Patent US91949A successfully refreshed from Google Patents.
US4334615A
Expired / Lapsed
US
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Package for compounding rubber and compounded rubber
Assignee: Goodyear Tire and Rubber Co
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Filing: 1980-10-06
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Granted: 1982-06-15
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Expires: 2000-10-06
Abstract
Abstract A package comprised of (A) an article selected from unvulcanized rubber or compounding ingredients therefor and (B) a protective film of a thermoplastic ethylene/vinyl acetate copolymer containing anti-block agent and having a vinyl acetate content in the range of 11 to 22 percent. The invention further relates to a compounded rubber comprised of a mixture of unsaturated rubber and a package of compounding ingredients contained in the ethylene/vinyl acetate copolymer film.
Inventors
- 👤 Kim D. Butler
- 👤 Ray A. Young
- 👤 Alfred L. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:55
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/223; B; B65; B65D; B65D65/00; B65D65/38; C08J2321/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1345
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
128 words
A bag of ethylene/vinyl acetate film having an opening at its top which can be heat sealed; where said film has a thickness in the range of about 0.5 to about 10 mils and is comprised of a thermoplastic ethylene/vinyl acetate copolymer containing an anti-block agent and having a vinyl acetate content in the range of about 11 to about 22 percent and further characterized, when having a thickness of about 2 to 4 mils, by a melting point in the range of about 85° C. to about 95° C., a minimum ultimate tensile strength at 25° C. of about 1850 psi, an oil solubility melt index of about 63° C. to about 75° C. and a minimum 300 percent modulus at 25° C. of about 700 psi.
Claim 2
Dependent Claim
128 words
A bag of ethylene/vinyl acetate film having an opening at its top which can be heat sealed; where said film has a thickness in the range of about 0.5 to about 10 mils and is comprised of a thermoplastic ethylene/vinyl acetate copolymer containing an anti-block agent and having a vinyl acetate content in the range of about 11 to about 22 percent and further characterized, when having a thickness of about 2 to 4 mils, by a melting point in the range of about 85° C. to about 95° C., a minimum ultimate tensile strength at 25° C. of about 1850 psi, an oil solubility melt index of about 63° C. to about 75° C. and a minimum 300 percent modulus at 25° C. of about 700 psi.
Claim 3
Dependent Claim
13 words
The bag of claim 1, having its opening at its top heat sealed.
References Cited (Backward Citations)
US4248348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |