GB791956A - Reaction products of polymers with polyisocyanates or polyisothiocyanates - Google Patents

Reaction products of polymers with polyisocyanates or polyisothiocyanates

Info

Publication number
GB791956A
GB791956A GB1809354A GB1809354A GB791956A GB 791956 A GB791956 A GB 791956A GB 1809354 A GB1809354 A GB 1809354A GB 1809354 A GB1809354 A GB 1809354A GB 791956 A GB791956 A GB 791956A
Authority
GB
United Kingdom
Prior art keywords
acid
added
mixture
acid phosphate
milled
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
GB1809354A
Inventor
Frederick Arthur Jones
Wilfred Cooper
Daniel Owen Bowen
William Alun Griffiths
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber 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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB1809354A priority Critical patent/GB791956A/en
Priority to DED20725A priority patent/DE1030557B/en
Priority to FR1135314D priority patent/FR1135314A/en
Publication of GB791956A publication Critical patent/GB791956A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/089—Reaction retarding agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Synthetic elastomers are prepared from a reaction product of a polyester, polyether or polyesteramide and a polyisocyanate or polyisothiocyanate in admixture with an acid ester of a phosphoric acid by neutralizing the acid ester which retards setting of the reaction product and then moulding the mixture. The stabilized mixtures retain the capacity for being milled to form sheets for long periods. Pre ferred esters are the mono- and di-alkyl esters of orthophosphoric acid, the alkyl groups of which contain 2-18 carbon atoms. Polyisocyanate may be reacted with polyester in two stages-one before addition of the acid ester and the other before its neutralization. If desired an organic acid chloride may be added to the reaction mixture as described in Specification 790,543. Preferably the acid phosphate is added to the hot reaction product and the acid chloride added by subsequent cold milling. Suitable bases for neutralizing the acid phosphates are diphenylamine, p-phenylenediamine, diphenylguanidine, guanidine, aniline, piperidine, benzylidene, dipiperidine, aminopyridine, 2,2 - dipyridylamine, 2 - amino - 4,6-dimethylpyridine, urea, hexamethylene tetramine, hydrazine hydrate, magnesium oxide, calcium hydroxide, and ammonium carbonate. In the Examples: (1) hot dehydrated polyethylene glycol wax mixed with naphthalene-1.5-diisocyanate followed by 1.4-butylene glycol as a cross-linking agent. Butyl acid phosphate was added. The mixture was heated, milled and divided into four parts which were milled to give sheets after various periods of storage, the sheets being moulded after neutralization of the acid phosphate with diphenylamine; (2) is similar to (1) but the cross-linking agent was added as an amine or mixture of amines in excess of the amount required to neutralize the butyl acid phosphate; (3) is also similar but employs a mixture of mono-ethyl and di-ethyl hydrogen phosphates; (4), (5) and (6) are similar to (2) but illustrate the addition of p-nitro-benzoyl chloride as well as butyl acid phosphate.
GB1809354A 1954-06-21 1954-06-21 Reaction products of polymers with polyisocyanates or polyisothiocyanates Expired GB791956A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1809354A GB791956A (en) 1954-06-21 1954-06-21 Reaction products of polymers with polyisocyanates or polyisothiocyanates
DED20725A DE1030557B (en) 1954-06-21 1955-06-21 Process for increasing the shelf life of linear isocyanate- or isothiocyanate-modified polyesters, polyesteramides or polyaethers which can be crosslinked to form elastomers
FR1135314D FR1135314A (en) 1954-06-21 1955-06-21 Reaction products of polymers with polyisocyanates or polyisothiocyanates and process for their preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1809354A GB791956A (en) 1954-06-21 1954-06-21 Reaction products of polymers with polyisocyanates or polyisothiocyanates

Publications (1)

Publication Number Publication Date
GB791956A true GB791956A (en) 1958-03-19

Family

ID=10106536

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1809354A Expired GB791956A (en) 1954-06-21 1954-06-21 Reaction products of polymers with polyisocyanates or polyisothiocyanates

Country Status (3)

Country Link
DE (1) DE1030557B (en)
FR (1) FR1135314A (en)
GB (1) GB791956A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1118448B (en) * 1957-08-09 1961-11-30 Bayer Ag Process for increasing the shelf life of synthetic resins containing isocyanate groups and urethane groups
US3525705A (en) * 1959-04-20 1970-08-25 Mobil Oil Corp Flame-resistant polyurethanes prepared from certain phorphorus compounds
DE1254794B (en) * 1964-02-12 1967-11-23 Bayer Ag Extension of the service life of two-component polyurethane paints
US4258169A (en) * 1980-03-26 1981-03-24 The Upjohn Company Polyisocyanate compositions containing in-situ formed pyrophosphate mold release agent and process of making

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB731071A (en) * 1951-07-19 1955-06-01 Du Pont Preparation of elastomers from polyalkylene ether glycols and diisocyanates

Also Published As

Publication number Publication date
DE1030557B (en) 1958-05-22
FR1135314A (en) 1957-04-26

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