GB1335198A - Process for the preparation of stable poly-isocyanates which contain biuret groups - Google Patents

Process for the preparation of stable poly-isocyanates which contain biuret groups

Info

Publication number
GB1335198A
GB1335198A GB5800270A GB5800270A GB1335198A GB 1335198 A GB1335198 A GB 1335198A GB 5800270 A GB5800270 A GB 5800270A GB 5800270 A GB5800270 A GB 5800270A GB 1335198 A GB1335198 A GB 1335198A
Authority
GB
United Kingdom
Prior art keywords
polyisocyanates
biuret groups
isocyanates
preparation
dec
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
GB5800270A
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 GB1335198A publication Critical patent/GB1335198A/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
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/1809—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety
    • C07C273/1818—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety from -N=C=O and XNR'R"
    • C07C273/1827—X being H
    • 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
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/7806—Nitrogen containing -N-C=0 groups
    • C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
    • C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret groups
    • 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

1335198 Polyurethanes BAYER AG 7 Dec 1970 [17 Dec 1969] 58002/70 Heading C3R [Also in Division C2] Polyurethane resins and polyurethane foam resins are prepared from stable liquid polyisocyanates containing biuret groups obtained by reacting aliphatic or aromatic polyisocyanates at temperatures of from 100‹ to 200‹ C. with diprimary aromatic diamines with their nucleophilic character attenuated by electrophilic substituents or by substituents which sterically hinder the amino groups to such an extent that the diamines may be intimately mixed with polyisocyanates at temperatures of above 100‹ C. without any substantial formation of sparingly soluble polyureas in such proportions that the NH 2 /NCO ratio is in the range of 1 : 2 to 1 : 100.
GB5800270A 1969-12-17 1970-12-07 Process for the preparation of stable poly-isocyanates which contain biuret groups Expired GB1335198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691963190 DE1963190B2 (en) 1969-12-17 1969-12-17 PROCESS FOR THE PREPARATION OF STABLE BIURETIC-CONTAINING POLYISOCYANATES AND THEIR USE

Publications (1)

Publication Number Publication Date
GB1335198A true GB1335198A (en) 1973-10-24

Family

ID=5754099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5800270A Expired GB1335198A (en) 1969-12-17 1970-12-07 Process for the preparation of stable poly-isocyanates which contain biuret groups

Country Status (6)

Country Link
JP (1) JPS4840345B1 (en)
BE (1) BE760485A (en)
DE (1) DE1963190B2 (en)
FR (1) FR2073959A5 (en)
GB (1) GB1335198A (en)
NL (1) NL7018344A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101993396A (en) * 2009-08-21 2011-03-30 拜尔材料科学股份公司 Preparation method of polyisocyanate with biuret structure

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836424A (en) * 1972-07-18 1974-09-17 R Grieve Polyisocyanurate foam articles
JPS53162054U (en) * 1977-05-27 1978-12-19
JPS59220130A (en) * 1983-05-26 1984-12-11 工藤　和子 Flower pot
JPS59220129A (en) * 1983-05-28 1984-12-11 工藤　和子 Flower pot
GB8913196D0 (en) * 1989-06-08 1989-07-26 Ici Gmbh Polyisocyanate and polyol composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101993396A (en) * 2009-08-21 2011-03-30 拜尔材料科学股份公司 Preparation method of polyisocyanate with biuret structure
CN101993396B (en) * 2009-08-21 2014-09-03 拜尔材料科学股份公司 Preparation method of polyisocyanate with biuret structure

Also Published As

Publication number Publication date
DE1963190A1 (en) 1971-06-24
NL7018344A (en) 1971-06-21
JPS4840345B1 (en) 1973-11-30
FR2073959A5 (en) 1971-10-01
BE760485A (en) 1971-05-27
DE1963190B2 (en) 1977-06-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee