EP0428342A2
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EP
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Stable thiol-ene compositions
Assignee: Henkel Loctite Ireland Ltd
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Filing: 1990-11-09
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Granted: —
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Expires: 2010-11-09
Abstract
Abstract Curable norbornene-thiol compositions are stabilised by addition of a non-acidic Nitroso compound.
Inventors
- 👤 Joseph P. Dowling
- 👤 Sarah C. Richardson
- 👤 Killian Quigley
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 19:50
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G75/04; C08G75/045; C08G75/12; C08G75/14; C08K; C08K5/00; C08K5/16; C08K5/32; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31533
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
67 words
Polymerizable compositions comprising i) a 'ene compound having a plurality of groups of the formula where Q is CR¹₂, O, S, NR¹ or SO₂, R¹ (which may be the same or different) is H or alkyl, and m is 0-10; ii) a compound having at least two pendant or terminally positioned -SH functional groups per average molecule; and iii) a stabilizing amount of a non-acidic Nitroso compound.
Claim 2
Dependent Claim
67 words
Polymerizable compositions comprising i) a 'ene compound having a plurality of groups of the formula where Q is CR¹₂, O, S, NR¹ or SO₂, R¹ (which may be the same or different) is H or alkyl, and m is 0-10; ii) a compound having at least two pendant or terminally positioned -SH functional groups per average molecule; and iii) a stabilizing amount of a non-acidic Nitroso compound.
Claim 3
Dependent Claim
22 words
A composition according to Claim 1 which further comprises an effective amount of a free radical initiator and/or a photocuring rate accelerator.
Claim 4
Dependent Claim
14 words
A composition according to Claim 1 wherein the nitroso compound contains the group -N-NO.
Claim 5
Dependent Claim
18 words
A composition according to Claim 3 wherein the nitroso compound is an N-nitroso amine, amino acid or amide.
Claim 6
Dependent Claim
67 words
A composition according to Claim 4 wherein the nitroso compound is a hydroxylamine derivative of the formula [RN(NO)O) n R² wherein R is an aliphatic, alicyclic or aromatic group, optionally substituted with a halogen, hydroxyl or cyano group; R² is hydrogen, a group I to III metal, a group VIIIB metal or substituted or unsubstituted NH₄ group; and n=1-5 corresponding to the positive charge number of R².
Claim 7
Dependent Claim
18 words
A composition according to Claim 5 wherein the nitroso compound is the aluminium or ammonium salt of N-nitrosophenylhydroxylamine.
Claim 8
Dependent Claim
33 words
A composition according to Claim 1 wherein the 'ene compound (i) has the groups of formula I attached to a backbone of carbon-carbon atom structure, optionally interrupted by one or more hetero atoms.
Claim 9
Dependent Claim
22 words
A composition according to Claim 1 wherein the compound (ii) having the -SH functional groups is an organic poly-β-mercaptoacetate or poly-β-mercaptopropionate ester.
Claim 10
Dependent Claim
39 words
A composition according to Claim 1 wherein the mole ratio of reactive carbon-carbon unsaturated groups in the 'ene compound (i) to -SH functional groups in the thiol compound (ii) is in the range from about 0.75/1 to about 1.5/1.
Claim 11
Dependent Claim
55 words
A method of stabilising a polymerisable composition comprising (i) a 'ene compound having a plurality of groups of formula 1 as defined in Claim 1, and (ii) a compound having at least two pendant or terminally positioned -SH functional groups per average molecule; which comprises adding thereto a stabilising amount of a non-acidic nitroso compound.
References Cited (Backward Citations)
No citation records indexed.
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