GB908608A - - Google Patents

Info

Publication number
GB908608A
GB908608A GB30740/60A GB3074060A GB908608A GB 908608 A GB908608 A GB 908608A GB 30740/60 A GB30740/60 A GB 30740/60A GB 3074060 A GB3074060 A GB 3074060A GB 908608 A GB908608 A GB 908608A
Authority
GB
United Kingdom
Prior art keywords
polyisocyanate
polyhydric
hydroxyl groups
glycols
adduct
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
GB30740/60A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB908608A publication Critical patent/GB908608A/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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/80—Masked polyisocyanates
    • C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
    • C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
    • C08G18/8009—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
    • C08G18/8022—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203 with polyols having at least three hydroxy groups
    • C08G18/8029—Masked aromatic polyisocyanates
    • 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
    • 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
    • C08G18/48—Polyethers
    • C08G18/4829—Polyethers containing at least three hydroxy groups
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/776—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur phosphorus
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/7806—Nitrogen containing -N-C=0 groups
    • C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
    • C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret groups
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/005—< 50kg/m3
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

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)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A process for the preparation of cellular polyurethane plastics comprises (i) reacting a polyhydric polyalkylene ether containing at least three alcoholic hydroxyl groups with an organic polyisocyanate containing at least three free -NCO groups, the amount of the polyisocyanate being only sufficient to react with less than 30% of the hydroxyl groups of the polyhydric polyalkylene ether to form an initial adduct and (ii) reacting this adduct with an organic polyisocyanate and water, the amount of polyisocyanate used in step (ii) being in excess of that necessary to react with all the free hydroxyl groups of the initial adduct. The polyhydric ethers may be used in conjunction with polyalkylene glycols. The polyhydric ethers can be prepared from an alkylene oxide, such as ethylene, propylene, butylene or styrene oxide or epichlorhydrin and an amino alcohol, polyamine or polyalcohol. The glycols can be formed from such oxides per se, or together with divalent amines, amino alcohols or glycols. The triisocyanates listed include reaction products of triols with diisocyanates, p,p1,p11-tri-(isocyanatophenyl) phosphate and biuret polyisocyanates such as those described in Specification 876,503. The products of the first stage, before foaming, can be dissolved in toluene, benzene, o-dichlorobenzene, chlorobenzene, chloroform or gasoline. In the second stage an organic diisocyanate can be used instead of or in addition to triisocyanates. Emulsifiers, including the silicones described in Specification 804,369 can be added in the foaming step. Paraffin oils, fillers, flame-proofing agents and plasticizers can also be added. As catalysts there can be used tertiary amines, alkali metal hydroxides, carbonates, phenolates and alcoholates and organotin compounds. Examples describe the preparation of foams from (2) propoxylated trimethylol propane which has been reacted with 10 equivalent per cent of p,p1,p11-triisocyanato triphenyl phosphate, toluylene-2,4 and 2,6-diisocyanates, water, silicone-alkylene oxide copolymer, endoethylene piperazine and Sn (II)-ethylhexoate; (5) a propylene oxide addition product of glycerine which has been reacted with a biuret polyisocyanate (a reaction product of hexamethylene diisocyanate and salicylic acid). Specification 769,682 also is referredALSO:A process for the preparation of cellular polyurethane plastics comprises (i) reacting a polyhydric polyalkylene ether containing at least three alcoholic hydroxyl groups with an organic polyisocyanate containing at least three free-NCO groups, the amount of the polyisocyanate being only sufficient to react with less than 30% of the hydroxyl groups of the polyhydric polyalkylene ether to form an initial adduct and (ii) reacting this adduct with an organic polyisocyanate and water, the amount of polyisocyanate used in step (ii) being in excess of that necessary to react with all the free hydroxyl groups of the initial adduct. The polyhydric ethers may be used in conjunction with polyalkylene glycols. The polyhydric ethers can be prepared from an alkylene oxide, such as ethylene, propylene, butylene or styrene oxide or epichlorhydrin and an aminoalcohol, polyamine or polyalcohol. The glycols can be prepared from such oxides per se, or together with divalent amines, aminoalcohols, or glycols. The triisocyanates listed include reaction products of triols with diisocyanates, p, p1, p11-tri-(isocyanatophenyl) phosphate and biuret polyisocyanates such as those described in Specification 876,503. The products of the first stage, before foaming, can be dissolved in toluene, benzene, o-dichlorobenzene, chlorobenzene, chloroform or gasoline. In the second stage an organic diisocyanate can be used instead of or in addition to triisocyanates. Emulsifiers, including the silicones described in Specification 804,369 can be added in the foaming step. Paraffin oils, fillers, flameproofing agents and plasticizers can also be added. As catalysts there can be used tertiary amines, alkali metal hydroxides, carbonates, phenolates and alcoholates and organo-tin compounds. Examples describe the preparation of foams from (2) propoxylated trimethylol propane which has been reacted with 10 equivalent per cent of p, p1, p11-triisocyanato triphenyl phosphate, toluylene-2, 4 and 2, 6-diisocyanates, water, silicone-alkylene oxide copolymer, endoethylene piperazine and Sn(II)-ethylhexoate; (5) a propylene oxide addition product of glycerine which has been reacted with a biuret polyisocyanate (a reaction product of hexamethylene diisocyanate and salicyclic acid). Specification 769,682 also is referred to.
GB30740/60A 1959-09-10 1960-09-06 Expired GB908608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF29354A DE1106953B (en) 1959-09-10 1959-09-10 Process for the production of foams containing urethane groups

Publications (1)

Publication Number Publication Date
GB908608A true GB908608A (en) 1962-10-24

Family

ID=7093271

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30740/60A Expired GB908608A (en) 1959-09-10 1960-09-06

Country Status (3)

Country Link
DE (1) DE1106953B (en)
FR (1) FR1266973A (en)
GB (1) GB908608A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE547375A (en) * 1955-04-29

Also Published As

Publication number Publication date
DE1106953B (en) 1961-05-18
FR1266973A (en) 1961-07-17

Similar Documents

Publication Publication Date Title
US3535307A (en) High molecular weight polyether blocked polymers
US3928258A (en) Preparation of low friability rigid polyurethane foam
GB843841A (en) Polyurethane foams
GB957946A (en) Polyurethanes derived from polyether polyols
GB1456805A (en) Flame retardant flexible polyurethane foams
GB1048312A (en) A process for making polyether polyurethane foams
GB1092958A (en) Rigid polyurethane foams
GB1046512A (en) Improvements in and relating to polyurethanes
GB1492144A (en) Rigid foams and production thereof
SE7702877L (en) PROCEDURE FOR PREPARING POLYURETHANE CELL PLASTS
US4585807A (en) Rigid polyurethane foams employing oxyalkylated ethylenediamine
US5356943A (en) Rigid foams
US4273882A (en) Preparation of thermally stable rigid polyurethane foam
US4228310A (en) Polyol preparation
EP0398304B1 (en) Flexible polyurethane foams and process for preparing them
US3331791A (en) Polyurethane foams produced from monoamine triols
US3998766A (en) Urethane modified carbodimide-isocyanurate foams from organic polyisocyanates and oxyalkylated mannich polyols
US3933698A (en) Preparation of low friability rigid polyurethane foam
US3036022A (en) Process for the production of polyurethane foams
GB908608A (en)
GB1034263A (en) Process for the production of synthetic elastic polyurethanes
US4555531A (en) Rigid polyurethane foams employing alkylene oxide adducts of alkanolamines
GB995046A (en) A process for the production of polyurethane synthetic resins
GB1055271A (en) Polyurethanes
US3346517A (en) Polyurethanes formed from fatty amine polyols