US4018725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenolic foam products and method of making the same
Assignee: SPX Technologies Inc
•
Filing: 1976-08-09
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Granted: 1977-04-19
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Expires: 1996-08-09
Abstract
Abstract Phenolic foam products are fabricated from phenol-aldehyde resol; a blowing agent; a condensation catalyst; a cell control agent; and an allyl ether of methylol-substituted phenol wherein the said allyl ether is present in a range from 0.5 to 25 percent by weight of the phenol-aldehyde resol. The function of the allyl ether is to overcome the extreme friability of the phenolic foam system.
Inventors
- 👤 John F. Hadley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:21
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/143; C08K; C08K5/00; C08K5/04; C08K5/06; C08J2361/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
21 words
A composition suitable for forming into a phenol-aldehyde foam product comprising: 1. phenol-aldehyde resol; 2. allyl ether of methylol-substituted phenol ##STR2##
Claim 2
Dependent Claim
21 words
A composition suitable for forming into a phenol-aldehyde foam product comprising: 1. phenol-aldehyde resol; 2. allyl ether of methylol-substituted phenol ##STR2##
Claim 3
Dependent Claim
41 words
halogenated alkane blowing agent having an atmospheric boiling temperature from -40° F to 200° F; and 4. a surfactant; the amount of said allyl ether of methylol-substituted phenol ranging from 0.5 to 25 percent by weight of the said phenol-aldehyde resol.
Claim 4
Dependent Claim
41 words
halogenated alkane blowing agent having an atmospheric boiling temperature from -40° F to 200° F; and 4. a surfactant; the amount of said allyl ether of methylol-substituted phenol ranging from 0.5 to 25 percent by weight of the said phenol-aldehyde resol.
Claim 5
Independent Claim
44 words
The method of preparing a phenolic resin foam comprising preparing an admixture of 1 part by weight of (A) a mixture including 1. 1 part by weight of phenol-aldehyde resol; 2. 0.005 to 0.25 parts by weight of allyl ether of methylol-substituted phenol ##STR3##
Claim 6
Independent Claim
44 words
The method of preparing a phenolic resin foam comprising preparing an admixture of 1 part by weight of (A) a mixture including 1. 1 part by weight of phenol-aldehyde resol; 2. 0.005 to 0.25 parts by weight of allyl ether of methylol-substituted phenol ##STR3##
Claim 7
Dependent Claim
55 words
0.1 to 0.4 parts by weight of polyhalogenated saturated fluorocarbon having an atmospheric boiling temperature of -40° F to 200° F; and 4. 0.01 to 0.1 parts by weight of a surfactant; and 0.1 to 0.2 parts by weight of (B) an acid curing catalyst for the said phenol-aldehyde resol; and curing the resulting admixture.
Claim 8
Dependent Claim
55 words
0.1 to 0.4 parts by weight of polyhalogenated saturated fluorocarbon having an atmospheric boiling temperature of -40° F to 200° F; and 4. 0.01 to 0.1 parts by weight of a surfactant; and 0.1 to 0.2 parts by weight of (B) an acid curing catalyst for the said phenol-aldehyde resol; and curing the resulting admixture.
References Cited (Backward Citations)
US2606935A
Cited
US3741920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |