GB1387136A - Manufacture of foams of chlorinated polymers - Google Patents

Manufacture of foams of chlorinated polymers

Info

Publication number
GB1387136A
GB1387136A GB3193072A GB3193072A GB1387136A GB 1387136 A GB1387136 A GB 1387136A GB 3193072 A GB3193072 A GB 3193072A GB 3193072 A GB3193072 A GB 3193072A GB 1387136 A GB1387136 A GB 1387136A
Authority
GB
United Kingdom
Prior art keywords
plate
mould
mixture
foams
polymer mixture
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
GB3193072A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1387136A publication Critical patent/GB1387136A/en
Expired 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • 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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
    • C08J2323/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
    • 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
    • C08J2327/00—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 a halogen; Derivatives of such polymers
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • 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
    • C08J2427/00—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 a halogen; Derivatives of such polymers

Landscapes

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

Abstract

1387136 Moulding foams BADISCHE ANILIN- & SODA-FABRIK AG 7 July 1972 [9 July 1971] 31930/72 Heading B5A [Also in Division C3] Moulded foams of a mixture of 5-95% by wt. of polyvinyl chloride and/or post-chlorinated polyvinyl chloride containing 56-70% by wt. of bound chlorine, with a chlorinated polyethylene containing 4-45% by wt. of bound chlorine are made by mixing the polymer mixture with a peroxide as cross-linking agent which causes no cross-linking of the polymer at the mixing temperature and 2-25% by wt. of a heat decomposable expanding agent, heating the mixture under pressure in a gas-tight mould initially having virtually no gas space, the heating being carried to temperatures above the softening ranges of the polymers and above the decomposition points of the expanding and crosslinking agents to provide an expandable polymeric melt, the pressure is removed and the volume of the mould is then enlarged from 3-35 times that of the resulting expandable melt within a period of from a fraction of a second to 20 seconds and the foam is then cooled. In the examples mixtures of the polymers with ethoxylated soya bean oil, lead stearate, tribasic lead sulphate, azodicarbonamide, 1,3 - bis - (tbutylperoxyisopropyl)benzene and/or pcarbomethoxy - N - nitroso - N - methylbenzamide, were made either on rolls or in an extruder. The resultant crepes or granules were then foamed in moulds, as shown in Figs. 2 and 4, where loose base-plate 2 has located thereon interconnected side walls 1, a heated plunger 3 is inserted down to the level of the polymer mixture 4 and is attached to upper part 5 of a press, plate 2 lying on the lower part 6; plate 7 hermetically seals the mould and stop pins 8 determine the level to which plate 7 can be raised; the polymer mixture is heated by electrical means 10. The products may be used as insulating materials, fillings for expansion joints, pipe lagging, sound proofed partitions, floats (life belts), and wall panels.
GB3193072A 1971-07-09 1972-07-07 Manufacture of foams of chlorinated polymers Expired GB1387136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712134211 DE2134211A1 (en) 1971-07-09 1971-07-09 PROCESS FOR THE PRODUCTION OF FOAMS FROM CHLORINATED POLYMERIZES

Publications (1)

Publication Number Publication Date
GB1387136A true GB1387136A (en) 1975-03-12

Family

ID=5813138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3193072A Expired GB1387136A (en) 1971-07-09 1972-07-07 Manufacture of foams of chlorinated polymers

Country Status (7)

Country Link
AT (1) AT315510B (en)
BE (1) BE785996A (en)
CA (1) CA986670A (en)
DE (1) DE2134211A1 (en)
FR (1) FR2145515B1 (en)
GB (1) GB1387136A (en)
IT (1) IT961316B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108948238A (en) * 2018-08-29 2018-12-07 江苏德邦工程有限公司 A kind of method preparing chliorinated polyvinyl chloride and its preparation facilities

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT367082B (en) * 1980-04-21 1982-05-25 Egger K Kunststoffwerk METHOD FOR PRODUCING FOAM BODIES
EP2824134B1 (en) 2013-07-09 2015-09-09 Armacell Enterprise GmbH & Co. KG Compressible fire retardant foam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108948238A (en) * 2018-08-29 2018-12-07 江苏德邦工程有限公司 A kind of method preparing chliorinated polyvinyl chloride and its preparation facilities
CN108948238B (en) * 2018-08-29 2023-06-30 江苏德邦工程有限公司 Method for preparing chlorinated polyvinyl chloride and preparation device thereof

Also Published As

Publication number Publication date
CA986670A (en) 1976-04-06
FR2145515B1 (en) 1976-08-06
AT315510B (en) 1974-05-27
BE785996A (en) 1973-01-08
FR2145515A1 (en) 1973-02-23
IT961316B (en) 1973-12-10
DE2134211A1 (en) 1973-01-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees