US4389515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable polyepoxide-unsaturated monomer compositions suitable for use in rim processes
Assignee: Resolution Performance Products LLC
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Filing: 1981-12-14
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Granted: 1983-06-21
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Expires: 2001-12-14
Abstract
Abstract The present invention provides a rapid curing epoxy composition suitable for RIM processes which exhibits unexpectedly good physical properties which comprises (1) an epoxy resin, (2) at least one ethylenically unsaturated monomer, (3) a polyamine or polyamide, (4) a catalyst selected from Group I or Group II metal salts, and (5) a polyalkylene ether glycol.
Inventors
- 👤 Harold E. De La Mare
- 👤 Thomas F. Brownscombe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:55
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08F; C08F283/00; C08F283/10; C08G59/40; C08G59/44; C08G59/50; C08L; C08L63/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
89 words
A rapid curing, storage stable, thermosetting composition, especially suitable for use in reaction injection molding processes comprising (1) an epoxy compound containing more than one vicinal epoxy group, (2) a miscible amount of at least one ethylenically unsaturated aromatic monomer, (3) a curing amount of at least one amino compound containing at least three amino hydrogens, (4) a catalytic amount of lithium or calcium nitrate, and (5) From about 0.1 to about 3 parts by weight of a polyalkylene ether glycol per 100 parts by weight of epoxy compound.
Claim 2
Dependent Claim
89 words
A rapid curing, storage stable, thermosetting composition, especially suitable for use in reaction injection molding processes comprising (1) an epoxy compound containing more than one vicinal epoxy group, (2) a miscible amount of at least one ethylenically unsaturated aromatic monomer, (3) a curing amount of at least one amino compound containing at least three amino hydrogens, (4) a catalytic amount of lithium or calcium nitrate, and (5) From about 0.1 to about 3 parts by weight of a polyalkylene ether glycol per 100 parts by weight of epoxy compound.
Claim 3
Dependent Claim
17 words
The composition of claim 1 wherein the epoxy compound is a glycidyl polyether of a polyhydric phenol.
Claim 4
Dependent Claim
15 words
The composition of claim 2 wherein the epoxy compound is a glycidyl polyether of 2,2-bis(4-hydroxyphenyl)propane.
Claim 5
Dependent Claim
27 words
The composition of claim 2 wherein the epoxy compound is a blend of (a) a glycidyl polyether of 2,2-bis(4-hydroxyphenyl)propane and (b) a glycidyl polyether of hydrogenated 2,2-bis(4-hydroxyphenyl)propane.
Claim 6
Dependent Claim
25 words
The composition of claim 1 wherein the weight ratio of the epoxy compound to the ethylenically unsaturated monomer is from about 100:10 to about 100:200.
Claim 7
Dependent Claim
12 words
The composition of claim 1 wherein the ethylenically unsaturated monomer is styrene.
Claim 8
Dependent Claim
13 words
The composition of claim 1 wherein the amino compound is a cycloaliphatic amine.
Claim 9
Dependent Claim
13 words
The composition of claim 7 wherein the cycloaliphatic diamine is hydrogenated methylene dianiline.
Claim 10
Dependent Claim
11 words
The composition of claim 7 wherein the cycloaliphatic diamine is 1,2-diaminocyclohexane.
Claim 11
Dependent Claim
12 words
The composition of claim 1 wherein the amino compound is a polyamide.
Claim 12
Dependent Claim
22 words
The composition of claim 10 wherein the polyamide is an adduct of a polymeric fatty acid and triethylamine tetramine or diethylene triamine.
Claim 13
Dependent Claim
14 words
The composition of claim 1 wherein the catalyst is Ca(NO 3 ) 2 .
Claim 14
Dependent Claim
13 words
The composition of claim 1 wherein the melt salt is LiNO 3 .
Claim 15
Dependent Claim
14 words
The composition of claim 1 wherein the polyalkylene ether glycol is a polyethylene glycol.
Claim 16
Dependent Claim
21 words
The composition of claim 13 wherein the polyethylene glycol has an average molecular weight of from about 200 to about 600.
Claim 17
Dependent Claim
27 words
The composition of claim 1 wherein the catalyst is employed in amounts from about 0.05 to about 5.0 parts per 100 parts by weight of epoxy compound.
Claim 18
Dependent Claim
22 words
The composition of claim 1 wherein the weight ratio of catalyst to polyalkylene ether glycol is from about 1:1 to about 1:5.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-20 | 1986-12-20 | 1987-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-20 | 1990-12-20 | 1991-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-20 | 1994-12-20 | 1995-06-21 | $7700.00 | Window Closed / Lapsed |