GB1035891A - Improvements in or relating to the manufacture of polyurethanes - Google Patents

Improvements in or relating to the manufacture of polyurethanes

Info

Publication number
GB1035891A
GB1035891A GB141464A GB141464A GB1035891A GB 1035891 A GB1035891 A GB 1035891A GB 141464 A GB141464 A GB 141464A GB 141464 A GB141464 A GB 141464A GB 1035891 A GB1035891 A GB 1035891A
Authority
GB
United Kingdom
Prior art keywords
styrene
prepared
methyl
ether
vinyl
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
GB141464A
Inventor
Herbert Gudgeon
Raymond Joseph Marklow
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 GB141464A priority Critical patent/GB1035891A/en
Priority to DE1965J0027328 priority patent/DE1260783B/en
Publication of GB1035891A publication Critical patent/GB1035891A/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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • 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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds

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)

Abstract

Polyurethanes are prepared by reacting an organic polyisocyanate with a polyol which has been prepared by telomerization of a negatively substituted olefin with an aldehyde in the presence of a cationic polymerization catalyst. The negatively substituted olefin is defined as any ethylenically unsaturated compound in which one of the ethylenic carbon atoms carries an electron attracting substituent, e.g. a halogen atom or the oxygen atoms present in vinyl ethers, carboxylic acid ester groups present in vinyl esters, nitrile groups, unsaturated aliphatic hydrocarbon radicals present in styrene. Olefins specified are: 1,3-butadiene, isoprene, vinyl acetate, methyl vinyl ether, ethyl vinyl ether, divinyl ether, diisopropenyl ether and 3,4 - dihydro - 2H - pyran - 2 - methyl - (3,4-dihydro - 2H - pyran - 2 - carboxylate), styrene a -methyl styrene, vinyltoluenes, divinylbenzenes. Cationic polymerization catalysts specified are: suphuric acid and Lewis acids, e.g. BF3, AlCl3 and SnCl4. The aldehyde may be formaldehyde or acetaldehyde or paraformaldehyde. The polyols produced may have a M.W. of 200-15,000 and are reacted with polyisocyanates, optionally in admixture with other polyols and blowing agents, to form poly-urethane coatings or foams. In Example (1) a polyol prepared by the telomerization of styrene with formaldehyde, water, trichloro-fluoromethane, siloxane, stannous octoate and crude diphenyl methane diisocyanate were mixed and allowed to react to form a foam.
GB141464A 1964-01-13 1964-01-13 Improvements in or relating to the manufacture of polyurethanes Expired GB1035891A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB141464A GB1035891A (en) 1964-01-13 1964-01-13 Improvements in or relating to the manufacture of polyurethanes
DE1965J0027328 DE1260783B (en) 1964-01-13 1965-01-13 Process for the production of polyurethanes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB141464A GB1035891A (en) 1964-01-13 1964-01-13 Improvements in or relating to the manufacture of polyurethanes
GB141465 1965-01-04

Publications (1)

Publication Number Publication Date
GB1035891A true GB1035891A (en) 1966-07-13

Family

ID=26236726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB141464A Expired GB1035891A (en) 1964-01-13 1964-01-13 Improvements in or relating to the manufacture of polyurethanes

Country Status (2)

Country Link
DE (1) DE1260783B (en)
GB (1) GB1035891A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135321A (en) * 1973-04-04 1974-12-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135321A (en) * 1973-04-04 1974-12-26
JPS547094B2 (en) * 1973-04-04 1979-04-04

Also Published As

Publication number Publication date
DE1260783B (en) 1968-02-08

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