Patent US2015891A successfully refreshed from Google Patents.
Patent US4182732A successfully refreshed from Google Patents.
US4182732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting phenolic resin coating and adhesive compositions
Assignee: Union Carbide Corp
•
Filing: 1977-09-28
•
Granted: 1980-01-08
•
Expires: 1997-09-28
Abstract
Abstract A coating and adhesive composition that may be in finely divided powder form is provided comprising a solid phenolic resole (one-step) resin having a gel time of between 150 seconds to about 250 seconds at 150 DEG C., said resin being the reaction product of bisphenol-A and formaldehyde at a mole ratio between about 2.11 to 2.64 moles of formaldehyde per mole of bisphenol-A in the presence of a catalytic quantity of a condensation catalyst at a temperature of at least about 70 DEG C. that is acidified to a pH from about 3 up to 7 and dehydrated.
Inventors
- 👤 John S. Fry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:13
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/04; C09D161/06; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C09J; C09J161/00; C09J161/04; C09J161/06; C08L; C08L101/00; C08L2666/00; C08L2666/02; C08L57/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
107 words
A coating and adhesive composition comprising a solid phenolic resole resin having a gel time of between about 150 seconds to about 250 seconds at 150° C., said resin being the reaction product of 2,2-bis(4-hydroxyphenyl) propane and formaldehyde at a mole ratio of from about 2.11 to about 2.64 moles of formaldehyde per mole of 2,2-bis(4-hydroxyphenyl) propane in the presence of a catalytic quantity of a condensation catalyst selected from the group consisting of an alkali metal hydroxide, barium oxide, and barium hydroxide at a temperature of at least about 70° C. that is acidified to a pH of from about 3 up to 7.0 and dehydrated.
Claim 2
Dependent Claim
107 words
A coating and adhesive composition comprising a solid phenolic resole resin having a gel time of between about 150 seconds to about 250 seconds at 150° C., said resin being the reaction product of 2,2-bis(4-hydroxyphenyl) propane and formaldehyde at a mole ratio of from about 2.11 to about 2.64 moles of formaldehyde per mole of 2,2-bis(4-hydroxyphenyl) propane in the presence of a catalytic quantity of a condensation catalyst selected from the group consisting of an alkali metal hydroxide, barium oxide, and barium hydroxide at a temperature of at least about 70° C. that is acidified to a pH of from about 3 up to 7.0 and dehydrated.
Claim 3
Dependent Claim
18 words
The composition of claim 1 in which said phenolic resole resin is in a finely divided powder form.
Claim 4
Dependent Claim
19 words
The composition of claim 1 wherein said solid resin cures at a temperature of at least about 140° C.
Claim 5
Dependent Claim
28 words
The composition of claim 1 wherein said solid phenolic resole resin is a finely divided powder adhesive that cures at a temperature of at least about 140° C.
Claim 6
Dependent Claim
31 words
The composition of claim 1 wherein said solid phenolic resole resin is a finely divided powder that cures to a continuous coating at a temperature of at least about 140° C.
Claim 7
Dependent Claim
20 words
A coating and adhesive composition comprising said solid phenolic resole resin of claim 1 dissolved in a suitable solvent therefor.
Claim 8
Dependent Claim
28 words
The composition of claim 6 wherein said resin solution is a coating material that cures to a continuous coating at a temperature of at least about 140° C.
Claim 9
Dependent Claim
15 words
The composition of claim 7 wherein said resin solution includes a siloxane copolymer leveling agent.
Claim 10
Dependent Claim
25 words
The composition of claim 1 comprising a combination of said phenolic resole resin and a compatible reactive polymer that will crosslink with said resole resin.
Claim 11
Dependent Claim
21 words
The composition of claim 9 wherein said combination of reactive polymer and phenolic resole resin is in finely divided powder form.
Claim 12
Dependent Claim
24 words
The composition of claim 9 wherein said reactive polymer is selected from the group consisting of epoxy, phenoxy, vinyl chloride copolymers and polyurethane resins.
References Cited (Backward Citations)
AU402911B2
Cited
US3640958A
Cited
US3657188A
Cited
US3816558A
Cited
US4020040A
Cited
US4116921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |