GB848837A - Improvements in or relating to the production of synthetic elastomers - Google Patents

Improvements in or relating to the production of synthetic elastomers

Info

Publication number
GB848837A
GB848837A GB1384457A GB1384457A GB848837A GB 848837 A GB848837 A GB 848837A GB 1384457 A GB1384457 A GB 1384457A GB 1384457 A GB1384457 A GB 1384457A GB 848837 A GB848837 A GB 848837A
Authority
GB
United Kingdom
Prior art keywords
melting
polyesteramide
temperature
polyester
diphenyl
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
GB1384457A
Inventor
Frank Desmond Hartley
Gordon Trappe
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
Priority to BE567202D priority Critical patent/BE567202A/xx
Priority to NL108885D priority patent/NL108885C/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1384457A priority patent/GB848837A/en
Priority to FR1205976D priority patent/FR1205976A/en
Priority to DEI14776A priority patent/DE1092647B/en
Publication of GB848837A publication Critical patent/GB848837A/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
    • C08G18/40—High-molecular-weight compounds
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • 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
    • 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

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

In a process for the manufacture of elastomeric materials from a diisocyanate and a mixture of polyesters, polyesteramides or polyethers containing in addition to at least one component melting at a temperature of less than 160 DEG C. at least one high-melting crystalline polyester or polyesteramide which melts at a temperature not less than 160 DEG C. the diisocyanate and the other ingredients are mixed at a temperature not more than 30 DEG C. below the melting point of the high-melting polyester or polyesteramide, and thereafter the mixture is cured at a temperature at least 20 DEG C. lower than the mixing temperature. Preferably the low-melting polyester, polyesteramide or polyether has a melting point between 0 DEG C. and 60 DEG C. The mixing temperature may be above the melting point of the high-melting component. Suitable high-melting polyesters and polyesteramides are those derived from an aromatic acid, such as terephthalic, 4,41-diphenyl dicarboxylic, 4,41-diphenylethane dicarboxylic or isophthalic acid (with up to 50% of other acids) and glycols, amino alcohols and diamines. The low-melting component may be a polyether, such as those described in Specification 733,624 or a substantially linear polyester or polyesteramide preferably of molecular weight 800 to 5000, e.g. polyethylene adipate, glutarate or azelate, polydiethylene glutarate or adipate, or polypentamethylene glutarate. The proportion of high melting component may be 5 to 60% by weight. The amount of diisocyanate may be 5 to 100% in excess of that required to react with all the end groups of the polyester, polyesteramide and polyether. Diphenylmethane, naphthalene, phenylene, diphenyl, dimethyl-diphenyl, diphenylethane, toluene, dimethyl - diphenyl - methane and dibenzfuran diisocyanates are specified. Curing is usually effected at 70 DEG to 150 DEG C. Curing catalysts such as tertiary amines and fillers such as carbon black, iron oxide, glue, blanc fixe, whiting, inorganic or organic pigments and plasticizers can be added. Specification 765,745 also is referred to.
GB1384457A 1957-05-01 1957-05-01 Improvements in or relating to the production of synthetic elastomers Expired GB848837A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE567202D BE567202A (en) 1957-05-01
NL108885D NL108885C (en) 1957-05-01
GB1384457A GB848837A (en) 1957-05-01 1957-05-01 Improvements in or relating to the production of synthetic elastomers
FR1205976D FR1205976A (en) 1957-05-01 1958-04-28 Further development in the manufacture of synthetic elastomers
DEI14776A DE1092647B (en) 1957-05-01 1958-04-30 Process for the production of molded articles from polyurethane elastomers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1384457A GB848837A (en) 1957-05-01 1957-05-01 Improvements in or relating to the production of synthetic elastomers

Publications (1)

Publication Number Publication Date
GB848837A true GB848837A (en) 1960-09-21

Family

ID=10030360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1384457A Expired GB848837A (en) 1957-05-01 1957-05-01 Improvements in or relating to the production of synthetic elastomers

Country Status (5)

Country Link
BE (1) BE567202A (en)
DE (1) DE1092647B (en)
FR (1) FR1205976A (en)
GB (1) GB848837A (en)
NL (1) NL108885C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129559B1 (en) * 1972-09-05 1976-08-26
US4186257A (en) * 1977-02-15 1980-01-29 Bayer Aktiengesellschaft Process for the preparation of new segmented polyurethane resins derived from block copolymers being linked together through ester and/or urethane and/or urea groups

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB765745A (en) * 1954-01-18 1957-01-09 Ici Ltd Polyisocyanate modified polyesters and polyesteramides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129559B1 (en) * 1972-09-05 1976-08-26
US4186257A (en) * 1977-02-15 1980-01-29 Bayer Aktiengesellschaft Process for the preparation of new segmented polyurethane resins derived from block copolymers being linked together through ester and/or urethane and/or urea groups
US4228249A (en) * 1977-02-15 1980-10-14 Bayer Aktiengesellschaft Segmented polyurethane resins

Also Published As

Publication number Publication date
NL108885C (en)
DE1092647B (en) 1960-11-10
FR1205976A (en) 1960-02-05
BE567202A (en)

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