US4140842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenolic foam and surfactant useful therein
Assignee: Celotex Corp
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Filing: 1977-09-29
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Granted: 1979-02-20
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Expires: 1997-09-29
Abstract
Abstract {PG,1 A closed cell phenolic-resin foam material comprising phenolic-resin foam forming reactants, a blowing agent, and a surfactant which is the capped reaction product of an alkoxylated amine and a copolymerizable mixture of dialkyl maleate with N-vinyl-2-pyrrolidone or N-vinyl caprolactam.
Inventors
- 👤 John H. Beale
- 👤 Ernest K. Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:12
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08F; C08F283/00; C08F287/00; C08J2361/00; C08J2361/04; C08J2361/06; C08J2451/00; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249977
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
101 words
A closed cell foam material comprising the reaction product of: A. phenolic-resin foam forming reactants, B. a blowing agent, C. a surfactant which is the reaction product of: I. an alkoxylated amine of Formula VI ##STR3## wherein: (a) R 5 is an alkoxylated chain of Formula VII, having terminal hydroxyl groups, ##STR4## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 15:85 to 85:15 with Ii. a copolymerizable mixture of dialkyl maleate and a member selected from the group consisting of N-vinyl-2-pyrrolidone and N-vinyl caprolactam, and Iii. a capping agent for the terminal hydroxyl groups.
Claim 2
Dependent Claim
101 words
A closed cell foam material comprising the reaction product of: A. phenolic-resin foam forming reactants, B. a blowing agent, C. a surfactant which is the reaction product of: I. an alkoxylated amine of Formula VI ##STR3## wherein: (a) R 5 is an alkoxylated chain of Formula VII, having terminal hydroxyl groups, ##STR4## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 15:85 to 85:15 with Ii. a copolymerizable mixture of dialkyl maleate and a member selected from the group consisting of N-vinyl-2-pyrrolidone and N-vinyl caprolactam, and Iii. a capping agent for the terminal hydroxyl groups.
Claim 3
Dependent Claim
22 words
The closed cell foam material of claim 1 wherein the phenolic resin foam forming reactants comprise phenol and an ortho-cresol-phenol block copolymer.
Claim 4
Dependent Claim
23 words
The closed cell foam material of claim 2 wherein the ratio of phenol to ortho-cresol in the phenolic resin is 1:1.5 to 10:1.
Claim 5
Dependent Claim
15 words
The closed cell foam material of claim 1 wherein the capping agent is acetic anhydride.
Claim 6
Dependent Claim
19 words
The closed cell foam material of claim 1 wherein the surfactant has a hydroxyl value of less than 50.
Claim 7
Dependent Claim
33 words
The closed cell foam material of claim 1 wherein the blowing agent is present in an amount sufficient to give the resultant foam a density of 0.5 to 10 pounds per cubic foot.
Claim 8
Dependent Claim
22 words
The closed cell foam material of claim 1 wherein the blowing agent comprises 1 to 30 weight percent of the foam material.
Claim 9
Dependent Claim
22 words
The closed cell foam material of claim 1 wherein the surfactant comprises from 0.05 to 10 weight percent of the foam material.
Claim 10
Dependent Claim
20 words
The closed cell foam material of claim 1 wherein the alkoxylated amine has a molecular weight between 1500 and 6000.
Claim 11
Dependent Claim
25 words
The closed cell foam material of claim 1 wherein the copolymerizable mixture comprises 5 to 40 weight percent based on the weight of the surfactant.
Claim 12
Dependent Claim
21 words
The closed cell foam material of claim 1 wherein the alkyl of the dialkyl maleate has 1 to 5 carbon atoms.
Claim 13
Dependent Claim
270 words
A closed cell foam material comprising the reaction product of: A. an alkylol group containing phenolic polymer of Formula I ##STR5## wherein: (a) R 1 is ##STR6## hydrogen, or a radical of Formula II, ##STR7## (b) the R 2 's are independently selected from the group consisting of lower alkyl, phenyl, benzyl, halo, nitro and hydrogen, (c) the R 3 's are independently selected from the group consisting of ##STR8## hydrogen, and a radical of Formula II, (d) the R 4 's are independently selected from the group consisting of lower alkyl, hydrogen, phenyl, benzyl, and furyl, (e) x is an integer from 2 to 10 inclusive, (f) the phenolic polymer has a molecular weight between 200 and 2000, B. a compound of Formula V ##STR9## wherein the weight ratio of B:A is 1:30 to 1:2, C. a blowing agent in a minor amount sufficient to foam the reaction mixture, and D. a surfactant which is the reaction product of I. an alkoxylated amine of Formula VI ##STR10## wherein: (a) R 5 is an alkoxylated chain of Formula VII, having terminal hydroxyl groups, ##STR11## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 15:85 to 85:15, (d) the molecular weight of the alkoxylated amine is 1500 to 6000, and Ii. a copolymerizable mixture of dialkyl maleate and a member selected from the group consisting of N-vinyl-2-pyrrolidone and N-vinyl caprolactam, Iii. a capping agent for the terminal hydroxyl groups selected from the group consisting of acetic acid, acetic anhydride, acetyl chloride, and 3,5-dinitrobenzoyl chloride, so that the surfactant has a hydroxyl value less than 10.
Claim 14
Dependent Claim
270 words
A closed cell foam material comprising the reaction product of: A. an alkylol group containing phenolic polymer of Formula I ##STR5## wherein: (a) R 1 is ##STR6## hydrogen, or a radical of Formula II, ##STR7## (b) the R 2 's are independently selected from the group consisting of lower alkyl, phenyl, benzyl, halo, nitro and hydrogen, (c) the R 3 's are independently selected from the group consisting of ##STR8## hydrogen, and a radical of Formula II, (d) the R 4 's are independently selected from the group consisting of lower alkyl, hydrogen, phenyl, benzyl, and furyl, (e) x is an integer from 2 to 10 inclusive, (f) the phenolic polymer has a molecular weight between 200 and 2000, B. a compound of Formula V ##STR9## wherein the weight ratio of B:A is 1:30 to 1:2, C. a blowing agent in a minor amount sufficient to foam the reaction mixture, and D. a surfactant which is the reaction product of I. an alkoxylated amine of Formula VI ##STR10## wherein: (a) R 5 is an alkoxylated chain of Formula VII, having terminal hydroxyl groups, ##STR11## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 15:85 to 85:15, (d) the molecular weight of the alkoxylated amine is 1500 to 6000, and Ii. a copolymerizable mixture of dialkyl maleate and a member selected from the group consisting of N-vinyl-2-pyrrolidone and N-vinyl caprolactam, Iii. a capping agent for the terminal hydroxyl groups selected from the group consisting of acetic acid, acetic anhydride, acetyl chloride, and 3,5-dinitrobenzoyl chloride, so that the surfactant has a hydroxyl value less than 10.
Claim 15
Dependent Claim
216 words
A closed cell foam material comprising the reaction product of: A. a methylol group containing phenolic polymer of Formula III ##STR12## wherein: (a) R 1 is HOCH 2 --, hydrogen or a radical of Formula IV, ##STR13## (b) the R 3 's are independently selected from the group consisting of HOCH 2 --, hydrogen and a radical of Formula IV, (c) x is an integer from 3 to 6 inclusive, (d) the phenolic polymer has a molecular weight between 300 and 1500, B. phenol, wherein the weight ratio of B:A is 1:20 to 1:5, C. a blowing agent in a minor amount sufficient to foam the reaction mixture, D. a surfactant which is the reaction product of: I. an alkoxylated amine of Formula VI ##STR14## wherein: (a) R 5 is an alkoxylated chain of Formula VII, ##STR15## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 20:80 to 60:40, (d) the molecular weight of the alkoxylated amine is 1800 to 2800, Ii. a copolymerizable mixture of dibutyl maleate and N-vinyl-2-pyrrolidone wherein the copolymerizable mixture comprises 20 weight percent based on the weight of the reaction product, and the molar ratio of dibutyl maleate to N-vinyl-2-pyrrolidone is 1:1, Iii. acetic anhydride, wherein the surfactant has a hydroxyl value less than 10.
Claim 16
Dependent Claim
216 words
A closed cell foam material comprising the reaction product of: A. a methylol group containing phenolic polymer of Formula III ##STR12## wherein: (a) R 1 is HOCH 2 --, hydrogen or a radical of Formula IV, ##STR13## (b) the R 3 's are independently selected from the group consisting of HOCH 2 --, hydrogen and a radical of Formula IV, (c) x is an integer from 3 to 6 inclusive, (d) the phenolic polymer has a molecular weight between 300 and 1500, B. phenol, wherein the weight ratio of B:A is 1:20 to 1:5, C. a blowing agent in a minor amount sufficient to foam the reaction mixture, D. a surfactant which is the reaction product of: I. an alkoxylated amine of Formula VI ##STR14## wherein: (a) R 5 is an alkoxylated chain of Formula VII, ##STR15## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 20:80 to 60:40, (d) the molecular weight of the alkoxylated amine is 1800 to 2800, Ii. a copolymerizable mixture of dibutyl maleate and N-vinyl-2-pyrrolidone wherein the copolymerizable mixture comprises 20 weight percent based on the weight of the reaction product, and the molar ratio of dibutyl maleate to N-vinyl-2-pyrrolidone is 1:1, Iii. acetic anhydride, wherein the surfactant has a hydroxyl value less than 10.
Claim 17
Dependent Claim
106 words
A process for producing a closed cell foam material, said process comprising reacting phenolic-resin foam forming reactants in the presence of a blowing agent and a surfactant which is the reaction product of: I. an alkoxylated amine of Formula VI ##STR16## wherein: (a) R 5 is an alkoxylated chain of Formula VII, having terminal hydroxyl groups, ##STR17## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 15:85 to 85:15 with Ii. a copolymerizable mixture of dialkyl maleate and a member selected from the group consisting of N-vinyl-2-pyrrolidone and N-vinyl caprolactam, and Iii. a capping agent for the terminal hydroxyl groups.
Claim 18
Dependent Claim
106 words
A process for producing a closed cell foam material, said process comprising reacting phenolic-resin foam forming reactants in the presence of a blowing agent and a surfactant which is the reaction product of: I. an alkoxylated amine of Formula VI ##STR16## wherein: (a) R 5 is an alkoxylated chain of Formula VII, having terminal hydroxyl groups, ##STR17## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 15:85 to 85:15 with Ii. a copolymerizable mixture of dialkyl maleate and a member selected from the group consisting of N-vinyl-2-pyrrolidone and N-vinyl caprolactam, and Iii. a capping agent for the terminal hydroxyl groups.
Claim 19
Dependent Claim
132 words
A process for producing a closed cell foam material, said process comprising reacting phenolic-resin foam forming reactants in the presence of a blowing agent and a surfactant which is the reaction product of: I. an alkoxylated amine of Formula VI ##STR18## wherein: (a) R 5 is an alkoxylated chain of Formula VII, ##STR19## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 20:80 to 60:40, (d) the molecular weight of the alkoxylated amine is 1800 to 2800, Ii. a copolymerizable mixture of dibutyl maleate and N-vinyl-2-pyrrolidone wherein the copolymerizable mixture comprises 20 weight percent based on the weight of the reaction product, and the molar ratio of dibutyl maleate to N-vinyl-2-pyrrolidone is 1:1, Iii. acetic anhydride, wherein the surfactant has a hydroxyl value less than 10.
Claim 20
Dependent Claim
132 words
A process for producing a closed cell foam material, said process comprising reacting phenolic-resin foam forming reactants in the presence of a blowing agent and a surfactant which is the reaction product of: I. an alkoxylated amine of Formula VI ##STR18## wherein: (a) R 5 is an alkoxylated chain of Formula VII, ##STR19## (b) n is an integer from 2 to 10 inclusive, (c) the ratio p:q is 20:80 to 60:40, (d) the molecular weight of the alkoxylated amine is 1800 to 2800, Ii. a copolymerizable mixture of dibutyl maleate and N-vinyl-2-pyrrolidone wherein the copolymerizable mixture comprises 20 weight percent based on the weight of the reaction product, and the molar ratio of dibutyl maleate to N-vinyl-2-pyrrolidone is 1:1, Iii. acetic anhydride, wherein the surfactant has a hydroxyl value less than 10.
References Cited (Backward Citations)
US3876620A
Cited
US4036793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |