GB804067A - Process for the production of cross-linked elastomers - Google Patents

Process for the production of cross-linked elastomers

Info

Publication number
GB804067A
GB804067A GB349456A GB349456A GB804067A GB 804067 A GB804067 A GB 804067A GB 349456 A GB349456 A GB 349456A GB 349456 A GB349456 A GB 349456A GB 804067 A GB804067 A GB 804067A
Authority
GB
United Kingdom
Prior art keywords
glycol
modified
isocyanate groups
isocyanate
reacted
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
GB349456A
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 GB804067A publication Critical patent/GB804067A/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
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7678—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing condensed aromatic rings
    • 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
    • C08G18/42—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
    • C08G2380/00—Tyres
    • 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
    • C08G2410/00—Soles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Diaphragms And Bellows (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

In a process for the production of cross-linked elastomers of high molecular weight, an isocyanate-modified linear polyester containing terminal isocyanate groups is reacted with an amount less than that necessary to react with all the isocyanate groups of the modified polyester, of a mixture of (a) an organic compound having only two groups capable of reacting with isocyanate groups, and (b) a trihydric alcohol. As compounds with only two groups capable of reacting with isocyanate groups there are mentioned 1,3- and 1,4-butanediols, 1,4-butendiol, 1,4-butinediol, 1,6-hexanediol, quinitol and hexahydroquinitol, and difunctional alcohols or amines the carbon chain of which is interrupted by hetero atoms such as O, N, S and SO2. Suitable trihydric alcohols are trimethylol glycol, trimethylol propane (C2H5.C(CH2OH)3), hexanetriol ((CH3CHOH)2-CH-CH2CH2OH), triethanolamine, triisopropanolamine and trihydric alcohols the carbon chains of which may be interrupted by hetero atoms. Typical isocyanate-modified polyesters which can be used are those described in Specification 700,608. In their preparation there may be reacted ethylene glycol, diethylene glycol, propylene glycol-1,3, butylene glycol-1,4, hexamethylene glycol, methylhexanediol-1,6, 2,21-dimethyl - 1,3 - propylene glycol and thiodiglycol; malonic, succinic, adipic, methyladipic, maleic, dihydromuconic, thiodipropionic, sebacic and suberic acids; tetramethylene, hexamethylene, p-phenylene, toluylene and naphthylene-1,5 diisocyanates. Preferred are linear hydroxy polyesters from adipic acid and ethylene glycol or diethylene glycol having an hydroxyl number of 40 to 65, modified by reaction with excess 1,5-naphthylene diisocyanate. In an example a dehydrated adipic acid/ethylene glycol polyester of hydroxyl number 56 is reacted with heating with 1,5-naphthylene diisocyanate. Portions of the product are melted together with mixtures in various proportions of 1,4-butanediol and trimethylol propane (and, for comparison, with each of these compounds alone). The products can be used in the manufacture of aprons gaskets, belts, shoes, tyres, tubes, bearings, ball-and-socket joints, and handles of mechanically actuated hammers and drills.
GB349456A 1955-02-09 1956-02-03 Process for the production of cross-linked elastomers Expired GB804067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF16794A DE1005721B (en) 1955-02-09 1955-02-09 Process for the production of high molecular weight, elastic crosslinked plastics with simultaneous shaping from linear isocyanate-modified polyesters containing terminal isocyanate groups and crosslinking agents

Publications (1)

Publication Number Publication Date
GB804067A true GB804067A (en) 1958-11-05

Family

ID=7088351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB349456A Expired GB804067A (en) 1955-02-09 1956-02-03 Process for the production of cross-linked elastomers

Country Status (2)

Country Link
DE (1) DE1005721B (en)
GB (1) GB804067A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129200A (en) * 1958-08-14 1964-04-14 Bayer Ag Polyurethane prepolymers cured with butene or butyne diol
WO2002046259A1 (en) * 2000-12-06 2002-06-13 Bayer Aktiengesellschaft Polyurethane prepolymer and polyurethane elastomers, based on 1,4-naphthalene di-isocyanate

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114735A (en) * 1959-05-11 1963-12-17 Mobay Chemical Corp Polyester-urethane castings
BE624887A (en) * 1961-11-16
JP3185809B2 (en) * 1992-03-19 2001-07-11 三菱瓦斯化学株式会社 Polyacetal resin composition

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE838652C (en) * 1949-02-23 1952-05-12 Bayer Ag Process for the production of crosslinked plastics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129200A (en) * 1958-08-14 1964-04-14 Bayer Ag Polyurethane prepolymers cured with butene or butyne diol
WO2002046259A1 (en) * 2000-12-06 2002-06-13 Bayer Aktiengesellschaft Polyurethane prepolymer and polyurethane elastomers, based on 1,4-naphthalene di-isocyanate

Also Published As

Publication number Publication date
DE1005721B (en) 1957-04-04

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