GB1037907A - Polyurethane substances - Google Patents

Polyurethane substances

Info

Publication number
GB1037907A
GB1037907A GB2706365A GB2706365A GB1037907A GB 1037907 A GB1037907 A GB 1037907A GB 2706365 A GB2706365 A GB 2706365A GB 2706365 A GB2706365 A GB 2706365A GB 1037907 A GB1037907 A GB 1037907A
Authority
GB
United Kingdom
Prior art keywords
curing
polyurethane
lbs
density
tolylene diisocyanate
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
GB2706365A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1037907A publication Critical patent/GB1037907A/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
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A polyurethane sponge having at least 80% of the cells closed and having a density of 10-20 lbs./cu. ft. is prepared by curing an isocyanate terminated polyalkylene ether polyurethane with an aromatic diamine in the presence of, as blowing agent, an inert liquid which boils under the curing conditions, so that the resulting sponge becomes non-sticky (defined) within a half to three minutes. In Example (1), the reaction product of polytetramethylene-ether glycol of M.W. 1000 and tolylene diisocyanate was mixed with tolylene diisocyanate, 4,41 - methylene - bis - (o - chloroaniline), a siloxane surfactant, adipic acid catalyst and trichlorofluoromethane. The froth was poured into a mould and became nonsticky in 40 seconds. After curing for 1 hour at 120 DEG C., a product of density 14.1 lbs. per cu. ft. was obtained.
GB2706365A 1964-06-26 1965-06-25 Polyurethane substances Expired GB1037907A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37844064A 1964-06-26 1964-06-26
US40197064A 1964-10-06 1964-10-06

Publications (1)

Publication Number Publication Date
GB1037907A true GB1037907A (en) 1966-08-03

Family

ID=27008223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2706365A Expired GB1037907A (en) 1964-06-26 1965-06-25 Polyurethane substances

Country Status (2)

Country Link
DE (1) DE1569302A1 (en)
GB (1) GB1037907A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4859196A (en) * 1971-11-13 1973-08-18
US6803495B2 (en) 2000-06-28 2004-10-12 World Properties, Inc. Polyurethane foam composition and method of manufacture thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4859196A (en) * 1971-11-13 1973-08-18
JPS5543006B2 (en) * 1971-11-13 1980-11-04
US6803495B2 (en) 2000-06-28 2004-10-12 World Properties, Inc. Polyurethane foam composition and method of manufacture thereof

Also Published As

Publication number Publication date
DE1569302A1 (en) 1969-07-31

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