US3917554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butadiene-acrylonitrile alternating copolymer solution-type adhesive
Assignee: Bridgestone Corp
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Filing: 1973-10-10
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Granted: 1975-11-04
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Expires: 1993-10-10
Abstract
Abstract A butadiene-acrylonitrile alternating copolymer solution-type adhesive having 5-50 parts by weight of an adhesive composition composed of 100 parts by weight of a butadiene-acrylonitrile alternating copolymer having a degree of alternation of not lower than 92 and an intrinsic viscosity of not lower than 1.0 and containing no gel, which is prepared from butadiene and acrylonitrile in the presence of a catalyst consisting of a component (A) of a compound of metals of the groups IV-b and V-b in the Periodic Table and a component (B) of an organoaluminum compound, and 30-100 parts by weight of a phenol resin dissolved in 100 parts by weight of a solvent. This solution-type adhesive has excellent adhesion and storage stability and is used for adhering rubbers, plastics, fibers, woods and metals.
Inventors
- 👤 Sakae Inoue
- 👤 Ken Yoneyama
- 👤 Motokazu Kikuchi
- 👤 Nobuyuki Kataoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:09
CPC Classifications
C; C09; C09J; C09J109/00; C09J109/02; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08F236/12; C09J161/00; C09J161/04; C09J161/06; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/14; C08L2666/16; C08L33/00; C08L33/18; C08L33/20; C08L61/00; C08L9/00; C08L9/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
122 words
A BUTADIENE-ACRYLONITRILE ALTERNATING COPOLYMER SOLUTIONTYPE ADHESIVE HAVING 5-50 PARTS BY WEIGHT OF AN ADHESIVE COMPOSITION COMPOSED OF 100 PARTS BY WEIGHT OF A BUTADIENEACRYLONITRILE ALTERNATING COMPOLYMER HAVING A DEGREE OF ALTERNATION OF NOT LOWER THAN 92 AND AN INTRINSIC VISCOSITY OF NOT LOWER THAN 1.0 IN DIMETHYLFORMAMIDE AT 30*C AND CONTAINING NO GEL, WHEREIN THE BUTADIENE UNITS HAVE A MICROSTRUCTURE OF SUBSTANTIALLY COMPLETE TRANS- 1,4 BOND, AND 30-100 PARTS BY WEIGHT OF A PHENOL RESIN DISSOLVED IN 100 PARTS BY WEIGHT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF KETONES, AMIDES, HALOGENATED HYDROCARBONS AND ETHERS, A MIXTED SOLVENT OF TWO OR THREE OF THE SOLVENTS OR A MIXED SOLVENT OF SAID SOLVENT WITH AT LEAST ONE OF AROMATIC HYDROCARBONS AND ALCHOLS.
Claim 2
Dependent Claim
122 words
A BUTADIENE-ACRYLONITRILE ALTERNATING COPOLYMER SOLUTIONTYPE ADHESIVE HAVING 5-50 PARTS BY WEIGHT OF AN ADHESIVE COMPOSITION COMPOSED OF 100 PARTS BY WEIGHT OF A BUTADIENEACRYLONITRILE ALTERNATING COMPOLYMER HAVING A DEGREE OF ALTERNATION OF NOT LOWER THAN 92 AND AN INTRINSIC VISCOSITY OF NOT LOWER THAN 1.0 IN DIMETHYLFORMAMIDE AT 30*C AND CONTAINING NO GEL, WHEREIN THE BUTADIENE UNITS HAVE A MICROSTRUCTURE OF SUBSTANTIALLY COMPLETE TRANS- 1,4 BOND, AND 30-100 PARTS BY WEIGHT OF A PHENOL RESIN DISSOLVED IN 100 PARTS BY WEIGHT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF KETONES, AMIDES, HALOGENATED HYDROCARBONS AND ETHERS, A MIXTED SOLVENT OF TWO OR THREE OF THE SOLVENTS OR A MIXED SOLVENT OF SAID SOLVENT WITH AT LEAST ONE OF AROMATIC HYDROCARBONS AND ALCHOLS.
Claim 3
Dependent Claim
43 words
The solution-type adhesive as claimed in claim 1, wherein said solvent is a member selected from the group consisting of methyl ethyl ketone, dimethylformamide, methylene chloride, chloroform, ethylene dichloride and tetrahydrofuran, and a mixed solvent of said solvent with toluene and isopropyl alcohol.
Claim 4
Dependent Claim
32 words
The solution-type adhesive as claimed in claim 1, wherein said adhesive composition is composed of 100 parts by weight of the alternating copolymer and 40-80 parts by weight of a phenol resin.
Claim 5
Dependent Claim
34 words
The solution-type adhesive as claimed in claim 1, wherein said adhesive composition is dissolved in the solvent in an amount of 10-30 parts by weight based on 100 parts by weight of the solvent.
Claim 6
Dependent Claim
20 words
The solution-type adhesive as claimed in claim 1, wherein said butadiene-acrylonitrile has a degree of alternation not lower than 95.
Claim 7
Dependent Claim
22 words
The solution-type adhesive as claimed in claim 1, wherein said butadiene-acrylonitrile has an intrinsic viscosity of from 1.3-2.0 in dimethylformadide at 30*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |