GB1416405A - Process for preparing styrenic polymer particles - Google Patents

Process for preparing styrenic polymer particles

Info

Publication number
GB1416405A
GB1416405A GB3599473A GB3599473A GB1416405A GB 1416405 A GB1416405 A GB 1416405A GB 3599473 A GB3599473 A GB 3599473A GB 3599473 A GB3599473 A GB 3599473A GB 1416405 A GB1416405 A GB 1416405A
Authority
GB
United Kingdom
Prior art keywords
particles
butyl
bis
methyl
polymer
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.)
Expired
Application number
GB3599473A
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.)
Sekisui Kaseihin Kogyo KK
Sekisui Chemical Co Ltd
Sekisui Kasei Co Ltd
Original Assignee
Sekisui Plastics Co Ltd
Sekisui Kaseihin Kogyo KK
Sekisui Chemical Co Ltd
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 Sekisui Plastics Co Ltd, Sekisui Kaseihin Kogyo KK, Sekisui Chemical Co Ltd filed Critical Sekisui Plastics Co Ltd
Priority to DE2338132A priority Critical patent/DE2338132C3/en
Priority to GB3599473A priority patent/GB1416405A/en
Priority to FR7327675A priority patent/FR2238718A1/en
Publication of GB1416405A publication Critical patent/GB1416405A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C08J9/20—Making expandable particles by suspension polymerisation in the presence of the blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
    • C08F257/02—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

1416405 Preparation of particulate styrenetype polymers SEKISUI KAGAKU KOGYO KK and SEKISUI KASEIHIN KOGYO KK 27 July 1973 35994/73 Heading C3P Particles of styrenic polymer (i.e. homo- or co-polymers of styrene and derivatives thereof) are prepared by suspending in water, styrenic polymer particles having a size of 0À4 to 1À8 mm. and adding to the suspension a styrenic monomer, an initiator and a polymerization retarder having a molecular weight of at least 200 in an amount of 1/200 to 1/15 mole per mole of initiator, while maintaining the suspension under conditions such that styrenic monomer absorbed by the polymer particles present is polymerized to form larger particles of substantially uniform size. Preferably the final product particles are constituted from 5-60 wt. per cent of the originally suspended particles and 95-40 wt. per cent of the monomer(s). Other agents such as flame retardants, colourants, lubricants and foaming agents (to produce foamable particles) may also be present during polymerization. Examples of suitable retarders and their molecular weights are: 3,5-dit - butyl - 4 - hydroxytoluene (220); 1,1 - bis- (4 - hydroxyphenyl) - cyclohexane (268); 4,4- butylidene - bis - (3 - methyl - 6 - t - butyl phenol) (383 ) ; 1,3,5-trimethyl-2,4,6-tris-3,5-dit - butyl - 4 - hydroxybenzyl benzene (775); 2,21 - methylene - bis - (6 - t - butyl - 4 - methylphenol) (352); dilaurylthiodipropionate (515); 4,4<SP>1</SP> - thiobis - (3 - methyl - 6 - t - butyl phenol (359); N,N<SP>1</SP> - di - # - naphthyl - pphenylene diamine (360) and N-phenyl-N-isopropyl-p-phenylene diamine (226À3). In the examples, the polymer is homopolystyrene or a styrene/methylmethacrylate copolymer. Foaming agents specified are propane, butane, pentane, cyclobutane, cyclopentane, methyl chloride, dichlorodifluoromethane, propylene isobutane, butene-1, cis- and trans-butene-2, isobutene, neopentane, butadiene, ethyl chloride, vinyl chloride, dichlorofluoromethane, chlorotrifluoromethane, and chlorodifluoromethane. In Example 14, n-pentane is used to produce foamable particles.
GB3599473A 1973-07-27 1973-07-27 Process for preparing styrenic polymer particles Expired GB1416405A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE2338132A DE2338132C3 (en) 1973-07-27 1973-07-27 Process for the production of styrene bead polymer
GB3599473A GB1416405A (en) 1973-07-27 1973-07-27 Process for preparing styrenic polymer particles
FR7327675A FR2238718A1 (en) 1973-07-27 1973-07-27 Polystyrene particles of uniform size, esp. for foams - by polymerising in suspension of fine polystyrene particles, contg. catalyst and polymn retarder

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2338132A DE2338132C3 (en) 1973-07-27 1973-07-27 Process for the production of styrene bead polymer
GB3599473A GB1416405A (en) 1973-07-27 1973-07-27 Process for preparing styrenic polymer particles
FR7327675A FR2238718A1 (en) 1973-07-27 1973-07-27 Polystyrene particles of uniform size, esp. for foams - by polymerising in suspension of fine polystyrene particles, contg. catalyst and polymn retarder

Publications (1)

Publication Number Publication Date
GB1416405A true GB1416405A (en) 1975-12-03

Family

ID=63798716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3599473A Expired GB1416405A (en) 1973-07-27 1973-07-27 Process for preparing styrenic polymer particles

Country Status (3)

Country Link
DE (1) DE2338132C3 (en)
FR (1) FR2238718A1 (en)
GB (1) GB1416405A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000513A1 (en) * 1977-07-25 1979-02-07 BASF Aktiengesellschaft Process for the reutilisation of decantation material resulting from the treatment of waste water from the production of polystyrene
EP0013073A1 (en) * 1978-12-20 1980-07-09 Mobil Oil Corporation Cross linkable blends with ionizing radiations of p-methylstyrene polymer with a polyunsaturated monomer and shaped articles formed therefrom
US4333969A (en) 1980-12-23 1982-06-08 Atlantic Richfield Company Process for producing styrenic polymer beads of preferred bead size
EP0101943A3 (en) * 1982-08-02 1985-09-18 The Dow Chemical Company Ion exchange resins
US4582859A (en) * 1983-12-02 1986-04-15 Rohm And Haas Company Process for producing an expanded seed copolymer and product therefrom
EP0506247A2 (en) * 1991-03-22 1992-09-30 Rohm And Haas Company Method of preparing surface-porous crosslinked copolymer beads
CN1036068C (en) * 1991-03-22 1997-10-08 罗姆和哈斯公司 Method of preparing surface-porous crosslinked copolymer beads
WO1999019375A1 (en) * 1997-10-10 1999-04-22 Dyno Specialty Polymers As Method of production of particulate polymers
WO2000061648A1 (en) * 1999-04-09 2000-10-19 Polymer Systems As Preparation of polymer particles
US6239224B1 (en) 1997-10-10 2001-05-29 Polymer Systems As Method of production of particulate polymers
WO2004089999A2 (en) 2003-04-14 2004-10-21 Akzo Nobel N.V. Dosing of peroxide to a suspension process wherein styrene is polymerized
US7217762B1 (en) 1999-04-09 2007-05-15 Invitrogen Corporation Process for the preparation of monodisperse polymer particles
WO2015138692A1 (en) * 2014-03-14 2015-09-17 Fina Technology, Inc. Crosslinking control in high impact polystyrene manufacturing

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520635B2 (en) * 1975-05-09 1980-06-19 Basf Ag, 6700 Ludwigshafen Process for the production of finely divided, expandable styrene polymers
CA1074050A (en) * 1976-05-24 1980-03-18 Arco Polymers Phenolic antioxidants for non-polymeric halogen compounds during impregnation of styrene polymer particles
DE2734607A1 (en) * 1977-08-01 1979-02-15 Basf Ag PROCESS FOR THE MANUFACTURING OF SPHERICAL EXPANDABLE STYRENE POLYMERIZES

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000513A1 (en) * 1977-07-25 1979-02-07 BASF Aktiengesellschaft Process for the reutilisation of decantation material resulting from the treatment of waste water from the production of polystyrene
EP0013073A1 (en) * 1978-12-20 1980-07-09 Mobil Oil Corporation Cross linkable blends with ionizing radiations of p-methylstyrene polymer with a polyunsaturated monomer and shaped articles formed therefrom
US4333969A (en) 1980-12-23 1982-06-08 Atlantic Richfield Company Process for producing styrenic polymer beads of preferred bead size
EP0101943A3 (en) * 1982-08-02 1985-09-18 The Dow Chemical Company Ion exchange resins
US4582859A (en) * 1983-12-02 1986-04-15 Rohm And Haas Company Process for producing an expanded seed copolymer and product therefrom
EP0506247A2 (en) * 1991-03-22 1992-09-30 Rohm And Haas Company Method of preparing surface-porous crosslinked copolymer beads
EP0506247A3 (en) * 1991-03-22 1992-10-28 Rohm And Haas Company Method of preparing surface-porous crosslinked copolymer beads
CN1036068C (en) * 1991-03-22 1997-10-08 罗姆和哈斯公司 Method of preparing surface-porous crosslinked copolymer beads
WO1999019375A1 (en) * 1997-10-10 1999-04-22 Dyno Specialty Polymers As Method of production of particulate polymers
US6239224B1 (en) 1997-10-10 2001-05-29 Polymer Systems As Method of production of particulate polymers
AU749916B2 (en) * 1997-10-10 2002-07-04 Polymer Systems As Method of production of particulate polymers
WO2000061648A1 (en) * 1999-04-09 2000-10-19 Polymer Systems As Preparation of polymer particles
US7217762B1 (en) 1999-04-09 2007-05-15 Invitrogen Corporation Process for the preparation of monodisperse polymer particles
US8658733B2 (en) 1999-04-09 2014-02-25 Life Technologies As Process for the preparation of monodisperse polymer particles
US9309368B2 (en) 1999-04-09 2016-04-12 Life Technologies As Process for the preparation of monodisperse polymer particles
WO2004089999A2 (en) 2003-04-14 2004-10-21 Akzo Nobel N.V. Dosing of peroxide to a suspension process wherein styrene is polymerized
WO2015138692A1 (en) * 2014-03-14 2015-09-17 Fina Technology, Inc. Crosslinking control in high impact polystyrene manufacturing
US9193839B2 (en) 2014-03-14 2015-11-24 Fina Technology, Inc. Crosslinking control in high impact polystyrene manufacturing process
EA033377B1 (en) * 2014-03-14 2019-10-31 Fina Technology Crosslinking control in high impact polystyrene manufacturing

Also Published As

Publication number Publication date
FR2238718B1 (en) 1977-02-25
DE2338132B2 (en) 1980-01-31
DE2338132C3 (en) 1980-09-25
FR2238718A1 (en) 1975-02-21
DE2338132A1 (en) 1975-02-27

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930726