

5. 发明专利

JPH101573A POLYPROPYLENE RESIN COMPOSITION AND ITS USE 失效
公开(公告)号：JPH101573A
公开(公告)日：1998-01-06
申请号：JP15451496
申请日：1996-06-14
申请人： MITSUI PETROCHEMICAL IND
发明人： MATSUNAGA SHINYA
IPC分类号： C08J5/00 , B29C45/00 , B29K23/00 , C08K3/00 , C08L23/00 , C08L23/04 , C08L23/08 , C08L23/10 , C08L53/00
摘要： PROBLEM TO BE SOLVED: To provide a polypropylene resin composition excellent in impact resistance as well as rigidity and heat resistance and its use. SOLUTION: This composition comprises 10-95wt.% at least one propylene polymer produced by using a metallocene catalyst, 5-90wt.% at least one thermoplastic elastomer selected among ethylene/α-olefin random copolymers and styrene-ethylene/butylene-styrene block copolymers, and 0-30wt.% inorganic filler. Injection moldings made from the composition are desirable as parts of automobiles, household electric appliances and sundries.

6. 发明专利

JPH09278951A OLEFIN POLYMER COMPOSITION 失效
公开(公告)号：JPH09278951A
公开(公告)日：1997-10-28
申请号：JP8866096
申请日：1996-04-10
申请人： MITSUI PETROCHEMICAL IND
发明人： MATSUNAGA SHINYA , SUGIMURA KENJI , YOROZU KIYOTAKA
IPC分类号： C08J5/00 , B29C51/00 , B29K23/00 , C08F4/60 , C08F4/70 , C08F10/00 , C08L23/00 , C08L23/02
摘要： PROBLEM TO BE SOLVED: To obtain an olefin polymer composition excellent in rigidity such as tensile elastic modulus and mechanical characteristics such as impact resistance, comprising two or more olefin polymers prepared by using a new catalyst and having specific physical properties. SOLUTION: This olefin polymer composition comprises two or more olefin polymers prepared by using a catalyst containing a transition metal compound of formula I [M is a transition metal of the group 8 to the group 10; X and X are each N or P; R and R are each H or a hydrocarbon; (m) and (n) are each 1 or 2; R is a group of formula II or formula III (R , R , R and R are each H or a hydrocarbon), etc.; R and R are each H, a halogen, etc.] and has 0.001-500g/10 minutes melt flow rate MFR and >=0.86g/cm density. An ethylene homopolymer and an ethylene/α-olefin copolymer are preferable as the component A. The catalyst is preferably formed by using the compound of formula I and an organoaluminumoxy compound and an alkylboronic acid derivative as a cocatalyst component.

7. 发明专利

JPH09255826A PROPYLENE-BASED POLYMER COMPOSITION AND MOLDING 失效
公开(公告)号：JPH09255826A
公开(公告)日：1997-09-30
申请号：JP7248696
申请日：1996-03-27
申请人： MITSUI PETROCHEMICAL IND
发明人： MATSUNAGA SHINYA , TAN JUNJI
IPC分类号： C08J5/00 , C08K5/00 , C08L23/10
摘要： PROBLEM TO BE SOLVED: To obtain the subject composition capable of giving moldings excellent in weatherability, and suitable for automotive trim materials, etc., by incorporating a propylene-based polymer with a weathering stabilizer. SOLUTION: This composition is obtained by incorporating (A) 100 pts.wt. of a propylene-based polymer prepared by using a metallocene-based catalyst (pref. composed of a metallocene compound containing a transition metal element such as titanium and an organoaluminumoxy compound) with (B) pref. 0.001-5 pts.wt. of a weathering stabilizer [pref. 2-(2'-hydroxy-3'-t-butyl-5'- methylphenyl)-5-chlorobenzotriazole].

8. 发明专利

JPH0976358A POLYPROPYLENE MOLDING 失效
公开(公告)号：JPH0976358A
公开(公告)日：1997-03-25
申请号：JP24178195
申请日：1995-09-20
申请人： MITSUI PETROCHEMICAL IND
发明人： MATSUNAGA SHINYA , SHINOZAKI TETSUNORI , MORIYA SATORU , TODO AKIRA
IPC分类号： B29C71/02 , B29K23/00
摘要： PROBLEM TO BE SOLVED: To enhance the rigidity and heat resistance of a polypropylene molding by annealing a molding composed of a propylene polymer having a specific melt flow rate and high in the stereoregularity of a decane insoluble component. SOLUTION: A molding composed of a propylene polymer characterized by that a melt flow rate at 230 deg.C under load of 2.16kg is 0.1-500g/10min and a value of a streoregular index [M5 ] calculated from absorption intensities of Pmmmm, Pw, Sαγ, Sαδ , Tδ δ in a C-NMR spectrum of a decane insoluble component at 23 deg.C according to formula is 0.95-0.005 is annealed. In the formula, Pmmmm is absorption intensity (A) resulting from the methyl group of the third unit in an isotactic bonding region wearies 5 propylene units continue, Sαγ and Sαδ are A resulting from secondary carbon wherein one of two tertiary carbon atoms nearest from secondary carbon in a main chain is present at an α-position and the other one of them is present at γ or δ position and Tδ δ is A resulting from specific tertialy carbon.

9. 发明专利

JPH08134285A ETHYLENE COPOLYMER COMPOSITION 失效
公开(公告)号：JPH08134285A
公开(公告)日：1996-05-28
申请号：JP28095394
申请日：1994-11-15
申请人： MITSUI PETROCHEMICAL IND
发明人： KISHINE MASAHIRO , MATSUNAGA SHINYA , NAGANO SHINICHI
IPC分类号： C08L23/04 , C08L23/00 , C08L23/08
摘要： PURPOSE: To obtain an ethylene copolymer composition excellent in moldability, pipe fatigue properties, mechanical strength, and rigidity. CONSTITUTION: This ethylene copolymer composition comprises (A) 20 to 90wt.% ethylene homopolymer or copolymer of ethylene with a 3-20 C α-olefin and having a density (DA) of 0.950 to 0.0980g/cm and an intrinsic viscosity of 0.6 to 3.4dl/g and (B) 10 to 80wt.% copolymer of ethylene with a 3-20 C α-olefin having a density (DB) of 0.910 to 0.945g/cm and an intrinsic viscosity of 3.4dl/g or more with the dA/dB being 1 or more, has a density of 0.945 to 0.970g/cm and an intrinsic viscosity of 2.41 to 6.3dl/g, and is obtained by extruding the resin from a capillary at 190 deg.C with the shear rate being varied so that the flow index (FI) defined by the shear rate where the stress reaches 2.4×10 dyne/ cm may be .

10. 发明专利

JPH09221569A STABILIZED PROPYLENE POLYMER COMPOSITION AND THERMOFORMED PRODUCT THEREOF 失效
公开(公告)号：JPH09221569A
公开(公告)日：1997-08-26
申请号：JP2816696
申请日：1996-02-15
申请人： MITSUI PETROCHEMICAL IND
发明人： MATSUNAGA SHINYA , TAN JUNJI
IPC分类号： C08K5/13 , C08K5/41 , C08K5/52 , C08L23/10
摘要： PROBLEM TO BE SOLVED: To provide a propylene polymer composition having excellent stability by improving the stability (e.g. heat and thermal aging resistances) of a propylene polymer obtained by using a metallocene catalyst and to provide a thermoformed product thereof. SOLUTION: This thermoformed product is prepared by thermoforming a stabilized propylene polymer composition prepared by mixing a propylene polymer obtained by using a metallocene catalyst with at least one stabilizer selected from the group consisting of phenolic, phosphorus and sulfur stabilizers.

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