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US4200697A
Expired / Lapsed
US
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Process for the production of polyester silicate plastics
Assignee: Individual
•
Filing: 1979-02-07
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Granted: 1980-04-29
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Expires: 1999-02-07
Abstract
Abstract Unsaturated polyester resins will form foamed or solid plastics with water-binding agents containing an oxidated silicon compound in the presence of an initiator.
Inventors
- 👤 David H. Blount
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:47
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0066; C08K; C08K3/00; C08K3/01; C08K3/34; C08G; C08G2110/00; C08G2110/0008; C08G2110/0016; C08G2110/0025; C08G2350/00; C08J2367/00; C08J2367/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
139 words
The process for the production of polyester silicate plastic by mixing the following components: (a) 15 to 70 parts by weight of an unsaturated polyester resin which consists of a solution of an unsaturated linear polymer in a liquid monomer that is capable of copolymerizing with the linear polymer; (b) a catalytic amount of a free-radical initiator; (c) 30 to 80 parts by weight of an inorganic water-binding agent, said water-binding agent being capable of absorbing water to form a solid or a gel and being based on the weight of Components (a) and (b); (d) 1 to 4 parts by weight of water to each 4 parts by weight of the inorganic water-binding agent, with the proviso that Component (d) is added last and that an oxidated silicon compound is added with one or more of the components.
Claim 2
Dependent Claim
139 words
The process for the production of polyester silicate plastic by mixing the following components: (a) 15 to 70 parts by weight of an unsaturated polyester resin which consists of a solution of an unsaturated linear polymer in a liquid monomer that is capable of copolymerizing with the linear polymer; (b) a catalytic amount of a free-radical initiator; (c) 30 to 80 parts by weight of an inorganic water-binding agent, said water-binding agent being capable of absorbing water to form a solid or a gel and being based on the weight of Components (a) and (b); (d) 1 to 4 parts by weight of water to each 4 parts by weight of the inorganic water-binding agent, with the proviso that Component (d) is added last and that an oxidated silicon compound is added with one or more of the components.
Claim 3
Dependent Claim
24 words
The process of claim 1 wherein the water-binding agent is selected from the group consisting of hydraulic cement, synthetic anhydrite, gypsum or burnt lime.
Claim 4
Dependent Claim
36 words
The process of claim 1 wherein the initiator is selected from the group consisting of an organic peroxide, an inorganic peroxide, alkali metal persulfate, ammonium persulfate, a redox system and a peroxide with a metal catalyst.
Claim 5
Dependent Claim
48 words
The process of claim 1 wherein from 0% up to 50% by weight, based on the reaction mixture, of a chemically-inert blowing agent, boiling within the range of from -25° C. to 80° C., is added, and the reaction mixture is allowed to react to completion while foaming.
Claim 6
Dependent Claim
19 words
The process of claim 1 wherein the mixture contains from 0% up to 20% by weight of surface-active additives.
Claim 7
Dependent Claim
19 words
The process of claim 1 wherein inorganic or organic particulates or pulverulent materials are added to the reaction mixture.
Claim 8
Dependent Claim
8 words
The product of the process of claim 1.
Claim 9
Dependent Claim
54 words
The process of claim 1 wherein the oxidated silicon compound is selected from the group consisting of silica, alkali metal silicate, alkaline earth metal silicates, natural silicates containing free silicic acid groups and mixtures thereof, and added in the ratio of oxidated silicon compound to organic components of 70:30 to 20:80 parts by weight.
Claim 10
Dependent Claim
32 words
The product, foamed polyester silicate plastic, as produced by the process of claim 4, wherein up to 50% by weight, based on the reaction mixture, of the chemically-inert blowing agent is added.
References Cited (Backward Citations)
US4125498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |