US4266040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyazlactone-electron deficient ethylenically unsaturated resinous compositions and method for foaming same
Assignee: Stamicarbon BV
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Filing: 1980-06-27
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Granted: 1981-05-05
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Expires: 2000-06-27
Abstract
Abstract A reaction product of (1) resin containing a plurality of electron deficient ethylenically unsaturated groups and (2) a polyazlactone. The product may be formed without the liberation of a gas and cured at a higher temperature with the liberation of a gas to thereby form foamed product.
Inventors
- 👤 Shiow-Ching Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:21
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/02; Y; Y10; Y10S; Y10S521/00; Y10S521/901
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
102 words
A foamable composition comprising the reaction product of (1) at least one resin containing a plurality of electron deficient ethylenically unsaturated groups other than vinyl ester and vinyl ether groups and (2) a polyazlactone having the structural formula: ##STR5## wherein Z is a saturated aliphatic or aromatic polyvalent organic group; R is selected from the group consisting of hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms; and x is a number whose average value is at least about 2.
Claim 2
Dependent Claim
102 words
A foamable composition comprising the reaction product of (1) at least one resin containing a plurality of electron deficient ethylenically unsaturated groups other than vinyl ester and vinyl ether groups and (2) a polyazlactone having the structural formula: ##STR5## wherein Z is a saturated aliphatic or aromatic polyvalent organic group; R is selected from the group consisting of hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms; and x is a number whose average value is at least about 2.
Claim 3
Dependent Claim
44 words
The composition of claim 1 wherein said electron deficient ethylenically unsaturated groups comprise ethylenically unsaturated groups bonded directly to electron-withdrawing substituents, said electron-withdrawing substituents being selected from the group consisting of carbonyl groups, nitrile groups, nitro groups, sulfone groups, phenyl groups and chloro groups.
Claim 4
Dependent Claim
29 words
The composition of claim 2 wherein said electron-withdrawing substituent is the carbonyl group of a substituent selected from the group consisting of aldehyde, ketone, acid, ester, amide and imide.
Claim 5
Dependent Claim
18 words
The composition of claim 1 wherein Z is selected from the group consisting of para-phenylene, tetramethylene and dimethylene.
Claim 6
Dependent Claim
124 words
A composition foamable without the introduction of extraneous gas comprising the reaction product of (1) at least one resin containing a plurality of electron deficient ethylenically unsaturated groups other than vinyl ester and vinyl ether groups and (2) a polyazlactone having the structural formula: ##STR6## wherein Z is a saturated aliphatic or aromatic polyvalent organic group; R is selected from the group consisting of hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms; and x is a number whose average value is at least about 2; wherein said reaction is carried out at a temperature below which carbon dioxide gas is evolved.
Claim 7
Dependent Claim
124 words
A composition foamable without the introduction of extraneous gas comprising the reaction product of (1) at least one resin containing a plurality of electron deficient ethylenically unsaturated groups other than vinyl ester and vinyl ether groups and (2) a polyazlactone having the structural formula: ##STR6## wherein Z is a saturated aliphatic or aromatic polyvalent organic group; R is selected from the group consisting of hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms; and x is a number whose average value is at least about 2; wherein said reaction is carried out at a temperature below which carbon dioxide gas is evolved.
Claim 8
Dependent Claim
12 words
The composition of claim 5 wherein said reaction product is a solid.
Claim 9
Dependent Claim
21 words
The composition of claim 5 in which there are two resins, each containing a plurality of electron deficient ethylenically unsaturated groups.
Claim 10
Dependent Claim
12 words
The composition of claim 5 wherein said resin is a linear polyester.
Claim 11
Dependent Claim
14 words
The composition of claim 8 wherein said linear polyester is flowable at ambient temperature.
Claim 12
Dependent Claim
113 words
A foamable composition comprising the reaction product of (1) at least one linear polyester resin, flowable at ambient temperature and comprising a plurality of ethylenically unsaturated groups, each of said groups having at least one carbonyl group adjacent thereto, and (2) a polyazlactone having the structural formula: ##STR7## wherein Z is a saturated aliphatic or aromatic polyvalent organic group containing about 2 to about 16 carbon atoms; R is selected from hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms; and x is a number whose average value is about 2.
Claim 13
Dependent Claim
113 words
A foamable composition comprising the reaction product of (1) at least one linear polyester resin, flowable at ambient temperature and comprising a plurality of ethylenically unsaturated groups, each of said groups having at least one carbonyl group adjacent thereto, and (2) a polyazlactone having the structural formula: ##STR7## wherein Z is a saturated aliphatic or aromatic polyvalent organic group containing about 2 to about 16 carbon atoms; R is selected from hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms; and x is a number whose average value is about 2.
Claim 14
Dependent Claim
12 words
The composition of claim 10 wherein said polyazlactone has the structure: ##STR8##
Claim 15
Dependent Claim
18 words
The composition according to claim 10 wherein said polyester contains polyesterified maleic acid or fumaric acid repeating units.
Claim 16
Independent Claim
147 words
A method of forming a foam composition comprising: (A) reacting (1) at least one resin containing a plurality of electron deficient ethylenically unsaturated groups other than vinyl ester and vinyl ether groups with (2) a polyazlactone having the formula: ##STR9## wherein Z is a saturated aliphatic or aromatic polyvalent organic group; R is selected from hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms; and x is a number whose average value is at least about 2; so that at least some of said ethylenically unsaturated groups are reacted to form a reaction product, (B) causing said reaction product to foam by heating same, and (C) continuing said heating until the evolution of carbon dioxide gas ceases or the desired amount of foam is produced.
Claim 17
Independent Claim
147 words
A method of forming a foam composition comprising: (A) reacting (1) at least one resin containing a plurality of electron deficient ethylenically unsaturated groups other than vinyl ester and vinyl ether groups with (2) a polyazlactone having the formula: ##STR9## wherein Z is a saturated aliphatic or aromatic polyvalent organic group; R is selected from hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms; and x is a number whose average value is at least about 2; so that at least some of said ethylenically unsaturated groups are reacted to form a reaction product, (B) causing said reaction product to foam by heating same, and (C) continuing said heating until the evolution of carbon dioxide gas ceases or the desired amount of foam is produced.
Claim 18
Dependent Claim
29 words
The method of claim 13 wherein said resin is comprised of a plurality of ethylenically unsaturated groups, each of said groups having at least one carbonyl group adjacent thereto.
Claim 19
Dependent Claim
26 words
The method of claim 14 wherein said resin is a linear polyester, flowable at ambient temperature and comprising esterified maleic acid or fumaric acid repeating units.
Claim 20
Dependent Claim
23 words
The method of claim 13 wherein two resins each containing a plurality of electron deficient ethylenically unsaturated groups are reacted with said polyazlactone.
Claim 21
Independent Claim
91 words
A method of forming a foamable composition comprising reacting at a temperature of less than about 50° C. (1) at least one linear polyester, flowable at ambient temperature and comprising esterified maleic acid or fumaric acid repeating units with (2) a polyazlactone having the formula: ##STR10## wherein Z is selected from para-phenylene, tetramethylene and dimethylene, and R is selected from hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms.
Claim 22
Independent Claim
91 words
A method of forming a foamable composition comprising reacting at a temperature of less than about 50° C. (1) at least one linear polyester, flowable at ambient temperature and comprising esterified maleic acid or fumaric acid repeating units with (2) a polyazlactone having the formula: ##STR10## wherein Z is selected from para-phenylene, tetramethylene and dimethylene, and R is selected from hydrogen, saturated substituted and unsubstituted cyclic and acyclic radicals containing about 1 to about 10 carbon atoms, and substituted and unsubstituted aromatic radicals containing about 6 to about 10 carbon atoms.
Claim 23
Dependent Claim
24 words
The method of claim 17 wherein said foamable composition is a solid at ambient temperature and is formed without the evolution of a gas.
Claim 24
Dependent Claim
33 words
The method of forming a foam comprising heating the composition of claim 1 to a temperature of at least about 50° C., and continuing said heating until the evolution of carbon dioxide ceases.
Claim 25
Dependent Claim
48 words
The method of forming a foam comprising heating the composition of claim 5 to a temperature of about 50° C. to about 200° C. until evolution of carbon dioxide begins, and maintaining said temperature until the evolution of carbon dioxide ceases or a desired foam density is produced.
Claim 26
Dependent Claim
48 words
The method of forming a foam comprising heating the composition of claim 10 to a temperature of about 50° C. to about 200° C. until evolution of carbon dioxide begins, and maintaining said temperature until the evolution of carbon dioxide ceases or a desired foam density is produced.
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) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |