Patent US3886111A successfully refreshed from Google Patents.
US3886111A
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Hardenable compositions
Assignee: Zeon Corp
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Filing: 1973-12-21
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Granted: 1975-05-27
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Expires: 1993-12-21
Abstract
Abstract A hardenable composition comprising (A) a modified polypentadiene containing at least two hydroxyl groups in its molecular structure and of a hydroxyl value of 70-250, said modified polypentadiene being obtained by introducing the hydroxyl and acyloxy groups to the unsaturated double bonds of a liquid polypentadiene of a number average molecular weight of 300-5,000, (B) an organic diisocyanate compound and (C) a solvent which dissolves the modified polypentadiene and, in addition, is inert to the isocyanate group. The composition excels in coating and adhesive properties when cured.
Inventors
- 👤 Hikoji Yoshimura
- 👤 Yuji Nakagawa
- 👤 Hiroshi Yaginuma
- 👤 Atsutane Kimi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:09
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/04; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/6705; C08G18/69; C08K; C08K5/00; C08K5/16; C08K5/29
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
146 words
A HARDENABLE COMPOSITION COMPRISING (A) A MODIFIED POLYPENTADIENE CONTAINING AT LEAST TWO HYDROXYL GROUPS IN ITS MOLECULAR STRUCTURRE AND OF A HYDROXYL VALUE OF 70 - 250, SAID MODIFIED POLYPENTADIENE BEING OBTAINED BY INTRODUCING THE HYDROXYL AND ACYLOXY GROUPS TO THE UNSATURATED DOUBLE BONDS OF A LIQUID POLYPENTADIENE OF A NUMBER AVERAGE MOLECULAR WEIGHT OF 300 - 5,000, SAID MODIFIED POLYPENTADIENE CONTAINING 0.3 - 1 ACYLOXY GROP PER HYDROXYL GROUP, (B) AN ORGANIC DIISOCYANATE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE ALIHATIC DIISOCYANATE, AROMATIC DIISOCYANATE AND THE MIXTURES OF AT LEAST TWO OF THESE COMPOUNDS, SAID ORGANIC DIISOCYANATE COMPOUND IS PRESENT IN AN AMOUNT SUCH THAT 0.3 - 4.0 EQUIVALENTS OF THE ISOCYANATE GROUPS ARE PRESENT PER EQUIVALENT OF THE HYDROXYL GROU CONTAINED IN SAID MODIFIED POLPENTADIENE AND (C) A SOLVENT WHICH DISSOLVES THE MODIFIED POLYPENTADIENE AND, IN ADDITION, IS INERT TO THE ISOCYANATE GROUP.
Claim 2
Dependent Claim
146 words
A HARDENABLE COMPOSITION COMPRISING (A) A MODIFIED POLYPENTADIENE CONTAINING AT LEAST TWO HYDROXYL GROUPS IN ITS MOLECULAR STRUCTURRE AND OF A HYDROXYL VALUE OF 70 - 250, SAID MODIFIED POLYPENTADIENE BEING OBTAINED BY INTRODUCING THE HYDROXYL AND ACYLOXY GROUPS TO THE UNSATURATED DOUBLE BONDS OF A LIQUID POLYPENTADIENE OF A NUMBER AVERAGE MOLECULAR WEIGHT OF 300 - 5,000, SAID MODIFIED POLYPENTADIENE CONTAINING 0.3 - 1 ACYLOXY GROP PER HYDROXYL GROUP, (B) AN ORGANIC DIISOCYANATE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE ALIHATIC DIISOCYANATE, AROMATIC DIISOCYANATE AND THE MIXTURES OF AT LEAST TWO OF THESE COMPOUNDS, SAID ORGANIC DIISOCYANATE COMPOUND IS PRESENT IN AN AMOUNT SUCH THAT 0.3 - 4.0 EQUIVALENTS OF THE ISOCYANATE GROUPS ARE PRESENT PER EQUIVALENT OF THE HYDROXYL GROU CONTAINED IN SAID MODIFIED POLPENTADIENE AND (C) A SOLVENT WHICH DISSOLVES THE MODIFIED POLYPENTADIENE AND, IN ADDITION, IS INERT TO THE ISOCYANATE GROUP.
Claim 3
Dependent Claim
43 words
A composition of claim 1 wherein up to 50% by weight of said modified polypentadiene (A) has been replaced with a polyfunctional polymer (A'') of a number average molecular weight of 500 - 4,000 and having active hydrogen-containing functional groups at its end.
Claim 4
Dependent Claim
45 words
A composition of claim 2 wherein said organic diisocyanate compound (B) is contained in an amount such that 0.3 - 4.0 equivalents of the isocyanate groups are contained per equivalent of the hydroxyl groups contained in the modified polypentadiene (A) and the polyfunctional polymer (A'').
Claim 5
Dependent Claim
39 words
A composition of claim 1 wherein said solvent is contained in an amount of 70 - 900 parts by weight per 100 parts by weight of the total amount of said modified polypentadiene (A) and organic diisocyanate compound (B).
Claim 6
Dependent Claim
42 words
A composition of claim 2 wherein said solvent is contained in an amount of 70 - 900 parts by weight per 100 parts by weight of the total amount of said modified polypentadiene (A), polyfunctional polymer (A'') and organic diisocyanate compound (B).
Claim 7
Dependent Claim
45 words
A composition of claim 1 wherein said modified polypentadiene is derived a liquid polypentadiene containing at least 70% of the trans configuration and of an iodine value of at least 100 obtained by the cationic polymerization which uses as catalyst a homogeneous type Friedel-Crafts catalyst.
Claim 8
Dependent Claim
24 words
A composition of claim 1 wherein said acyloxy group is a member selected from the class consisting of the formyloxy, acetoxy and benzoyloxy groups.
Claim 9
Dependent Claim
23 words
A composition of claim 1 wherein said solvent is selected from the group consisting of the hydrocarbons, esters, ketones, ethers and halogenated hydrocarbons.
Claim 10
Dependent Claim
23 words
A composition of claim 1 wherein said polyfunctional polymer (A'') is selected from the group consisting of the polyetherdiols, triols, polyesterdiols and polybutadienediols.
References Cited (Backward Citations)
US3714110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |