GB825896A - Elastomeric cellular material - Google Patents

Elastomeric cellular material

Info

Publication number
GB825896A
GB825896A GB24069/57A GB2406957A GB825896A GB 825896 A GB825896 A GB 825896A GB 24069/57 A GB24069/57 A GB 24069/57A GB 2406957 A GB2406957 A GB 2406957A GB 825896 A GB825896 A GB 825896A
Authority
GB
United Kingdom
Prior art keywords
prepolymer
weight
polypropylene ether
oxyethylene
approximately
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
GB24069/57A
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and 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 Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of GB825896A publication Critical patent/GB825896A/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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08G18/48—Polyethers
    • C08G18/4825—Polyethers containing two hydroxy groups
    • 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
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • C08G18/4841—Polyethers containing oxyethylene units and other oxyalkylene units containing oxyethylene end groups
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole 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
    • C08J2375/08—Polyurethanes from polyethers
    • 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
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

A process for preparing flexible elastomeric cellular materials is characterized by heating a polypropylene ether glycol having an average molecular weight of from approximately 1500 to 3200 and/or oxyethylene-terminated polypropylene ether glycols having an average molecular weight of from approximately 1500 to 2500 with from 3 to 6 mols. of polyisocyanate per mol. of the glycol to produce a prepolymer having a viscosity at room temperature of from 2000 to 50,000 centipoises, adding to and mixing with the prepolymer water, an activator and from 0.25 to 1.5 parts by weight of silicone oil per 100 parts by weight of the prepolymer and permitting the complete reaction mixture to expand and cure. Amounts of water between 85 and 200% of that theoretically necessary to react with the free isocyanate in the prepolymer are suitably employed. Additional polyisocyanate may be employed in the foaming stage. Specified activators are tertiary amines or mixtures thereof, such as N-methyl or ethyl morpholine, triethylamine, and aldehyde/amine condensation products. Especally suitable oxyethylene-terminated polypropylene ether glycols are those of the formula <FORM:0825896/IV (a)/1> wherein y is a whole number from 20 to 42 and the x and z units are from 10 to 20% by weight of the compounds.ALSO:A process for preparing flexible elastomeric cellular materials is characterised by heating a polypropylene ether glycol having an average molecular weight of from approximately 1500 to 3200 and/or oxyethylene-terminated polypropylene ether glycols having an average molecular weight of from approximately 1500 to 2500 with from 3,0 to 6,0 mols of polyisocyanate per mol of the glycol to produce a prepolymer having a viscosity at room temperature of from 2000 to 50,000 centipoises, adding to and mixing with the prepolymer water, an activator and from 0,25 to 1,5 parts by weight of silicone oil per 100 parts by weight of the prepolymer and permitting the complete reaction mixture to expand and cure. Amounts of water between 85% and 200% of that theoretically necessary to react with the free isocyanate groups in the prepolymer are suitable. Further isocyanate may be added at the foaming stage. Specified activators are tertiary amines or mixtures thereof. Especially suitable oxyethylene-terminated polypropylene ether glycols are those of the formula: <FORM:0825896/V/1> wherein y is a whole number from 20 to 42 and the x and y units form 10 to 20% of the weight of the ethers.
GB24069/57A 1957-01-22 1957-07-30 Elastomeric cellular material Expired GB825896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US825896XA 1957-01-22 1957-01-22

Publications (1)

Publication Number Publication Date
GB825896A true GB825896A (en) 1959-12-23

Family

ID=22172126

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24069/57A Expired GB825896A (en) 1957-01-22 1957-07-30 Elastomeric cellular material

Country Status (4)

Country Link
BE (1) BE564096A (en)
FR (1) FR1182965A (en)
GB (1) GB825896A (en)
LU (1) LU35467A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE581667A (en) * 1958-08-15
BE593563A (en) * 1959-07-29 1900-01-01
DE1128133B (en) * 1959-08-20 1962-04-19 Mobay Chemical Corp Process for the production of foams containing urethane groups

Also Published As

Publication number Publication date
BE564096A (en)
FR1182965A (en) 1959-07-01
LU35467A1 (en)

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