GB1293833A - Process for the production of polyurethane moldings - Google Patents

Process for the production of polyurethane moldings

Info

Publication number
GB1293833A
GB1293833A GB56476/70A GB5647670A GB1293833A GB 1293833 A GB1293833 A GB 1293833A GB 56476/70 A GB56476/70 A GB 56476/70A GB 5647670 A GB5647670 A GB 5647670A GB 1293833 A GB1293833 A GB 1293833A
Authority
GB
United Kingdom
Prior art keywords
mixture
suitably
blowing agent
liquids
liquid
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
GB56476/70A
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.)
Milacron Inc
Original Assignee
Milacron 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 Milacron Inc filed Critical Milacron Inc
Publication of GB1293833A publication Critical patent/GB1293833A/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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/147—Halogen containing compounds containing carbon and halogen atoms only
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/043—Skinned foam
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

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

Abstract

1293833 Polyurethane foams CINCINNATI MILACRON Inc 27 Nov 1970 [3 Dec 1969] 56476/70 Headings C3C and C3R Polyurethane foams are prepared by (1) mixing a polyisocyanate, a polyol and a blowing agent; (2) passing the resultant liquid as a substantially non-reacted, non-expanded liquid mixture into the cavity of a closable mould; (3) allowing the liquid to expand and fill the cavity of the closed mould as the polyurethane is formed and (4) curing and removing the resultant moulded article, the blowing agent being a mixture of stable volatile organic liquids of differing volatilities, which liquids have atmospheric boiling points from - 50‹ to 120‹ F., the blowing agent after being mixed with the polyisocyanate and polyol exhibiting a vapour pressure of not greater than 1 atmosphere at 110‹ F. The blowing agent is most suitably a mixture of two organic liquids, one having a boiling point of 30‹ to 120‹ F. and the other a boiling point of - 50‹ to 50‹ F., the difference between their boiling points being 30‹ to 150‹ F. Suitably the liquids are fluorocarbons, chlorofluorocarbons, bromofluorocarbons or perfluorocarbons and most suitably the mixture is one of dichlorodifluoromethane and trichloromonofluoromethane. Numerous other mixtures are listed. Conventional polyisocyanates and polyols are used and the reaction mixture suitably contains a surface-active dispersing agent and/or a catalyst for urethane polymerization.
GB56476/70A 1969-12-03 1970-11-27 Process for the production of polyurethane moldings Expired GB1293833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88182369A 1969-12-03 1969-12-03

Publications (1)

Publication Number Publication Date
GB1293833A true GB1293833A (en) 1972-10-25

Family

ID=25379293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56476/70A Expired GB1293833A (en) 1969-12-03 1970-11-27 Process for the production of polyurethane moldings

Country Status (8)

Country Link
JP (1) JPS4947920B1 (en)
CA (1) CA936662A (en)
DE (1) DE2057535A1 (en)
FR (1) FR2070239B1 (en)
GB (1) GB1293833A (en)
NL (1) NL7017337A (en)
SE (1) SE366934B (en)
ZA (1) ZA707944B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2429090A1 (en) * 1973-06-18 1975-01-09 Union Carbide Corp ALKYL ALKANOATE AS A BLOWING AGENT FOR POLYURETHANE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2268045A1 (en) * 1974-04-19 1975-11-14 Du Pont Blowing agent for polyurethane foams - comprising trichloro-fluoromethane, ethyl chloride and methylene chloride
US5001164A (en) * 1988-08-19 1991-03-19 The Dow Chemical Company Polyurethane foam prepared with reduced levels of hard halocarbon blowing agents

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB980292A (en) * 1962-08-13 1965-01-13 Ici Ltd Improvements in or relating to the manufacture of polymeric materials
US3208958A (en) * 1963-03-04 1965-09-28 Pacific Vegets Le Oil Corp Method and apparatus for producing plastic foam
GB1162517A (en) * 1965-11-12 1969-08-27 Dunlop Co Ltd Process for the production of Polyurethane Foams

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2429090A1 (en) * 1973-06-18 1975-01-09 Union Carbide Corp ALKYL ALKANOATE AS A BLOWING AGENT FOR POLYURETHANE

Also Published As

Publication number Publication date
CA936662A (en) 1973-11-13
FR2070239A1 (en) 1971-09-10
SE366934B (en) 1974-05-13
JPS4947920B1 (en) 1974-12-18
ZA707944B (en) 1971-10-27
DE2057535A1 (en) 1972-06-08
FR2070239B1 (en) 1975-02-21
NL7017337A (en) 1971-06-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee