Patent EP0074707A2 successfully refreshed from Google Patents.
EP0074707A2
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Polyamines and their use as curing agents
Assignee: Milliken Research Corp
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Filing: 1982-07-22
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Granted: —
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Expires: 2002-07-22
Abstract
Abstract A polyamine of the formula <CHEM> wherein R1 is H or C1-12 alkyl; R2 and R3 are independently selected from H and C1-8 alkyl; R4 is H or <CHEM> R5 is a radical having a valency of n and which is the radical of a C5-30 alkane, a C12-30 aromatic compound or C5-60 cycloalkane or is derived from an amine-terminated polygycol having a molecular weight of from 100 to 6,000 and from 2 to 100 ether linkages; and n is an integer of from 2 to 15. <??>These compounds can be used as curing agents for epoxy resins. They can be prepared by reduction of novel nitro analogues, themselves prepared from a nitroalkane, an aldehyde and a polyamine.
Inventors
- 👤 Edward William Kluger
- 👤 Venketa Subramanian Iyer
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 07:01
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/504; C08G65/00; C08G65/02; C08G65/32; C08G65/321; C08G65/322; C08G65/329; C08G65/333; C08G65/33379
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
92 words
A polyamine of the formula wherein R 1 is H or C 1-12 alkyl; R2 and R3 are independently selected from H and C 1-8 alkyl; R 4 is H or R 5 is a radical having a valency of n and which is the radical of a C 5-30 alkane, a C 12-30 aromatic compound or C 5-60 cycloalkane or is derived from an amine-terminated polygycol having a molecular weight of from 100 to 6,000 and from 2 to 100 ether linkages; and His an integer of from 2 to 15.
Claim 2
Dependent Claim
92 words
A polyamine of the formula wherein R 1 is H or C 1-12 alkyl; R2 and R3 are independently selected from H and C 1-8 alkyl; R 4 is H or R 5 is a radical having a valency of n and which is the radical of a C 5-30 alkane, a C 12-30 aromatic compound or C 5-60 cycloalkane or is derived from an amine-terminated polygycol having a molecular weight of from 100 to 6,000 and from 2 to 100 ether linkages; and His an integer of from 2 to 15.
Claim 3
Dependent Claim
18 words
A polyamine as claimed in claim 1, wherein R 2 and R 3 are each CH 3 .
Claim 4
Dependent Claim
16 words
A polyamine as claimed in claim 1 or claim 2, wherein R 1 is H .
Claim 5
Dependent Claim
13 words
A polyamine as claimed in any preceding claim, wherein R 4 is H.
Claim 6
Dependent Claim
22 words
A polyamine as claimed in any preceding claim, wherein R 5 is derived from an amine-terminated polygycol as defined in claim 1.
Claim 7
Dependent Claim
55 words
A polyamine as claimed in claim 5, wherein the polyglycol is any of the following formulae in which x is an integer of from 1 to 100; z is zero or an integer of from 1 to 10; R 6 is H or CH 3 ; and R 7 is H or C 1-8 alkyl.
Claim 8
Dependent Claim
112 words
A polyamine as claimed in claim 5, wherein the polyglycol has the formula wherein A is a poly(C 2-5 oxyalkylene) radical containing from 1 to 20 oxyalkylene groups; B is a poly(C 2-5 oxyalkylene)amino radical containing from 1 to 20 oxyalkylene; R is C 2-5 hydrocarbon radical forming from 2 to 4 oxycarbon linkages with A and B; X is a C=O or C=S radical or a radical derived from a difunctional isocyanate having two -NH-CO- groups; c, d, e, f and g are each 1, 2, 3, provided that c + d < 4; y is 0 or an integer of 1 to 6; and h is O, 1 or 2.
Claim 9
Dependent Claim
24 words
A polyamine as claimed in any of claims 1 to 4, wherein R 5 is the radical of an aromatic compound or a cycloalkane.
Claim 10
Dependent Claim
116 words
A polyamine as claimed in claim 8, wherein R 5 is derived from a polyamine of the formula R 5 (NH 2 ) n having any of the formulae and wherein R66 is H or C 1-5 alkyl; 1 + m is from O to 4; R 76 is selected from H , C 1-6 alkyl, C 1-24 alkox y, Cl, Br, N 0 2 or SO 2 R 86 where R 86 is C 1-24 alkyl or C6-24 aryl; R 106 and R 116 are independently selected from H, C 1-6 alkyl, C 1-24 alkoxy, Cl and Br; R 136 is H or C 1-6 alkyl; and p + a is from 0 to 4.
Claim 11
Dependent Claim
25 words
h polyamine as claimed in any claims 1 to 4, wherein n is from 3 to 12 and R 5 is derived from an alkane.
Claim 12
Dependent Claim
33 words
A polyamine as claimed in claim 10, wherein R 5 is derived from an amine of the formula wherein j and k are the same or different integers of from 1 to 7.
Claim 13
Dependent Claim
17 words
An epoxy resin composition comprising an epoxy resin and a polyamine as claimed in any preceding claim.
Claim 14
Dependent Claim
30 words
A polyamine of the formula wherein R 1 , R 2 , R3, R 4 , R 5 and n are as defined in any of claims 1 to 11.
References Cited (Backward Citations)
No citation records indexed.
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