US4485236A
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Azlactone-functional compounds
Assignee: 3M Co
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Filing: 1982-09-27
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Granted: 1984-11-27
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Expires: 2002-09-27
Abstract
Abstract Azlactone-functional compounds, which are liquid above 20 DEG C., and their method of preparation from alkenyl azlactones and nucleophilic group-substituted compounds are disclosed. The azlactone-functional compounds of the invention cure in the presence of nucleophilic chain-extending or crosslinking agents to form linear or crosslinked polyamide resin systems.
Inventors
- 👤 Jerald K. Rasmussen
- 👤 Steven M. Heilmann
- 👤 Frederick J. Palensky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:21
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/30; C07D263/34; C07D263/36; C07D263/42; C08; C08G; C08G69/00; C08G69/42
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
269 words
An azlactone-functional compound having the formula ##STR11## wherein R 1 is hydrogen, chlorine or a methyl group; R 2 is a single bond or a methylene or ethylene group, the last two of which can be substituted by alkyl groups having 1 to 6 carbon atoms or phenyl groups; R 3 and R 4 are independently an alkyl or cycloalkyl group having up to 12 carbon atoms, an aryl or aralkyl group having 6 to 12 carbon atoms, or R 3 and R 4 taken together with the carbon atom to which they are attached form a 5- to 12-membered carbocyclic ring; X is a nucleophilic group selected from ##STR12## in which R 5 is a hydrocarbyl group selected from (1) an alkyl or cycloalkyl group having up to 18 carbon atoms and (2) an aryl or aralkyl group having 6 to 12 carbon atoms, R 5 being optionally substituted by at least one cyano or halo; R is a mono or polyvalent organic group that has a valence of n and is the residue of a nucleophilic group-substituted compound, (HX) n R, in which X is defined above, the residue having a molecular weight up to 20,000, R being selected from (1) an aliphatic group having 2 to 20 carbon atoms and an aryl group having up to 20 carbon atoms, these groups optionally having one to four catenary heteroatoms of oxygen, nitrogen or sulfur, (2) polyoxyalkylene, (3) polyester, (4) polyolefin, (5) polyacrylate, and (6) polysiloxane, all optionally including at least one non-nucleophilic or nucleophilic group; and n is an integer having a value of one to six.
Claim 2
Dependent Claim
269 words
An azlactone-functional compound having the formula ##STR11## wherein R 1 is hydrogen, chlorine or a methyl group; R 2 is a single bond or a methylene or ethylene group, the last two of which can be substituted by alkyl groups having 1 to 6 carbon atoms or phenyl groups; R 3 and R 4 are independently an alkyl or cycloalkyl group having up to 12 carbon atoms, an aryl or aralkyl group having 6 to 12 carbon atoms, or R 3 and R 4 taken together with the carbon atom to which they are attached form a 5- to 12-membered carbocyclic ring; X is a nucleophilic group selected from ##STR12## in which R 5 is a hydrocarbyl group selected from (1) an alkyl or cycloalkyl group having up to 18 carbon atoms and (2) an aryl or aralkyl group having 6 to 12 carbon atoms, R 5 being optionally substituted by at least one cyano or halo; R is a mono or polyvalent organic group that has a valence of n and is the residue of a nucleophilic group-substituted compound, (HX) n R, in which X is defined above, the residue having a molecular weight up to 20,000, R being selected from (1) an aliphatic group having 2 to 20 carbon atoms and an aryl group having up to 20 carbon atoms, these groups optionally having one to four catenary heteroatoms of oxygen, nitrogen or sulfur, (2) polyoxyalkylene, (3) polyester, (4) polyolefin, (5) polyacrylate, and (6) polysiloxane, all optionally including at least one non-nucleophilic or nucleophilic group; and n is an integer having a value of one to six.
Claim 3
Dependent Claim
14 words
The compound according to claim 1 further characterized as a liquid above 20° C.
Claim 4
Dependent Claim
26 words
The compound according to claim 1 wherein said non-nucleophilic group optionally included in R is selected from cyano, halo, ester, ether, keto, nitro, trimethoxysilyl, and sulfide.
Claim 5
Dependent Claim
22 words
The azlactone-functional compound according to claim 1 selected from the class consisting of 1,2-bis[2-(4,4-dimethyl-2-oxazolin-5-one-2-yl)ethylthio]thane, 1,10-bis[2-(4,4-dimethyl-2-oxazolin-5-one-2-yl)ethylthio]-4,7-dioxadecane-3,8-dione, 1,5-bis[2-(4,4-dimethyl-2-oxazolin-5-one-2-yl)ethylthio]-3-oxapentane, 1,1,1-tris[2-[2-(4,4-dimethyl-2-oxazolin-5-one-2-yl)ethylthio]ethylcarbonyloxymethyl]propane, 1,8-bis[2-(4,4-dimethyl-2-oxazolin-5-one-2-yl)ethylthio]-3,6-dioxaoctane-2,7-dione, 1,1,1-tris[2-[2-(4,4-dimethyl-2-oxazolin-5-one-2-yl)ethylthio]-methylcarbonyloxymethyl]propane, 1-trimethylsilyl-3-[2-(4,4-dimethyl-2-oxazolin-5-one-2-yl)ethylthio]propane, and α,ω-bis[5-(4,4-dimethyl-2-oxazolin-5-one-2-yl)-3-aza-3-(2-cyanoethyl)-2-methylpentyl]poly(oxypropylene).
Claim 6
Dependent Claim
29 words
The compound according to claim 1 wherein said nucleophilic group optionally included in R is selected from the group consisting of secondary amino groups, hydroxyl groups, and mercapto groups.
Claim 7
Dependent Claim
15 words
The compound according to claim 1 having a melting point of less than 50° C.
Claim 8
Independent Claim
309 words
A method for preparing azlactone-functional compounds comprising the steps: (1) admixing (a) one to n gram moles of at least one alkenyl azlactone having the formula: ##STR13## wherein R 1 is hydrogen, chlorine or a methyl group; R 2 is a single bond or a methylene or ethylene group, the last two of which can be substituted by alkyl groups having 1 to 6 carbon atoms or phenyl groups; R 3 and R 4 are independently an alkyl or cycloalkyl group having up to 12 carbon atoms, an aryl or aralkyl group having 6 to 12 carbon atoms, or R 3 and R 4 taken together with the carbon atom to which they are attached form a 5- to 12-membered carbocyclic ring; (b) one gram mole of at least one nucleophilic group substituted compound having the formula: (HX).sub.n R Formula III X is a nucleophilic group selected from ##STR14## in which R 5 is a hydrocarbyl group selected from (1) an alkyl or cycloalkyl group having up to 18 carbon atoms and (2) an aryl or aralkyl group have 6 to 12 carbon atoms, R 5 being optionally substituted by at least one cyano or halo group; R is a mono or polyvalent organic group that has a valence of n and is the residue of a nucleophilic group-substituted compound, (HX) n R, in which X is defined above, the residue having a molecular weight up to 20,000, R being selected from (1) an aliphatic group having 2 to 20 carbon atoms and an aryl group having up to 20 carbon atoms, these groups optionally having one to four catenary heteroatoms of oxygen, nitrogen or sulfur, (2) polyoxyalkylene, (3) polyester, (4) polyolefin, (5) polyacrylate, and (6) polysiloxane, all optionally including at least one non-nucleophilic or nucleophilic group; and n is an integer having a value of one to six.
Claim 9
Independent Claim
309 words
A method for preparing azlactone-functional compounds comprising the steps: (1) admixing (a) one to n gram moles of at least one alkenyl azlactone having the formula: ##STR13## wherein R 1 is hydrogen, chlorine or a methyl group; R 2 is a single bond or a methylene or ethylene group, the last two of which can be substituted by alkyl groups having 1 to 6 carbon atoms or phenyl groups; R 3 and R 4 are independently an alkyl or cycloalkyl group having up to 12 carbon atoms, an aryl or aralkyl group having 6 to 12 carbon atoms, or R 3 and R 4 taken together with the carbon atom to which they are attached form a 5- to 12-membered carbocyclic ring; (b) one gram mole of at least one nucleophilic group substituted compound having the formula: (HX).sub.n R Formula III X is a nucleophilic group selected from ##STR14## in which R 5 is a hydrocarbyl group selected from (1) an alkyl or cycloalkyl group having up to 18 carbon atoms and (2) an aryl or aralkyl group have 6 to 12 carbon atoms, R 5 being optionally substituted by at least one cyano or halo group; R is a mono or polyvalent organic group that has a valence of n and is the residue of a nucleophilic group-substituted compound, (HX) n R, in which X is defined above, the residue having a molecular weight up to 20,000, R being selected from (1) an aliphatic group having 2 to 20 carbon atoms and an aryl group having up to 20 carbon atoms, these groups optionally having one to four catenary heteroatoms of oxygen, nitrogen or sulfur, (2) polyoxyalkylene, (3) polyester, (4) polyolefin, (5) polyacrylate, and (6) polysiloxane, all optionally including at least one non-nucleophilic or nucleophilic group; and n is an integer having a value of one to six.
Claim 10
Dependent Claim
30 words
The method according to claim 7 wherein said non-nucleophilic group optionally included in R is selected from the group consisting of cyano, halo, ester, ether, keto, nitro, trimethoxysilyl, and sulfide.
Claim 11
Dependent Claim
27 words
The method according to claim 7 wherein said nucleophilic group optionally included in R is selected from the group consisting of secondary amino, hydroxyl, and mercapto groups.
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) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |