GB700611A - Improvements in and relating to polymeric products derived from polyisocyanate-modified polyesters - Google Patents

Improvements in and relating to polymeric products derived from polyisocyanate-modified polyesters

Info

Publication number
GB700611A
GB700611A GB472950A GB472950A GB700611A GB 700611 A GB700611 A GB 700611A GB 472950 A GB472950 A GB 472950A GB 472950 A GB472950 A GB 472950A GB 700611 A GB700611 A GB 700611A
Authority
GB
United Kingdom
Prior art keywords
polyester
reacted
adipic acid
toluylene
products
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
GB472950A
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 GB700611A publication Critical patent/GB700611A/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
    • 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

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)

Abstract

A substantially linear polyester having an hydroxyl number from 20-80, preferably 40-60, is modified by reaction with a poly-isocyante in a quantity 100 - 600 per cent. in excess of that equivalent to the hydroxyl groups in the polyester, the resulting product then being reacted with a diamine in a proportion equivalent to from at least one quarter to at most all the remaining isocyanate groups. In general the product is a polyurea intimately associated with a polyester which acts as a plasticizer, the polyurea being cross-linked by reaction with isocyanate. The initial polyesters are primarily derived from glycols and aliphatic saturated dicarboxylic or hydroxy-acids but small quantities of materials of higher functionality, e.g. trihydric alcohols, and of unsaturated or aromatic acids may be included. The acid number of the polyesters should be low to avoid carbon dioxide formation. With low isocyanate content the final products are elastic, higher isocyanate content giving harder, non-brittle products. By choosing slowly reacting isocyanates and diamines the reaction mixture may be moulded in the liquid phase. Six examples are given, examples 1-5 describing the modification of glycol - adipic acid and propylene glycol adipic acid esters having hydroxyl numbers about 50 with toluylene and 1.5 naphthalene diisocyanates, the products being reacted with dichlorobenzidine, toluylene diamine and 4.21 diamino - diphenyl, the final products being used to cover automobile steering wheels, condensers and cable joints and for packings, foils and plates. Talcum is used as a filler in example 1. In example 6 a polyester from adipic acid, glycol and trimethylolpropane, having an hydroxyl number 60, is modified with toluylene diisocyanate and the product reacted with dichlorobenzidine. Other fillers referred to are titanium dioxide, asbestos and mixtures of asbestos with iron powder. Specifications 700,609 and 700,610 are referred to.
GB472950A 1949-02-24 1952-02-23 Improvements in and relating to polymeric products derived from polyisocyanate-modified polyesters Expired GB700611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP34916A DE831604C (en) 1949-02-24 1949-02-24 Process for the production of plastics

Publications (1)

Publication Number Publication Date
GB700611A true GB700611A (en) 1953-12-09

Family

ID=7373947

Family Applications (1)

Application Number Title Priority Date Filing Date
GB472950A Expired GB700611A (en) 1949-02-24 1952-02-23 Improvements in and relating to polymeric products derived from polyisocyanate-modified polyesters

Country Status (2)

Country Link
DE (1) DE831604C (en)
GB (1) GB700611A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2779689A (en) * 1955-07-19 1957-01-29 Pittsburgh Plate Glass Co Forming foamed polyurethane resins
US2880192A (en) * 1954-01-18 1959-03-31 Ici Ltd Rubbery composition comprising a crystalline polyester and a liquid polyester reacted with a diisocyanate
US2888432A (en) * 1955-03-23 1959-05-26 Goodyear Tire & Rubber Process of curing a polyurethane with a mixture of diisocyanate and polyester

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045094B (en) * 1951-12-05 1958-11-27 Armour & Co Process for the production of synthetic resins by reacting a diisocyanate with water
DE962936C (en) * 1954-10-14 1957-05-02 Bayer Ag Process for the production of lightfast surface structures from polycondensation products of diisocyanates and compounds with more than one reactive hydrogen atom
NL126837C (en) * 1958-01-17
NL237836A (en) * 1958-04-07
BE580827A (en) * 1958-08-18
DE1145790B (en) * 1959-05-08 1963-03-21 Lemfoerder Metallwarengesellsc Process for the production of molded articles from elastomeric polyester urethanes
IT649529A (en) * 1960-05-25 1900-01-01

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880192A (en) * 1954-01-18 1959-03-31 Ici Ltd Rubbery composition comprising a crystalline polyester and a liquid polyester reacted with a diisocyanate
US2888432A (en) * 1955-03-23 1959-05-26 Goodyear Tire & Rubber Process of curing a polyurethane with a mixture of diisocyanate and polyester
US2779689A (en) * 1955-07-19 1957-01-29 Pittsburgh Plate Glass Co Forming foamed polyurethane resins

Also Published As

Publication number Publication date
DE831604C (en) 1952-02-14

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