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GB896901A - Improvements in or relating to the manufacture of polymeric materials - Google Patents

Improvements in or relating to the manufacture of polymeric materials

Info

Publication number
GB896901A
GB896901A GB34258/59A GB3425859A GB896901A GB 896901 A GB896901 A GB 896901A GB 34258/59 A GB34258/59 A GB 34258/59A GB 3425859 A GB3425859 A GB 3425859A GB 896901 A GB896901 A GB 896901A
Authority
GB
United Kingdom
Prior art keywords
methyl
mixture
polysiloxane
phenyl
diisocyanates
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
GB34258/59A
Inventor
John Francis Wood
George Woods
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB34258/59A priority Critical patent/GB896901A/en
Priority to BE595810A priority patent/BE595810A/en
Priority to FR840665A priority patent/FR1270169A/en
Priority to NL256666A priority patent/NL256666A/en
Publication of GB896901A publication Critical patent/GB896901A/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
    • C08J9/0061—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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers

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)

Abstract

A process for the manufacture of foamed, cellular polyurethane materials by the interaction of organic polyisocyanates with hydroxyl group-containing polymers, is characterized in that the interaction is carried out in the presence of a methyl/phenyl polysiloxane. Between 0,005% and 5%, preferably 0,02% to 1% by weight of the polysiloxane, based on the weight of the total reaction mixture, may be used. The polymer may be, for example, a polyester, polyesteramide or polyether. The reaction mixture may also contain catalysts, surface-active agents, foam stabilizers, plasticizers such as dioctyl phthalate and fire-proofing agents such as tri chlorethyl phosphate. In typical examples (1) a methyl/phenyl polysiloxane in which the ratio of the number of methyl to phenyl groups is about 3 to 1 is dissolved in a prepolymer from a mixture of polypropylene glycol and oxypropylated glycerol and tolylene-2:4 and 2:6-diisocyanates. Foaming is effected by continuously blending the mixture with a mixture of water, dimethylcyclohexylamine and an octyl phenol/ethylene oxide reaction product: (2) toluene 2:4 and 2:6 diisocyanates are added to polypropylene glycol in which dimethylbenzylamine and methyl/phenyl polysiloxane has been dissolved. After 24 hours foaming is effected by adding a solution of N-methylpyrrolidine and an octylphenol/ethylene oxide reaction product in water.ALSO:A process for the manufacture of foamed cellular polyurethane materials by the interaction of organic polyisocyanates with hydroxyl group-containing polymers is characterized in that the interaction is carried out in the presence of a methyl/phenyl polysiloxane. Between 0,005% and 5%, preferably 0,02% to 1% by weight of the polysiloxane, based on the total weight of the reaction mixture may be used. The polymer may be, for example, a polyester, polyesteramide or polyether. The reaction mixture may also contain catalysts, surface-active agents, foam stabilizers, plasticizers such as dioctyl phthalate and fire-proofing agents such as tr-chlorethylphosphate. In typical examples (1) a methyl/phenyl polysiloxane in which the ratio of the number of methyl to phenyl groups is about 3:1 is dissolved in a prepolymer from a mixture of polypropylene glycol and oxypropylated glycerol and tolylene-2:4 and 2:6-diisocyanates. Foaming is effected by continuously blending the mixture with a mixture of water, dimethylcyclohexylamine and an octylphenol/ethylene oxide reaction product; (2) toluene 2:4- and 2:6-diisocyanates are added to polypropylene glycol in which dimethylbenzylamine and methyl/phenyl polysiloxane have been dissolved. After 24 hours foaming is effected by adding a solution of N-methyl-pyrrolidine and an octylphenol/ethylene oxide reaction product in water.
GB34258/59A 1959-10-09 1959-10-09 Improvements in or relating to the manufacture of polymeric materials Expired GB896901A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB34258/59A GB896901A (en) 1959-10-09 1959-10-09 Improvements in or relating to the manufacture of polymeric materials
BE595810A BE595810A (en) 1959-10-09 1960-10-06 Improvement in the manufacture of polymer materials
FR840665A FR1270169A (en) 1959-10-09 1960-10-08 Further development in the manufacture of cellular polyurethane foams
NL256666A NL256666A (en) 1959-10-09 1960-10-08 Method for the preparation of polymeric materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34258/59A GB896901A (en) 1959-10-09 1959-10-09 Improvements in or relating to the manufacture of polymeric materials

Publications (1)

Publication Number Publication Date
GB896901A true GB896901A (en) 1962-05-23

Family

ID=10363398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34258/59A Expired GB896901A (en) 1959-10-09 1959-10-09 Improvements in or relating to the manufacture of polymeric materials

Country Status (4)

Country Link
BE (1) BE595810A (en)
FR (1) FR1270169A (en)
GB (1) GB896901A (en)
NL (1) NL256666A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2221811A1 (en) * 1972-05-04 1973-11-22 Bayer Ag Process for the production of flameproof foams containing urethane groups
US4350777A (en) 1980-03-28 1982-09-21 Bayer Aktiengesellschaft Impermeable molded articles of cellular polyurethane elastomers produced with organofunctional polysiloxane-derivatives and their use as spring elements

Also Published As

Publication number Publication date
NL256666A (en) 1964-04-10
BE595810A (en) 1961-04-06
FR1270169A (en) 1961-08-25

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