US4908339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible glass
Assignee: Individual
•
Filing: 1989-04-18
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Granted: 1990-03-13
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Expires: 2009-04-18
Abstract
Abstract Alkali metal silicate glass is mixed with water to form an aqueous alkali metal silicate glass suspension, then dried to form a flexible solid alkali metal silicate glass product which may be heated to above the boiling temperature of water to produce a cellular product. The flexible solid product may be utilized as a flexible film, as an adhesive, a coating agent and a binding agent. The foamed product may be used for thermal and sound insulation.
Inventors
- 👤 David H. Blount
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:32
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/40; C; C01; C01B; C01B33/00; C01B33/20; C01B33/32; C01B33/325; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C04B38/00; C04B38/02; D21H17/00; D21H17/63; D21H17/67; D21H17/68; D21H19/44; D21H19/64; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S65/00; Y10S65/90; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
163 words
A flexible alkali metal silicate glass-polymerized organic compound product produced by the following steps: (a) mixing 10 to 80 parts by weight of alkali metal glass having a SiO 2 :alkali metal oxide ratio of 3.9:1 to 2.0:1 with 50 to 100 parts by weight of water until an aqueous alkali metal silicate glass suspension is produced; (b) admixing up to 300 percent by weight, based on weight of the aqueous alkali metal silicate glass suspension, of a polymerizable organic compound selected from the group consisting of vinyl monomers, diene monomers and mixtures thereof; (c) admixing and reacting up to 10 percent by weight, based on the weight of the aqueous alkali metal silicate glass suspension, of a free-radical initiator; (d) thereby producing an aqueous alkali metal silicate glass-polymerized organic compound suspension; (e) pouring or applying the aqueous alkali metal silicate glass-polymerized organic compound suspension into the desired form; (f) drying out water from the aqueous alkali metal silicate glass-polymerized organic compound suspension.
Claim 2
Dependent Claim
163 words
A flexible alkali metal silicate glass-polymerized organic compound product produced by the following steps: (a) mixing 10 to 80 parts by weight of alkali metal glass having a SiO 2 :alkali metal oxide ratio of 3.9:1 to 2.0:1 with 50 to 100 parts by weight of water until an aqueous alkali metal silicate glass suspension is produced; (b) admixing up to 300 percent by weight, based on weight of the aqueous alkali metal silicate glass suspension, of a polymerizable organic compound selected from the group consisting of vinyl monomers, diene monomers and mixtures thereof; (c) admixing and reacting up to 10 percent by weight, based on the weight of the aqueous alkali metal silicate glass suspension, of a free-radical initiator; (d) thereby producing an aqueous alkali metal silicate glass-polymerized organic compound suspension; (e) pouring or applying the aqueous alkali metal silicate glass-polymerized organic compound suspension into the desired form; (f) drying out water from the aqueous alkali metal silicate glass-polymerized organic compound suspension.
Claim 3
Dependent Claim
13 words
The product of claim 1 wherein the alkali metal silicate is sodium silicate.
Claim 4
Dependent Claim
28 words
The product of claim 1 wherein up to 300 percent by weight of inert filler material, based on the weight of the aqueous alkali metal silicate glass suspension.
Claim 5
Dependent Claim
63 words
The product of claim 1 wherein up to 30 percent by weight, based on the weight of the aqueous alkali metal silicate glass suspension, of an alkali metal silicate solution having a SiO 2 :alkali oxide ratio of 2.0:1 to 3.75:1 and contains 10 to 50 percent by weight of alkali metal silicate, is added to the aqueous alkali metal silicate glass suspension.
Claim 6
Dependent Claim
59 words
The product of claim 1 wherein up to 100 percent by weight, based on the weight of the aqueous alkali metal silicate suspension, of an oxidated silicon compound selected from the group consisting of silicic acid, polysilicic acid, hydrated silica, precipitated silica, microcrystalline silica, colloidal silica and mixtures thereof is added to the aqueous alkali metal silicate glass suspension.
Claim 7
Dependent Claim
16 words
The product of claim 1 wherein the product is placed in an atmosphere of carbon dioxide.
Claim 8
Dependent Claim
40 words
The product of claim 1 wherein up to 30 percent by weight of a salt-forming compound, based on the weight of the aqueous alkali metal silicate glass suspension, is added to the aqueous alkali metal silicate glass-polymerized organic compound suspension.
Claim 9
Dependent Claim
145 words
A flexible sodium silicate-polymerized vinyl monomer product produced by the following steps: (a) mixing 10 to 80 parts by weight of sodium silicate glass having a SiO 2 :alkali metal oxide ratio of 3.9:1 to 2.0:1 with 50 to 100 parts by weight of water until an aqueous alkali metal silicate glass suspension is produced; (b) admixing up to 300 percent by weight, based on weight of the aqueous alkali metal silicate glass suspension, of a vinyl monomer; (c) admixing and reacting up to 10 percent by weight, based on the weight of the aqueous alkali metal silicate glass suspension, of a free-radical initiator; (d) thereby producing an aqueous sodium silicate glass-polymerized vinyl monomer suspension; (e) pouring or applying the aqueous sodium silicate glass-polymerized vinyl monomer suspension into the desired form; (f) drying out the water from the aqueous sodium silicate glass-polymerized vinyl monomer suspension.
Claim 10
Dependent Claim
145 words
A flexible sodium silicate-polymerized vinyl monomer product produced by the following steps: (a) mixing 10 to 80 parts by weight of sodium silicate glass having a SiO 2 :alkali metal oxide ratio of 3.9:1 to 2.0:1 with 50 to 100 parts by weight of water until an aqueous alkali metal silicate glass suspension is produced; (b) admixing up to 300 percent by weight, based on weight of the aqueous alkali metal silicate glass suspension, of a vinyl monomer; (c) admixing and reacting up to 10 percent by weight, based on the weight of the aqueous alkali metal silicate glass suspension, of a free-radical initiator; (d) thereby producing an aqueous sodium silicate glass-polymerized vinyl monomer suspension; (e) pouring or applying the aqueous sodium silicate glass-polymerized vinyl monomer suspension into the desired form; (f) drying out the water from the aqueous sodium silicate glass-polymerized vinyl monomer suspension.
Claim 11
Dependent Claim
144 words
A flexible sodium silicate-polymerized diene monomer product produced by the following steps: (a) mixing 10 to 80 parts by weight of sodium silicate glass having a SiO 2 :alkali metal oxide ratio of 3.9:1 to 2.0:1 with 50 to 100 parts by weight of water until an aqueous alkali metal silicate glass suspension is produced; (b) admixing up to 300 percent by weight, based on weight of the aqueous alkali metal silicate glass suspension, of a diene monomer; (c) Admixing and reacting up to 10 percent by weight, based on the weight of the aqueous alkali metal silicate glass suspension, of a free-radical initiator; (d) thereby producing an aqueous sodium silicate glass-polymerized diene monomer suspension; (e) pouring or applying the aqueous sodium silicate glass-polymerized diene monomer suspension into the desired form; (f) drying the water from the aqueous sodium silicate glass-polymerized diene monomer suspension.
Claim 12
Dependent Claim
144 words
A flexible sodium silicate-polymerized diene monomer product produced by the following steps: (a) mixing 10 to 80 parts by weight of sodium silicate glass having a SiO 2 :alkali metal oxide ratio of 3.9:1 to 2.0:1 with 50 to 100 parts by weight of water until an aqueous alkali metal silicate glass suspension is produced; (b) admixing up to 300 percent by weight, based on weight of the aqueous alkali metal silicate glass suspension, of a diene monomer; (c) Admixing and reacting up to 10 percent by weight, based on the weight of the aqueous alkali metal silicate glass suspension, of a free-radical initiator; (d) thereby producing an aqueous sodium silicate glass-polymerized diene monomer suspension; (e) pouring or applying the aqueous sodium silicate glass-polymerized diene monomer suspension into the desired form; (f) drying the water from the aqueous sodium silicate glass-polymerized diene monomer suspension.
Claim 13
Dependent Claim
124 words
Aqueous alkali metal silicate glass-polymerized organic compound suspension produced by the process which consist of mixing and reacting the following components: (a) aqueous alkali metal silicate glass suspension containing 10 to 80 parts by weight of alkali metal silicate glass having a SiO 2 :alkali metal oxide ratio of 3.9:1 to 2.0:1 in 50 to 100 parts by weight of water; (b) polymerizable organic compound selected from the group consisting of vinyl monomers, diene monomers and mixtures thereof, in the amount of up to 300 percent by weight, based on weight of the aqueous alkali metal silicate glass suspension; (c) free-radical initiator, in the amount of up to 10 percent by weight based on the weight of the aqueous alkali metal silicate glass suspension.
Claim 14
Dependent Claim
124 words
Aqueous alkali metal silicate glass-polymerized organic compound suspension produced by the process which consist of mixing and reacting the following components: (a) aqueous alkali metal silicate glass suspension containing 10 to 80 parts by weight of alkali metal silicate glass having a SiO 2 :alkali metal oxide ratio of 3.9:1 to 2.0:1 in 50 to 100 parts by weight of water; (b) polymerizable organic compound selected from the group consisting of vinyl monomers, diene monomers and mixtures thereof, in the amount of up to 300 percent by weight, based on weight of the aqueous alkali metal silicate glass suspension; (c) free-radical initiator, in the amount of up to 10 percent by weight based on the weight of the aqueous alkali metal silicate glass suspension.
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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) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |