EP0363000A1
Expired / Lapsed
EP
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New polyether derivatives
Assignee: Imperial Chemical Industries Ltd
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Filing: 1989-08-24
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Granted: —
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Expires: 2009-08-24
Abstract
Abstract Isocyanate-reactive polymers having terminal enamino-functional groups are obtained by reacting ammonia or primary or secondary amines with polymers having terminal β-ketoester groups which are themselves obtained by reaction of polyols with β-ketoesters such as ethyl acetoaoetate.
Inventors
- 👤 Malcolm Hannaby
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 08:07
CPC Classifications
C; C08; C08G; C08G71/00; C08G71/02; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5024; C08G18/503; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/6681; C08G18/6685; C08G18/67; C08G18/6795; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/331; C08G65/332; C08G65/3322; C08G65/333; C08G65/33303; C08G65/3331; C08K; C08K7/00; C08K7/02; C08G2110/00; C08G2110/0008; C08G2110/0025; C08G2120/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A composition of matter comprising a polymer having a molecular weight of at least 500 containing at least one group of the formula : -O-CO-X wherein X represents a group of the formula : or wherein R¹ represents hydrogen or an optionally substitued hydrocarbon radical, R² represents an optionally substitued hydrocarbon radical and each R³ and R⁴, independently, represents hydrogen or an optionally substitued hydrocarbon radical or R³ and R⁴ together with the attached nitrogen atom form a 5- or 6-membered heterocyclic ring.
Claim 2
Dependent Claim
83 words
A composition of matter comprising a polymer having a molecular weight of at least 500 containing at least one group of the formula : -O-CO-X wherein X represents a group of the formula : or wherein R¹ represents hydrogen or an optionally substitued hydrocarbon radical, R² represents an optionally substitued hydrocarbon radical and each R³ and R⁴, independently, represents hydrogen or an optionally substitued hydrocarbon radical or R³ and R⁴ together with the attached nitrogen atom form a 5- or 6-membered heterocyclic ring.
Claim 3
Dependent Claim
23 words
A composition according to claim 1 wherein R² is methyl, R¹ is hydrogen and at least one of R³ and R⁴ is hydrogen.
Claim 4
Dependent Claim
20 words
A composition according to claim 1 wherein the polymer has a molecular weight of from about 1000 to about 10000.
Claim 5
Dependent Claim
56 words
A composition according to claim 1 wherein the polymer has the general formula : Q(-O-CO-X)n wherein Q represents the residue remaining after removal of the hydroxyl groups from a polymeric polyol having a molecular weight of at least 400, n is an integer from 2 to 6 and X has the meaning given in claim 1.
Claim 6
Dependent Claim
12 words
A composition according to claim 4 wherein n is 2 or 3.
Claim 7
Dependent Claim
14 words
A composition according to claim 4 wherein the polymeric polyol is a polyether polyol.
Claim 8
Dependent Claim
31 words
A composition according to claim 4 wherein X is a group of the formula : wherein R¹ and R² are as defined in claim 1 and R⁵ represents a hydrocarbon radical.
Claim 9
Dependent Claim
14 words
A composition according to claim 7 wherein the polymer has the formula : Q(-O-CO-CH₂-CO-CH₃)n
Claim 10
Dependent Claim
53 words
A composition according to claims 4 wherein X is a group of the formula : said polymer being a reaction product of a polymer as defined in any of claims 10 to 12 and a compound of the formula : R³R⁴NH wherein R¹, R², R³ and R⁴ are as defined in claim 1.
Claim 11
Dependent Claim
23 words
Process for preparing a high molecular weight polymer by the reaction of an organic polyisocyanate and a composition as defined in claim 8.
References Cited (Backward Citations)
FR1472274A
Cited
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