GB772925A - Improvements in method of making expanded elastomeric polyurethane polymers - Google Patents

Improvements in method of making expanded elastomeric polyurethane polymers

Info

Publication number
GB772925A
GB772925A GB24079/55A GB2407955A GB772925A GB 772925 A GB772925 A GB 772925A GB 24079/55 A GB24079/55 A GB 24079/55A GB 2407955 A GB2407955 A GB 2407955A GB 772925 A GB772925 A GB 772925A
Authority
GB
United Kingdom
Prior art keywords
isocyanate
polyurethane polymers
elastomeric polyurethane
adduct
making expanded
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
GB24079/55A
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.)
Uniroyal Inc
Original Assignee
United States Rubber Co
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 United States Rubber Co filed Critical United States Rubber Co
Publication of GB772925A publication Critical patent/GB772925A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Expanded polyurethanes are made by incorporating into an isocyanate-terminated adduct from a hyroxy-terminated polyester and an organic di-isocyanate, an aqueous solution of an alkali metal nitrite. The adduct may be heated to facilitate dispersion of the blowing agent solution and oleic acid may be added for the same reason. The polyester used is made from adipic acid and excess of a mixture of ethylene and propylene glycols. The examples employ p,p1-diphenylmethane di-isocyanate and potassium nitrite. Other isocyanates are listed in the Specification.
GB24079/55A 1954-10-26 1955-08-22 Improvements in method of making expanded elastomeric polyurethane polymers Expired GB772925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US772925XA 1954-10-26 1954-10-26

Publications (1)

Publication Number Publication Date
GB772925A true GB772925A (en) 1957-04-17

Family

ID=22137215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24079/55A Expired GB772925A (en) 1954-10-26 1955-08-22 Improvements in method of making expanded elastomeric polyurethane polymers

Country Status (3)

Country Link
DE (1) DE1038272B (en)
FR (1) FR1136847A (en)
GB (1) GB772925A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB587833A (en) * 1945-01-19 1947-05-07 Edward Henry George Sargent An improved manufacture of light weight resinous insulating and like materials
DE897399C (en) * 1951-02-17 1953-11-19 Bayer Ag Laminates
BE516512A (en) * 1951-12-24

Also Published As

Publication number Publication date
FR1136847A (en) 1957-05-20
DE1038272B (en) 1958-09-04

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