US4913971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive mixture
Assignee: Bayer AG
•
Filing: 1989-04-27
•
Granted: 1990-04-03
•
Expires: 2009-04-27
Abstract
Abstract Mixtures of (A) from 20 to 99 parts by weight of a soluble polyurethane, (B) up to 50 parts by weight of an aromatic vinyl compound/diene block polymer, (C) from 0.5 to 50 parts by weight of a modified aromatic vinyl compound/diene polymer and (D) from 0 to 10 parts by weight of a polyisocyanate, optionally dissolved in an organic solvent, have proved to be excellent adhesives.
Inventors
- 👤 Manfred Beck
- 👤 Horst Muller-Albrecht
- 👤 Heinrich Konigshofen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:42
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C09; C09J; C09J175/00; C09J175/04; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/08; C08L2666/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31558; Y10T428/31569; Y10T428/31573; Y10T428/31587
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
63 words
Mixtures of (A) from 20 to 99 parts by weight of a polyurethane, (B) from 0.5 to 50 parts by weight of an non-halo-genated aromatic vinyl compound/diene block polymer, (C) from 0.5 to 50 parts by weight of a halogen modified aromatic vinyl compound/diene polymer and (D) from 0 to 10 parts by weight of a polyisocyanate optionally dissolved in an organic solvent.
Claim 2
Dependent Claim
63 words
Mixtures of (A) from 20 to 99 parts by weight of a polyurethane, (B) from 0.5 to 50 parts by weight of an non-halo-genated aromatic vinyl compound/diene block polymer, (C) from 0.5 to 50 parts by weight of a halogen modified aromatic vinyl compound/diene polymer and (D) from 0 to 10 parts by weight of a polyisocyanate optionally dissolved in an organic solvent.
Claim 3
Dependent Claim
21 words
Mixtures as claimed in claim 1, in which component C is a polymer obtained by chlorination of a styrene/butadiene block polymer.
Claim 4
Dependent Claim
16 words
Rubber, leather or plastic articles bonded to a substrate by the mixture according to claim 1.
Claim 5
Dependent Claim
13 words
The articles according to claim 3 wherein the substrate is styrene/butadiene block polymer.
Claim 6
Dependent Claim
12 words
The articles according to claim 3 wherein said mixture contains a polyisocyanate.
Claim 7
Dependent Claim
13 words
Rubber, leather or plastic articles coated with the mixture according to claim 1.
References Cited (Backward Citations)
US3970717A
Cited
US3917742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |