JPS5734924A - Biaxial drawing blow molding method for polypropylene - Google Patents

Biaxial drawing blow molding method for polypropylene

Info

Publication number
JPS5734924A
JPS5734924A JP10982180A JP10982180A JPS5734924A JP S5734924 A JPS5734924 A JP S5734924A JP 10982180 A JP10982180 A JP 10982180A JP 10982180 A JP10982180 A JP 10982180A JP S5734924 A JPS5734924 A JP S5734924A
Authority
JP
Japan
Prior art keywords
polypropylene
mfi
small amount
satisfies
derivative
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
Application number
JP10982180A
Other languages
Japanese (ja)
Inventor
Toru Ueki
Yokichi Miyanaga
Hideo Amamiya
Minoru Kuroda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP10982180A priority Critical patent/JPS5734924A/en
Publication of JPS5734924A publication Critical patent/JPS5734924A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene

Abstract

PURPOSE:To obtain a product, the surface thereof is not roughened and which is excellent in transparency, by using the polypropylene, which contains 0.05-1wt% dibenzylidene sorbitol or its nuclear substituting derivative and a melt flow index (MFI) thereof satisfies a specified condition. CONSTITUTION:As a nucleus forming agent, 0.05-1wt% (preferably, 0.1-0.4) dibenzylidene sorbitol or its nuclear substituting derivative manufactured through a known method is added to polypropylene polymer powder to which an antioxidant, an ultraviolet absorbent, an antistatic agent or a small amount of resin and elastomer are blended as necessary and mixed by means of a Henschel mixer, etc. Molecular chains are forcedly broken down by conducting said process in an air atmosphere without sealing with nitrogen, elevating an extruding temperature or adding a small amount of an organic peroxide to the powder and the mixture is pelletized so that the MFI satisfies formulae.
JP10982180A 1980-08-12 1980-08-12 Biaxial drawing blow molding method for polypropylene Pending JPS5734924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10982180A JPS5734924A (en) 1980-08-12 1980-08-12 Biaxial drawing blow molding method for polypropylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10982180A JPS5734924A (en) 1980-08-12 1980-08-12 Biaxial drawing blow molding method for polypropylene

Publications (1)

Publication Number Publication Date
JPS5734924A true JPS5734924A (en) 1982-02-25

Family

ID=14520053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10982180A Pending JPS5734924A (en) 1980-08-12 1980-08-12 Biaxial drawing blow molding method for polypropylene

Country Status (1)

Country Link
JP (1) JPS5734924A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483952A (en) * 1982-04-23 1984-11-20 E.C. Chemical Ind. Co., Ltd. Polyolefin resin composition comprising a dibenzylidene sorbitol derivative
JPS61138653A (en) * 1984-12-10 1986-06-26 Idemitsu Petrochem Co Ltd Modification of propylene-ehtylene randome copolymer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52152442A (en) * 1976-06-14 1977-12-17 Nippon Zeon Co Ltd Polypropylene resin compositions
JPS53102966A (en) * 1977-02-21 1978-09-07 Sumitomo Chem Co Ltd Blow molding of polyporpylene

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52152442A (en) * 1976-06-14 1977-12-17 Nippon Zeon Co Ltd Polypropylene resin compositions
JPS53102966A (en) * 1977-02-21 1978-09-07 Sumitomo Chem Co Ltd Blow molding of polyporpylene

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483952A (en) * 1982-04-23 1984-11-20 E.C. Chemical Ind. Co., Ltd. Polyolefin resin composition comprising a dibenzylidene sorbitol derivative
JPS61138653A (en) * 1984-12-10 1986-06-26 Idemitsu Petrochem Co Ltd Modification of propylene-ehtylene randome copolymer
JPH0513183B2 (en) * 1984-12-10 1993-02-19 Idemitsu Petrochemical Co

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