US4499210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for producing open-cell cross linked polyolefin foam
Assignee: Union Carbide Corp
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Filing: 1983-12-15
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Granted: 1985-02-12
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Expires: 2003-12-15
Abstract
Abstract A composition suitable for open-cell polyolefin foam which comprises 100 parts by weight of olefin resin, 1 to 20 parts by weight of blowing agent, 0.3 to 10 parts by weight of organic peroxide crosslinking agent, 0.1 to 10 parts by weight of trifunctional monomer, and 1 to 5 parts by weight of silicone oil or a derivative thereof.
Inventors
- 👤 Akitaka Senuma
- 👤 Takao Aizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:40
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; C08F; C08F255/00; C08J9/0014; C08J2323/00; C08J2323/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A composition suitable for open-cell polyolefin foam which comprises 100 parts by weight of olefin resin, 1 to 20 parts by weight of blowing agent, 0.3 to 10 parts by weight or organic peroxide crosslinking agent, 0.1 to 10 parts by weight of trifunctional monomer, and 1 to 5 parts by weight of silicone oil or a derivative thereof, said organic peroxide having a 10-minute half-value temperature (T p ) of 110° C. to 170° C. and said blowing agent having a decomposition temperature (T f ) of 100° C. to 160° C., T p and T f satisfying the following equation: -10° C.≦T.sub.p -T.sub.f ≦50° C.
Claim 2
Dependent Claim
107 words
A composition suitable for open-cell polyolefin foam which comprises 100 parts by weight of olefin resin, 1 to 20 parts by weight of blowing agent, 0.3 to 10 parts by weight or organic peroxide crosslinking agent, 0.1 to 10 parts by weight of trifunctional monomer, and 1 to 5 parts by weight of silicone oil or a derivative thereof, said organic peroxide having a 10-minute half-value temperature (T p ) of 110° C. to 170° C. and said blowing agent having a decomposition temperature (T f ) of 100° C. to 160° C., T p and T f satisfying the following equation: -10° C.≦T.sub.p -T.sub.f ≦50° C.
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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) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |