US4371653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving the electrical properties of polymeric insulations containing polar additives, and the improved polymeric insulation product thereof
Assignee: Vulkor Inc
•
Filing: 1979-08-13
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Granted: 1983-02-01
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Expires: 1999-08-13
Abstract
Abstract The electrical properties of polymeric dielectric materials or compounds including polar additives are enhanced by a method of treating the polar additives with a reactive silicone liquid, and the improved polymeric insulation products of the method.
Inventors
- 👤 Joseph E. Betts
- 👤 Fred F. Holub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:32
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C08K9/06; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; H01B3/46; H01B3/465
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
A halogen-containing flame retardant comprising the heat reaction product of a halogen-containing organic flame retardant and a heat reactive, liquid silicone polymer comprising the product of a combination of a major amount of difunctional (CH 3 ) 2 SiO monomer units and a minor amount of trifunctional CH 3 SiO 1 .5 monomer units.
Claim 2
Dependent Claim
54 words
A halogen-containing flame retardant comprising the heat reaction product of a halogen-containing organic flame retardant and a heat reactive, liquid silicone polymer comprising the product of a combination of a major amount of difunctional (CH 3 ) 2 SiO monomer units and a minor amount of trifunctional CH 3 SiO 1 .5 monomer units.
Claim 3
Dependent Claim
53 words
A halogen-containing flame retardant comprising the heat reaction product of a halogen-containing organic flame retardant and a heat reactive, liquid silicone polymer comprising the product of about 7 mole percent of trifunctional CH 3 SiO 1 .5 monomer units and about 93 mole percent of difunctional (CH 3 ) 2 SiO monomer units.
Claim 4
Dependent Claim
53 words
A halogen-containing flame retardant comprising the heat reaction product of a halogen-containing organic flame retardant and a heat reactive, liquid silicone polymer comprising the product of about 7 mole percent of trifunctional CH 3 SiO 1 .5 monomer units and about 93 mole percent of difunctional (CH 3 ) 2 SiO monomer units.
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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) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |