US4824904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin compositions, laminates and block copolymers
Assignee: Kuraray Co Ltd
•
Filing: 1987-03-19
•
Granted: 1989-04-25
•
Expires: 2007-03-19
Abstract
Abstract The present invention relates to resin compositions and laminates using saponified ethylene-vinyl acetate copolymers containing a polyether component. Formed products and laminates obtained from the resin compositions are flexible, excellent in flexural fatigue resistance and gas barrier properties and extremely useful as flexible laminates.
Inventors
- 👤 Akimasa Aoyama
- 👤 Takeshi Moritani
- 👤 Kiyoshi Yonezu
- 👤 Takuji Okaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:08
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/306; C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815; C08L23/0846; C08L23/0853; C08L23/0861; C08L29/00; C08L29/02; C08L29/04; B32B2307/00; B32B2307/70; B32B2307/724; B32B2307/7242; C08L51/00; C08L51/06; C08L53/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
33 words
A resin composition comprising 95 to 50 parts by weight of a saponified ethylene-vinyl acetate copolymer and 5 to 50 parts by weight of a saponified ethylene-vinyl acetate copolymer containing a polyether component.
Claim 2
Dependent Claim
33 words
A resin composition comprising 95 to 50 parts by weight of a saponified ethylene-vinyl acetate copolymer and 5 to 50 parts by weight of a saponified ethylene-vinyl acetate copolymer containing a polyether component.
Claim 3
Dependent Claim
33 words
A resin composition as claimed in claim 1 wherein said saponified ethylene-vinyl acetate copolymer containing a polyether component is a block copolymer of the polyether component and the saponified ethylene-vinyl acetate copolymer component.
Claim 4
Dependent Claim
40 words
A resin composition as claimed in claim 1 wherein said saponified ethylene-vinyl acetate copolymer containing a polyether component is one that the polyether component is added as a branch polymer of the saponified ethylene-vinyl acetate copolymer in a grafted form.
Claim 5
Dependent Claim
41 words
A resin composition as claimed in claim 1 wherein said saponified ethylene-vinyl acetate copolymer containing a polyether component is one that the saponified ethylene-vinyl acetate copolymer component is added as a branch polymer of the polyether component in a grafted form.
Claim 6
Dependent Claim
16 words
A resin composition as claimed in claim 1 wherein said polyether component comprises an oxypropylene unit.
References Cited (Backward Citations)
US3322703A
Cited
US4619849A
Cited
US4576988A
Cited
US4608286A
Cited
US4613644A
Cited
US4640870A
Cited
US4636551A
Cited
US4645695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |