US4180632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyaminoesters and foams made therefrom
Assignee: Rohm and Haas Co
•
Filing: 1977-11-25
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Granted: 1979-12-25
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Expires: 1997-11-25
Abstract
Abstract Rigid thermoset polyaminoesters are prepared by reacting a mixture of acrylate monomer having an average acrylate functionality of at least 2.5 and aliphatic amine having an average amine hydrogen functionality of at least 3.
Inventors
- 👤 Casmir S. Ilenda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:39
CPC Classifications
C; C08; C08F; C08F120/00; C08F120/02; C08F120/10; C08F120/12; C08G; C08G73/00; C08G73/02
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
66 words
Composition comprising solid polyaminoester polymers of one or more esters of acrylic acid monomers having an average acrylate functionality of at least 2.5 and one or more low molecular weight aliphatic amines having an average amine hydrogen functionality of at least 3 and an amine hydrogen equivalent weight of less than about 100, the equivalents ratio of acrylate to amine hydrogen being about 0.5 to 2.0.
Claim 2
Dependent Claim
66 words
Composition comprising solid polyaminoester polymers of one or more esters of acrylic acid monomers having an average acrylate functionality of at least 2.5 and one or more low molecular weight aliphatic amines having an average amine hydrogen functionality of at least 3 and an amine hydrogen equivalent weight of less than about 100, the equivalents ratio of acrylate to amine hydrogen being about 0.5 to 2.0.
Claim 3
Dependent Claim
10 words
Compositions in accordance with claim 1, further including fibrous reinforcement.
Claim 4
Dependent Claim
11 words
Compositions in accordance with claim 1, further including inert particulate filler.
Claim 5
Dependent Claim
33 words
Compositions in accordance with claim 1, further including one or more ethylenically unsaturated monomers other than acrylates which are copolymerizable with acrylates but which react slowly or not at all with amine groups.
Claim 6
Dependent Claim
36 words
Composition of claim 1 wherein the acrylate monomer is pentaerythritol triacrylate or trimethylolpropane triacrylate and the amine is of the formula H 2 N(CH 2 CH 2 NH) n H wherein n is 1 to 4.
Claim 7
Dependent Claim
16 words
Composition of claim 5 further including one or more monomers selected from styrene and methyl methacrylate.
Claim 8
Dependent Claim
7 words
Foams having the composition of claim 1.
Claim 9
Dependent Claim
22 words
Articles having the composition of claim 1 in the form of electrical insulator parts, distributor caps, gears, fenders, boat hulls or sheet.
Claim 10
Dependent Claim
29 words
Process for producing the polymers of claim 1 comprising introducing a mixture of the acrylate monomer and the amine monomer in a mold and allowing the mixture to react.
Claim 11
Dependent Claim
18 words
The process of claim 9 wherein the mixture is allowed to react for about 1 to 2000 sec.
Claim 12
Dependent Claim
12 words
The process of claim 9 wherein said mold is a closed mold.
Claim 13
Dependent Claim
39 words
The process of claim 9 wherein said mixture further includes a free radical catalyst and one or more ethylenically unsaturated monomers other than acrylates which are copolymerizable with acrylates but react slowly or not at all with amine groups.
Claim 14
Dependent Claim
19 words
The process of claim 9 wherein the mold is maintained at a temperature of about 0° to 200° C.
Claim 15
Dependent Claim
14 words
The process of claim 9 wherein the temperature is about 20° to 120° C.
Claim 16
Dependent Claim
24 words
The process of claim 9 further including post curing the reaction product at about 30° to 300° C. for about 1 to 22 hours.
Claim 17
Dependent Claim
24 words
The process of claim 9 further including a low boiling inert solvent which boils under the reaction conditions so as to produce foamed articles.
Claim 18
Dependent Claim
23 words
The process of claim 9 wherein there is further included a free radical initiator and the equivalents ratio is about 0.8 to 2.0.
Claim 19
Dependent Claim
22 words
The process of claim 9 wherein there is no free radical initiator present and the equivalent ratio is about 0.5 to 1.09.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-24 | 1983-06-25 | 1983-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-24 | 1987-06-25 | 1987-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-24 | 1991-06-25 | 1991-12-25 | $7700.00 | Window Closed / Lapsed |