Patent US4106334A successfully refreshed from Google Patents.
Patent US3960989A successfully refreshed from Google Patents.
US3960989A
Expired / Lapsed
US
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Colloidal sol antimony pentaoxide flameproofing compositions
Assignee: Individual
•
Filing: 1974-11-21
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Granted: 1976-06-01
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Expires: 1994-11-21
Abstract
Abstract This disclosure deals with novel antimony oxide colloidal sols and formulations of the same containing halogens that provide a vastly improved fire-retarding quality to textiles, plastics and other materials to which the compounds are applied.
Inventors
- 👤 Henry G. Petrow
- 👤 Robert J. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:03
CPC Classifications
B; B82; B82Y; B82Y30/00; C; C01; C01G; C01G30/00; C01G30/004; C01G30/005; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/2279; C09; C09K; C09K21/00; C09K21/02; D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/11; D21H17/63; D21H17/67; D21H17/675; D21H21/00; D21H21/14; D21H21/34; D21H5/00; D21H5/0002; C01P; C01P2004/00; C01P2004/60; C01P2004/62; C01P2004/64
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
35 words
A flame retardant comprising a colloidal sol of Sb 2 O 5 having colloidal particle size ranging from substantially 20 Angstroms to 1/10 micron and in which an effective amount of a halogen is added.
Claim 2
Dependent Claim
35 words
A flame retardant comprising a colloidal sol of Sb 2 O 5 having colloidal particle size ranging from substantially 20 Angstroms to 1/10 micron and in which an effective amount of a halogen is added.
Claim 3
Dependent Claim
24 words
A flame-retardant as claimed in claim 1 and in which the ratio of halogen-to-antimony lies within the range of from substantially 1-4 to 20-1.
Claim 4
Dependent Claim
14 words
A flame-retardant as claimed in claim 2 and in which the halogen is chlorine.
Claim 5
Dependent Claim
34 words
A flame-retardant as claimed in claim 3 and in which the chlorine is contained in a compound selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, and copolymers and mixtures of the same.
Claim 6
Dependent Claim
14 words
A flame-retardant as claimed in claim 2 and in which the halogen is bromine.
Claim 7
Dependent Claim
47 words
A flame retardant as claimed in claim 2 to which has been added base sufficient to adjust the pH to the range of from substantially 1.5 to 10, the base-added sol being concentrated from the order of 2% by weight of solvents to up to 75 percent.
References Cited (Backward Citations)
US3676362A
Cited
US3766065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |