IE44520L - Variable hardness polyurethane moulded parts - Google Patents

Variable hardness polyurethane moulded parts

Info

Publication number
IE44520L
IE44520L IE30477A IE30477A IE44520L IE 44520 L IE44520 L IE 44520L IE 30477 A IE30477 A IE 30477A IE 30477 A IE30477 A IE 30477A IE 44520 L IE44520 L IE 44520L
Authority
IE
Ireland
Prior art keywords
parts
foam
variable hardness
hardness
moulded parts
Prior art date
Application number
IE30477A
Other versions
IE44520B1 (en
Original Assignee
Mobay Chemical Corp
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 Mobay Chemical Corp filed Critical Mobay Chemical Corp
Publication of IE44520L publication Critical patent/IE44520L/en
Publication of IE44520B1 publication Critical patent/IE44520B1/en

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
    • C08J9/12—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 physical blowing agent
    • C08J9/14—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 physical blowing agent organic
    • 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

Abstract

A CONTlNUOUS PROCESS FOR PRODUCING VARIABLE HARDNESS POLYURETHANE MOLDED PARTS The instant invention generally relates to the continuous production of variable hardness molded polyurethane foam parts. Hardness of a foam is a function of the density of the foam and the index of the foamable reaction mixture. These variable hardness parts are continuously produced by the controlled addition of an inert blowing agent which directly affects density. These parts may also be produced by utilizing the double effect of controlling both the addition of the blowing agent and the foam index. [CA1086915A]
IE30477A 1976-02-12 1977-02-11 A continuous process for producing variable hardness polyurethane molded paris IE44520B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65752276A 1976-02-12 1976-02-12

Publications (2)

Publication Number Publication Date
IE44520L true IE44520L (en) 1977-08-12
IE44520B1 IE44520B1 (en) 1981-12-30

Family

ID=24637532

Family Applications (1)

Application Number Title Priority Date Filing Date
IE30477A IE44520B1 (en) 1976-02-12 1977-02-11 A continuous process for producing variable hardness polyurethane molded paris

Country Status (2)

Country Link
CA (1) CA1086915A (en)
IE (1) IE44520B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8616132D0 (en) * 1986-07-02 1986-08-06 Bp Chem Int Ltd Polyurethane foams
US5106884A (en) * 1988-10-28 1992-04-21 The Dow Chemical Company Flexible polyurea foams having controlled load bearing qualities
JP6971519B2 (en) * 2016-10-28 2021-11-24 コベストロ、ドイチュラント、アクチエンゲゼルシャフトCovestro Deutschland Ag Manufacturing method of polyurethane foam molded products

Also Published As

Publication number Publication date
CA1086915A (en) 1980-10-07
IE44520B1 (en) 1981-12-30

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