GB951505A - A process for the production of plastics by the isocyanate polyaddition process - Google Patents

A process for the production of plastics by the isocyanate polyaddition process

Info

Publication number
GB951505A
GB951505A GB1984362A GB1984362A GB951505A GB 951505 A GB951505 A GB 951505A GB 1984362 A GB1984362 A GB 1984362A GB 1984362 A GB1984362 A GB 1984362A GB 951505 A GB951505 A GB 951505A
Authority
GB
United Kingdom
Prior art keywords
isocyanate
imides
diphenylmethane
prepared
imide
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
GB1984362A
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 GB951505A publication Critical patent/GB951505A/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
    • C08G18/70—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
    • 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
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/797—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing carbodiimide and/or uretone-imine groups

Abstract

Bisisocyanatocarbodi-imides are prepared by reacting organic di-isocyanates with carbo-di-imides. The products may be reacted with further organic di-isocyanate as in the case of diphenylmethane di-isocyanate. In examples the following are reacted: (2) diphenylmethane-4, 41-di-isocyanate and diphenylcarbodi-imide, (3) diphenylmethane-4, 41-di-isocyanate and diphenylcarbodi-imide, and the product reacted with additional diphenylmethane-4, 41-di-isocyanate and (4) hexamethylene di-isocyanate and dicyclo-hexylcarbodi-imide Specification 918,454 is referred to.ALSO:Polycarbodi-imidopolyurethanes are prepared by reacting a polyhydroxyl compound having a molecular weight above 600 with a polyisocyanate of the general formula: (OCN)mRx-NCN-Ry-(NCO)n in which Rx and Ry each is a polyvalent organic radica and m and n are integers. The polyisocyanatocarbodi-imides are prepared from polyisocyanates, for example, by reaction with a monocarbodiimide. The polyisocyanato-carbodi-imides may be used in the form of their adducts with masking agents such as phenols or malonic esters or with polyhydric alcohols such as butanediol, trimethylolpropane and pentaerythritol. Many polyisocyanates from which the polyisocyanatocarbodi-imides may be prepared are specified and the following carbodi-imides are specified or exemplified:- <FORM:0951505/C3/1> OCN(CH2)6-N=C=N-(CH2)6NCO and the reaction product of diphenylmethane-4,41-diisocyanate with the reaction product of diphenylmethane-4, 41-diisocyanate and diphenylcarbodiimide. The polyhydroxyl compound may be a linear or branched saturated or unsaturated polyester, a polyesteramide, polyacetal, polyether or polythioether or a polyisocyanate modified polyester. Other reactive materials which may be added include organic polyisocyanates, water, glycols which may also contain urea, urethane, carbonamide and ether groups, polyamines, sulphur, formaldehyde and peroxides. In the preparation of foams water, azo compounds and low boiling alkanes and haloalkanes are the specified blowing agents and may be used in conjunction with catalysts such as permethylated aminoethylpiperazine and with silicone-polyalkylene glycol esters. In the preparation of lacquers, adhesives and rubbers, solvents such as o-dichlorobenzene and a methyl ethyl ketone, butyl acetate, ethyl glycol acetate, toluene mixture, accelerators such as zinc octoate, flow control agents such as silicone oils, and fillers such as a mixture of lithopone, heavy spar and dolomite may be added. Specification 918,454 is referred to.
GB1984362A 1961-05-24 1962-05-23 A process for the production of plastics by the isocyanate polyaddition process Expired GB951505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF33990A DE1145353B (en) 1961-05-24 1961-05-24 Process for the production of homogeneous plastics including surface structures according to the isocyanate polyaddition process

Publications (1)

Publication Number Publication Date
GB951505A true GB951505A (en) 1964-03-04

Family

ID=7095356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1984362A Expired GB951505A (en) 1961-05-24 1962-05-23 A process for the production of plastics by the isocyanate polyaddition process

Country Status (2)

Country Link
DE (1) DE1145353B (en)
GB (1) GB951505A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294719A (en) 1975-02-01 1981-10-13 Bayer Aktiengesellschaft Polyisocyanates which contain carbodiimide groups and which are stable in storage
US5210170A (en) * 1990-06-07 1993-05-11 Bayer Aktiengesellschaft Process for stabilizing plastics containing ester groups

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111875768B (en) * 2020-08-12 2022-04-08 上海博盛聚氨酯制品有限公司 Preparation method of polyurethane elastomer with low resilience and low compression permanent deformation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012601B (en) * 1955-06-24 1957-07-25 Bayer Ag Process for the preparation of addition compounds
DE1092007B (en) * 1959-07-29 1960-11-03 Bayer Ag Process for the preparation of polyisocyanates containing a carbodiimide isocyanate adduct

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294719A (en) 1975-02-01 1981-10-13 Bayer Aktiengesellschaft Polyisocyanates which contain carbodiimide groups and which are stable in storage
US5210170A (en) * 1990-06-07 1993-05-11 Bayer Aktiengesellschaft Process for stabilizing plastics containing ester groups

Also Published As

Publication number Publication date
DE1145353B (en) 1963-03-14

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