Patent US3879328A successfully refreshed from Google Patents.
US3879328A
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Curable compositions of polymers containing labile hydroxyl groups
Assignee: Dow Chemical Co
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Filing: 1972-07-17
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Granted: 1975-04-22
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Expires: 1992-07-17
Abstract
Abstract Compositions of synthetic polymers containing labile hydroxyl groups such as vinylbenzyl alcohol polymers are efficiently cured by incorporating therein an acid catalyst such as hydrochloric acid or sulfuric acid. The curable compositions containing the acid catalyst are made stable for storing by incorporating therein an amount of water or volatile alcohol which is at least equimolar to labile hydroxyl groups of the polymer. The curable compositions can be stored for substantial periods without curing and then applied as coatings which cure upon volatilization of the alcohol.
Inventors
- 👤 Giffin D Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:02
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08K; C08K3/00; C08K3/18; C08K3/24; C08K5/00; C08K5/04; C08K5/05
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
86 words
A CURABLE COMPOSITION CONSISTING ESSENTIALLY OF A POLYMER CONTANING LABILE HYDROXYL GROUPS, A CATALYTIC AMOUNT OF AN ACID CATALYST AND A HYDROXYL COMPONENT SELECTED FROM THE GROUP CONSISTING OF A VOLATILE ALCOHOL HAVING FROM 1 TO 4 CARBON ATOMS, WATER OR MIXTURE THEREOF IN AN AMOUNT SUFFICIENT TO STABILIZE THE COMPOSITION AGAINST THE FORMATION OF CROSSLINKAGES, SAID POLYMER BEING A POLYMER OF AT LEAST 2 WEIGHT PERCENT OF (1) A LABILE HYDROXYL MONOMER SELECTED FROM THE GROUP CONSISTING OF (A) VINYLBENZYL ALCOHOL HAVING THE GENERAL STRUCTURE:
Claim 2
Dependent Claim
86 words
A CURABLE COMPOSITION CONSISTING ESSENTIALLY OF A POLYMER CONTANING LABILE HYDROXYL GROUPS, A CATALYTIC AMOUNT OF AN ACID CATALYST AND A HYDROXYL COMPONENT SELECTED FROM THE GROUP CONSISTING OF A VOLATILE ALCOHOL HAVING FROM 1 TO 4 CARBON ATOMS, WATER OR MIXTURE THEREOF IN AN AMOUNT SUFFICIENT TO STABILIZE THE COMPOSITION AGAINST THE FORMATION OF CROSSLINKAGES, SAID POLYMER BEING A POLYMER OF AT LEAST 2 WEIGHT PERCENT OF (1) A LABILE HYDROXYL MONOMER SELECTED FROM THE GROUP CONSISTING OF (A) VINYLBENZYL ALCOHOL HAVING THE GENERAL STRUCTURE:
Claim 3
Dependent Claim
86 words
A curable composition consisting essentially of a polymer containing labile hydroxyl groups, a catalytic amount of an acid catalyst and a hydroxyl component selected from the group consisting of a volatile alcohol having from 1 to 4 carbon atoms, water or mixture thereof in an amount sufficient to stabilize the composition against the formation of crosslinkages, said polymer being a polymer of at least 2 weight percent of (1) a labile hydroxyl monomer selected from the group consisting of (a) vinylbenzyl alcohol having the general structure:
Claim 4
Dependent Claim
86 words
A curable composition consisting essentially of a polymer containing labile hydroxyl groups, a catalytic amount of an acid catalyst and a hydroxyl component selected from the group consisting of a volatile alcohol having from 1 to 4 carbon atoms, water or mixture thereof in an amount sufficient to stabilize the composition against the formation of crosslinkages, said polymer being a polymer of at least 2 weight percent of (1) a labile hydroxyl monomer selected from the group consisting of (a) vinylbenzyl alcohol having the general structure:
Claim 5
Dependent Claim
45 words
The curable composition of claim 1 wherein the amount of hydroxyl component is sufficient to provide at least 3 hydroxyl groups in the hydroxyl component per labile hydroxyl group in the polymer, said labile hydroxyl group being attached to a benzylic or allylic carbon atom.
Claim 6
Dependent Claim
27 words
The composition according to claim 1, wherein the polymer is an addition polymer of at least about 50 weight percent of vinylbenzyl alcohol represented by the structure:
Claim 7
Dependent Claim
16 words
The composition according to claim 3 wherein the ethylenically unsaturated monomer comprises monovinylidene aromatic carbocyclic monomer.
Claim 8
Dependent Claim
14 words
The composition according to claim 1 wherein the ethylenically unsaturated monomer comprises conjugated diene.
Claim 9
Dependent Claim
16 words
The composition according to claim 1 wherein the ethylenically unsaturated monomer comprises vinYlbenzyl quaternary ammonium compound.
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |