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GB1410609A - Polyurethanes - Google Patents

Polyurethanes

Info

Publication number
GB1410609A
GB1410609A GB5633672A GB5633672A GB1410609A GB 1410609 A GB1410609 A GB 1410609A GB 5633672 A GB5633672 A GB 5633672A GB 5633672 A GB5633672 A GB 5633672A GB 1410609 A GB1410609 A GB 1410609A
Authority
GB
United Kingdom
Prior art keywords
organic
present
cyclic
hydroxyl
polyurethanes
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
GB5633672A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1410609A publication Critical patent/GB1410609A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/0838Manufacture of polymers in the presence of non-reactive compounds
    • C08G18/0842Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30Low-molecular-weight compounds
    • C08G18/32Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203Polyhydroxy compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/80Masked polyisocyanates
    • C08G18/8003Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
    • C08G18/8006Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
    • C08G18/8009Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1410609 Polyurethanes DOW CHEMICAL CO 6 Dec 1972 [7 Dec 1971] 56336/72 Heading C3R Solid, rigid polyurethanes are prepared by reacting (A) a polyol containing 2 hydroxyl groups per molecule and having a hydroxyl equivalent weight of less than 250 with (B) an organic polyisocyanate having an isocyanate functionality of at least 2.5, in the presence of a liquid, (C) having a boiling point of at least 150‹ C. and being selected from aromatic compounds, partially hydrogenated aromatic compounds, organic carbonates, halogenated aliphatic hydrocarbons, hydroxyl containing halogenated aliphatic hydrocarbons, cyclic ethers, fatty acids, fatty oils, esters of carboxylic acids, organic phosphates, organic phosphites, organic phosphonates and cyclic sulphones and (D) an organometallic catalyst for promoting urethane formation, the (A) and (B) components being present so as to provide an NCO/OH ratio of 0.8 : 1 to 1.5 : 1, the (C) component being present in a proportion to provide a reaction mixture the exotherm of which does not raise the temperature above the distortion temperature of the urethane resin and the catalyst (D) present in an amount of 0.01 to 10% of the sum of the weights of (A), (B) and (C). The dihydroxy compound (A) may be an alkylene glycol, diethylene glycol, dipropylene glycol, bisphenol A, resorcinol, catechol, hydroquinone or adducts of such compounds with a vicinal epoxy compound. Suitable polyisocyanates (B) are polymethylene polyphenyl isocyanates and reaction products of an excess of an organic diisocyanate with a polyhydroxyl compound containing 3 to 8 OH groups. Numerous liquids (C) are listed, those exemplified being chloronaphthalene, propylene carbonate, the cyclic tetramer of ethylene oxide, tributyl phosphite, tricresyl phosphate, tall oil, dioctyl phthalate, methyl abietate, dimethyl adipate and hexachlorobutadiene. Conventional catalysts (D) are used. The polyurethaneforming compositions are useful as casting materials.
GB5633672A 1971-12-07 1972-12-06 Polyurethanes Expired GB1410609A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20569771A 1971-12-07 1971-12-07

Publications (1)

Publication Number Publication Date
GB1410609A true GB1410609A (en) 1975-10-22

Family

ID=22763270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5633672A Expired GB1410609A (en) 1971-12-07 1972-12-06 Polyurethanes

Country Status (12)

Country Link
JP (1) JPS4865299A (en)
AR (1) AR192545A1 (en)
BE (1) BE792409A (en)
BR (1) BR7208592D0 (en)
CA (1) CA1011008A (en)
DE (1) DE2258912A1 (en)
ES (1) ES409292A1 (en)
FR (1) FR2162512B1 (en)
GB (1) GB1410609A (en)
IT (1) IT973882B (en)
NL (1) NL7216340A (en)
ZA (1) ZA728064B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19739191A1 (en) * 1997-09-08 1999-03-11 Henkel Kgaa Use of foam-free compositions containing polyurethanes for the production of casting resins and coating compositions

Also Published As

Publication number Publication date
BE792409A (en) 1973-06-07
FR2162512B1 (en) 1975-01-03
IT973882B (en) 1974-06-10
ZA728064B (en) 1973-07-25
JPS4865299A (en) 1973-09-08
FR2162512A1 (en) 1973-07-20
CA1011008A (en) 1977-05-24
NL7216340A (en) 1973-06-12
AU4898872A (en) 1974-05-23
BR7208592D0 (en) 1973-09-13
DE2258912A1 (en) 1973-06-14
ES409292A1 (en) 1976-03-16
AR192545A1 (en) 1973-02-21

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Legal Events

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