US4377646A
Expired / Lapsed
US
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Process for the production of foamed poly(epoxy-polyisocyanate)silicate polymers
Assignee: Individual
•
Filing: 1982-08-05
•
Granted: 1983-03-22
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Expires: 2002-08-05
Abstract
Abstract Poly(epoxy-polyisocyanate) silicate foamed products are produced by mixing and reactng an epoxide compound, an oxidated silicon compound and a polyisocyanate in the presence of a Lewis acid. The foam produced by this process may be utilized for thermal and sound insulation.
Inventors
- 👤 David H. Blount
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:13
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0066; C08G; C08G18/00; C08G18/003; C08G18/06; C08G18/08; C08G18/0804; C08G18/0819; C08G18/0828; C08G18/28; C08G18/30; C08G18/38; C08G18/3893; C08G18/3895; C09; C09D; C09D167/00; C09D167/06; C08G2110/00; C08G2110/0008; C08G2110/0016; C08G2110/0025; C08G2350/00; C08J2367/00; C08J2367/06
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
73 words
The process for the production of foamed poly(epoxide-polyisocyanate-silicate) product by mixing and reacting the following components: (a) an organic mono-or polyepoxide compound, 1 to 200 parts by weight; (b) an organic compound containing at least 2 isocyanate groups, 50 to 100 parts by weight; (c) a Lewis acid, up to 20% by weight, percentage based on weight of components (a) and (b); (d) an oxidated silicon compound, 1 to 50 parts by weight.
Claim 2
Dependent Claim
73 words
The process for the production of foamed poly(epoxide-polyisocyanate-silicate) product by mixing and reacting the following components: (a) an organic mono-or polyepoxide compound, 1 to 200 parts by weight; (b) an organic compound containing at least 2 isocyanate groups, 50 to 100 parts by weight; (c) a Lewis acid, up to 20% by weight, percentage based on weight of components (a) and (b); (d) an oxidated silicon compound, 1 to 50 parts by weight.
Claim 3
Dependent Claim
9 words
The product produced by the process of claim 1.
Claim 4
Dependent Claim
26 words
The process of claim 1 wherein the organic mono-epoxide compound is selected from the group consisting of olefin epoxides, epihalohydrin, styrene oxide, tetrahydrofuran and mixtures thereof.
Claim 5
Dependent Claim
32 words
The process of claim 1 wherein the organic compound containing at least 2 isocyanate radicals is selected from the group consisting of aliphatic, cycloaliphatic, araliphatic, aromatic and heterocyclic polyisocyanates and mixtures thereof.
Claim 6
Dependent Claim
45 words
The process of claim 1 wherein the organic compound containing at least 2 isocyanate radicals is selected from the group consisting of tolylene diisocyanate, phosgenated product of aniline-aldehyde condensation, phosgenated product of aniline-aldehyde condensation, phosgenated product of aniline-ketone condensation, isocyanate-terminated polyurethane prepolymer and mixtures thereof.
Claim 7
Dependent Claim
24 words
The process of claim 1 wherein the Lewis acid is selected from the group consisting of mineral acids, metal halides, alkali metal hydrogen salts.
Claim 8
Dependent Claim
15 words
The process of claim 1 and mixtures thereof wherein the Lewis acid is phosphoric acid.
Claim 9
Dependent Claim
28 words
The process of claim 1 wherein the mono-organic epoxide compound is selected from the group consisting of ethylene oxide, propylene oxide, epichlorohydrin, styrene oxide, tetrahydrofuran and mixtures thereof.
Claim 10
Dependent Claim
26 words
The process of claim 1 wherein the oxidated silicon compound is selected from the group consisting of polysilicic acid, hydrated silica, silicoformic acid and mixtures thereof.
Claim 11
Dependent Claim
62 words
The process of claim 1 wherein a polyepoxy compound is selected from the group consisting of aliphatic diepoxides, cycloaliphatic diepoxides, polyalkylene ether glycol bisepoxides, epoxided vegetable oils and mixtures thereof, said epoxy compounds having no reactive hydroxyl groups attached thereto is added with component (a) in an amount wherein up to 90% of the organic mono-epoxide is replaced with a polyepoxy compound.
Claim 12
Dependent Claim
37 words
The process of claim 1 wherein up to 50% by weight of a chemically inert blowing agent, boiling within the range of from -25° C. to 80° C. is added with Components (a), (b), (c) or (d).
Claim 13
Dependent Claim
37 words
The process of claim 1 wherein up to 200% by weight of a curing agent is added to the reacted mixture of components (a), (b), (c), and (d) while the mixture is still in a fluid state.
Claim 14
Dependent Claim
37 words
The process of claim 1 wherein up to 10% by weight of a polyisocyanate activator is added to the reacted mixture of components (a), (b), (c) and (d) while the mixture is still in a fluid state.
Claim 15
Dependent Claim
24 words
The process of claim 1 wherein up to 20% by weight of a foam stabilizer is added to components (a), (b), (c) or (d).
Claim 16
Dependent Claim
24 words
The process of claim 1 wherein up to 20% by weight of an emulsifying agent is added to components (a), (b), (c) or (d).
Claim 17
Dependent Claim
59 words
The process of claim 1 wherein an alkali compound selected from the group consisting of alkali metal compound, alkaline earth metal compound, and mixtures thereof is added to the reacting mixture of components (a), (b), (c) and (d) while still in a fluid state, in an amount wherein the alkali radicals are about equal to the Lewis acid radicals.
Claim 18
Dependent Claim
9 words
The product produced by the process of claim 10.
Claim 19
Dependent Claim
9 words
The product produced by the process of claim 12.
Claim 20
Dependent Claim
9 words
The product produced by the process of claim 16.
Claim 21
Dependent Claim
28 words
The process of claim 1 wherein an inert inorganic or organic particulate or fibrous filler material is added to the mixture of Components (a), (b), (c) and (d).
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) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |