GB893179A - Polyurethane plastics - Google Patents

Polyurethane plastics

Info

Publication number
GB893179A
GB893179A GB1243660A GB1243660A GB893179A GB 893179 A GB893179 A GB 893179A GB 1243660 A GB1243660 A GB 1243660A GB 1243660 A GB1243660 A GB 1243660A GB 893179 A GB893179 A GB 893179A
Authority
GB
United Kingdom
Prior art keywords
glycol
diisocyanate
ethylene
diamine
water
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
GB1243660A
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 GB893179A publication Critical patent/GB893179A/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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • 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
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
    • C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
    • 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
    • C08G2250/00—Compositions for preparing crystalline polymers

Abstract

Polyurethane elastomers are made by reacting an organic polyisocyanate and a cross-linking agent which contains in the molecule at least two active hydrogen containing groups which are reactive with isocyanate groups, with a hydroxyl polyester under such conditions that a substantially non-cellular product results, the polyester containing at least two free hydroxyl groups per molecule, having an acid number up to 3, an hydroxyl number between 30 and 120, a molecular weight of at least 750 and being made by reacting ethylene glycol and 1,4-butylene glycol with adipic acid, the molar ratio of ethylene glycol to butylene glycol being from 1:6 to 2:1. Many organic polyisocyanates are specified, examples being 3,31-diisocyanate dipropyl ether, cyclohexylene-1,4-diisocyanate, diphenyl-4,6,41-triisocyanate, p-phenylene diisocyanate and ethylene diisocyanate. Specified cross-linking agents are water, ethylene glycol, propylene glycol, butylene glycol, amylene glycol, trimethylol propane, diethylene glycol, triethylene glycol, pentaglycol, glycerol, sorbitol, triethanolamine di-(b -hydroxyethyl)ether, ethanolamine, 3-aminopropanol, 5-aminopentanol-1, 6-aminohexanol, 6-amino-5-methyl-hexanol-1, 10-aminodecanol, p-hydroxymethylbenzylamine, ethylene diamine, hexamethylene diamine, 3-methylhexamethylene diamine, decamethylene diamine, m-phenylene diamine and hydrazine. In the examples, polyesters derived from butane-1,4-diol, ethylene glycol and adipic acid are reacted with:-(1) to (3) a mixture of 2:4- and 2:6-toluylene diisocyanate in the presence of water, the product being mixed with dimeric 2:4 toluylene diisocyanate and vulcanized by heating; (4) 1,5-naphthylene diisocyanate and butane-1,4-diol in a mould; (5) 1,5-naphthylene diisocyanate and water, the foamed product being compressed into a sheet and aired and (6) and (7) 1,5-naphthylene diisocyanate and butane -1,4-diol in a mould. Specification 700,608 is referred to.ALSO:Polyurethane elastomers are made by reacting on organic poldisocyanate and a cross-linking agent which contains in the moleucle at least two active hydrogen containing groups which are reactive with isocyanate groups, with a hydroxy polyester under such conditions that a substantially non-cellular product results, the polyester containing at least two free hydroxyl groups per molecule, having an acid number up to 3, an hydroxyl number between 30 and 120, a molecular weight of at least 750 and being made by reacting ethylene and 1,4 butylene glycol with adipic acid, the molar ratio of ethylene glycol to butylene glycol being from 1 : 6 to 2 : 1. Many organic polyisocyanates are specified, examples being 3,31-diisocyanate dipropyl ether, cyclohexylene-1,4-diisocyanate, diphenyl-4,6,41-triisocyanate, p-phenylene diisocyanate and ethylene diisocyanate. Specified cross-linking agents are water, ethylene glycol, propylene glycol, butylene glycol, amylene glycol, trimethylol propane, diethylene glycol, triethylene glycol, pentaglycol, glycerol, sorbitol, triethanolamine, at (b -hydroxyethyl) ether, ethanolamine, 3-aminopropanol, 5-aminopentanol-1, 6-amino-hexanol, 6-amino-5-methyl-hexanol-1, 10-aminodecanol, p-hydroxymethyl benzylamine, ethylene diamine, hexamethylene diamine, 3-methyl-hexamethylene diamine, decamethylene diamine, m-phenylene diamine and hydrozine. In Example (5) a polyester derived from adipic acid, ethylene glycol and butylene-1,4-glycol is reacted with 1,5-naphthylene diisocyanate and water to form to foamed product which is compressed into a sheet and cured.
GB1243660A 1959-04-14 1960-04-07 Polyurethane plastics Expired GB893179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF28194A DE1106488B (en) 1959-04-14 1959-04-14 Process for the production of homogeneous, rubber-elastic plastics

Publications (1)

Publication Number Publication Date
GB893179A true GB893179A (en) 1962-04-04

Family

ID=7092774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1243660A Expired GB893179A (en) 1959-04-14 1960-04-07 Polyurethane plastics

Country Status (2)

Country Link
DE (1) DE1106488B (en)
GB (1) GB893179A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE626729A (en) * 1962-01-02
BE636685A (en) * 1962-08-28
BE637982A (en) * 1962-10-01

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU33996A1 (en) * 1955-05-23

Also Published As

Publication number Publication date
DE1106488B (en) 1961-05-10

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