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US4048145A
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Phenolic polymer prepared from o-cresol
Assignee: Celotex Corp
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Filing: 1975-09-17
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Granted: 1977-09-13
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Expires: 1995-09-17
Abstract
Abstract Phenolic polymers which can be produced by reacting ortho-cresol with other phenolic materials, such as phenol, are described. Phenolic compositions comprising these phenolic polymers mixed with other phenolic materials, cellular materials produced from these phenolic polymers having low friability, and related processes and products are also described.
Inventors
- 👤 Ernest K. Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:54
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/143; C08J9/147; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/12; C08G8/24; C08J2361/00; C08J2361/04; C08J2361/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
120 words
An alkylol group containing phenolic polymer of Formula I: ##STR11## wherein: a. R 1 is ##STR12## hydrogen or a radical of Formula II: ##STR13## 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 ##STR14## hydrogen or a radical of Formula II, wherein at least one of the R 3 's is alkylol, p1 d. the R 4 's are independently selected from the group consisting of lower alkyl, hydrogen, phenyl, benzyl, or furyl, e. m is an integer from 2 to 10 inclusive, f. the phenolic polymer has a molecular weight between 200 and 2000.
Claim 2
Dependent Claim
120 words
An alkylol group containing phenolic polymer of Formula I: ##STR11## wherein: a. R 1 is ##STR12## hydrogen or a radical of Formula II: ##STR13## 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 ##STR14## hydrogen or a radical of Formula II, wherein at least one of the R 3 's is alkylol, p1 d. the R 4 's are independently selected from the group consisting of lower alkyl, hydrogen, phenyl, benzyl, or furyl, e. m is an integer from 2 to 10 inclusive, f. the phenolic polymer has a molecular weight between 200 and 2000.
Claim 3
Dependent Claim
11 words
The phenolic polymer of claim 1 wherein R 2 is hydrogen.
Claim 4
Dependent Claim
11 words
The phenolic polymer of claim 1 wherein R 4 is hydrogen.
Claim 5
Dependent Claim
85 words
A methylol group containing phenolic polymer of claim 1 of Formula III: ##STR15## wherein: a. R 1 is HOCH 2 --, hydrogen, or a radical of Formula IV: ##STR16## b. the R 3 's are independently selected from the group consisting of HOCH 2 --, hydrogen, or a radical or Formula IV, wherein at least one of the R 3 's is methylol, c. m is an integer from 2 to 10 inclusive, d. the phenolic polymer has a molecular weight between 200 and 2000.
Claim 6
Dependent Claim
102 words
A methylol group containing phenolic polymer of Claim 1 of Formula III: ##STR17## wherein: a. R 1 is HOCH 2 --, hydrogen or a radical of Formula IV: ##STR18## b. the R 3 's are independently selected from the group consisting of HOCH 2 --, hydrogen or a radical of Formula IV, with the proviso that at least on R 3 is HOCH 2 --, c. m is an integer from 3 to 6 inclusive, d. the phenolic polymer has a molecular weight between 300 and 1500, e. the ratio of radicals of Formula IV to o-cresol units is 1:1.5 to 1.5:1.
Claim 7
Dependent Claim
146 words
A composition of matter comprising: A. an alkylol group containing phenolic polymer of claim 1 of Formula I: ##STR19## wherein: a. R 1 is ##STR20## hydrogen, or a radical of Formula II: ##STR21## 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 ##STR22## hydrogen, or a radical or Formula II, wherein at least one of the R 3 's is alkylol, d. the R 4 's are independently selected from the group consisting of lower alkyl, hydrogen, phenyl, benzyl, or furyl, e. m is an integer from 2 to 10 inclusive, f. the phenolic polymer has a molecular weight between 200 and 2000, and B. a compound of Formula V ##STR23## wherein the weight ratio of B-A is 1:30 to 1:2.
Claim 8
Dependent Claim
104 words
A composition of matter of claim 6 comprising: A. a methylol group containing phenolic polymer of Formula III: ##STR24## wherein: a. R 1 is HOCH 2 --, hydrogen or a radical of Formula IV: ##STR25## b. the R 3 's are independently selected from the group consisting of HOCH 2 --, hydrogen or a radical of Formula IV, wherein at least one of the R 3 's is methylol, c. m is an integer from 3 to 6 inclusive, d. the phenolic polymer has a molecular weight between 300 and 1500, and B. phenol, wherein the weight ratio of B:A is 1:20 to 1:5.
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) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |