US3954701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer composition containing inorganic filler
Assignee: Olin Corp
•
Filing: 1961-11-01
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Granted: 1976-05-04
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Expires: 1981-11-01
Abstract
Abstract 1. A composition for lining the combustion chamber of a rocket motor employing a solid propellant comprised of an epoxy resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 per cent by weight of an inert inorganic filler selected from the group consisting of carbon, ferric oxide, titanium dioxide and mixtures thereof.
Inventors
- 👤 Otto G. Schaffling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:14
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/12; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/14; C08K5/16; C08K5/29; C08K5/31; C08K5/32; C08K5/33; C08L; C08L13/00; C08L63/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
60 words
A composition for lining the combustion chamber of a rocket motor employing a solid propellant comprised of an epoxy resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 per cent by weight of an inert inorganic filler selected from the group consisting of carbon, ferric oxide, titanium dioxide and mixtures thereof.
Claim 2
Dependent Claim
60 words
A composition for lining the combustion chamber of a rocket motor employing a solid propellant comprised of an epoxy resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 per cent by weight of an inert inorganic filler selected from the group consisting of carbon, ferric oxide, titanium dioxide and mixtures thereof.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein said inert inorganic filler is ferric oxide.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein said inert inorganic filler is carbon.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein said inert inorganic filler is titanium dioxide.
Claim 6
Dependent Claim
20 words
The composition of claim 1 wherein said inert inorganic filler is a mixture of carbon, ferric oxide, and titanium dioxide.
Claim 7
Dependent Claim
56 words
A composition of matter comprised of the cured reaction product of an epoxy resin, a polyurethane resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 percent by weight of an inert inorganic filler selected from the group consisting of carbon, ferric oxide, titanium dioxide, and mixtures thereof.
Claim 8
Dependent Claim
56 words
A composition of matter comprised of the cured reaction product of an epoxy resin, a polyurethane resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 percent by weight of an inert inorganic filler selected from the group consisting of carbon, ferric oxide, titanium dioxide, and mixtures thereof.
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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) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |